Stringboot druid框架搭建的时候报错 代码及报错如下,请大佬解答感激不尽

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2018-10-30 17:23:56.726 ERROR 4728 --- [ main] o.s.boot.SpringApplication : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'druidDataSource' defined in class path resource [com/feifan/config/DruidConfig.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'druidDataSource' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/log4j/Logger
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:591) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1246) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:548) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) [spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at com.feifan.WechatActivityApplication.main(WechatActivityApplication.java:18) [classes/:na]
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'druidDataSource' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/log4j/Logger
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:583) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
... 18 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Logger
at com.alibaba.druid.filter.logging.Log4jFilter.(Log4jFilter.java:26) ~[druid-1.1.9.jar:1.1.9]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_121]
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_121]
at java.lang.Class.newInstance(Class.java:442) ~[na:1.8.0_121]
at com.alibaba.druid.filter.FilterManager.loadFilter(FilterManager.java:114) ~[druid-1.1.9.jar:1.1.9]
at com.alibaba.druid.pool.DruidAbstractDataSource.addFilters(DruidAbstractDataSource.java:1286) ~[druid-1.1.9.jar:1.1.9]
at com.alibaba.druid.pool.DruidAbstractDataSource.setFilters(DruidAbstractDataSource.java:1275) ~[druid-1.1.9.jar:1.1.9]
at com.feifan.config.DruidConfig.druidDataSource(DruidConfig.java:44) ~[classes/:na]
at com.feifan.config.DruidConfig$$EnhancerBySpringCGLIB$$1be46309.CGLIB$druidDataSource$2() ~[classes/:na]
at com.feifan.config.DruidConfig$$EnhancerBySpringCGLIB$$1be46309$$FastClassBySpringCGLIB$$f7c1e78f.invoke() ~[classes/:na]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:365) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at com.feifan.config.DruidConfig$$EnhancerBySpringCGLIB$$1be46309.druidDataSource() ~[classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
... 19 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Logger
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_121]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_121]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_121]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_121]
... 39 common frames omitted

Disconnected from the target VM, address: '127.0.0.1:57637', transport: 'socket'

Process finished with exit code 1


2个回答

import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.http.StatViewServlet;
import com.alibaba.druid.support.http.WebStatFilter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.sql.DataSource;
import java.sql.SQLException;

@Configuration
@EnableConfigurationProperties({DruidDataSourceProperties.class})
public class DruidConfig {
@Autowired
private DruidDataSourceProperties properties;

@Bean
@ConditionalOnMissingBean
public DataSource druidDataSource() {
    DruidDataSource druidDataSource = new DruidDataSource();
    druidDataSource.setDriverClassName(properties.getDriverClassName());
    druidDataSource.setUrl(properties.getUrl());
    druidDataSource.setUsername(properties.getUsername());
    druidDataSource.setPassword(properties.getPassword());
    druidDataSource.setInitialSize(properties.getInitialSize());
    druidDataSource.setMinIdle(properties.getMinIdle());
    druidDataSource.setMaxActive(properties.getMaxActive());
    druidDataSource.setMaxWait(properties.getMaxWait());
    druidDataSource.setTimeBetweenEvictionRunsMillis(properties.getTimeBetweenEvictionRunsMillis());
    druidDataSource.setMinEvictableIdleTimeMillis(properties.getMinEvictableIdleTimeMillis());
    druidDataSource.setValidationQuery(properties.getValidationQuery());
    druidDataSource.setTestWhileIdle(properties.isTestWhileIdle());
    druidDataSource.setTestOnBorrow(properties.isTestOnBorrow());
    druidDataSource.setTestOnReturn(properties.isTestOnReturn());
    druidDataSource.setPoolPreparedStatements(properties.isPoolPreparedStatements());
    druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(properties.getMaxPoolPreparedStatementPerConnectionSize());

    try {
        druidDataSource.setFilters(properties.getFilters());
        druidDataSource.init();
    } catch (SQLException e) {
        e.printStackTrace();
    }

    return druidDataSource;
}

/**
 * 注册Servlet信息, 配置监控视图
 *
 * @return
 */
@Bean
@ConditionalOnMissingBean
public ServletRegistrationBean druidServlet() {
    ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*");

    //白名单:
    servletRegistrationBean.addInitParameter("allow","192.168.6.195");
    //IP黑名单 (存在共同时,deny优先于allow) : 如果满足deny的话提示:Sorry, you are not permitted to view this page.
    servletRegistrationBean.addInitParameter("deny","192.168.6.73");
    //登录查看信息的账号密码, 用于登录Druid监控后台
    servletRegistrationBean.addInitParameter("loginUsername", "admin");
    servletRegistrationBean.addInitParameter("loginPassword", "admin");
    //是否能够重置数据.
    servletRegistrationBean.addInitParameter("resetEnable", "true");
    return servletRegistrationBean;

}

/**
 * 注册Filter信息, 监控拦截器
 *
 * @return
 */
@Bean
@ConditionalOnMissingBean
public FilterRegistrationBean filterRegistrationBean() {
    FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean();
    filterRegistrationBean.setFilter(new WebStatFilter());
    filterRegistrationBean.addUrlPatterns("/*");
    filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*");
    return filterRegistrationBean;
}

}


Failed to instantiate [javax.sql.DataSource]: Factory method 'druidDataSource' threw exception; nested exception is java.lang.NoClassDefFoundError: org/apache/log4j/Logger
根据这个报错是项目的pom 中没引入log4j的jar包,如果使用的logback就用log4j-over-slf4j这个jar来桥接一下

Csdn user default icon
上传中...
上传图片
插入图片
抄袭、复制答案,以达到刷声望分或其他目的的行为,在CSDN问答是严格禁止的,一经发现立刻封号。是时候展现真正的技术了!
其他相关推荐
springboot配置完druid,spring监控没有数据?

![图片说明](https://img-ask.csdn.net/upload/201908/10/1565422211_555424.png) 配置完之后,sql监控有数据,spring监控没有有数据,啥情况? ![图片说明](https://img-ask.csdn.net/upload/201908/10/1565422357_288228.png) ``` @Configuration public class DruidConfig { /** * 配置Druid监控 * 后台管理Servlet * @return */ @Bean public ServletRegistrationBean statViewServlet(){ ServletRegistrationBean bean = new ServletRegistrationBean(new StatViewServlet(), "/druid/*"); Map<String,String> initParams = new HashMap<>(); initParams.put("loginUsername","admin"); initParams.put("loginPassword","admin"); //默认就是允许所有访问 initParams.put("allow",""); //黑名单的IP initParams.put("deny","192.168.15.21"); bean.setInitParameters(initParams); return bean; } /** * 配置web监控的filter * @return */ @Bean public FilterRegistrationBean webStatFilter(){ FilterRegistrationBean bean = new FilterRegistrationBean(); bean.setFilter(new WebStatFilter()); Map<String,String> initParams = new HashMap<>(); initParams.put("exclusions","/static/*,*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"); bean.setInitParameters(initParams); bean.setUrlPatterns(Arrays.asList("/*")); return bean; } } ```

springboot2.1.8集成druid连接池 无法实现sql监控

![图片说明](https://img-ask.csdn.net/upload/201910/15/1571113606_898290.jpg) sql监控没有数据 连接池配置: initial-size: 10 # 最大连接数 max-active: 50 #最小连接数 min-idle: 10 #获取连接等待超时时间 max-wait: 5000 pool-prepared-statements: true #是否缓存preparedStatement,也就是PSCache。PSCache对支持游标的数据库性能提升巨大,比如说oracle。在mysql下建议关闭。 max-pool-prepared-statement-per-connection-size: 20 validation-query: SELECT 1 FROM DUAL validation-query-timeout: 20000 test-on-borrow: false #申请连接时执行validationQuery检测连接是否有效,做了这个配置会降低性能。 test-on-return: false #归还连接时执行validationQuery检测连接是否有效,做了这个配置会降低性能。 test-while-idle: true #建议配置为true,不影响性能,并且保证安全性。申请连接的时候检测,如果空闲时间大于timeBetweenEvictionRunsMillis,执行validationQuery检测连接是否有效。 time-between-eviction-runs-millis: 60000 #配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 min-evictable-idle-time-millis: 300000 #一个连接在池中最小生存的时间,单位是毫秒 #通过connectionProperties属性来打开mergeSql功能;慢sql记录 connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000 # StatViewServlet配置。(因为暴露的监控信息比较敏感,支持密码加密和访问ip限定) stat-view-servlet: # 是否启用WebStatFilter enabled: true # 访问路径 url-pattern: "/druid/*" # 排除不必要的url exclusions: "*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico" # 监控最大session数,默认是1000 session-stat-max-count: 1000 # 是否启用session的统计功能 session-stat-enable: true # 是否启用监控单个Url调用的sql列表 profile-enable: true # 使druid当前session的用户是谁,session_user_key是你保存到session中的sessionName principalSessionName: session_user_key # 使druid只当当前的user是谁,cookie_user_key是你保存在cookie中的cookieName principalCookieName: cookie_user_key #可以增加访问账号密码【去掉注释就可以】 #login-username: admin #login-password: admin filter: # 监控统计 stat: # 数据库类型 db-type: mysql # 慢SQL log-slow-sql: true # 慢SQL执行时间 slow-sql-millis: 1000 merge-sql: true wall: config: multi-statement-allow: true ###试了各种方法sql监控就是没有出来

druid加密报错,使用明文密码则正确

![图片说明](https://img-ask.csdn.net/upload/201912/06/1575625138_167873.png) 以上这样使用,直接使用明文密码则是正确的 但是使用druid加密之后则报错 ![图片说明](https://img-ask.csdn.net/upload/201912/06/1575625189_110418.png) ![图片说明](https://img-ask.csdn.net/upload/201912/06/1575625198_367687.png) 哪位大佬知道为什么?

Springboot+JDBCTemplete+MySQL InnoDB+druid连接池事务出问题

方法如下: tb_counter中只有一行记录,用作计数器变量,每次执行gogo会将其加100 然后将其值插入tb_block 可重复读情况下,单个访问没问题,但并发访问总是抛异常说:插入tb_block时主键值重复 System.out输出的num也重复了 理论上num应该在事务中锁定,每次增加100,应该不可能有重复的才对啊 log中事务也显示正常开启和完成 但把druid连接数设置为1时,就不会出现这个问题 把事务隔离级别设置为最高时也不会出现,但是会老抛异常说死锁 mysql重启了,也一样,数据库清了也一样。。。。。 生无可恋。。。。 ```java @Autowired JdbcTemplate jdbct; @Transactional(propagation=Propagation.REQUIRED) public String gogo() { Long num=jdbct.queryForObject("SELECT num FROM tb_counter WHERE id = 0",Long.class); System.out.println(num); jdbct.update("INSERT INTO tb_block(id,state) VALUE("+num+",'DNF')"); jdbct.update("UPDATE tb_counter SET num="+(num+100)+" WHERE id = 0"); return num.toString(); } } ```

Springboot Druid +mybatis 多数据源监控,只能监控到主库SQL,从库不行

配置如下 spring: circle-datasource: #从库 #123.207.23.166:3306 name: db url: jdbc:mysql://119.29.208.67:3307/ws?useSSL=false&amp;useUnicode=true&amp;characterEncoding=utf-8&amp;allowMultiQueries=true username: root password: ***** driver-class-name: com.mysql.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource minIdle: 5 maxActive: 100 initialSize: 10 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: select 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 50 removeAbandoned: true spring: datasource: #主库 #123.207.23.166:3306 name: db url: jdbc:mysql://119.29.208.67:3306/ws?useSSL=false&amp;useUnicode=true&amp;characterEncoding=utf-8&amp;allowMultiQueries=true username: momo password: ***** driver-class-name: com.mysql.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource minIdle: 5 maxActive: 100 initialSize: 10 maxWait: 60000 timeBetweenEvictionRunsMillis: 60000 minEvictableIdleTimeMillis: 300000 validationQuery: select 'x' testWhileIdle: true testOnBorrow: false testOnReturn: false poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 50 removeAbandoned: true filters: stat connectionProperties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000 # 通过connectProperties属性来打开mergeSql功能;慢SQL记录 useGlobalDataSourceStat: true # 合并多个DruidDataSource的监控数据 druidLoginName: momo # 登录druid的账号 druidPassword: momo # 登录druid的密码 ---------------------------------------------- @Bean(name="circleDataSource",destroyMethod = "close", initMethod="init") public DataSource dataSource(){ DruidDataSource datasource = new DruidDataSource(); try { datasource.setUrl(this.url); datasource.setDbType(type); datasource.setUsername(username); datasource.setPassword(password); datasource.setDriverClassName(driverClassName); datasource.setInitialSize(initialSize); datasource.setMinIdle(minIdle); datasource.setMaxActive(maxActive); datasource.setMaxWait(maxWait); datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis); datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis); datasource.setValidationQuery(validationQuery); datasource.setTestWhileIdle(testWhileIdle); datasource.setTestOnBorrow(testOnBorrow); datasource.setTestOnReturn(testOnReturn); datasource.setPoolPreparedStatements(poolPreparedStatements); datasource.setFilters(filters); datasource.setUseGlobalDataSourceStat(true); } catch (Exception e) { logger.error("druid configuration initialization filter", e); } return datasource; } ---------------------主库------- @Bean(name="dataSource",destroyMethod = "close", initMethod="init") @Primary //不要漏了这 public DataSource dataSource(){ DruidDataSource datasource = new DruidDataSource(); try { datasource.setUrl(this.dbUrl); datasource.setDbType(dbType); datasource.setUsername(username); datasource.setPassword(password); datasource.setDriverClassName(driverClassName); datasource.setInitialSize(initialSize); datasource.setMinIdle(minIdle); datasource.setMaxActive(maxActive); datasource.setMaxWait(maxWait); datasource.setTimeBetweenEvictionRunsMillis(timeBetweenEvictionRunsMillis); datasource.setMinEvictableIdleTimeMillis(minEvictableIdleTimeMillis); datasource.setValidationQuery(validationQuery); datasource.setTestWhileIdle(testWhileIdle); datasource.setTestOnBorrow(testOnBorrow); datasource.setTestOnReturn(testOnReturn); datasource.setPoolPreparedStatements(poolPreparedStatements); datasource.setFilters(filters); datasource.setUseGlobalDataSourceStat(true); } catch (SQLException e) { logger.error("druid configuration initialization filter", e); } return datasource; } ///////// 下面是druid 监控访问的设置 ///////////////// @Bean public ServletRegistrationBean druidServlet() { ServletRegistrationBean reg = new ServletRegistrationBean(); reg.setServlet(new StatViewServlet()); reg.addUrlMappings("/druid/*"); //url 匹配 // reg.addInitParameter("allow", "192.168.16.110,127.0.0.1"); // IP白名单 (没有配置或者为空,则允许所有访问) // reg.addInitParameter("deny", "192.168.16.111"); //IP黑名单 (存在共同时,deny优先于allow) reg.addInitParameter("loginUsername", this.druidLoginName);//登录名 reg.addInitParameter("loginPassword", this.druidPassword);//登录密码 reg.addInitParameter("resetEnable", "false"); // 禁用HTML页面上的“Reset All”功能 return reg; } @Bean(name="druidWebStatFilter") public FilterRegistrationBean filterRegistrationBean() { FilterRegistrationBean filterRegistrationBean = new FilterRegistrationBean(); filterRegistrationBean.setFilter(new WebStatFilter()); filterRegistrationBean.addUrlPatterns("/*"); filterRegistrationBean.addInitParameter("exclusions", "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*"); //忽略资源 filterRegistrationBean.addInitParameter("profileEnable", "true"); filterRegistrationBean.addInitParameter("principalCookieName", "USER_COOKIE"); filterRegistrationBean.addInitParameter("principalSessionName", "USER_SESSION"); return filterRegistrationBean; } ---------------------------------------------------- ![图片说明](https://img-ask.csdn.net/upload/201807/21/1532162386_693657.png) 从库在数据源是监控了,但是sql没有 ![图片说明](https://img-ask.csdn.net/upload/201807/21/1532162432_671619.png)

Druid连接SqlServer报错,为啥都连接了sqlserver还执行SHOW TABLES?

SpringBoot + Guns脚手架改成使用sqlserver,在最后时刻报错了,原因是sqlserver执行了mysql的语句SHOW TABLES,druid内部会执行这一句吗?mysql转sqlserver该如何实现? ``` 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/add]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.add(com.jsnjfz.manage.modular.system.transfer.UserDto,org.springframework.validation.BindingResult) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/delete]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.delete(java.lang.Integer) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/list]}" onto public java.lang.Object com.jsnjfz.manage.modular.system.controller.UserMgrController.list(java.lang.String,java.lang.String,java.lang.String,java.lang.Integer) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/reset]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.reset(java.lang.Integer) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/user_info]}" onto public java.lang.String com.jsnjfz.manage.modular.system.controller.UserMgrController.userInfo(org.springframework.ui.Model) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/freeze]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.freeze(java.lang.Integer) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/view/{userId}]}" onto public com.jsnjfz.manage.modular.system.model.User com.jsnjfz.manage.modular.system.controller.UserMgrController.view(java.lang.Integer) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/setRole]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.setRole(java.lang.Integer,java.lang.String) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/user_chpwd]}" onto public java.lang.String com.jsnjfz.manage.modular.system.controller.UserMgrController.chPwd() 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/changePwd]}" onto public java.lang.Object com.jsnjfz.manage.modular.system.controller.UserMgrController.changePwd(java.lang.String,java.lang.String,java.lang.String) 2019-12-09 15:04:10.196 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/edit]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.edit(com.jsnjfz.manage.modular.system.transfer.UserDto,org.springframework.validation.BindingResult) throws javax.naming.NoPermissionException 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/role_assign/{userId}]}" onto public java.lang.String com.jsnjfz.manage.modular.system.controller.UserMgrController.roleAssign(java.lang.Integer,org.springframework.ui.Model) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/user_add]}" onto public java.lang.String com.jsnjfz.manage.modular.system.controller.UserMgrController.addView() 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/user_edit/{userId}]}" onto public java.lang.String com.jsnjfz.manage.modular.system.controller.UserMgrController.userEdit(java.lang.Integer,org.springframework.ui.Model) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/upload],methods=[POST]}" onto public java.lang.String com.jsnjfz.manage.modular.system.controller.UserMgrController.upload(org.springframework.web.multipart.MultipartFile) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/mgr/unfreeze]}" onto public cn.stylefeng.roses.core.reqres.response.ResponseData com.jsnjfz.manage.modular.system.controller.UserMgrController.unfreeze(java.lang.Integer) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/code/generate],methods=[POST]}" onto public java.lang.Object cn.stylefeng.guns.generator.modular.controller.CodeController.generate(cn.stylefeng.guns.generator.executor.model.GenQo) 2019-12-09 15:04:10.212 INFO 3788 --- [ restartedMain] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/code]}" onto public java.lang.String cn.stylefeng.guns.generator.modular.controller.CodeController.blackboard(org.springframework.ui.Model) 2019-12-09 15:04:10.353 INFO 3788 --- [ restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2019-12-09 15:04:10.353 INFO 3788 --- [ restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/static/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2019-12-09 15:04:10.353 INFO 3788 --- [ restartedMain] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/swagger-ui.html] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2019-12-09 15:04:10.415 INFO 3788 --- [ restartedMain] .m.m.a.ExceptionHandlerExceptionResolver : Detected @ExceptionHandler methods in globalExceptionHandler 2019-12-09 15:04:10.415 INFO 3788 --- [ restartedMain] .m.m.a.ExceptionHandlerExceptionResolver : Detected @ExceptionHandler methods in defaultControllerExceptionHandler 2019-12-09 15:04:11.071 INFO 3788 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729 2019-12-09 15:04:11.114 INFO 3788 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup 2019-12-09 15:04:11.161 INFO 3788 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8001 (http) with context path '' 2019-12-09 15:04:11.161 INFO 3788 --- [ restartedMain] c.jsnjfz.manage.WebstackGunsApplication : Started WebstackGunsApplication in 71.82 seconds (JVM running for 72.932) JDBC Connection [com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl@7a595887] will not be managed by Spring 2019-12-09 15:08:40.389 ERROR 3788 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed com.baomidou.mybatisplus.exceptions.MybatisPlusException: java.lang.reflect.InvocationTargetException at com.baomidou.mybatisplus.MybatisSqlSessionTemplate$SqlSessionInterceptor.invoke(MybatisSqlSessionTemplate.java:405) at com.sun.proxy.$Proxy86.selectList(Unknown Source) at com.baomidou.mybatisplus.MybatisSqlSessionTemplate.selectList(MybatisSqlSessionTemplate.java:195) at com.baomidou.mybatisplus.mapper.SqlRunner.selectObjs(SqlRunner.java:140) at cn.stylefeng.roses.core.db.DbInitializer.initTable(DbInitializer.java:97) at cn.stylefeng.roses.core.db.DbInitializer.dbInit(DbInitializer.java:71) at cn.stylefeng.roses.core.db.listener.InitTableListener.onApplicationEvent(InitTableListener.java:42) at cn.stylefeng.roses.core.db.listener.InitTableListener.onApplicationEvent(InitTableListener.java:32) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:400) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:354) at org.springframework.boot.context.event.EventPublishingRunListener.running(EventPublishingRunListener.java:103) at org.springframework.boot.SpringApplicationRunListeners.running(SpringApplicationRunListeners.java:78) at org.springframework.boot.SpringApplication.run(SpringApplication.java:343) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) at com.jsnjfz.manage.WebstackGunsApplication.main(WebstackGunsApplication.java:36) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) Caused by: java.lang.reflect.InvocationTargetException: null at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.baomidou.mybatisplus.MybatisSqlSessionTemplate$SqlSessionInterceptor.invoke(MybatisSqlSessionTemplate.java:401) ... 23 common frames omitted Caused by: org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.sql.SQLException: sql injection violation, syntax error: syntax error, error in :'SHOW TABLES', expect IDENTIFIER, actual IDENTIFIER pos 4, line 1, column 1, token IDENTIFIER SHOW : SHOW TABLES ### The error may involve com.baomidou.mybatisplus.mapper.SqlRunner.SelectObjs ### The error occurred while executing a query ### SQL: SHOW TABLES ### Cause: java.sql.SQLException: sql injection violation, syntax error: syntax error, error in :'SHOW TABLES', expect IDENTIFIER, actual IDENTIFIER pos 4, line 1, column 1, token IDENTIFIER SHOW : SHOW TABLES at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) ... 28 common frames omitted Caused by: java.sql.SQLException: sql injection violation, syntax error: syntax error, error in :'SHOW TABLES', expect IDENTIFIER, actual IDENTIFIER pos 4, line 1, column 1, token IDENTIFIER SHOW : SHOW TABLES at com.alibaba.druid.wall.WallFilter.checkInternal(WallFilter.java:798) at com.alibaba.druid.wall.WallFilter.connection_prepareStatement(WallFilter.java:251) at com.alibaba.druid.filter.FilterChainImpl.connection_prepareStatement(FilterChainImpl.java:568) at com.alibaba.druid.proxy.jdbc.ConnectionProxyImpl.prepareStatement(ConnectionProxyImpl.java:342) at com.alibaba.druid.pool.DruidPooledConnection.prepareStatement(DruidPooledConnection.java:349) at org.apache.ibatis.executor.statement.PreparedStatementHandler.instantiateStatement(PreparedStatementHandler.java:87) at org.apache.ibatis.executor.statement.BaseStatementHandler.prepare(BaseStatementHandler.java:88) at org.apache.ibatis.executor.statement.RoutingStatementHandler.prepare(RoutingStatementHandler.java:59) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.ibatis.plugin.Invocation.proceed(Invocation.java:49) at com.baomidou.mybatisplus.plugins.PaginationInterceptor.intercept(PaginationInterceptor.java:112) at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:61) at com.sun.proxy.$Proxy114.prepare(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.ibatis.plugin.Invocation.proceed(Invocation.java:49) at cn.stylefeng.roses.core.datascope.DataScopeInterceptor.intercept(DataScopeInterceptor.java:46) at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:61) at com.sun.proxy.$Proxy114.prepare(Unknown Source) at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:85) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:326) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63) at com.sun.proxy.$Proxy113.query(Unknown Source) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) ... 29 common frames omitted Caused by: com.alibaba.druid.sql.parser.ParserException: syntax error, error in :'SHOW TABLES', expect IDENTIFIER, actual IDENTIFIER pos 4, line 1, column 1, token IDENTIFIER SHOW at com.alibaba.druid.sql.parser.SQLParser.printError(SQLParser.java:284) at com.alibaba.druid.sql.parser.SQLStatementParser.parseStatementList(SQLStatementParser.java:426) at com.alibaba.druid.sql.parser.SQLStatementParser.parseStatementList(SQLStatementParser.java:83) at com.alibaba.druid.wall.WallProvider.checkInternal(WallProvider.java:624) at com.alibaba.druid.wall.WallProvider.check(WallProvider.java:578) at com.alibaba.druid.wall.WallFilter.checkInternal(WallFilter.java:785) ... 65 common frames omitted 2019-12-09 15:08:40.394 INFO 3788 --- [ restartedMain] ConfigServletWebServerApplicationContext : Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@e8fcbe7: startup date [Mon Dec 09 15:02:59 CST 2019]; root of context hierarchy 2019-12-09 15:08:40.395 INFO 3788 --- [ restartedMain] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown 2019-12-09 15:08:40.395 INFO 3788 --- [ restartedMain] com.alibaba.druid.pool.DruidDataSource : {dataSource-1} closed 2019-12-09 15:08:40.395 INFO 3788 --- [ restartedMain] o.s.c.ehcache.EhCacheManagerFactoryBean : Shutting down EhCache CacheManager ```

springboot+druid配置无效

使用druid-spring-boot-starter 提供的配置方法,运行之后应用不到druid连接处,而是默认的HikariPool pom.xml ``` <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.druid</groupId> <artifactId>druid</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>druid</name> <description>测试</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.0.3.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.1.10</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.10</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> ``` 运行的类 ``` package com.druid; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication(scanBasePackages="com.alibaba.druid.spring.boot") public class DruidApplication { public static void main(String[] args) { SpringApplication.run(DruidApplication.class, args); } } ```

Spring boot 引用alibaba.druid的dataSource启动报错

![图片说明](https://img-ask.csdn.net/upload/201803/27/1522149996_227695.png) 报错信息如图所示,麻烦哪位大拿解释下,怎么还会调用tomcat呐 如果您看不到图片的话,报错信息如下: Failed to execute goal org.springframework.boot: spring-boot-maven-plugin:1.5.10.RELEASE:run (default-cli) on project SpringBootDemo: An exception occurred while running. null: InvocationTargetException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).

springboot 使用druid往后台传值SQL报错,是在是头疼不知道怎么办了,高C币,解决必采纳

> 首先说我的场景:我是在前台用layui框架的时间选择器,取到两个时间,开始时间和结束时间,在后台我把取到的两个日期2019-03-29 - 2019-03-31截取了出来,取成了两个字符分别是:2019-03-29,2019-03-31,然后转换成了Date,下面的代码图中能看到我转换之后的值是什么样子!然后报了一个莫名其妙的错误,很难受!是在是不知道哪里错了,求大神指教,看下图; #### 这是后台接收到值转换并存入数据库的实现 ![图片说明](https://img-ask.csdn.net/upload/201903/31/1553980314_683850.png) #### 下面是mapper.xml中语句 ``` <!-- 模糊查询--> <select id="fuzzySelectLogs" resultType="OaLog"> SELECT * FROM oa_log WHERE <if test="name != null"> name LIKE CONCAT('%',#{name},'%') </if> <if test="startDate != null and endDate != null">    AND createdate <![CDATA[>=]]> #{startDate} AND createdate <![CDATA[<]]> #{endDate} </if> ORDER BY createdate DESC <if test="limit!=null and page!=null"> LIMIT #{limit} OFFSET #{page} </if> </select> <!-- 分页 --> <select id="fuzzySelectLogsCount" resultType="int"> SELECT COUNT(*)FROM oa_log WHERE <if test="name != null"> name LIKE CONCAT('%',#{name},'%') </if> <if test="startDate != null"> AND createdate <![CDATA[>=]]> #{startDate} AND createdate <![CDATA[<=]]> #{endDate} </if> </select> ``` #### 然后下面是报错! ``` 2019-03-31 05:04:56.652 DEBUG 1675 --- [nio-8081-exec-3] c.h.oasys.dao.IOaLogDao.fuzzySelectLogs : ==> Parameters: (String), 2019-03-29 00:00:00.0(Timestamp), 2019-03-31 00:00:00.0(Timestamp), 10(Integer), 0(Integer) 2019-03-31 05:04:56,687 ERROR Statement:152 - {conn-10005, pstmt-20013} execute error. SELECT * FROM oa_log WHERE name LIKE CONCAT('%',?,'%')    AND createdate >= ? AND createdate < ? ORDER BY createdate DESC LIMIT ? OFFSET ? com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '   AND createdate >= '2019-03-29 00:00:00' AND createdate < '2019-03-31 00' at line 6 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.Util.getInstance(Util.java:408) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912) at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2486) at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858) at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3409) at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) at com.alibaba.druid.wall.WallFilter.preparedStatement_execute(WallFilter.java:619) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.execute(PreparedStatementProxyImpl.java:167) at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:498) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59) at com.sun.proxy.$Proxy105.execute(Unknown Source) at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63) at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325) at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434) at com.sun.proxy.$Proxy70.selectList(Unknown Source) at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231) at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:128) at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) at com.sun.proxy.$Proxy77.fuzzySelectLogs(Unknown Source) at com.hxxzt.oasys.service.impl.OaLogServiceImpl.fuzzySelectLogs(OaLogServiceImpl.java:43) at com.hxxzt.oasys.controller.APIController.fuzzyLogs(APIController.java:303) at com.hxxzt.oasys.controller.APIController$$FastClassBySpringCGLIB$$2f9e5a50.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) at com.hxxzt.oasys.controller.APIController$$EnhancerBySpringCGLIB$$ebb404c6.fuzzyLogs(<generated>) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) 2019-03-31 05:04:56.697 INFO 1675 --- [nio-8081-exec-3] o.s.b.f.xml.XmlBeanDefinitionReader : Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml] 2019-03-31 05:04:56.725 INFO 1675 --- [nio-8081-exec-3] o.s.jdbc.support.SQLErrorCodesFactory : SQLErrorCodes loaded: [DB2, Derby, H2, HDB, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL, Sybase] 2019-03-31 05:04:56.740 ERROR 1675 --- [nio-8081-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: ### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '   AND createdate >= '2019-03-29 00:00:00' AND createdate < '2019-03-31 00' at line 6 ### The error may exist in file [/Users/planet/IdeaProjects/oa_system/target/classes/mapper/OaLogMapper.xml] ### The error may involve defaultParameterMap ### The error occurred while setting parameters ### SQL: SELECT * FROM oa_log WHERE name LIKE CONCAT('%',?,'%')    AND createdate >= ? AND createdate < ? ORDER BY createdate DESC LIMIT ? OFFSET ? ### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '   AND createdate >= '2019-03-29 00:00:00' AND createdate < '2019-03-31 00' at line 6 ; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '   AND createdate >= '2019-03-29 00:00:00' AND createdate < '2019-03-31 00' at line 6] with root cause com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '   AND createdate >= '2019-03-29 00:00:00' AND createdate < '2019-03-31 00' at line 6 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_172] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_172] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_172] at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_172] at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.Util.getInstance(Util.java:408) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:944) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3976) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3912) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2530) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2683) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2486) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1197) ~[mysql-connector-java-5.1.46.jar:5.1.46] at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3409) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.wall.WallFilter.preparedStatement_execute(WallFilter.java:619) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.filter.FilterEventAdapter.preparedStatement_execute(FilterEventAdapter.java:440) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.filter.FilterChainImpl.preparedStatement_execute(FilterChainImpl.java:3407) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.proxy.jdbc.PreparedStatementProxyImpl.execute(PreparedStatementProxyImpl.java:167) ~[druid-1.1.10.jar:1.1.10] at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:498) ~[druid-1.1.10.jar:1.1.10] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_172] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_172] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_172] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_172] at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59) ~[mybatis-3.4.0.jar:3.4.0] at com.sun.proxy.$Proxy105.execute(Unknown Source) ~[na:na] at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:63) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:79) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:63) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:325) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) ~[mybatis-3.4.0.jar:3.4.0] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_172] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_172] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_172] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_172] at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434) ~[mybatis-spring-1.3.0.jar:1.3.0] at com.sun.proxy.$Proxy70.selectList(Unknown Source) ~[na:na] at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:128) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:53) ~[mybatis-3.4.0.jar:3.4.0] at com.sun.proxy.$Proxy77.fuzzySelectLogs(Unknown Source) ~[na:na] at com.hxxzt.oasys.service.impl.OaLogServiceImpl.fuzzySelectLogs(OaLogServiceImpl.java:43) ~[classes/:na] at com.hxxzt.oasys.controller.APIController.fuzzyLogs(APIController.java:303) ~[classes/:na] at com.hxxzt.oasys.controller.APIController$$FastClassBySpringCGLIB$$2f9e5a50.invoke(<generated>) ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:746) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.6.RELEASE.jar:5.0.6.RELEASE] at com.hxxzt.oasys.controller.APIController$$EnhancerBySpringCGLIB$$ebb404c6.fuzzyLogs(<generated>) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_172] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_172] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_172] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_172] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:209) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:877) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:783) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:991) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:925) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:974) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:866) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:851) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) ~[shiro-web-1.4.0.jar:1.4.0] at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) ~[shiro-web-1.4.0.jar:1.4.0] at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) ~[shiro-core-1.4.0.jar:1.4.0] at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) ~[shiro-core-1.4.0.jar:1.4.0] at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387) ~[shiro-core-1.4.0.jar:1.4.0] at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) ~[shiro-web-1.4.0.jar:1.4.0] at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) ~[shiro-web-1.4.0.jar:1.4.0] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) ~[druid-1.1.10.jar:1.1.10] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:109) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:496) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:803) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:790) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1468) [tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_172] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_172] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.31.jar:8.5.31] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_172] ``` ### 这种报错实在是太诡异了!完全不知其所以然!求大神告知,重谢!!!!!!!!!!!!

spring中druid的使用时报的一种错误

我在spring中使用druid,查询的时候报了一个: ``` com.alibaba.druid.sql.parser.ParserException: Error : EXPLAIN ``` 这样的错误,在网上搜,没搜到,虽然不影响使用吧,但是报错感觉不自在,有经验的前辈可以教教我,谢谢!

springboot 2.0.5 +mysql5.7 +druid ,本地开发测试正常,放到生产就报错

``` ``` ** ``` Creating a new SqlSession SqlSession [org.apache.ibatis.session.defaults.DefaultSqlSession@17b8c0a6] was not registered for synchronization because synchronization is not active 2019-05-07 15:32:54.236 [http-nio-8081-exec-2] INFO com.alibaba.druid.pool.DruidDataSource -{dataSource-1} inited DruidDataSource2019-05-07 15:35:01.620 [Druid-ConnectionPool-Create-906728024] ERROR com.alibaba.druid.pool.DruidDataSource -create connection SQLException, url: jdbc:mysql://169.251.179.213:3306/bbbc?useSSL=true&characterEncoding=UTF-8, errorCode 0, state 08S01 com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835) at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455) at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240) at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1510) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1575) at com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2450) Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91) at com.mysql.cj.NativeSession.connect(NativeSession.java:152) at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:955) at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825) ... 6 common frames omitted Caused by: java.net.ConnectException: Connection timed out (Connection timed out) at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155) ```at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65) ... 9 common frames omitted** ``` ```

SpringBoot使用druid连接池,隔一段时间后,再次访问页面,数据加载时间特别长,有时候会连接超时

https://biwen.csdn.net/question/1229 已经再这里描述问题了。麻烦解答一下,谢谢

spring boot+druid连接oracle时总是报Connection reset错误

最近公司要把数据库从mysql转到oracl,于是在阿里云服务器上搭建了一oracle数据库。项目使用spring boot框架,数据库使用阿里的druid连接,参数如下: ``` url: jdbc:oracle:thin:@ip:1521/orcl username: test password: 123456 driver-class-name: oracle.jdbc.driver.OracleDriver initial-size: 1 max-active: 20 min-idle: 2 max-wait: 60000 pool-prepared-statements: true max-pool-prepared-statement-per-connection-size: 100 validation-query: SELECT 1 FROM dual validation-query-timeout: 5 test-on-borrow: true test-on-return: false test-while-idle: true time-between-eviction-runs-millis: 60000 min-evictable-idle-time-millis: 300000 connection-properties: druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000 use-global-data-source-stat: true filters: stat,wall,log4j multi-statement-allow: true ``` 问题有两个: 1.开发时连接该数据库,启动时没问题,但是过一会儿就会出现断开重连的现象 2.把项目放在测试机(与oracle同台服务器)上启动时,每次启动第一次连接都会超时。 连接日志太长放在下面评论了

springboot2.0加入druid后使用的还是Hikari

配置 ``` spring: datasource: type: com.alibaba.druid.pool.DruidDataSource master: jdbcUrl: jdbc:mysql://127.0.0.1:3306/spring_boot_learning?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf-8 username: root password: root3306 driver-class-name: com.mysql.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource # 初始化大小,最小,最大 initialSize: 5 minIdle: 5 maxActive: 20 # 配置获取连接等待超时的时间 maxWait: 60000 # 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 timeBetweenEvictionRunsMillis: 60000 # 配置一个连接在池中最小生存的时间,单位是毫秒 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false # 打开PSCache,并且指定每个连接上PSCache的大小 poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 20 # 配置监控统计拦截的filters,去掉后监控界面sql无法统计,'wall'用于防火墙 filters: stat,wall,log4j # 合并多个DruidDataSource的监控数据 #useGlobalDataSourceStat: true slave: jdbcUrl: jdbc:mysql://127.0.0.1:3306/spring_boot_learning_one?zeroDateTimeBehavior=convertToNull&useUnicode=true&characterEncoding=utf-8 username: root password: root3306 driver-class-name: com.mysql.jdbc.Driver type: com.alibaba.druid.pool.DruidDataSource # 初始化大小,最小,最大 initialSize: 5 minIdle: 5 maxActive: 20 # 配置获取连接等待超时的时间 maxWait: 60000 # 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 timeBetweenEvictionRunsMillis: 60000 # 配置一个连接在池中最小生存的时间,单位是毫秒 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false # 打开PSCache,并且指定每个连接上PSCache的大小 poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 20 # 配置监控统计拦截的filters,去掉后监控界面sql无法统计,'wall'用于防火墙 filters: stat,wall,log4j # 合并多个DruidDataSource的监控数据 #useGlobalDataSourceStat: true ``` 主数据源配置 ``` @Configuration @MapperScan(basePackages = "indi.xulala.dao.master", sqlSessionTemplateRef = "masterSqlSessionTemplate") public class MasterDataSourceConfig { @Bean(name = "masterDataSource") @ConfigurationProperties(prefix = "spring.datasource.master") @Primary public DataSource setDataSource() { return DataSourceBuilder.create().build(); } @Bean(name = "masterTransactionManager") @Primary public DataSourceTransactionManager setTransactionManager(@Qualifier("masterDataSource") DataSource dataSource) { return new DataSourceTransactionManager(dataSource); } @Bean(name = "masterSqlSessionFactory") @Primary public SqlSessionFactory setSqlSessionFactory(@Qualifier("masterDataSource") DataSource dataSource) throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml")); return bean.getObject(); } @Bean(name = "masterSqlSessionTemplate") @Primary public SqlSessionTemplate setSqlSessionTemplate(@Qualifier("masterSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception { return new SqlSessionTemplate(sqlSessionFactory); } } ``` 从数据源配置 ``` @Configuration @MapperScan(basePackages = "indi.xulala.dao.slave", sqlSessionTemplateRef = "slaveSqlSessionTemplate") public class SlaveDataSourceConfig { @Bean(name = "slaveDataSource") @ConfigurationProperties(prefix = "spring.datasource.slave") @Primary public DataSource setDataSource() { return DataSourceBuilder.create().build(); } @Bean(name = "slaveTransactionManager") @Primary public DataSourceTransactionManager setTransactionManager(@Qualifier("slaveDataSource") DataSource dataSource) { return new DataSourceTransactionManager(dataSource); } @Bean(name = "slaveSqlSessionFactory") @Primary public SqlSessionFactory setSqlSessionFactory(@Qualifier("slaveDataSource") DataSource dataSource) throws Exception { SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml")); return bean.getObject(); } @Bean(name = "slaveSqlSessionTemplate") @Primary public SqlSessionTemplate setSqlSessionTemplate(@Qualifier("slaveSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception { return new SqlSessionTemplate(sqlSessionFactory); } } ``` application ``` @SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, DataSourceTransactionManagerAutoConfiguration.class, HibernateJpaAutoConfiguration.class}) @MapperScan(basePackages = {"indi.xulala.dao.master","indi.xulala.dao.slave"}) public class SpringBootLearningApplication { public static void main(String[] args) { SpringApplication.run(SpringBootLearningApplication.class, args); } } ``` 启动日志 ``` 07:48:27.764 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [afterSingletonsInstantiated,434] - Registering beans for JMX exposure on startup 07:48:27.765 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [autodetect,896] - Bean with name 'masterDataSource' has been autodetected for JMX exposure 07:48:27.765 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [autodetect,896] - Bean with name 'slaveDataSource' has been autodetected for JMX exposure 07:48:27.765 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [autodetect,896] - Bean with name 'statFilter' has been autodetected for JMX exposure 07:48:27.772 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [registerBeanInstance,669] - Located MBean 'masterDataSource': registering with JMX server as MBean [com.zaxxer.hikari:name=masterDataSource,type=HikariDataSource] 07:48:27.773 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [registerBeanInstance,669] - Located MBean 'slaveDataSource': registering with JMX server as MBean [com.zaxxer.hikari:name=slaveDataSource,type=HikariDataSource] 07:48:27.774 [restartedMain] INFO o.s.j.e.a.AnnotationMBeanExporter - [registerBeanInstance,669] - Located MBean 'statFilter': registering with JMX server as MBean [com.alibaba.druid.filter.stat:name=statFilter,type=StatFilter] ``` 测试日志 ``` 07:49:20.159 [main] INFO com.zaxxer.hikari.HikariDataSource - [getConnection,110] - HikariPool-1 - Starting... 07:49:20.694 [main] INFO com.zaxxer.hikari.HikariDataSource - [getConnection,123] - HikariPool-1 - Start completed. 07:49:20.742 [main] INFO com.zaxxer.hikari.HikariDataSource - [getConnection,110] - HikariPool-2 - Starting... 07:49:20.771 [main] INFO com.zaxxer.hikari.HikariDataSource - [getConnection,123] - HikariPool-2 - Start completed. 07:49:20.813 [Thread-3] INFO o.s.w.c.s.GenericWebApplicationContext - [doClose,989] - Closing org.springframework.web.context.support.GenericWebApplicationContext@38831718: startup date [Sat Mar 24 07:49:11 CST 2018]; root of context hierarchy 07:49:20.817 [Thread-3] INFO com.zaxxer.hikari.HikariDataSource - [close,381] - HikariPool-2 - Shutdown initiated... 07:49:20.833 [Thread-3] INFO com.zaxxer.hikari.HikariDataSource - [close,383] - HikariPool-2 - Shutdown completed. 07:49:20.834 [Thread-3] INFO com.zaxxer.hikari.HikariDataSource - [close,381] - HikariPool-1 - Shutdown initiated... 07:49:20.845 [Thread-3] INFO com.zaxxer.hikari.HikariDataSource - [close,383] - HikariPool-1 - Shutdown completed. ``` druid-spring-boot-starter版本1.1.9

springBoot整合mybatis时的错,求助!

项目结构![图片说明](https://img-ask.csdn.net/upload/201903/15/1552617152_885756.png) yml配置 ``` spring: datasource: type: com.alibaba.druid.pool.DruidDataSource driver-class-name: com.mysql.jdbc.Driver url: jdbc:mysql://localhost:3306/zmz username: root password: root mybatis: typeAliasesPackage: Beans mapperLocations: classpath:mappers/*.xml logging: level: mapper: debug ``` 报错信息 ``` java.lang.IllegalStateException: Could not evaluate condition on com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure#dataSource due to org/springframework/boot/web/servlet/ServletRegistrationBean not found. Make sure your own configuration does not rely on that class. This can also happen if you are @ComponentScanning a springframework package (e.g. if you put a @ComponentScan in the default package by mistake) at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:55) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.context.annotation.ConditionEvaluator.shouldSkip(ConditionEvaluator.java:102) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod(ConfigurationClassBeanDefinitionReader.java:178) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass(ConfigurationClassBeanDefinitionReader.java:140) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions(ConfigurationClassBeanDefinitionReader.java:116) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:333) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:243) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:273) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:98) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:678) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:520) ~[spring-context-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.3.RELEASE.jar:1.3.3.RELEASE] at start.Start.main(Start.java:12) [classes/:na] Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/web/servlet/ServletRegistrationBean at java.lang.Class.getDeclaredMethods0(Native Method) ~[na:1.8.0_144] at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) ~[na:1.8.0_144] at java.lang.Class.getDeclaredMethods(Class.java:1975) ~[na:1.8.0_144] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:609) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:521) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:507) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:567) ~[spring-core-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:683) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:627) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:597) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1445) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:975) ~[spring-beans-4.2.5.RELEASE.jar:4.2.5.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry$OptimizedBeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:289) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry$OptimizedBeanTypeRegistry.addBeanType(BeanTypeRegistry.java:278) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry$OptimizedBeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:259) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:182) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:171) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:139) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:113) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ~[spring-boot-autoconfigure-1.3.3.RELEASE.jar:1.3.3.RELEASE] ... 17 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.boot.web.servlet.ServletRegistrationBean at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_144] at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_144] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) ~[na:1.8.0_144] at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_144] ... 37 common frames omitted 2019-03-15 10:27:17.852 INFO 3600 --- [ main] .b.l.ClasspathLoggingApplicationListener : Application failed to start with classpath: [file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/resources.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/rt.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/jsse.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/jce.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/charsets.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/jfr.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/access-bridge-64.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/cldrdata.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/dnsns.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/jaccess.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/jfxrt.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/localedata.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/nashorn.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/sunec.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/sunjce_provider.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/sunmscapi.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/sunpkcs11.jar, file:/C:/Program%20Files/Java/jdk1.8.0_144/jre/lib/ext/zipfs.jar, file:/D:/software/workspace/spb/target/classes/, file:/D:/software/repo/mysql/mysql-connector-java/5.1.38/mysql-connector-java-5.1.38.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-starter-web/1.3.3.RELEASE/spring-boot-starter-web-1.3.3.RELEASE.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-starter/1.3.3.RELEASE/spring-boot-starter-1.3.3.RELEASE.jar, file:/D:/software/repo/org/springframework/boot/spring-boot/1.3.3.RELEASE/spring-boot-1.3.3.RELEASE.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-starter-logging/1.3.3.RELEASE/spring-boot-starter-logging-1.3.3.RELEASE.jar, file:/D:/software/repo/ch/qos/logback/logback-classic/1.1.5/logback-classic-1.1.5.jar, file:/D:/software/repo/ch/qos/logback/logback-core/1.1.5/logback-core-1.1.5.jar, file:/D:/software/repo/org/slf4j/slf4j-api/1.7.16/slf4j-api-1.7.16.jar, file:/D:/software/repo/org/slf4j/jcl-over-slf4j/1.7.16/jcl-over-slf4j-1.7.16.jar, file:/D:/software/repo/org/slf4j/jul-to-slf4j/1.7.16/jul-to-slf4j-1.7.16.jar, file:/D:/software/repo/org/slf4j/log4j-over-slf4j/1.7.16/log4j-over-slf4j-1.7.16.jar, file:/D:/software/repo/org/springframework/spring-core/4.2.5.RELEASE/spring-core-4.2.5.RELEASE.jar, file:/D:/software/repo/org/yaml/snakeyaml/1.16/snakeyaml-1.16.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-starter-tomcat/1.3.3.RELEASE/spring-boot-starter-tomcat-1.3.3.RELEASE.jar, file:/D:/software/repo/org/apache/tomcat/embed/tomcat-embed-core/8.0.32/tomcat-embed-core-8.0.32.jar, file:/D:/software/repo/org/apache/tomcat/embed/tomcat-embed-el/8.0.32/tomcat-embed-el-8.0.32.jar, file:/D:/software/repo/org/apache/tomcat/embed/tomcat-embed-logging-juli/8.0.32/tomcat-embed-logging-juli-8.0.32.jar, file:/D:/software/repo/org/apache/tomcat/embed/tomcat-embed-websocket/8.0.32/tomcat-embed-websocket-8.0.32.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-starter-validation/1.3.3.RELEASE/spring-boot-starter-validation-1.3.3.RELEASE.jar, file:/D:/software/repo/org/hibernate/hibernate-validator/5.2.4.Final/hibernate-validator-5.2.4.Final.jar, file:/D:/software/repo/javax/validation/validation-api/1.1.0.Final/validation-api-1.1.0.Final.jar, file:/D:/software/repo/org/jboss/logging/jboss-logging/3.3.0.Final/jboss-logging-3.3.0.Final.jar, file:/D:/software/repo/com/fasterxml/classmate/1.1.0/classmate-1.1.0.jar, file:/D:/software/repo/com/fasterxml/jackson/core/jackson-databind/2.6.5/jackson-databind-2.6.5.jar, file:/D:/software/repo/com/fasterxml/jackson/core/jackson-annotations/2.6.5/jackson-annotations-2.6.5.jar, file:/D:/software/repo/com/fasterxml/jackson/core/jackson-core/2.6.5/jackson-core-2.6.5.jar, file:/D:/software/repo/org/springframework/spring-web/4.2.5.RELEASE/spring-web-4.2.5.RELEASE.jar, file:/D:/software/repo/org/springframework/spring-aop/4.2.5.RELEASE/spring-aop-4.2.5.RELEASE.jar, file:/D:/software/repo/aopalliance/aopalliance/1.0/aopalliance-1.0.jar, file:/D:/software/repo/org/springframework/spring-beans/4.2.5.RELEASE/spring-beans-4.2.5.RELEASE.jar, file:/D:/software/repo/org/springframework/spring-context/4.2.5.RELEASE/spring-context-4.2.5.RELEASE.jar, file:/D:/software/repo/org/springframework/spring-webmvc/4.2.5.RELEASE/spring-webmvc-4.2.5.RELEASE.jar, file:/D:/software/repo/org/springframework/spring-expression/4.2.5.RELEASE/spring-expression-4.2.5.RELEASE.jar, file:/D:/software/repo/org/mybatis/spring/boot/mybatis-spring-boot-starter/1.3.0/mybatis-spring-boot-starter-1.3.0.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-starter-jdbc/1.3.3.RELEASE/spring-boot-starter-jdbc-1.3.3.RELEASE.jar, file:/D:/software/repo/org/apache/tomcat/tomcat-jdbc/8.0.32/tomcat-jdbc-8.0.32.jar, file:/D:/software/repo/org/apache/tomcat/tomcat-juli/8.0.32/tomcat-juli-8.0.32.jar, file:/D:/software/repo/org/springframework/spring-jdbc/4.2.5.RELEASE/spring-jdbc-4.2.5.RELEASE.jar, file:/D:/software/repo/org/springframework/spring-tx/4.2.5.RELEASE/spring-tx-4.2.5.RELEASE.jar, file:/D:/software/repo/org/mybatis/spring/boot/mybatis-spring-boot-autoconfigure/1.3.0/mybatis-spring-boot-autoconfigure-1.3.0.jar, file:/D:/software/repo/org/mybatis/mybatis/3.4.4/mybatis-3.4.4.jar, file:/D:/software/repo/org/mybatis/mybatis-spring/1.3.1/mybatis-spring-1.3.1.jar, file:/D:/software/repo/com/alibaba/druid-spring-boot-starter/1.1.0/druid-spring-boot-starter-1.1.0.jar, file:/D:/software/repo/com/alibaba/druid/1.1.0/druid-1.1.0.jar, file:/D:/software/repo/org/springframework/boot/spring-boot-autoconfigure/1.3.3.RELEASE/spring-boot-autoconfigure-1.3.3.RELEASE.jar] ```

今天试着搭建ssm框架遇到一个问题,用的druid连接池,这个druid报错了

com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker - Cannot resolve com.mysq.jdbc.Connection.ping method. Will use 'SELECT 1' instead.

springboot 注入SessionFactory报错。

按网上的说明https://www.cnblogs.com/soul-wonder/p/9052471.html 都试过了,全部都不行,不知道是什么原因。各位求助。 上面网页的第一种方式报错日志如下; ``` org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'TestApp': Unsatisfied dependency expressed through field 'entityManagerFactory'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sessionFactory' defined in class path resource [com/test/config/bean/SystemBean.class]: Unsatisfied dependency expressed through method 'sessionFactory' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value=entityManagerFactory)} at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:584) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:370) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1336) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:548) ~[spring-context-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:142) ~[spring-boot-2.0.7.RELEASE.jar:2.0.7.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.0.7.RELEASE.jar:2.0.7.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.7.RELEASE.jar:2.0.7.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.0.7.RELEASE.jar:2.0.7.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) [spring-boot-2.0.7.RELEASE.jar:2.0.7.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) [spring-boot-2.0.7.RELEASE.jar:2.0.7.RELEASE] at com.TestApp.main(TestApp.java:35) [classes/:na] Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sessionFactory' defined in class path resource [com/test/config/bean/SystemBean.class]: Unsatisfied dependency expressed through method 'sessionFactory' parameter 0; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value=entityManagerFactory)} at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:733) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:475) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1246) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1135) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:581) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] ... 19 common frames omitted Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.persistence.EntityManagerFactory' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Qualifier(value=entityManagerFactory)} at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1506) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:819) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:725) ~[spring-beans-5.0.11.RELEASE.jar:5.0.11.RELEASE] ... 32 common frames omitted ```

com.alibaba.druid.pool.DruidDataSource 报错

使用springboot2.0.1,数据源使用alibaba的druid,数据库是oracle。启动程序启动报如下错误。同样的程序打包后在其他人电脑可以正常运行,在我电脑上运行就报如下错误。但是在我电脑上用plsql也可以正常连接数据库 ,求大神指点迷津 2018-06-06 10:45:21.242 ERROR 10508 --- [nfoReplicator-0] com.alibaba.druid.pool.DruidDataSource : init datasource error, url: jdbc:oracle:thin:@172.20.26.21:1521:dbtest java.sql.SQLRecoverableException: IO 错误: Got minus one from a read call, connect lapse 3 ms., Authentication lapse 0 ms. at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:794) at oracle.jdbc.driver.PhysicalConnection.connect(PhysicalConnection.java:688) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:39) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:691) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:156) at com.alibaba.druid.filter.stat.StatFilter.connection_connect(StatFilter.java:218) at com.alibaba.druid.filter.FilterChainImpl.connection_connect(FilterChainImpl.java:150) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1560) at com.alibaba.druid.pool.DruidAbstractDataSource.createPhysicalConnection(DruidAbstractDataSource.java:1623) at com.alibaba.druid.pool.DruidDataSource.init(DruidDataSource.java:861) at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1229) at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:1225) at com.alibaba.druid.pool.DruidDataSource.getConnection(DruidDataSource.java:90) at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:324) at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.getProduct(DataSourceHealthIndicator.java:122) at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doDataSourceHealthCheck(DataSourceHealthIndicator.java:109) at org.springframework.boot.actuate.jdbc.DataSourceHealthIndicator.doHealthCheck(DataSourceHealthIndicator.java:104) at org.springframework.boot.actuate.health.AbstractHealthIndicator.health(AbstractHealthIndicator.java:84) at org.springframework.boot.actuate.health.CompositeHealthIndicator.health(CompositeHealthIndicator.java:68) at org.springframework.cloud.netflix.eureka.EurekaHealthCheckHandler.getHealthStatus(EurekaHealthCheckHandler.java:103) at org.springframework.cloud.netflix.eureka.EurekaHealthCheckHandler.getStatus(EurekaHealthCheckHandler.java:99) at com.netflix.discovery.DiscoveryClient.refreshInstanceInfo(DiscoveryClient.java:1382) at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:117) at com.netflix.discovery.InstanceInfoReplicator$1.run(InstanceInfoReplicator.java:101) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: Got minus one from a read call, connect lapse 3 ms., Authentication lapse 0 ms. at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:790) ``` ```

springboot项目启动问题

![图片说明](https://img-ask.csdn.net/upload/201906/26/1561543216_75712.png) 如图 数据库连接设置为本地就启动不起来 停在这里 换为阿里云就启动正常 什么情况 下面这个图片是连接换成阿里云后启动正常 ![图片说明](https://img-ask.csdn.net/upload/201906/26/1561530793_696212.png) 以下是数据库配置: spring.application.name = xmzjcqgl server.port = 8529 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver spring.datasource.url=jdbc:mysql://39.98.209.181:3306/history_as10_order?useUnicode=true&characterEncoding=UTF-8 spring.datasource.username=dog spring.datasource.password=riskdev #spring.datasource.url=jdbc:mysql://localhost:3306/history_as10_order?seSSL=true #spring.datasource.username=root #spring.datasource.password=root #spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver #spring.jpa.properties.hibernate.hbm2ddl.auto=update mybatis.type-aliases-package=com.example.xmzjcqgl.model mybatis.mapper-locations=classpath:mybatis/*.xml maxHttpHeaderSize="1" #编码格式 charset=UTF-8

技术大佬:我去,你写的 switch 语句也太老土了吧

昨天早上通过远程的方式 review 了两名新来同事的代码,大部分代码都写得很漂亮,严谨的同时注释也很到位,这令我非常满意。但当我看到他们当中有一个人写的 switch 语句时,还是忍不住破口大骂:“我擦,小王,你丫写的 switch 语句也太老土了吧!” 来看看小王写的代码吧,看完不要骂我装逼啊。 private static String createPlayer(PlayerTypes p...

你连存活到JDK8中著名的Bug都不知道,我怎么敢给你加薪

CopyOnWriteArrayList.java和ArrayList.java,这2个类的构造函数,注释中有一句话 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 public ArrayList(Collection&lt;? ...

副业收入是我做程序媛的3倍,工作外的B面人生是怎样的?

提到“程序员”,多数人脑海里首先想到的大约是:为人木讷、薪水超高、工作枯燥…… 然而,当离开工作岗位,撕去层层标签,脱下“程序员”这身外套,有的人生动又有趣,马上展现出了完全不同的A/B面人生! 不论是简单的爱好,还是正经的副业,他们都干得同样出色。偶尔,还能和程序员的特质结合,产生奇妙的“化学反应”。 @Charlotte:平日素颜示人,周末美妆博主 大家都以为程序媛也个个不修边幅,但我们也许...

记录下入职中软一个月(外包华为)

我在年前从上一家公司离职,没想到过年期间疫情爆发,我也被困在家里,在家呆着的日子让人很焦躁,于是我疯狂的投简历,看面试题,希望可以进大公司去看看。 我也有幸面试了我觉得还挺大的公司的(虽然不是bat之类的大厂,但是作为一名二本计算机专业刚毕业的大学生bat那些大厂我连投简历的勇气都没有),最后选择了中软,我知道这是一家外包公司,待遇各方面甚至不如我的上一家公司,但是对我而言这可是外包华为,能...

无代码时代来临,程序员如何保住饭碗?

编程语言层出不穷,从最初的机器语言到如今2500种以上的高级语言,程序员们大呼“学到头秃”。程序员一边面临编程语言不断推陈出新,一边面临由于许多代码已存在,程序员编写新应用程序时存在重复“搬砖”的现象。 无代码/低代码编程应运而生。无代码/低代码是一种创建应用的方法,它可以让开发者使用最少的编码知识来快速开发应用程序。开发者通过图形界面中,可视化建模来组装和配置应用程序。这样一来,开发者直...

培训班出来的人后来都怎么样了?(二)

接着上回说,培训班学习生涯结束了。后面每天就是无休止的背面试题,不是没有头脑的背,培训公司还是有方法的,现在回想当时背的面试题好像都用上了,也被问到了。回头找找面试题,当时都是打印下来天天看,天天背。 不理解呢也要背,面试造飞机,上班拧螺丝。班里的同学开始四处投简历面试了,很快就有面试成功的,刚开始一个,然后越来越多。不知道是什么原因,尝到胜利果实的童鞋,不满足于自己通过的公司,嫌薪水要少了,选择...

面试了一个 31 岁程序员,让我有所触动,30岁以上的程序员该何去何从?

最近面试了一个31岁8年经验的程序猿,让我有点感慨,大龄程序猿该何去何从。

6年开发经验女程序员,面试京东Java岗要求薪资28K

写在开头: 上周面试了一位女程序员,上午10::30来我们部门面试,2B哥接待了她.来看看她的简历: 个人简历 个人技能: ● 熟悉spring mvc 、spring、mybatis 等框架 ● 熟悉 redis 、rocketmq、dubbo、zookeeper、netty 、nginx、tomcat、mysql。 ● 阅读过juc 中的线程池、锁的源...

大三实习生,字节跳动面经分享,已拿Offer

说实话,自己的算法,我一个不会,太难了吧

程序员垃圾简历长什么样?

已经连续五年参加大厂校招、社招的技术面试工作,简历看的不下于万份 这篇文章会用实例告诉你,什么是差的程序员简历! 疫情快要结束了,各个公司也都开始春招了,作为即将红遍大江南北的新晋UP主,那当然要为小伙伴们做点事(手动狗头)。 就在公众号里公开征简历,义务帮大家看,并一一点评。《启舰:春招在即,义务帮大家看看简历吧》 一石激起千层浪,三天收到两百多封简历。 花光了两个星期的所有空闲时...

SpringBoot系列之Redis缓存使用详细教程

Spring的缓存抽象 Spring从3.1开始定义了一系列抽象接口来统一不同的缓存技术;并支持使用Java Caching(JSR-107)注解简化我们进行缓存开发。Spring Cache 只负责维护抽象层,具体的实现由你的技术选型来决定。将缓存处理和缓存技术解除耦合。 JSR107 Java Caching(JSR-107)定义了5个核心接口,分别是CachingProvider, Cach...

推荐9个能让你看一天的网站

分享的这9个保证另你意外的网站,每个都非常实用!非常干货!毫不客气的说,这些网站最少值10万块钱。 利用好这些网站,会让你各方面的技能都得到成长,不说让你走上人生巅峰,但对比现在的你,在眼界、学识、技能方面都有质的飞跃。 一、AIRPANO 传送门:https://www.airpano.com/360photo_list.php 这是一个可以躺在家里,就能环游世界的神奇网站。 世界那么大,绝大多...

大牛都会用的IDEA调试技巧!!!

导读 前天面试了一个985高校的实习生,问了他平时用什么开发工具,他想也没想的说IDEA,于是我抛砖引玉的问了一下IDEA的调试用过吧,你说说怎么设置断点...

都前后端分离了,咱就别做页面跳转了!统统 JSON 交互

文章目录1. 无状态登录1.1 什么是有状态1.2 什么是无状态1.3 如何实现无状态1.4 各自优缺点2. 登录交互2.1 前后端分离的数据交互2.2 登录成功2.3 登录失败3. 未认证处理方案4. 注销登录 这是本系列的第四篇,有小伙伴找不到之前文章,松哥给大家列一个索引出来: 挖一个大坑,Spring Security 开搞! 松哥手把手带你入门 Spring Security,别再问密...

月薪22K程序员,打卡迟到10次,收到工资短信一脸懵逼

每家公司为了保证公司员工每天的工作时间,一般都会采用上下班打卡的工作制度,这其实是一个很常见的是,本身也没有什么问题的。正所谓无规矩不成方圆,公司肯定是有公司的规矩,虽然每个员工都很不喜欢这些规矩来束缚我们,但是公司也只是为了能更好的管理员工。但是一家公司如果一成不变的使用打卡制度,而不会去变通管理,也真不一定是好事。 打卡制度特别对于销售部门来说,不但会让公司发展不起来,还很容易丢失员工。但如...

97年世界黑客编程大赛冠军作品(大小仅为16KB),惊艳世界的编程巨作

这是世界编程大赛第一名作品(97年Mekka ’97 4K Intro比赛)汇编语言所写。 整个文件只有4095个字节, 大小仅仅为16KB! 不仅实现了3D动画的效果!还有一段震撼人心的背景音乐!!! 内容无法以言语形容,实在太强大! 下面是代码,具体操作看最后! @echo off more +1 %~s0|debug e100 33 f6 bf 0 20 b5 10 f3 a5...

程序员是做全栈工程师好?还是专注一个领域好?

昨天,有位大一的同学私信我,说他要做全栈工程师。 我一听,这不害了孩子么,必须制止啊。 谁知,讲到最后,更确定了他做全栈程序员的梦想。 但凡做全栈工程师的,要么很惨,要么很牛! 但凡很牛的,绝不是一开始就是做全栈的! 全栈工程师听起来好听,但绝没有你想象的那么简单。 今天听我来给你唠,记得帮我点赞哦。 一、全栈工程师的职责 如果你学习编程的目的只是玩玩,那随意,想怎么学怎么学。...

不要再到处使用 === 了

我们知道现在的开发人员都使用 === 来代替 ==,为什么呢?我在网上看到的大多数教程都认为,要预测 JavaScript 强制转换是如何工作这太复杂了,因此建议总是使用===。这些都...

什么是a站、b站、c站、d站、e站、f站、g站、h站、i站、j站、k站、l站、m站、n站?00后的世界我不懂!

A站 AcFun弹幕视频网,简称“A站”,成立于2007年6月,取意于Anime Comic Fun,是中国大陆第一家弹幕视频网站。A站以视频为载体,逐步发展出基于原生内容二次创作的完整生态,拥有高质量互动弹幕,是中国弹幕文化的发源地;拥有大量超粘性的用户群体,产生输出了金坷垃、鬼畜全明星、我的滑板鞋、小苹果等大量网络流行文化,也是中国二次元文化的发源地。 B站 全称“哔哩哔哩(bilibili...

十个摸鱼,哦,不对,是炫酷(可以玩一整天)的网站!!!

文章目录前言正文**1、Kaspersky Cyberthreat real-time map****2、Finding Home****3、Silk – Interactive Generative Art****4、Liquid Particles 3D****5、WINDOWS93****6、Staggering Beauty****7、Ostagram图片生成器网址****8、全历史网址*...

终于,月薪过5万了!

来看几个问题想不想月薪超过5万?想不想进入公司架构组?想不想成为项目组的负责人?想不想成为spring的高手,超越99%的对手?那么本文内容是你必须要掌握的。本文主要详解bean的生命...

​能让德国人放弃现金支付​,也没谁了

在新冠疫情中,德国人越来越多地选择在超市,加油站或其他商店付款时使用非接触式付款方式。德国信贷协会Deutschen Kreditwirtschaft (DK) 的一位发言人告诉德国新...

大厂的 404 页面都长啥样?最后一个笑了...

每天浏览各大网站,难免会碰到404页面啊。你注意过404页面么?猿妹搜罗来了下面这些知名网站的404页面,以供大家欣赏,看看哪个网站更有创意: 正在上传…重新上传取消 腾讯 正在上传…重新上传取消 网易 淘宝 百度 新浪微博 正在上传…重新上传取消 新浪 京东 优酷 腾讯视频 搜...

自从喜欢上了B站这12个UP主,我越来越觉得自己是个废柴了!

不怕告诉你,我自从喜欢上了这12个UP主,哔哩哔哩成为了我手机上最耗电的软件,几乎每天都会看,可是吧,看的越多,我就越觉得自己是个废柴,唉,老天不公啊,不信你看看…… 间接性踌躇满志,持续性混吃等死,都是因为你们……但是,自己的学习力在慢慢变强,这是不容忽视的,推荐给你们! 都说B站是个宝,可是有人不会挖啊,没事,今天咱挖好的送你一箩筐,首先啊,我在B站上最喜欢看这个家伙的视频了,为啥 ,咱撇...

代码注释如此沙雕,会玩还是你们程序员!

某站后端代码被“开源”,同时刷遍全网的,还有代码里的那些神注释。 我们这才知道,原来程序员个个都是段子手;这么多年来,我们也走过了他们的无数套路… 首先,产品经理,是永远永远吐槽不完的!网友的评论也非常扎心,说看这些代码就像在阅读程序员的日记,每一页都写满了对产品经理的恨。 然后,也要发出直击灵魂的质问:你是尊贵的付费大会员吗? 这不禁让人想起之前某音乐app的穷逼Vip,果然,穷逼在哪里都是...

原来实现钉钉自动签到如此简单,每天准时上下班不是梦

本文主要介绍了如何利用现成软件快速实现钉钉自动签到功能,核心思路非常简单,甚至无任何编程基础的小白也能轻松实现定时自动打卡功能.

前端还能这么玩?(女朋友生日,用前端写了一个好玩的送给了她,高兴坏了)

前端还能这么玩?(女朋友生日,用前端写了一个好玩的送给了她,高兴坏了)

爬虫(101)爬点重口味的

小弟最近在学校无聊的很哪,浏览网页突然看到一张图片,都快流鼻血。。。然后小弟冥思苦想,得干一点有趣的事情python 爬虫库安装https://s.taobao.com/api?_ks...

讲真,这两款idea插件,能治愈你英语不好的病

时不时就有小伙伴问我,“二哥,能推荐一款 IDE 吗?”你看这话问的,现在搞 Java 的不都在用 Intellij IDEA 吗,还用得着推荐(我已经和 Eclipse 分手了)。然后小伙伴又说,“二哥,IDEA 支持中文吗?我英语不太好。”你看这话问的,搞编程的,英语不好是硬伤啊! 不过,随着 IDEA 最新版(版本号是 2020.1)的发布,英语不好的病可以彻底治愈了。为什么这么说呢?因为 ...

面试官给我挖坑:a[i][j] 和 a[j][i] 有什么区别?

点击上方“朱小厮的博客”,选择“设为星标”后台回复&#34;1024&#34;领取公众号专属资料本文以一个简单的程序开头——数组赋值:int LEN = 10000; int[][] ...

相关热词 c#树形选择 c#中类图的使用方法 c# 传参 调用exe c# 怎么定义方法 c# 修改本地时间 c#前台怎么读取资源文件 c# xml转list c#实现框选截图 m*m乘法表c# c# 乘法99表
立即提问