springboot为什么我配置了数据源仍然提示dataSource创建不成功?

spring:
datasource:
driver-class-name: com.mysql.jdbc.Driver
url: jdbc:mysql://localhost:3306/test713?serverTimezone=GMT
username: XFour
password: xuqingyuan753

    org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/XADataSourceAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Unable to create XADataSource instance from 'com.mysql.jdbc.jdbc2.optional.MysqlXADataSource'
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1128) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1022) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:512) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:296) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:754) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at com.xfour.AppRun.main(AppRun.java:16) [main/:na]

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.sql.DataSource]: Factory method 'dataSource' threw exception; nested exception is java.lang.IllegalStateException: Unable to create XADataSource instance from 'com.mysql.jdbc.jdbc2.optional.MysqlXADataSource'
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
... 20 common frames omitted
Caused by: java.lang.IllegalStateException: Unable to create XADataSource instance from 'com.mysql.jdbc.jdbc2.optional.MysqlXADataSource'
at org.springframework.boot.autoconfigure.jdbc.XADataSourceAutoConfiguration.createXaDataSourceInstance(XADataSourceAutoConfiguration.java:103) ~[spring-boot-autoconfigure-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.XADataSourceAutoConfiguration.createXaDataSource(XADataSourceAutoConfiguration.java:90) ~[spring-boot-autoconfigure-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at org.springframework.boot.autoconfigure.jdbc.XADataSourceAutoConfiguration.dataSource(XADataSourceAutoConfiguration.java:72) ~[spring-boot-autoconfigure-1.4.2.RELEASE.jar:1.4.2.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_112]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_112]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_112]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_112]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE]
... 21 common frames omitted

6个回答

spring.datasource.url=jdbc:mysql://localhost:3306/test713?useUnicode=true&characterEncoding=UTF8
spring.datasource.username=XFour
spring.datasource.password=xuqingyuan753
spring.datasource.driverClassName=com.mysql.jdbc.Driver

org.springframework.beans.BeanInstantiationException
你看看你的配置是否有问题

qq_40453068
XFour837 请问下怎么看呢?我就在resources底下写了一个application.properties,然后里面是数据库的信息,我原来写都没有报错,今天晚上一直报错,很难受
一年多之前 回复

感觉是数据库驱动的问题

mysql:
admin:
host: 127.0.0.1
port: 3306
database: meeting
username: root
password: 123456

把编码加上应该就可以了

问题解决了,实际上是原来在做一个东西的时候加入了多数据源的jar包后来没有删除导致的,不过还是谢谢各位的回答

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import org.springframework.transaction.PlatformTransactionManager; import org.springframework.transaction.jta.JtaTransactionManager; @Configuration public class DataSourceConfig { //连接数据库db1 @Bean("test1") @ConfigurationProperties("spring.datasource.test1") public DataSource test1() { return DataSourceBuilder.create().build(); } //连接数据库db2 @Bean("test2") @ConfigurationProperties("spring.datasource.test2") public DataSource test2() { return DataSourceBuilder.create().build(); } @Bean("dynamicDataSource") @Primary public DataSource dynamicDataSource() { DynamicDataSource dataSource = new DynamicDataSource(); dataSource.setDefaultTargetDataSource(test1()); Map<Object, Object> dataSourceMap = new HashMap<>(2); dataSourceMap.put(DataSourceEnum.TEST1.getName(), test1()); dataSourceMap.put(DataSourceEnum.TEST2.getName(), test2()); dataSource.setTargetDataSources(dataSourceMap); return dataSource ; } @Bean public PlatformTransactionManager transactionManager() { return new DataSourceTransactionManager(dynamicDataSource()); } } ``` DataSourceEnum ``` package com.common.db; import lombok.AllArgsConstructor; import lombok.Getter; @AllArgsConstructor @Getter public enum DataSourceEnum { DEFAULT("test1"), TEST1("test1"), TEST2("test2"); private String name; } ``` DataSourceHolder ``` package com.common.db; public class DataSourceHolder { private static final ThreadLocal<String> DS_HOLDER = new ThreadLocal<>(); public static void setDataSource(DataSourceEnum dataSource) { DS_HOLDER.set(dataSource.getName()); } public static String getDataSource() { return DS_HOLDER.get(); } public static void clearDataSource() { DS_HOLDER.remove(); } } ``` DataSourceSet ``` package com.common.db; import java.lang.annotation.Documented; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) @Documented public @interface DataSourceSet { //枚举 DataSourceEnum value(); } ``` DynamicDataSource ``` package com.common.db; import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource; public class DynamicDataSource extends AbstractRoutingDataSource { @Override protected Object determineCurrentLookupKey() { //基于aop切换数据源 System.out.println("dynamic datasource 切换数据源" + DataSourceHolder.getDataSource()); return DataSourceHolder.getDataSource(); } } ``` 测试调用 ``` server层 @Override @DataSourceSet(DataSourceEnum.TEST1) public String test1(Long id) { String s = programRepository.findids(id); System.out.println(s); return s; } @Override @DataSourceSet(DataSourceEnum.TEST2) public String test2(Long id) { String s = testRepository.findids1(id); System.out.println(s); return s; } ``` ``` Controller层 @PostMapping("/test") @ResponseBody public ResultVo test(Long id) { id = 1l; String beProgram1 = programService.test1(id); System.out.println(222); id=2l; String beProgram = testService.test2(id); System.out.println(333); return ResultVoUtil.success(beProgram+beProgram1); } ```
spring+hibernate配置多数据源动态切换,java实体如何和各个数据库实例映射?
我的一个javaweb项目,需要用到多个数据源,都是oracle实例,我用spring配置了数据源的动态切换。使用AOP在service层做拦截,然后用注解DataSource来标示所要选择的数据源。现在我有一个问题,就是我用数据库操作时,hibernate是面向对象的,我该如何将不同的java实体映射到不同的数据源上(不同数据库表结构不同)。比如一个product包中的java实体映射到数据库1,cart包中的实体映射到数据库2。如何做到呢?
mybatis的配置数据库链接信息 DataSource type=“POOLED”
mybatis的配置数据库链接信息 DataSource type=“POOLED”什么意思啊? type有没有其他值了啊,都分别什么意思啊
Spring MVC 多数据源,配置完事务之后就不能正常切换数据源,求大神指点
两张附图事务没配置的时候数据源切换正常,加上事务之后就一直显示的是默认连接的数据源, 这是为什么啊??百思不得其解,,求神哥神姐解惑啊 ![数据源](https://img-ask.csdn.net/upload/201506/23/1435049086_552380.png) ![红框里边的是我配置的事务](https://img-ask.csdn.net/upload/201506/23/1435049216_341984.png) 这个是数据源切换代码 ![数据源切换代码](https://img-ask.csdn.net/upload/201506/30/1435647657_319010.png) 切换的时候就是 每次在掉底层方法之前先设置下数据库 向下面这样 MultipleDataSource.setDataSourceKey("yz_dataSource"); MultipleDataSource.setDataSourceKey("news_dataSource");
springboot整合mybatis-plus无法映射xml文件
异常信息: ```org.apache.ibatis.binding.BindingException: Invalid bound statement (not found)``` 异常原因排除: 1. 项目正常启动 2. mybaits-plus配置mapper.xml扫描没问题 ```xml mybatis-plus: # 配置扫描xml mapper-locations: classpath*:mapper/*/*Mapper.xml # 实体扫描,多个package用逗号或者分号分隔 type-aliases-package: org.cnplo.control.modules.admin.domain ``` 3. mapperscan扫描mapper正常 4.mybatis-plus的配置文件 MybatisPlusConfig配置 ```java @Configuration @MapperScan("org.cnplo.control.modules.*.mapper") public class MybatisPlusConfig { /** * 乐观锁插件 */ @Bean public OptimisticLockerInterceptor optimisticLockerInterceptor() { return new OptimisticLockerInterceptor(); } /** * mybatis-plus分页插件 */ @Bean public PaginationInterceptor paginationInterceptor() { return new PaginationInterceptor(); } } ``` DruidDataSourceConfig配置 ```java @Configuration public class DruidDataSourceConfig { /** * @return DruidDataSource */ @Bean @ConfigurationProperties(prefix = "spring.datasource") public DruidDataSource druidDataSource() { return new DruidDataSource(); } /** * 配置事物管理器 */ @Bean public DataSourceTransactionManager transactionManager() { return new DataSourceTransactionManager(druidDataSource()); } } ``` 项目正常启动,执行数据库请求的时候异常BindingException。请问这是什么问题,大胆猜测是哪个jar包升级引起的,还请大佬们不吝赐教 ``` <properties> <java.version>1.8</java.version> <json.version>1.2.54</json.version> <druid.version>1.1.20</druid.version> <swagger.version>2.7.0</swagger.version> <mybatisplus.version>3.3.1.tmp</mybatisplus.version> </properties> <dependencies> <!--web--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--lombok--> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <!--druid--> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>${druid.version}</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> <!-- mybatisplus与springboot整合 --> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>${mybatisplus.version}</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus</artifactId> <version>${mybatisplus.version}</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-autoconfigure</artifactId> <version>1.3.2</version> </dependency> <!-- swagger2 rest api start--> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>${swagger.version}</version> </dependency> <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger-ui</artifactId> <version>${swagger.version}</version> </dependency> <!--json工具--> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>${json.version}</version> </dependency> <!-- jwt --> <dependency> <groupId>io.jsonwebtoken</groupId> <artifactId>jjwt</artifactId> <version>0.9.1</version> </dependency> <!--redis--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <!--thymeleaf--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <!--test--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <exclusions> <exclusion> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> </exclusion> </exclusions> </dependency> </dependencies> ```
springboot+jpa+jta-atomikos多数据源事务异常
springboot + jpa配置jta事务,出现第一个数据源可以正常使用,但第二个只能查询,不能CRUD操作,求大神指点 第一个数据源如下: @Configuration @EnableTransactionManagement @EnableJpaRepositories(basePackages = "com.saxon.primary.dao", entityManagerFactoryRef = "primaryEntityManagerFactory", transactionManagerRef = "jtaTransactionManager") public class PrimaryDataSourceConfig { @Bean @Primary @ConfigurationProperties("spring.primary.datasource") public DataSourceProperties primaryProperties(){ return new DataSourceProperties(); } @Bean @Primary @ConfigurationProperties("spring.primary.datasource") public DataSource primaryDataSource(){ return primaryProperties().initializeDataSourceBuilder().build(); } @Bean @Primary public LocalContainerEntityManagerFactoryBean primaryEntityManagerFactory(EntityManagerFactoryBuilder builder){ return builder .dataSource(primaryDataSource()) .persistenceUnit("primary") .packages("com.saxon.primary.entity") .build(); } } 第二个数据源: @Configuration @EnableTransactionManagement @EnableJpaRepositories(basePackages = "com.saxon.others.dao", entityManagerFactoryRef = "othersEntityManagerFactory", transactionManagerRef = "jtaTransactionManager") public class OthersDataSourceConfig { @Bean @ConfigurationProperties("spring.others.datasource") public DataSourceProperties othersProperties(){ return new DataSourceProperties(); } @Bean @ConfigurationProperties("spring.others.datasource") public DataSource othersDataSource(){ return othersProperties().initializeDataSourceBuilder().build(); } @Bean public LocalContainerEntityManagerFactoryBean othersEntityManagerFactory(EntityManagerFactoryBuilder builder){ return builder .dataSource(othersDataSource()) .persistenceUnit("others") .packages("com.saxon.others.entity") .build(); } } jta事务配置: @Configuration @EnableTransactionManagement public class TransactionManagerConfig { @Bean(destroyMethod = "close", initMethod = "init") public UserTransactionManager userTransactionManager() { UserTransactionManager userTransactionManager = new UserTransactionManager(); userTransactionManager.setForceShutdown(false); return userTransactionManager; } public @Bean UserTransaction userTransaction() throws Throwable { UserTransactionImp userTransactionImp = new UserTransactionImp(); userTransactionImp.setTransactionTimeout(300); return userTransactionImp; } public @Bean PlatformTransactionManager jtaTransactionManager() throws Throwable { JtaTransactionManager jtaTransactionManager = new JtaTransactionManager(); jtaTransactionManager.setTransactionManager(userTransactionManager()); jtaTransactionManager.setUserTransaction(userTransaction()); return jtaTransactionManager; } } 但执行第二个数据源的crud操作,报如下异常: 2017-07-20 18:00:43.131 ERROR 46084 --- [nio-9008-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.dao.InvalidDataAccessApiUsageException: no transaction is in progress; nested exception is javax.persistence.TransactionRequiredException: no transaction is in progress] with root cause javax.persistence.TransactionRequiredException: no transaction is in progress at org.hibernate.jpa.spi.AbstractEntityManagerImpl.checkTransactionNeeded(AbstractEntityManagerImpl.java:1136) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final] at org.hibernate.jpa.spi.AbstractEntityManagerImpl.flush(AbstractEntityManagerImpl.java:1297) ~[hibernate-entitymanager-5.0.12.Final.jar:5.0.12.Final] 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.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:347) ~[spring-orm-4.3.9.RELEASE.jar:4.3.9.RELEASE] at com.sun.proxy.$Proxy76.flush(Unknown Source) ~[na: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]
使用com.mchange.v2.c3p0.ComboPooledDataSource配置数据源
为什么使用com.mchange.v2.c3p0.ComboPooledDataSource配置数据源, bean的id只能为dataSource,我将id改成dataSource2之后就报错; ``` Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'dataSource2' of bean class [org.springframework.orm.hibernate4.LocalSessionFactoryBean]: Bean property 'dataSource2' is not writable or has an invalid setter method. Did you mean 'dataSource'? ```
DataSource的getConnection调用时机
在一个配置多数据源的项目中,有一个类MyDataSource继承了AbstractRoutingDataSource类,再spring xml 中配置好数据源,现在不明白的是怎样切换数据源,运行时,每次有数据库操作都会调用DataSource的getConnection();来获取数据源建立连接吗? 请大家指教
sprongboot配置双数据源问题
springboot 要配置一个mysql数据库一个sqlserver数据库 下面是我的配置 ``` spring: datasource: master: driver-class-name: com.mysql.jdbc.Driver jdbc-url: jdbc:mysql://***************************/gac?useUnicode=true&characterEncoding=UTF-8 username: **** password: **** other: driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver jdbc-url: jdbc:sqlserver://*********************** username: **** password: **** session: store-type: redis redis: host: **** port: **** ``` 主数据库配置 ``` @Primary @Bean(name = "masterDataSource") @ConfigurationProperties(prefix = "spring.datasource.master") public DataSource dataSource() { return DataSourceBuilder.create().build(); } @Primary @Bean(name = "masterSqlSessionFactory") public SqlSessionFactory sqlSessionFactory(@Qualifier("masterDataSource") DataSource dataSource) throws Exception { SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean(); factoryBean.setDataSource(dataSource); factoryBean.setTypeAliasesPackage("com.gac.entity"); factoryBean.setMapperLocations( new PathMatchingResourcePatternResolver().getResources("classpath:mapper/*.xml")); return factoryBean.getObject(); } @Primary @Bean(name = "masterTransactionManager") public DataSourceTransactionManager transactionManager(@Qualifier("masterDataSource") DataSource dataSource) { return new DataSourceTransactionManager(dataSource); } @Primary @Bean(name = "masterSqlSessionTemplate") public SqlSessionTemplate testSqlSessionTemplate( @Qualifier("masterSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception { return new SqlSessionTemplate(sqlSessionFactory); } ``` 第二个数据库配置 ``` @Bean(name = "otherDataSource") @ConfigurationProperties(prefix = "spring.datasource.other") public DataSource dataSource() { return DataSourceBuilder.create().build(); } @Bean(name = "otherTransactionManager") public DataSourceTransactionManager transactionManager(@Qualifier("otherDataSource") DataSource dataSource) { return new DataSourceTransactionManager(dataSource); } @Bean(name = "otherSqlSessionFactory") public SqlSessionFactory basicSqlSessionFactory(@Qualifier("otherDataSource") DataSource basicDataSource) throws Exception { SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean(); factoryBean.setDataSource(basicDataSource); factoryBean.setMapperLocations( new PathMatchingResourcePatternResolver().getResources("classpath:other/*.xml")); return factoryBean.getObject(); } @Bean(name = "otherSqlSessionTemplate") public SqlSessionTemplate testSqlSessionTemplate( @Qualifier("otherSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception { return new SqlSessionTemplate(sqlSessionFactory); } ``` 启动类配置 ``` @Configuration @EnableTransactionManagement @SpringBootApplication(exclude={ DataSourceAutoConfiguration.class, //        HibernateJpaAutoConfiguration.class, //(如果使用Hibernate时,需要加)   DataSourceTransactionManagerAutoConfiguration.class, }) @Import({InitServiceConfiguration.class, InitConfiguration.class}) @ComponentScan("com.gac") public class adminApiApplication { public static void main(String[] args) { SpringApplication.run(adminApiApplication.class, args); } } ``` 报错 ``` Caused by: org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'javax.sql.DataSource' available: more than one 'primary' bean found among candidates: [masterDataSource, otherDataSource, dataSource] ``` 已经在主配置里面加了@Primary 然后在启动类里面也加了(exclude={ DataSourceAutoConfiguration.class, //        HibernateJpaAutoConfiguration.class, //(如果使用Hibernate时,需要加)   DataSourceTransactionManagerAutoConfiguration.class, }) 为什么还会报多数据源问题? 麻烦哪位大佬帮帮看一下问题 谢谢
datagridview刷新数据 但会停留在首行,不知道怎么解决,求大神指导?
private void timer1_Tick(object sender, EventArgs e) { string connSql = ConfigurationManager.ConnectionStrings["sql"].ConnectionString; string sql = "select [UserID],[UserName],[UserPwd],[ErrorTimes], [LastErrorDateTime] from [UserInfo];select * from SCS_Stocker_Parameter"; DataSet ds = new DataSet(); adaper.Fill(ds); //dataGridView1.DataSource = ds.Tables[1]; DataTable tbl = ds.Tables[1]; bindingSource1.DataSource = tbl; dataGridView1.DataSource = bindingSource1; dataGridView1.Update(); }
springboot项目,配置多数据源mysql+SqlServer,第一天访问正常,长时间不操作到第二天报错
mysql的配置已经加上了。没配多数据源前一切正常,配置多数据源后,长时间不操作,第二天重新请求报错,求各位大佬帮忙看一下什么原因,怎么解决~ 报错日志: ger for transaction; nested exception is javax.persistence.PersistenceException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 224,866,443 milliseconds ago.  The last packet sent successfully to the server was 224,866,443 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.] org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is javax.persistence.PersistenceException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 224,866,443 milliseconds ago.  The last packet sent successfully to the server was 224,866,443 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.     at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:431)     at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373)     at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:447)     at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:277)     at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)     at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)     at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)     at com.sun.proxy.$Proxy90.findAreaInfo(Unknown Source)     at com.quickdone.znwh.controller.AreaController.findAreaInfo(AreaController.java:40)     at sun.reflect.GeneratedMethodAccessor148.invoke(Unknown Source)     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:205)     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116)     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at com.quickdone.znwh.WebConfig$1.doFilter(WebConfig.java:70)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     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:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105)     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     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:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:115)     at org.springframework.boot.web.support.ErrorPageFilter.access$000(ErrorPageFilter.java:59)     at org.springframework.boot.web.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:90)     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)     at org.springframework.boot.web.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:108)     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)     at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)     at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:617)     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)     at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)     at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:668)     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1527)     at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1484)     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)     at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)     at java.lang.Thread.run(Thread.java:745) Caused by: javax.persistence.PersistenceException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 224,866,443 milliseconds ago.  The last packet sent successfully to the server was 224,866,443 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.     at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1692)     at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1602)     at org.hibernate.jpa.spi.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:1700)     at org.hibernate.jpa.internal.TransactionImpl.begin(TransactionImpl.java:48)     at org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:189)     at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:380)     ... 71 common frames omitted Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 224,866,443 milliseconds ago.  The last packet sent successfully to the server was 224,866,443 milliseconds ago. is longer than the server configured value of 'wait_timeout'. 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