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這個有人遇到嗎?classnotfound com.mysql.jdbc.Driver

嚴重: Servlet.service() for servlet [spring-mvc] in context with path [/HuaweiClub] threw exception [Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:?

### Error querying database. ?Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver ?'

### The error may exist in file [C:\Users\lz\Marsworkspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp1\wtpwebapps\HuaweiClub\WEB-INF\classes\modules\mapping\userDao.xml]

### The error may involve com.lz.test.dao.UserDao.get

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver ?'] with root cause

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver ?

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1720)

at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Unknown Source)

at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1130)

at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)

at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)

at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77)

at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:81)

at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:67)

at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:279)

at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:72)

at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:59)

at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267)

at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137)

at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:96)

at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:77)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102)

at org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:66)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)

at com.sun.proxy.$Proxy10.selectOne(Unknown Source)

at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:163)

at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68)

at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)

at com.sun.proxy.$Proxy16.get(Unknown Source)

at com.lz.test.service.UserService.get(UserService.java:16)

at com.lz.test.web.UserController.test(UserController.java:19)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)

at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)

at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:749)

at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)

at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:938)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:870)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:961)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:852)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:837)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)

at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)

at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)

at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)

at java.lang.Thread.run(Unknown Source)


正在回答

1 回答

<!--添加連接Mysql所需要的依賴-->
<dependency>
??<groupId>mysql</groupId>
??<artifactId>mysql-connector-java</artifactId>
??<version>5.1.35</version>
??<scope>runtime</scope>
</dependency>


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這個有人遇到嗎?classnotfound com.mysql.jdbc.Driver

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