MybatisPlus BaseMapper 中的方法全部 Invalid bound statement (not found Error处理)
作者:一介遗石
错误梗概
接手了一个新任务,需要修改别人的代码。看看数据库配置 ,连连接池都没,然后引入了 druid,本来一切很顺利。后来不知道怎么回事,运行起来后总是报 “Invalid bound statement (not found) ”,而且报错的都是 MybatisPlus 生成的 BaseMapper 中的方法,自己写的都能正常运行。
参考了很多其他帖子,都无果,最后弄了很久,终于搞定了,特级录之。
druid 和 mybatis-plus 配置参数如下:
pom.xml
<dependency> <groupId>com.alibaba</groupId> <artifactId>druid-spring-boot-starter</artifactId> <version>1.1.10</version> </dependency> <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>3.2.0</version> </dependency> <dependency> <groupId>com.github.pagehelper</groupId> <artifactId>pagehelper-spring-boot-starter</artifactId> <version>1.2.13</version> <exclusions> <exclusion> <artifactId>jsqlparser</artifactId> <groupId>com.github.jsqlparser</groupId> </exclusion> <exclusion> <artifactId>mybatis-spring</artifactId> <groupId>org.mybatis</groupId> </exclusion> </exclusions> </dependency>
application.properties
######################################################### MybatisPlus 配置 mybatis-plus.mapper-locations=classpath:mapper/*.xml mybatis-plus.type-aliases-package=com.yishi.entity mybatis-plus.global-config.db-config.table-underline=true mybatis-plus.global-config.banner=false mybatis-plus.configuration.map-underscore-to-camel-case=true mybatis-plus.configuration.jdbc-type-for-null=NULL mybatis-plus.configuration.auto-mapping-behavior=FULL ######################################################### druid 配置 spring.datasource.type=com.alibaba.druid.pool.DruidDataSource # 参考 https://github.com/alibaba/druid/tree/master/druid-spring-boot-starter #################################### JDBC 配置 spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver spring.datasource.druid.url=${mysql.url} spring.datasource.druid.username=${mysql.username} spring.datasource.druid.password=${mysql.password} #################################### 连接池配置 # 初始化大小,最小,最大 spring.datasource.druid.initial-size=10 spring.datasource.druid.max-active=500 spring.datasource.druid.min-idle=5 # 配置获取连接等待超时的时间 spring.datasource.druid.max-wait=60000 # 打开PSCache,并且指定每个连接上PSCache的大小 spring.datasource.druid.pool-prepared-statements=true spring.datasource.druid.max-pool-prepared-statement-per-connection-size=20 #spring.datasource.druid.max-open-prepared-statements= #和上面的等价 #spring.datasource.druid.validation-query= #spring.datasource.druid.validation-query-timeout= spring.datasource.druid.test-on-borrow=false spring.datasource.druid.test-on-return=false spring.datasource.druid.test-while-idle=true # 配置间隔多久才进行一次检测,检测需要关闭的空闲连接,单位是毫秒 spring.datasource.druid.time-between-eviction-runs-millis=60000 # 配置一个连接在池中最小生存的时间,单位是毫秒 spring.datasource.druid.min-evictable-idle-time-millis=300000 #spring.datasource.druid.max-evictable-idle-time-millis= # 配置监控统计拦截的filters,去掉后监控界面sql无法统计,'wall'用于防火墙 spring.datasource.druid.filters=stat,wall,log4j spring.datasource.druid.validation-query=SELECT 1 FROM DUAL # 通过connectProperties属性来打开mergeSql功能;慢SQL记录 spring.datasource.druid.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000 #################################### 监控配置 # WebStatFilter配置,说明请参考Druid Wiki,配置_配置WebStatFilter spring.datasource.druid.web-stat-filter.enabled=true spring.datasource.druid.web-stat-filter.url-pattern=/* spring.datasource.druid.web-stat-filter.exclusions=/druid/*,*.js,*.gif,*.jpg,*.bmp,*.png,*.css,*.ico spring.datasource.druid.web-stat-filter.session-stat-enable=true spring.datasource.druid.web-stat-filter.session-stat-max-count=10 #spring.datasource.druid.web-stat-filter.principal-session-name= #spring.datasource.druid.web-stat-filter.principal-cookie-name= #spring.datasource.druid.web-stat-filter.profile-enable= # StatViewServlet配置,说明请参考Druid Wiki,配置_StatViewServlet配置 spring.datasource.druid.stat-view-servlet.enabled=true spring.datasource.druid.stat-view-servlet.url-pattern=/druid/* spring.datasource.druid.stat-view-servlet.reset-enable=true spring.datasource.druid.stat-view-servlet.login-username=admin spring.datasource.druid.stat-view-servlet.login-password=admin #spring.datasource.druid.stat-view-servlet.allow= #spring.datasource.druid.stat-view-servlet.deny=
DruidDataSourceProperties
package com.yishi.config; import org.springframework.boot.context.properties.ConfigurationProperties; @ConfigurationProperties(prefix = "spring.datasource.druid") public class DruidDataSourceProperties { private String driverClassName; private String url; private String username; private String password; private int initialSize; private int minIdle; private int maxActive; private long maxWait; private long timeBetweenEvictionRunsMillis; private long minEvictableIdleTimeMillis; private String validationQuery; private boolean testWhileIdle; private boolean testOnBorrow; private boolean testOnReturn; private boolean poolPreparedStatements; private int maxPoolPreparedStatementPerConnectionSize; private String filters; private String connectionProperties; // 省略 get、set 方法 }
MysqlDruidConfiguration
package com.yishi.config; import com.alibaba.druid.pool.DruidDataSource; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.annotation.MapperScan; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.boot.context.properties.EnableConfigurationProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.context.annotation.Primary; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.datasource.DataSourceTransactionManager; import javax.sql.DataSource; import java.sql.SQLException; @Configuration @EnableConfigurationProperties({DruidDataSourceProperties.class}) @MapperScan(value = MysqlDruidConfiguration.PACKAGE, sqlSessionFactoryRef = "mysqlSqlSessionFactory") public class MysqlDruidConfiguration { static final String PACKAGE = "com.yishi.dao"; static final String MAPPER_LOCATION = "classpath:mapper/*.xml"; @Autowired private DruidDataSourceProperties properties; @Bean(name = "mysqlDataSource") @Primary public DataSource mysqlDataSource() { DruidDataSource druidDataSource = new DruidDataSource(); druidDataSource.setDriverClassName(properties.getDriverClassName()); druidDataSource.setUrl(properties.getUrl()); druidDataSource.setUsername(properties.getUsername()); druidDataSource.setPassword(properties.getPassword()); druidDataSource.setInitialSize(properties.getInitialSize()); druidDataSource.setMinIdle(properties.getMinIdle()); druidDataSource.setMaxActive(properties.getMaxActive()); druidDataSource.setMaxWait(properties.getMaxWait()); druidDataSource.setTimeBetweenEvictionRunsMillis(properties.getTimeBetweenEvictionRunsMillis()); druidDataSource.setMinEvictableIdleTimeMillis(properties.getMinEvictableIdleTimeMillis()); druidDataSource.setValidationQuery(properties.getValidationQuery()); druidDataSource.setTestWhileIdle(properties.isTestWhileIdle()); druidDataSource.setTestOnBorrow(properties.isTestOnBorrow()); druidDataSource.setTestOnReturn(properties.isTestOnReturn()); druidDataSource.setPoolPreparedStatements(properties.isPoolPreparedStatements()); druidDataSource.setMaxPoolPreparedStatementPerConnectionSize(properties.getMaxPoolPreparedStatementPerConnectionSize()); druidDataSource.setConnectionProperties(properties.getConnectionProperties()); try { druidDataSource.setFilters(properties.getFilters()); druidDataSource.init(); } catch (SQLException e) { e.printStackTrace(); } return druidDataSource; } @Bean(name = "mysqlTransactionManager") @Primary public DataSourceTransactionManager mysqlTransactionManager() { return new DataSourceTransactionManager(mysqlDataSource()); } @Bean(name = "mysqlSqlSessionFactory") @Primary public SqlSessionFactory mysqlSqlSessionFactory(@Qualifier("mysqlDataSource") DataSource mysqlDataSource) throws Exception { final SqlSessionFactoryBean sessionFactory = new SqlSessionFactoryBean(); sessionFactory.setDataSource(mysqlDataSource); sessionFactory.setMapperLocations( new PathMatchingResourcePatternResolver().getResources(MysqlDruidConfiguration.MAPPER_LOCATION)); return sessionFactory.getObject(); } @Bean(name = "mysqlJdbcTemplate") public JdbcTemplate hiveJdbcTemplate(@Qualifier("mysqlDataSource") DataSource dataSource) { return new JdbcTemplate(dataSource); } }
开发环境
IDEA 2020.2
Apache Maven 3.2.5
主要库版本:
org.springframework.boot.spring-boot-dependencies.2.1.1.RELEASE
com.baomidou.mybatis-plus-boot-starter.3.2.0
com.alibaba.druid-spring-boot-starter.1.1.10
异常信息
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.yishi.dao.UserDao.selectList at org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:235) at org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:53) at org.apache.ibatis.binding.MapperProxy.lambda$cachedMapperMethod$0(MapperProxy.java:98) at java.util.concurrent.ConcurrentHashMap.computeIfAbsent(ConcurrentHashMap.java:1660) at org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:97) at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:92) at com.sun.proxy.$Proxy105.selectList(Unknown Source) at com.yishi.impl.UserServiceImpl.insert(UserServiceImpl.java:104) at com.yishi.impl.UserServiceImpl.insert(UserServiceImpl.java:39) at com.yishi.impl.UserServiceImpl$$FastClassBySpringCGLIB$$ac0e5ea9.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:749) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:294) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:98) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) at com.yishi.impl.UserServiceImpl$$EnhancerBySpringCGLIB$$c9a67874.insert(<generated>) at com.yishi.controller.UserController.add(UserController.java:20) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:189) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:102) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:800) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1038) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908) at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)
解决方式
一开始没打开 Debug 日志,导致很多 Debug 的信息都没法及时捕获,打开 Debug 日志后,WARN 如下:
2020-09-01 10:02:15 [restartedMain] WARN o.m.s.m.ClassPathMapperScanner - Skipping MapperFactoryBean with name 'userDao' and 'com.yishi.dao.UserDao' mapperInterface. Bean already defined with the same name!
...
2020-09-01 10:02:15 [restartedMain] WARN o.m.s.m.ClassPathMapperScanner - No MyBatis mapper was found in '[com.yishi.dao]' package. Please check your configuration.
可以看到,在注入 dao 时说已经存在了,难怪 Mybatis-Plus 生成的 BaseMapper 所有方法报错,压根就没注入。那什么地方先注入了呢?看来看去,原来是在 MysqlDruidConfiguration.java 这个类在自动配置时配置 “mysqlSqlSessionFactory” 这个 bean 时已经先注入 dao 相关的信息!
最后解决方式,删掉 MysqlDruidConfiguration.java 和 DruidDataSourceProperties.java这两个类,springboot 都已经帮我们处理了 druid 的配置,其实这两个类也没什么用。
总结
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