在Springboot2.1.1 pom中添加 <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency> 整个项目就不编译了 环境 JDK1.8 maven3.5

我在进行Spring（V:3.2.3.RELEASE）+mybatis(V:3.2.4)+mybatis-spring(V:1.1.1)整合。有一个ClassRoom班级类： //班级id private int classId; //班级编码 private String classCode; //班级名字 private String className; //所属学院 private College college; //标记 private int flag; 学院类College属性是： private int collegeId; private String collegeCode; private String collegeName; private int flag; ClassRoomMapper.xml配置如下： <resultMap type="com.yao.model.ClassRoom" id="ClassRoomMap"> <id column="class_id" property="classId"/> <result column="class_code" property="classCode"/> <result column="class_name" property="className"/> <result column="class_flag" property="flag"/> <!-- <association property="college" javaType="com.yao.model.College" column="college" select="com.yao.dao.CollegeDao.loadByCode" /> --> <association property="college" javaType="com.yao.model.College"> <id column="college_id" property="collegeId"/> <result column="college_code" property="collegeCode"/> <result column="college_name" property="collegeName"/> <result column="college_flag" property="flag"/> </association> </resultMap> 查询班级信息语句如下： <select id="loadByCode" resultMap="ClassRoomMap"> select t.class_id, t.class_code,t.class_name, t.flag as 'class_flag',t2.college_code, t2.college_id, t2.college_name, t2.flag as 'college_flag' from t_class t left join t_college t2 on t.college =t2.college_code where t.class_code = #{classCode} </select> beans.xml中配置ClassDao如下： <bean id="classRoomDao" class="org.mybatis.spring.mapper.MapperScannerConfigurer" scope="prototype"> <property name="mapperInterface" value="com.yao.dao.ClassRoomDao"></property> <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> </bean> 在进行查询（loadByCode） 的时候报错如下： Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'classRoomDao' defined in class path resource [applicationContext.xml]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: org.apache.ibatis.builder.BuilderException: Error parsing Mapper XML. Cause: java.lang.IllegalStateException: Type handler was null on parameter mapping for property 'college'. It was either not specified and/or could not be found for the javaType / jdbcType combination specified. 请问这是什么原因呢？还需要重新写college与数据库字段对应的关系吗？我已经在association中增加了对应字段的配置。

### idea创建springboot工程，pom添加mybatis-plus-boot-starter 3.2.0依赖，可是相关依赖没有下载  如图，为啥下边没有其他依赖呢，

spring boot中引入了mybatis-spring-boot-starter的依赖，但这个jar包中的子依赖没有引入进来。哪位大牛遇到过这个问题？？？ 注：spring boot是2.0.1版的，mybatis组件是在创建工程的时候选择的 

下面是报错信息 Failed to execute goal org.mybatis.generator:mybatis-generator-maven-plugin:1.3.2:generate (default-cli) on project andon: configfile D:\newCode2\yourLocation\mybatis-generator-config.xml does not exist -> [Help 1] 说是mybatis-generator-config.xml这个文件不存在，但是我是存在的，如下图  请问各位这是什么原因？

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'oauthRepositoryJdbc': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private org.springframework.jdbc.core.JdbcTemplate com.qdong.sos.infrastructure.jdbc.OauthRepositoryJdbc.jdbcTemplate; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [org.mybatis.spring.SqlSessionFactoryBean] for bean with name 'sqlSessionFactory' defined in file [D:\Program Files\apache-tomcat-7.0.65\webapps\spring-oauth-server\WEB-INF\classes\spring\context.xml]; nested exception is java.lang.ClassNotFoundException: org.mybatis.spring.SqlSessionFactoryBean 以上是报错内容，很明显是缺少org.mybatis.spring.SqlSessionFactoryBean，但这个class是存在的。 前言：项目dao层起先是使用Spring-Jdbc，现在想使用Spring-Mybatis，但保留Spring-Jdbc，以下是它俩的配置  配置很简单，但启动项目，就报了上面的错，我一直怀疑是版本冲突的问题，但尝试了好几个版本的jar包，依然没有解决问题，不知哪位大神能帮我解决问题，在此先谢过了，联系QQ344099997

 mybatis依赖写成<version>${mybatis-spring-boot}</version>就报错，但是写成<version>1.3.2</version>就好了，这是为什么呢

1. 请问各位大神们，Spring+SpringMVC+MyBatis+sharding-jdbc分表，只分其中的几张表，如何配置整合。 2. 元素类型为 "mapper" 的内容必须匹配 "(cache-ref|cache|resultMap*|parameterMap*|sql*|insert*|update*|delete*|select*)+"这个错误是为什么？

今天配这花了一下午，我是根据[eclipse 如何引入本地dtd ](http://www.cnblogs.com/wangmingshun/p/5675952.html "")来搞的，发现没效果，我用的eclipse Mars.2 ``` <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> </configuration> ```   都没效果

单元测试报错： Invalid bound statement (not found): com.cn.mysite .mybatisdemo.dao.IUserDao.queryUserList 下面相关代码和配置文件： 1、先放上结构图：  2、spring-mybatis.xml配置文件代码如下： <!-- 自动扫描 --> <context:component-scan base-package="com.cn.mysite.mybatisdemo" /> <!-- jdbc配置文件导入 --> <context:property-placeholder location="classpath:jdbc.properties"/> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <!-- 连接池配置 --> <property name="driverClassName" value="${database.driverClassName}"/> <property name="url" value="${database.url}"/> <property name="username" value="${database.username}"/> <property name="password" value="${database.password}"/> <!-- 初始化连接大小 --> <property name="initialSize" value="0"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="20"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="20"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="1"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="30000"></property> </bean> <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <property name="mapperLocations" value="classpath*:com/cn/mysite/mybatisdemo/mapping/*.xml"/> </bean> <!-- DAO接口所在包名，Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.cn.mysite.mybatisdemo.dao" /> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/> </bean> ``` ``` 3、IUserDao接口代码： public interface IUserDao { List<User> queryUserList(); } ``` 4、mapping中xml映射文件： <?xml version="1.0" encoding= "UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" > <mapper namespace= "com.cn.mysite.mybatisdemo.dao.IUserDao" > <resultMap type ="com.cn.mysite.mybatisdemo.model.User" id="usermap"> <result property ="id" column="id" /> <result property ="name" column="name" /> <result property ="age" column="age" /> <result property ="email" column="email" /> <result property ="address" column="address" /> </resultMap> <!-- 查询所有用户记录 --> <select id ="queryUserList" resultMap= "usermap"> select * from person </select > </mapper> 5、测试类： @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations = {"classpath:spring-mybatis.xml"}) public class MybatisTest { @Resource private IUserDao dao; @Test public void test() { dao.queryUserList(); System.out.println("Hello World!"); } } 单元测试就开始报错，请大家帮看一下是哪一步出错了，感觉好奇怪啊，实在查不出问题了

spring 3+mybatis3+spring security整合，我的包和层次结构如下：采用的是按照模块分层， 每层有dao,sevrice,web三个目录，所有的实体类放在model文件夹中 security包中，有dao,service,web三个目录，其中 SecurityDao.java @MyBatisDao public interface SecurityDao extends BaseMapper<Security> { // 获得群组usergroups对应的权限 public List<Security> getGroupResources(); } SecurityService.java接口 ``` public interface SecurityService extends BaseService<Security> { public List<Security> getGroupResources(); } ``` SecurityServiceImpl .java @Service(value = "securityService") public class SecurityServiceImpl implements SecurityService { @Autowired private SecurityDao securityDao; // 获得群组usergroups对应的权限 public List<Security> getGroupResources() { return securityDao.getGroupResources(); } } MyBatisDao.java ``` /** * 标识MyBatis的DAO,方便{@link org.mybatis.spring.mapper.MapperScannerConfigurer}的扫描。 * */ @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.TYPE) @Documented @Component public @interface MyBatisDao { /** * The value may indicate a suggestion for a logical component name, * to be turned into a Spring bean in case of an autodetected component. * @return the suggested component name, if any */ String value() default ""; } ``` 然后系统有一个model的包，存放各模块的实体类这里有security.java，get/set就省略 了， 然后在maven的resource下建立文件src\resource\mappings\modules\security\SecurityDao.xml ``` <mapper namespace="com.liao.modules.core.security.dao.SecurityDao"> <resultMap id="getUserInfoMap" type="Security"> <result property="userid" column="userid"/> <result property="username" column="username"/> <result property="password" column="password"/> <result property="enabled" column="enabled"/> </resultMap> <select id="getGroupResources" resultType="Security"> select g.role_name roleName,a.url resourceValue from usergroups g join groupauthority_mapping ga on g.groupid=ga.groupid join authority a on ga.authorityid=a.authorityid </select> ``` spring-mvc.xml: ``` <!-- 自动扫描bean，把作了注解的类转换为bean --> <context:component-scan base-package="com.liao" > <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/> </context:component-scan> ``` 其他mvc配置省略 spring-context-application.xml: ``` <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <!-- 自动匹配Mapper映射文件 --> <property name="mapperLocations" value="classpath:mappings/**/*.xml"/> <property name="typeAliasesPackage" value="com.liao.model"/> <property name="configLocation" value="classpath:/mybatis-config.xml"></property> </bean> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.liao" /> <property name="annotationClass" value="com.itownet.isms.core.annotation.MyBatisDao"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" /> </bean> <!-- 事务配置 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> ``` mybatis-config.xml: ``` <configuration> <!-- 全局参数 --> <settings> <!-- 使全局的映射器启用或禁用缓存。 --> <setting name="cacheEnabled" value="true"/> <!-- 全局启用或禁用延迟加载。当禁用时，所有关联对象都会即时加载。 --> <setting name="lazyLoadingEnabled" value="true"/> <!-- 当启用时，有延迟加载属性的对象在被调用时将会完全加载任意属性。否则，每种属性将会按需要加载。 --> <setting name="aggressiveLazyLoading" value="true"/> <!-- 是否允许单条sql 返回多个数据集 (取决于驱动的兼容性) default:true --> <setting name="multipleResultSetsEnabled" value="true"/> <!-- 是否可以使用列的别名 (取决于驱动的兼容性) default:true --> <setting name="useColumnLabel" value="true"/> <!-- 允许JDBC 生成主键。需要驱动器支持。如果设为了true，这个设置将强制使用被生成的主键，有一些驱动器不兼容不过仍然可以执行。 default:false --> <setting name="useGeneratedKeys" value="false"/> <!-- 指定 MyBatis 如何自动映射 数据基表的列 NONE：不隐射　PARTIAL:部分 FULL:全部 --> <setting name="autoMappingBehavior" value="PARTIAL"/> <!-- 这是默认的执行类型 （SIMPLE: 简单； REUSE: 执行器可能重复使用prepared statements语句；BATCH: 执行器可以重复执行语句和批量更新） --> <setting name="defaultExecutorType" value="SIMPLE"/> <!-- 使用驼峰命名法转换字段。 --> <setting name="mapUnderscoreToCamelCase" value="true"/> <!-- 设置本地缓存范围 session:就会有数据的共享 statement:语句范围 (这样就不会有数据的共享 ) defalut:session --> <setting name="localCacheScope" value="SESSION"/> <!-- 设置但JDBC类型为空时,某些驱动程序 要指定值,default:OTHER，插入空值时不需要指定类型 --> <setting name="jdbcTypeForNull" value="NULL"/> </settings> ``` 在spring secrutiy中，调用 ``` public class DefinitionSourceFactoryBean implements FilterInvocationSecurityMetadataSource { @Autowired private SecurityService securityService; public void findResources() { List<Security> resourcesgroup = securityService.getGroupResources(); ｝ ｝ ``` 这个时候在运行securityService.getGroupResources();,说： mybatis,Invalid bound statement (not found): com.liao.core.security.dao.SecurityDao.getGroupResources 编译后，已经检查过，maoper.xml在web-inf\classes目录下了，为什么呢？

自己搭建了两个demo，按照网上的提示，最终都报 Exception getting jdbc driver, 我用的mysql，驱动依赖都有，因为不用mybatis-generator是能够运行的，可以与数据库连接实现简单的DQL和DML语句， 这是我的项目结构 下面这是我的generatorConfig.xml文件的配置， <context id="MySQLTables"> <commentGenerator> <property name="suppressDate" value="true" /> <property name="suppressAllComments" value="false" /> </commentGenerator> <!--数据库链接地址账号密码 --> <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/mydb" userId="root" password="root" /> <javaTypeResolver> <property name="forceBigDecimals" value="false" /> </javaTypeResolver> <!--生成Model类存放位置 --> <javaModelGenerator targetPackage="com.doudo.pojo" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> <property name="trimStrings" value="true" /> </javaModelGenerator> <!--生成映射文件存放位置 --> <sqlMapGenerator targetPackage="com.doudo.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> </sqlMapGenerator> <javaClientGenerator type="XMLMAPPER" targetPackage="com.doudo.mapper" targetProject="src/main/java"> <property name="enableSubPackages" value="true" /> </javaClientGenerator> <!--生成对应表及类名 --> <table tableName="user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false"></table> 下面这是pom.xml代码 <name>AdminLTE</name> <description></description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.8.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.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> <dependency> <groupId>net.sourceforge.nekohtml</groupId> <artifactId>nekohtml</artifactId> <version>1.9.21</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.5</version> <dependencies> <dependency> <groupId> mysql</groupId> <artifactId> mysql-connector-java</artifactId> <version> 5.1.39</version> </dependency> <dependency> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-core</artifactId> <version>1.3.5</version> </dependency> </dependencies> <executions> <execution> <id>Generate MyBatis Artifacts</id> <phase>package</phase> <goals> <goal>generate</goal> </goals> </execution> </executions> <configuration> <!--允许移动生成的文件 --> <verbose>true</verbose> <!-- 是否覆盖 --> <overwrite>true</overwrite> <!-- 自动生成的配置 --> <configurationFile>src/main/resources/mybatis-generator.xml</configurationFile> </configuration> </plugin> </plugins> </build>

``` 2018-06-24 17:32:23.171 ERROR 6371 --- [nio-8080-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.NullPointerException ### The error may exist in file [/Users/ww/IdeaProjects/test-Service/test-Search/target/classes/mapping/TestMapper.xml] ### The error may involve com.test.data.mapper.TestMapper.selectByPrimaryKey ### The error occurred while executing a query ### Cause: java.lang.NullPointerException] with root cause java.lang.NullPointerException: null ``` 我的pom.xml ``` <!-- Spring Boot Mybatis--> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.2</version> </dependency> <!-- 数据源 --> <dependency> <groupId>com.alibaba</groupId> <artifactId>druid</artifactId> <version>1.0.19</version> </dependency> <!-- MySQL--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.39</version> </dependency> ``` TestMapper.java代码 ``` TestConfig selectByPrimaryKey(Long id); ``` TestMapper.xml ``` <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Long" > select <include refid="Base_Column_List" /> from test_config where id = #{id,jdbcType=BIGINT} </select> ``` 请各位大神帮忙看一下，几乎所有查询都报这个错误，用了@Param 注释也不行

现在公司好多都用 ssm，但是他们各自的作用是什么呢，后台处理逻辑怎么个写法呢？

<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/mvc" > <!-- mybatis相关配置 --> <!-- 自动扫描 --> <context:component-scan base-package="com.saicmotor.dam"/> <!-- 引入配置文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:dbconfig.properties"/> </bean> <!-- 数据库 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${driver}"/> <property name="url" value="${url}"/> <property name="username" value="${username}"/> <property name="password" value="${password}"/> <!-- 初始化连接大小 --> <property name="initialSize" value="${initialSize}"></property> <!-- 连接池最大数量 --> <property name="maxActive" value="${maxActive}"></property> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${maxIdle}"></property> <!-- 连接池最小空闲 --> <property name="minIdle" value="${minIdle}"></property> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${maxWait}"></property> </bean> <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"/> <!-- 自动扫描mapping.xml文件 --> <property name="mapperLocations" value="classpath:com/saicmotor/dam/mapping/*.xml"></property> </bean> <!-- DAO接口所在包名，Spring会自动查找其下的类 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.saicmotor.dam.dao"/> <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property> </bean> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> </beans> 这个是spring-mybatis.xml 问题是在IDEA里面，单元测试junit，提示下面错误 Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [spring-mybatis.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:com/saicmotor/dam/mapping/*.xml]: class path resource [com/saicmotor/dam/mapping/] cannot be resolved to URL because it does not exist at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:128) at org.springframework.test.context.support.AbstractGenericContextLoader.loadContext(AbstractGenericContextLoader.java:60) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.delegateLoading(AbstractDelegatingSmartContextLoader.java:108) at org.springframework.test.context.support.AbstractDelegatingSmartContextLoader.loadContext(AbstractDelegatingSmartContextLoader.java:251) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ... 24 more Caused by: org.springframework.beans.TypeMismatchException: Failed to convert property value of type 'java.lang.String' to required type 'org.springframework.core.io.Resource[]' for property 'mapperLocations'; nested exception is java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:com/saicmotor/dam/mapping/*.xml]: class path resource [com/saicmotor/dam/mapping/] cannot be resolved to URL because it does not exist at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:608) at org.springframework.beans.AbstractNestablePropertyAccessor.convertForProperty(AbstractNestablePropertyAccessor.java:615) at org.springframework.beans.BeanWrapperImpl.convertForProperty(BeanWrapperImpl.java:216) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.convertForProperty(AbstractAutowireCapableBeanFactory.java:1577) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1536) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1276) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ... 38 more Caused by: java.lang.IllegalArgumentException: Could not resolve resource location pattern [classpath:com/saicmotor/dam/mapping/*.xml]: class path resource [com/saicmotor/dam/mapping/] cannot be resolved to URL because it does not exist at org.springframework.core.io.support.ResourceArrayPropertyEditor.setAsText(ResourceArrayPropertyEditor.java:116) at org.springframework.beans.TypeConverterDelegate.doConvertTextValue(TypeConverterDelegate.java:468) at org.springframework.beans.TypeConverterDelegate.doConvertValue(TypeConverterDelegate.java:441) at org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:199) at org.springframework.beans.AbstractNestablePropertyAccessor.convertIfNecessary(AbstractNestablePropertyAccessor.java:588) ... 44 more

比如我的mybatis是3.4.6，那么我应该去哪里查找mybatis-spring是用什么版本，再就是spring是用什么版本，以及我需要的一些其他的jar该是什么版本，有哪个地方可以查询的吗 请教各位大佬

项目中同时使用了mybatis plus和mybatis的分页插件，现在mybatis plus分页结果total返回0，请问如何在兼容两种分页的情况下解决这个冲突问题？ mybatis： ``` <!--分页插件 pagehelper --> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.2.3</version> <exclusions> <exclusion> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> </exclusion> <exclusion> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> </exclusion> <exclusion> <artifactId>jsqlparser</artifactId> <groupId>com.github.jsqlparser</groupId> </exclusion> </exclusions> </dependency> ``` mybatis plus： ``` <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatisplus-spring-boot-starter</artifactId> <version>${mybatisplus.spring.boot.version}</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus</artifactId> <version>${mybatisplus.version}</version> </dependency> ``` ``` @Configuration public class MybatisPlusConfig { /** * 分页插件 */ @Bean public PaginationInterceptor paginationInterceptor() { return new PaginationInterceptor(); } } ``` 依赖冲突检查（没有冲突）：   mybatis plus分页代码（代码随便写的，还没有优化）：  

``` <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd"> <context:property-placeholder location="classpath:config.properties" /> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" > <!-- <property name="driverClassName" value="com.mysql.jdbc.Driver" /> --> <!-- <property name="url" value="jdbc:mysql://localhost:3306/test?useUnicode=true&amp;characterEncoding=UTF-8" /> --> <!-- <property name="username" value="root" /> --> <!-- <property name="password" value="root" /> --> <property name="driverClassName" value="${driverClassName}" /> <property name="url" value="${url}" /> <property name="username" value="${username}" /> <property name="password" value="${password}" /> </bean> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> <property name="mapperLocations" value="org/mydemo/mapper/*.xml"></property> </bean> <bean id="sqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg ref="sqlSessionFactory" /> </bean> </beans> ``` 把注释解掉他就能正常， 好多人说是因为sqlSessionFactory在context:property-placeholder之前已经加载了 所以driverClassName是空，请问代码该怎么改呢？

问题描述：springboot小白，在test文件夹测试集成mybatis效果，然后就报错了。。  我是用的application.properties配置  . * 1. **org.springframework.beans.factory.UnsatisfiedDependencyException**: Error creating bean with name 'userDAO' defined in file [E:\谷歌下载\project\target\classes\com\nowcoder\project\dao\UserDAO.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1362) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1254) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) ~[spring-boot-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) ~[spring-boot-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:121) [spring-boot-test-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:189) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:131) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206) [.cp/:na] Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1178) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1072) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1136) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1064) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1347) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 41 common frames omitted Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 53 common frames omitted Caused by: org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:499) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:381) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:546) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration.sqlSessionFactory(MybatisAutoConfiguration.java:130) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$64717f8a.CGLIB$sqlSessionFactory$1(<generated>) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$64717f8a$$FastClassBySpringCGLIB$$d7d646be.invoke(<generated>) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) ~[spring-context-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$64717f8a.sqlSessionFactory(<generated>) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_201] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_201] at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_201] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 54 common frames omitted Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:117) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:95) ~[mybatis-3.4.0.jar:3.4.0] at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:493) ~[mybatis-spring-1.3.0.jar:1.3.0] ... 67 common frames omitted Caused by: java.io.IOException: Could not find resource jdbc.properties at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.io.Resources.getResourceAsProperties(Resources.java:128) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.builder.xml.XMLConfigBuilder.propertiesElement(XMLConfigBuilder.java:219) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:103) ~[mybatis-3.4.0.jar:3.4.0] ... 69 common frames omitted 2019-03-07 22:41:26.244 ERROR 7428 --- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.test.context.web.ServletTestExecutionListener@78ac1102] to prepare test instance [com.nowcoder.project.InitDatabaseTests@b887730] java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:83) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:189) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:131) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:230) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:228) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:287) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:289) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:247) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:94) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12] at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12] at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:191) [spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460) [.cp/:na] at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206) [.cp/:na] Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDAO' defined in file [E:\谷歌下载\project\target\classes\com\nowcoder\project\dao\UserDAO.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1362) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1254) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:551) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) ~[spring-boot-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) ~[spring-boot-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) ~[spring-boot-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:121) ~[spring-boot-test-1.5.19.RELEASE.jar:1.5.19.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:98) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:116) ~[spring-test-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 25 common frames omitted Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1178) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1072) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:511) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:481) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1136) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1064) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireByType(AbstractAutowireCapableBeanFactory.java:1347) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 41 common frames omitted Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: Factory method 'sqlSessionFactory' threw exception; nested exception is org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 53 common frames omitted Caused by: org.springframework.core.NestedIOException: Failed to parse config resource: class path resource [mybatis-config.xml]; nested exception is org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:499) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.SqlSessionFactoryBean.afterPropertiesSet(SqlSessionFactoryBean.java:381) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.SqlSessionFactoryBean.getObject(SqlSessionFactoryBean.java:546) ~[mybatis-spring-1.3.0.jar:1.3.0] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration.sqlSessionFactory(MybatisAutoConfiguration.java:130) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$64717f8a.CGLIB$sqlSessionFactory$1(<generated>) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$64717f8a$$FastClassBySpringCGLIB$$d7d646be.invoke(<generated>) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) ~[spring-core-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358) ~[spring-context-4.3.22.RELEASE.jar:4.3.22.RELEASE] at org.mybatis.spring.boot.autoconfigure.MybatisAutoConfiguration$$EnhancerBySpringCGLIB$$64717f8a.sqlSessionFactory(<generated>) ~[mybatis-spring-boot-autoconfigure-1.1.1.jar:1.1.1] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_201] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_201] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_201] at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_201] at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162) ~[spring-beans-4.3.22.RELEASE.jar:4.3.22.RELEASE] ... 54 common frames omitted Caused by: org.apache.ibatis.builder.BuilderException: Error parsing SQL Mapper Configuration. Cause: java.io.IOException: Could not find resource jdbc.properties at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:117) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.builder.xml.XMLConfigBuilder.parse(XMLConfigBuilder.java:95) ~[mybatis-3.4.0.jar:3.4.0] at org.mybatis.spring.SqlSessionFactoryBean.buildSqlSessionFactory(SqlSessionFactoryBean.java:493) ~[mybatis-spring-1.3.0.jar:1.3.0] ... 67 common frames omitted Caused by: java.io.IOException: Could not find resource jdbc.properties at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:114) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.io.Resources.getResourceAsStream(Resources.java:100) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.io.Resources.getResourceAsProperties(Resources.java:128) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.builder.xml.XMLConfigBuilder.propertiesElement(XMLConfigBuilder.java:219) ~[mybatis-3.4.0.jar:3.4.0] at org.apache.ibatis.builder.xml.XMLConfigBuilder.parseConfiguration(XMLConfigBuilder.java:103) ~[mybatis-3.4.0.jar:3.4.0] ... 69 common frames omitted

今年，我也32了 ，为了不给大家误导，咨询了猎头、圈内好友，以及年过35岁的几位老程序员……舍了老脸去揭人家伤疤……希望能给大家以帮助，记得帮我点赞哦。 目录： 你以为的人生 一次又一次的伤害 猎头界的真相 如何应对互联网行业的「中年危机」 一、你以为的人生 刚入行时，拿着傲人的工资，想着好好干，以为我们的人生是这样的： 等真到了那一天，你会发现，你的人生很可能是这样的： ...

程序员在一个周末的时间，得了重病，差点当场去世，还好及时挽救回来了。

互联网公司工作，很难避免不和黑客们打交道，我呆过的两家互联网公司，几乎每月每天每分钟都有黑客在公司网站上扫描。有的是寻找 Sql 注入的缺口，有的是寻找线上服务器可能存在的漏洞，大部分都...

故事总是一个接着一个到来...上周写完《鲁大师已经彻底沦为一款垃圾流氓软件！》这篇文章之后，鲁大师的市场工作人员就找到了我，希望把这篇文章删除掉。经过一番沟通我先把这篇文章从公号中删除了...

原博客再更新，可能就没了，之后将持续更新本篇博客。

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...

文章目录数据库基础知识为什么要使用数据库什么是SQL？什么是MySQL?数据库三大范式是什么mysql有关权限的表都有哪几个MySQL的binlog有有几种录入格式？分别有什么区别？数据类型mysql有哪些数据类型引擎MySQL存储引擎MyISAM与InnoDB区别MyISAM索引与InnoDB索引的区别？InnoDB引擎的4大特性存储引擎选择索引什么是索引？索引有哪些优缺点？索引使用场景（重点）...

有个好朋友ZS，是技术总监，昨天问我：“有一个老下属，跟了我很多年，做事勤勤恳恳，主动性也很好。但随着公司的发展，他的进步速度，跟不上团队的步伐了，有点...

私下里，有不少读者问我：“二哥，如何才能写出一份专业的技术简历呢？我总感觉自己写的简历太烂了，所以投了无数份，都石沉大海了。”说实话，我自己好多年没有写过简历了，但我认识的一个同行，他在阿里，给我说了一些他当年写简历的方法论，我感觉太牛逼了，实在是忍不住，就分享了出来，希望能够帮助到你。 01、简历的本质 作为简历的撰写者，你必须要搞清楚一点，简历的本质是什么，它就是为了来销售你的价值主张的。往深...

场景 日常开发，if-else语句写的不少吧？？当逻辑分支非常多的时候，if-else套了一层又一层，虽然业务功能倒是实现了，但是看起来是真的很不优雅，尤其是对于我这种有强迫症的程序"猿"，看到这么多if-else，脑袋瓜子就嗡嗡的，总想着解锁新姿势：干掉过多的if-else！！！本文将介绍三板斧手段： 优先判断条件，条件不满足的，逻辑及时中断返回； 采用策略模式+工厂模式； 结合注解，锦...

有小伙伴问松哥这个问题，他在上海某公司，在离职了几个月后，前公司的领导联系到他，希望他能够返聘回去，他很纠结要不要回去？ 俗话说好马不吃回头草，但是这个小伙伴既然感到纠结了，我觉得至少说明了两个问题：1.曾经的公司还不错；2.现在的日子也不是很如意。否则应该就不会纠结了。 老实说，松哥之前也有过类似的经历，今天就来和小伙伴们聊聊回头草到底吃不吃。 首先一个基本观点，就是离职了也没必要和老东家弄的苦...

阿里巴巴全球数学竞赛（ Alibaba Global Mathematics Competition）由马云发起，由中国科学技术协会、阿里巴巴基金会、阿里巴巴达摩院共同举办。大赛不设报名门槛，全世界爱好数学的人都可参与，不论是否出身数学专业、是否投身数学研究。 2020年阿里巴巴达摩院邀请北京大学、剑桥大学、浙江大学等高校的顶尖数学教师组建了出题组。中科院院士、美国艺术与科学院院士、北京国际数学...

往往，我们看不进去大段大段的逻辑。深刻的哲理，往往短而精悍，一阵见血。问：产品经理挺漂亮的，有点心动，但不知道合不合得来。男生更看重女生的身材脸蛋，还是...

本文作者用对比非常鲜明的两个开发团队的故事，讲解了敏捷开发之道 —— 如果你的团队缺乏统一标准的环境，那么即使勤劳努力，不仅会极其耗时而且成果甚微，使用...

二哥，有个事想询问下您的意见，您觉得应届生值得去外包吗？公司虽然挺大的，中xx，但待遇感觉挺低，马上要报到，挺纠结的。

当HR压你价，说你只值7K时，你可以流畅地回答，记住，是流畅，不能犹豫。 礼貌地说：“7K是吗？了解了。嗯~其实我对贵司的面试官印象很好。只不过，现在我的手头上已经有一份11K的offer。来面试，主要也是自己对贵司挺有兴趣的，所以过来看看……”（未完） 这段话主要是陪HR互诈的同时，从公司兴趣，公司职员印象上，都给予对方正面的肯定，既能提升HR的好感度，又能让谈判气氛融洽，为后面的发挥留足空间。...

HashMap底层实现原理，红黑树，B+树，B树的结构原理 Spring的AOP和IOC是什么？它们常见的使用场景有哪些？Spring事务，事务的属性，传播行为，数据库隔离级别 Spring和SpringMVC，MyBatis以及SpringBoot的注解分别有哪些？SpringMVC的工作原理，SpringBoot框架的优点，MyBatis框架的优点 SpringCould组件有哪些，他们...

面试阿里p7被问到的问题(当时我只知道第一个)：@Conditional是做什么的?@Conditional多个条件是什么逻辑关系？条件判断在什么时候执...

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。

说实话，自己的算法，我一个不会，太难了吧

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...

正确选择比瞎努力更重要！

正确选择比瞎努力更重要！

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...

轻松等回家通知

大厂竟然要考我SSO，卧槽。

他可能没想到，我当场手写出来了

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...

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...

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...