求解HTTP Status 500 – Internal Server Error

最新推荐文章于 2025-06-26 15:13:02 发布
最新推荐文章于 2025-06-26 15:13:02 发布
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本文链接：https://blog.youkuaiyun.com/qq_41449899/article/details/89406148
本文详细分析了HTTP状态500错误中关于Spring框架下MySQL驱动加载失败的问题，包括异常堆栈跟踪，涉及的XML配置文件，SQL语句检查，以及JDBC驱动类加载异常的具体原因。

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HTTP Status 500 – Internal Server Error

Type Exception Report

Message Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: SqlMapClient operation; uncategorized SQLException for SQL []; SQL state [null]; error code [0];

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: SqlMapClient operation; uncategorized SQLException for SQL []; SQL state [null]; error code [0];   
--- The error occurred in sqlMap/User.xml.  
--- The error occurred while executing query.  
--- Check the          select * from t_user where uname=? and upwd=?     .  
--- Check the SQL Statement (preparation failed).  
--- Cause: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.cj.jdbc.Driver'; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException:   
--- The error occurred in sqlMap/User.xml.  
--- The error occurred while executing query.  
--- Check the          select * from t_user where uname=? and upwd=?     .  
--- Check the SQL Statement (preparation failed).  
--- Cause: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.cj.jdbc.Driver'
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:656)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

Root Cause

org.springframework.jdbc.UncategorizedSQLException: SqlMapClient operation; uncategorized SQLException for SQL []; SQL state [null]; error code [0];   
--- The error occurred in sqlMap/User.xml.  
--- The error occurred while executing query.  
--- Check the          select * from t_user where uname=? and upwd=?     .  
--- Check the SQL Statement (preparation failed).  
--- Cause: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.cj.jdbc.Driver'; nested exception is com.ibatis.common.jdbc.exception.NestedSQLException:   
--- The error occurred in sqlMap/User.xml.  
--- The error occurred while executing query.  
--- Check the          select * from t_user where uname=? and upwd=?     .  
--- Check the SQL Statement (preparation failed).  
--- Cause: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.cj.jdbc.Driver'
	org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:83)
	org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)
	org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:203)
	org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:268)
	com.archie.dao.UserDao.getUserByUnameUpwd(UserDao.java:84)
	com.archie.service.UserService.login(UserService.java:29)
	com.archie.web.UserController.login(UserController.java:55)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	java.lang.reflect.Method.invoke(Unknown Source)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:427)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:415)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:788)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

Root Cause

com.ibatis.common.jdbc.exception.NestedSQLException:   
--- The error occurred in sqlMap/User.xml.  
--- The error occurred while executing query.  
--- Check the          select * from t_user where uname=? and upwd=?     .  
--- Check the SQL Statement (preparation failed).  
--- Cause: org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.cj.jdbc.Driver'
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:201)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForObject(MappedStatement.java:120)
	com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:518)
	com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:493)
	com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
	org.springframework.orm.ibatis.SqlMapClientTemplate$1.doInSqlMapClient(SqlMapClientTemplate.java:270)
	org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:200)
	org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:268)
	com.archie.dao.UserDao.getUserByUnameUpwd(UserDao.java:84)
	com.archie.service.UserService.login(UserService.java:29)
	com.archie.web.UserController.login(UserController.java:55)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	java.lang.reflect.Method.invoke(Unknown Source)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:427)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:415)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:788)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

Root Cause

org.apache.commons.dbcp.SQLNestedException: Cannot load JDBC driver class 'com.mysql.cj.jdbc.Driver'
	org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1136)
	org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
	org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
	org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:214)
	com.sun.proxy.$Proxy39.prepareStatement(Unknown Source)
	com.ibatis.sqlmap.engine.execution.SqlExecutor.prepareStatement(SqlExecutor.java:497)
	com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:175)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForObject(MappedStatement.java:120)
	com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:518)
	com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:493)
	com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
	org.springframework.orm.ibatis.SqlMapClientTemplate$1.doInSqlMapClient(SqlMapClientTemplate.java:270)
	org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:200)
	org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:268)
	com.archie.dao.UserDao.getUserByUnameUpwd(UserDao.java:84)
	com.archie.service.UserService.login(UserService.java:29)
	com.archie.web.UserController.login(UserController.java:55)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	java.lang.reflect.Method.invoke(Unknown Source)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:427)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:415)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:788)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

Root Cause

java.lang.ClassNotFoundException: com.mysql.cj.jdbc.Driver
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1344)
	org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1172)
	java.lang.Class.forName0(Native Method)
	java.lang.Class.forName(Unknown Source)
	org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1130)
	org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:880)
	org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111)
	org.springframework.jdbc.datasource.TransactionAwareDataSourceProxy$TransactionAwareInvocationHandler.invoke(TransactionAwareDataSourceProxy.java:214)
	com.sun.proxy.$Proxy39.prepareStatement(Unknown Source)
	com.ibatis.sqlmap.engine.execution.SqlExecutor.prepareStatement(SqlExecutor.java:497)
	com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:175)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.sqlExecuteQuery(MappedStatement.java:221)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryWithCallback(MappedStatement.java:189)
	com.ibatis.sqlmap.engine.mapping.statement.MappedStatement.executeQueryForObject(MappedStatement.java:120)
	com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:518)
	com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:493)
	com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
	org.springframework.orm.ibatis.SqlMapClientTemplate$1.doInSqlMapClient(SqlMapClientTemplate.java:270)
	org.springframework.orm.ibatis.SqlMapClientTemplate.execute(SqlMapClientTemplate.java:200)
	org.springframework.orm.ibatis.SqlMapClientTemplate.queryForObject(SqlMapClientTemplate.java:268)
	com.archie.dao.UserDao.getUserByUnameUpwd(UserDao.java:84)
	com.archie.service.UserService.login(UserService.java:29)
	com.archie.web.UserController.login(UserController.java:55)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	java.lang.reflect.Method.invoke(Unknown Source)
	org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:427)
	org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:415)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:788)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:717)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
	org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:661)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

Note The full stack trace of the root cause is available in the server logs.

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