HTTP Status 500 – Internal Server Error是什么原因学生信息管理系统的

图片说明图片说明

数据库的导入是不是有问题啊,圈起来的地方是灰色的图片说明而且浏览器运行500

3个回答

根据报错来讲,应该是数据库连接有问题,导致connect为空,此时你可以测试一下你的项目是不是可以连接上数据库,还望采纳,谢谢。

应该是密码错误,可以重新试一试

红圈标出来的代码语法没有问题,报空指针异常的那一行看看是用了哪个对象了。

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我使用eclipse运行login时,传输数据出现HTTP Status 500 – Internal Server Error问题,请问这个怎么解决?

![图片说明](https://img-ask.csdn.net/upload/201912/18/1576647408_973159.jpg) ``` 控制器代码: String uname=request.getParameter("uname"); String upsw=request.getParameter("upsw"); if(uname!=null&&uname!=""){ SqlHelper daoTemp=new SqlHelper(); if(daoTemp.loginCheck(uname, upsw)) response.sendRedirect("/bsWeb/admin/Index.jsp"); else { String msg="登录失败!"; request.setAttribute("msg", msg); request.getRequestDispatcher("/Login/Login.jsp").forward(request, response); } } } 前台代码: <body> <% String msg=(String)request.getAttribute("msg"); if(msg!=null&&msg!="") out.print("<script>alert('"+msg+"')</script>"); %> <form action="/bsWeb/LoginCheck" method="post"> <div class="main"> <div class="mainin"> <h1>&nbsp;</h1> <div class="mainin1"> <ul> <li> <span>用户名:</span><input id="Text1" type="text" class="SearchKeyword" name="uname" /> </li> <li> <span>密码:</span><input id="Text1" type="text" class="SearchKeyword2" name="upwd" /> </li> <li> <input id="Button1" type="submit" class="tijiao" value="登录" /> </li> </ul> </div> </div> </div> </form> </body> 服务器代码: public class SqlHelper { String dbDriver="com.mysql.jdbc.Driver"; String url="jdbc:mysql://localhost:3306/bsweb?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC&useSSL=false"; String dbuser="root"; String dbpsw=""; Connection conn; Statement stmt; ResultSet rs; //HttpSession session; public SqlHelper(){ } public CachedRowSetImpl getDataCache(String sql) { CachedRowSetImpl crTemp=null; try{ crTemp=new CachedRowSetImpl(); Class.forName(dbDriver); conn=DriverManager.getConnection(url,dbuser,dbpsw); stmt=conn.createStatement(); rs=stmt.executeQuery(sql); crTemp.populate(rs); }catch(Exception ex){ ex.printStackTrace(); }finally{ try { conn.close(); } catch (SQLException e) { e.printStackTrace(); } } return crTemp; } public Result getData(String sql){ Result rsTemp=null; try{ Class.forName(dbDriver); conn=DriverManager.getConnection(url,dbuser,dbpsw); stmt=conn.createStatement(); rs=stmt.executeQuery(sql); rsTemp=ResultSupport.toResult(rs); }catch(Exception e){ e.printStackTrace(); }finally{ try{ stmt.close(); conn.close(); }catch(Exception eOne){ eOne.printStackTrace(); } } return rsTemp; } public int userExecuteScalar(String sql){ int result=0; try{ Class.forName(dbDriver); conn=DriverManager.getConnection(url,dbuser,dbpsw); stmt=conn.createStatement(); result=stmt.executeUpdate(sql); }catch(Exception e){ e.printStackTrace(); }finally{ try{ stmt.close(); conn.close(); }catch(Exception eOne){ eOne.printStackTrace(); } } return result; } public boolean loginCheck(String uname,String upwd){ int count=0; String sql="select count(*) from admin where uname=? and upwd=?"; try{ Class.forName(dbDriver); conn=DriverManager.getConnection(url,dbuser,dbpsw); PreparedStatement preStmt=conn.prepareStatement(sql); preStmt.setString(1,uname); preStmt.setString(2,upwd); rs=preStmt.executeQuery(); while(rs.next()) count=rs.getInt(1); if(count>0) return true; }catch(Exception e){ e.printStackTrace(); }finally{ try{ stmt.close(); conn.close(); }catch(Exception eOne){ eOne.printStackTrace(); } } return false; } ```

HTTP Status 500 – Internal Server Error

Type Exception Report Message java.lang.NullPointerException Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception org.apache.jasper.JasperException: java.lang.NullPointerException org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:601) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:481) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:91) Root Cause java.lang.NullPointerException org.apache.struts2.components.UIBean.evaluateParams(UIBean.java:827) org.apache.struts2.components.UIBean.end(UIBean.java:535) org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:42) org.apache.jsp.index_jsp._jspx_meth_s_005ftextfield_005f0(index_jsp.java:278) org.apache.jsp.index_jsp._jspx_meth_s_005fform_005f0(index_jsp.java:228) org.apache.jsp.index_jsp._jspService(index_jsp.java:163) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.apache.struts2.dispatcher.ng.filter.StrutsPrepareFilter.doFilter(StrutsPrepareFilter.java:91) Note The full stack trace of the root cause is available in the server logs. Apache Tomcat/8.5.13

运行tomcat 提示错误信息HTTP Status 500 – Internal Server Error?

怎样解决下列错误啊,求各位大神指教!!!! [图片说明](https://img-ask.csdn.net/upload/201812/26/1545789119_137252.jpg)

boot客户管理系统登录报错HTTP Status 500 – Internal Server Error

HTTP Status 500 – Internal Server Error Type 异常报告 消息 Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 描述 服务器遇到一个意外的情况,阻止它完成请求。 Exception org.springframework.web.util.NestedServletException: 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 java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) ### The error may exist in com/ssm/core/dao/UserDao.xml ### The error may involve com.ssm.core.dao.UserDao.findUser ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) javax.servlet.http.HttpServlet.service(HttpServlet.java:660) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) Root Cause 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 java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) ### The error may exist in com/ssm/core/dao/UserDao.xml ### The error may involve com.ssm.core.dao.UserDao.findUser ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446) com.sun.proxy.$Proxy16.selectOne(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) com.sun.proxy.$Proxy22.findUser(Unknown Source) com.ssm.core.service.impl.UserServiceImpl.findUser(UserServiceImpl.java:21) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) com.sun.proxy.$Proxy23.findUser(Unknown Source) com.ssm.core.web.controller.UserController.login(UserController.java:28) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) javax.servlet.http.HttpServlet.service(HttpServlet.java:660) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) Root Cause org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) ### The error may exist in com/ssm/core/dao/UserDao.xml ### The error may involve com.ssm.core.dao.UserDao.findUser ### The error occurred while executing a query ### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:150) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) com.sun.proxy.$Proxy16.selectOne(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) com.sun.proxy.$Proxy22.findUser(Unknown Source) com.ssm.core.service.impl.UserServiceImpl.findUser(UserServiceImpl.java:21) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) com.sun.proxy.$Proxy23.findUser(Unknown Source) com.ssm.core.web.controller.UserController.login(UserController.java:28) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) javax.servlet.http.HttpServlet.service(HttpServlet.java:660) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) Root Cause org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:80) org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336) org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) com.sun.proxy.$Proxy16.selectOne(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) com.sun.proxy.$Proxy22.findUser(Unknown Source) com.ssm.core.service.impl.UserServiceImpl.findUser(UserServiceImpl.java:21) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) com.sun.proxy.$Proxy23.findUser(Unknown Source) com.ssm.core.web.controller.UserController.login(UserController.java:28) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) javax.servlet.http.HttpServlet.service(HttpServlet.java:660) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) Root Cause java.sql.SQLException: Cannot create PoolableConnectionFactory (Access denied for user 'root'@'localhost' (using password: YES)) org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2294) org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039) org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1533) org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336) org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) com.sun.proxy.$Proxy16.selectOne(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) com.sun.proxy.$Proxy22.findUser(Unknown Source) com.ssm.core.service.impl.UserServiceImpl.findUser(UserServiceImpl.java:21) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) com.sun.proxy.$Proxy23.findUser(Unknown Source) com.ssm.core.web.controller.UserController.login(UserController.java:28) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) javax.servlet.http.HttpServlet.service(HttpServlet.java:660) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) Root Cause java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835) com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455) com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240) com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:39) org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:256) org.apache.commons.dbcp2.BasicDataSource.validateConnectionFactory(BasicDataSource.java:2304) org.apache.commons.dbcp2.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:2290) org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039) org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1533) org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:111) org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:77) org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:336) org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:62) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:324) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:156) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:109) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:83) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:148) org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:141) org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:77) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) com.sun.proxy.$Proxy16.selectOne(Unknown Source) org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166) org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:82) org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) com.sun.proxy.$Proxy22.findUser(Unknown Source) com.ssm.core.service.impl.UserServiceImpl.findUser(UserServiceImpl.java:21) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) com.sun.proxy.$Proxy23.findUser(Unknown Source) com.ssm.core.web.controller.UserController.login(UserController.java:28) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) javax.servlet.http.HttpServlet.service(HttpServlet.java:660) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ):注意 主要问题的全部 stack 信息可以在 server logs 里查看 Apache Tomcat/8.5.49

HTTP Status 500 – Internal Server Error – The server encountered an unexpected condition

各位前辈,我初学JAVA的 我根据一位热心群友的建议,将stuts.xml的namespace="/qiantai",改为namespace="/"; 今天遇到这么个情况:window端myeclipse做的一个工程,用的是jdk7+tomcat8. 500HTTP Status 500 – Internal Server Error Type Exception Report Description The server encountered an unexpected condition that prevented it from fulfilling the request. Exception java.lang.reflect.InvocationTargetException sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ........ Root Cause java.lang.NoSuchMethodError: org.hibernate.SessionFactory.openSession()Lorg/hibernate/classic/Session; ............... Note The full stack trace of the root cause is available in the server logs. 初入门,各位前辈帮忙一下! 我试过用用jdk7+tomcat7.jdk7+tomcat8.jdk8+tomcat8. 都是<struts2.1+spring3.1+.hibernate4.1>此版本的项目都是一样不行;但是我用<struts2.1+spring2.0+.hibernate3.1>此版本重做个源代码基本相同的项目,居然是正常的! 帮下新手,请问如何在更高级的SSH框架下,不出现“HTTP Status 500 – Internal Server Error”错误呢?

HTTP Status 500 – Internal Server Error(jspmaker生成,tomcat实现)

内容是用Jspmaker把数据库表生成jsp,然后用tomcat,结果出现了以下问题 网站报错代码如下: HTTP Status 500 – Internal Server ErrorType 异常报告 消息 在 [146] 行处理 [/jspmoon/customerlist.jsp] 时发生异常 描述 服务器遇到一个意外的情况,阻止它完成请求。 Exception org.apache.jasper.JasperException: 在 [146] 行处理 [/jspmoon/customerlist.jsp] 时发生异常 143: // Open Connection to the database 144: try{ 145: Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); 146: ResultSet rs = null; 147: // Build SQL 148: String strsql = "SELECT * FROM `customer`"; 149: whereClause = ""; Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:617) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:514) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) Root Cause java.lang.NullPointerException org.apache.jsp.jspmoon.customerlist_jsp._jspService(customerlist_jsp.java:585) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) javax.servlet.http.HttpServlet.service(HttpServlet.java:741) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ):注意 主要问题的全部 stack 信息可以在 server logs 里查看 Apache Tomcat/8.5.50 jsp代码: <%@ page session="true" buffer="16kb" import="java.sql.*,java.util.*,java.text.*"%> <%@ page contentType="text/html; charset=UTF-8" %> <% response.setDateHeader("Expires", 0); // date in the past response.addHeader("Cache-Control", "no-store, no-cache, must-revalidate"); // HTTP/1.1 response.addHeader("Cache-Control", "post-check=0, pre-check=0"); response.addHeader("Pragma", "no-cache"); // HTTP/1.0 %> <% Locale locale = Locale.getDefault(); response.setLocale(locale);%> <% session.setMaxInactiveInterval(30*60); %> <%@ include file="db.jsp" %> <%@ include file="jspmkrfn.jsp" %> <% int displayRecs = 20; int recRange = 10; %> <% String tmpfld = null; String escapeString = "\\\\'"; String dbwhere = ""; String masterdetailwhere = ""; String searchwhere = ""; String a_search = ""; String b_search = ""; String whereClause = ""; int startRec = 0, stopRec = 0, totalRecs = 0, recCount = 0; %> <% // Get search criteria for basic search String pSearch = request.getParameter("psearch"); String pSearchType = request.getParameter("psearchtype"); if (pSearch != null && pSearch.length() > 0) { pSearch = pSearch.replaceAll("'",escapeString); if (pSearchType != null && pSearchType.length() > 0) { while (pSearch.indexOf(" ") > 0) { pSearch = pSearch.replaceAll(" ", " "); } String [] arpSearch = pSearch.trim().split(" "); for (int i = 0; i < arpSearch.length; i++){ String kw = arpSearch[i].trim(); b_search = b_search + "("; b_search = b_search + "`C_NAME` LIKE '%" + kw + "%' OR "; b_search = b_search + "`C_ADDRESS` LIKE '%" + kw + "%' OR "; b_search = b_search + "`C_PHONE` LIKE '%" + kw + "%' OR "; b_search = b_search + "`C_MATSEGMENT` LIKE '%" + kw + "%' OR "; b_search = b_search + "`C_COMMENT` LIKE '%" + kw + "%' OR "; if (b_search.substring(b_search.length()-4,b_search.length()).equals(" OR ")) { b_search = b_search.substring(0,b_search.length()-4);} b_search = b_search + ") " + pSearchType + " "; } }else{ b_search = b_search + "`C_NAME` LIKE '%" + pSearch + "%' OR "; b_search = b_search + "`C_ADDRESS` LIKE '%" + pSearch + "%' OR "; b_search = b_search + "`C_PHONE` LIKE '%" + pSearch + "%' OR "; b_search = b_search + "`C_MATSEGMENT` LIKE '%" + pSearch + "%' OR "; b_search = b_search + "`C_COMMENT` LIKE '%" + pSearch + "%' OR "; } } if (b_search.length() > 4 && b_search.substring(b_search.length()-4,b_search.length()).equals(" OR ")) {b_search = b_search.substring(0, b_search.length()-4);} if (b_search.length() > 5 && b_search.substring(b_search.length()-5,b_search.length()).equals(" AND ")) {b_search = b_search.substring(0, b_search.length()-5);} %> <% // Build search criteria if (a_search != null && a_search.length() > 0) { searchwhere = a_search; // Advanced search }else if (b_search != null && b_search.length() > 0) { searchwhere = b_search; // Basic search } // Save search criteria if (searchwhere != null && searchwhere.length() > 0) { session.setAttribute("customer_searchwhere", searchwhere); startRec = 1; // Reset start record counter (new search) session.setAttribute("customer_REC", new Integer(startRec)); }else{ if (session.getAttribute("customer_searchwhere") != null) searchwhere = (String) session.getAttribute("customer_searchwhere"); } %> <% // Get clear search cmd startRec = 0; if (request.getParameter("cmd") != null && request.getParameter("cmd").length() > 0) { String cmd = request.getParameter("cmd"); if (cmd.toUpperCase().equals("RESET")) { searchwhere = ""; // Reset search criteria session.setAttribute("customer_searchwhere", searchwhere); }else if (cmd.toUpperCase().equals("RESETALL")) { searchwhere = ""; // Reset search criteria session.setAttribute("customer_searchwhere", searchwhere); } startRec = 1; // Reset start record counter (reset command) session.setAttribute("customer_REC", new Integer(startRec)); } // Build dbwhere if (masterdetailwhere != null && masterdetailwhere.length() > 0) { dbwhere = dbwhere + "(" + masterdetailwhere + ") AND "; } if (searchwhere != null && searchwhere.length() > 0) { dbwhere = dbwhere + "(" + searchwhere + ") AND "; } if (dbwhere != null && dbwhere.length() > 5) { dbwhere = dbwhere.substring(0, dbwhere.length()-5); // Trim rightmost AND } %> <% // Load Default Order String DefaultOrder = ""; String DefaultOrderType = ""; // No Default Filter String DefaultFilter = ""; // Check for an Order parameter String OrderBy = request.getParameter("order"); if (OrderBy != null && OrderBy.length() > 0) { if (session.getAttribute("customer_OB") != null && ((String) session.getAttribute("customer_OB")).equals(OrderBy)) { // Check if an ASC/DESC toggle is required if (((String) session.getAttribute("customer_OT")).equals("ASC")) { session.setAttribute("customer_OT", "DESC"); }else{ session.setAttribute("customer_OT", "ASC"); } }else{ session.setAttribute("customer_OT", "ASC"); } session.setAttribute("customer_OB", OrderBy); session.setAttribute("customer_REC", new Integer(1)); }else{ OrderBy = (String) session.getAttribute("customer_OB"); if (OrderBy == null || OrderBy.length() == 0) { OrderBy = DefaultOrder; session.setAttribute("customer_OB", OrderBy); session.setAttribute("customer_OT", DefaultOrderType); } } // Open Connection to the database try{ Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); ResultSet rs = null; // Build SQL String strsql = "SELECT * FROM `customer`"; whereClause = ""; if (DefaultFilter.length() > 0) { whereClause = whereClause + "(" + DefaultFilter + ") AND "; } if (dbwhere.length() > 0) { whereClause = whereClause + "(" + dbwhere + ") AND "; } if (whereClause.length() > 5 && whereClause.substring(whereClause.length()-5, whereClause.length()).equals(" AND ")) { whereClause = whereClause.substring(0, whereClause.length()-5); } if (whereClause.length() > 0) { strsql = strsql + " WHERE " + whereClause; } if (OrderBy != null && OrderBy.length() > 0) { strsql = strsql + " ORDER BY `" + OrderBy + "` " + (String) session.getAttribute("customer_OT"); } //out.println(strsql); rs = stmt.executeQuery(strsql); rs.last(); totalRecs = rs.getRow(); rs.beforeFirst(); startRec = 0; int pageno = 0; // Check for a START parameter if (request.getParameter("start") != null && Integer.parseInt(request.getParameter("start")) > 0) { startRec = Integer.parseInt(request.getParameter("start")); session.setAttribute("customer_REC", new Integer(startRec)); }else if (request.getParameter("pageno") != null && Integer.parseInt(request.getParameter("pageno")) > 0) { pageno = Integer.parseInt(request.getParameter("pageno")); if (IsNumeric(request.getParameter("pageno"))) { startRec = (pageno-1)*displayRecs+1; if (startRec <= 0) { startRec = 1; }else if (startRec >= ((totalRecs-1)/displayRecs)*displayRecs+1) { startRec = ((totalRecs-1)/displayRecs)*displayRecs+1; } session.setAttribute("customer_REC", new Integer(startRec)); }else { startRec = ((Integer) session.getAttribute("customer_REC")).intValue(); if (startRec <= 0) { startRec = 1; // Reset start record counter session.setAttribute("customer_REC", new Integer(startRec)); } } }else{ if (session.getAttribute("customer_REC") != null) startRec = ((Integer) session.getAttribute("customer_REC")).intValue(); if (startRec==0) { startRec = 1; //Reset start record counter session.setAttribute("customer_REC", new Integer(startRec)); } } %> <%@ include file="header.jsp" %> <p><span class="jspmaker">TABLE: customer</span></p> <form action="customerlist.jsp"> <table border="0" cellspacing="0" cellpadding="4"> <tr> <td><span class="jspmaker">Quick Search (*)</span></td> <td><span class="jspmaker"> <input type="text" name="psearch" size="20"> <input type="Submit" name="Submit" value="GO"> &nbsp;&nbsp;<a href="customerlist.jsp?cmd=reset">Show all</a> </span></td> </tr> <tr><td>&nbsp;</td><td><span class="jspmaker"><input type="radio" name="psearchtype" value="" checked>Exact phrase&nbsp;&nbsp;<input type="radio" name="psearchtype" value="AND">All words&nbsp;&nbsp;<input type="radio" name="psearchtype" value="OR">Any word</span></td></tr> </table> </form> <form method="post"> <table border="0" cellspacing="1" cellpadding="4" bgcolor="#CCCCCC"> <tr bgcolor="#594FBF"> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_CUSTKEY","UTF-8") %>" style="color: #FFFFFF;">C CUSTKEY&nbsp;<% if (OrderBy != null && OrderBy.equals("C_CUSTKEY")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_NAME","UTF-8") %>" style="color: #FFFFFF;">C NAME&nbsp;(*)<% if (OrderBy != null && OrderBy.equals("C_NAME")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_ADDRESS","UTF-8") %>" style="color: #FFFFFF;">C ADDRESS&nbsp;(*)<% if (OrderBy != null && OrderBy.equals("C_ADDRESS")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_NATIONKEY","UTF-8") %>" style="color: #FFFFFF;">C NATIONKEY&nbsp;<% if (OrderBy != null && OrderBy.equals("C_NATIONKEY")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_PHONE","UTF-8") %>" style="color: #FFFFFF;">C PHONE&nbsp;(*)<% if (OrderBy != null && OrderBy.equals("C_PHONE")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_ACCTBAL","UTF-8") %>" style="color: #FFFFFF;">C ACCTBAL&nbsp;<% if (OrderBy != null && OrderBy.equals("C_ACCTBAL")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_MATSEGMENT","UTF-8") %>" style="color: #FFFFFF;">C MATSEGMENT&nbsp;(*)<% if (OrderBy != null && OrderBy.equals("C_MATSEGMENT")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td><span class="jspmaker" style="color: #FFFFFF;"> <a href="customerlist.jsp?order=<%= java.net.URLEncoder.encode("C_COMMENT","UTF-8") %>" style="color: #FFFFFF;">C COMMENT&nbsp;(*)<% if (OrderBy != null && OrderBy.equals("C_COMMENT")) { %><span class="ewTableOrderIndicator"><% if (((String) session.getAttribute("customer_OT")).equals("ASC")) {%>5<% }else if (((String) session.getAttribute("customer_OT")).equals("DESC")) { %>6<% } %></span><% } %></a> </span></td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> <td>&nbsp;</td> </tr> <% // Avoid starting record > total records if (startRec > totalRecs) { startRec = totalRecs; } // Set the last record to display stopRec = startRec + displayRecs - 1; // Move to first record directly for performance reason recCount = 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![求教图片说明](https://img-ask.csdn.net/upload/201701/09/1483930713_619563.jpg)

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HTTP Status 500 – Internal Server Error--tomcat,急需

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