严重: Servlet.service() for servlet jsp threw exception java.lang.NullPointerException

严重: Servlet.service() for servlet jsp threw exception

java.lang.NullPointerException

at org.apache.jsp.WEB_002dINF.jsp.index1_jsp._jspService(index1_jsp.java:131)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)

at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)

at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)

at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1533)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1489)

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)

 

16:58:42.283 [http-nio-8080-exec-53] DEBUG org.springframework.web.servlet.DispatcherServlet – Error rendering view [org.springframework.web.servlet.view.JstlView: name ‘index1’; URL [/WEB-INF/jsp/index1.jsp]] in DispatcherServlet with name ‘springmvc’

org.apache.jasper.JasperException: java.lang.NullPointerException

at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:560)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)

at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)

at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)

at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1533)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1489)

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)

Caused by: java.lang.NullPointerException: null

at org.apache.jsp.WEB_002dINF.jsp.index1_jsp._jspService(index1_jsp.java:131)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)

… 47 common frames omitted

16:58:42.283 [http-nio-8080-exec-53] DEBUG org.springframework.web.servlet.DispatcherServlet – Could not complete request

org.apache.jasper.JasperException: java.lang.NullPointerException

at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:560)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)

at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)

at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)

at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1533)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1489)

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)

Caused by: java.lang.NullPointerException: null

at org.apache.jsp.WEB_002dINF.jsp.index1_jsp._jspService(index1_jsp.java:131)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)

… 47 common frames omitted

九月 08, 2017 4:58:42 下午 org.apache.catalina.core.StandardWrapperValve invoke

严重: Servlet.service() for servlet [springmvc] in context with path [/ShangCheng] threw exception [java.lang.NullPointerException] with root cause

java.lang.NullPointerException

at org.apache.jsp.WEB_002dINF.jsp.index1_jsp._jspService(index1_jsp.java:131)

at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:438)

at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)

at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:716)

at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)

at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)

at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)

at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)

at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)

at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)

at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)

at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)

at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)

at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)

at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)

at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

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

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)

at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)

at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)

at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)

at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1533)

at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1489)

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)

 

1.此种错误是由于jsp页面获得了一个空指针导致,即servlet传参数时有一个参数没穿过去或者传的参数和接受的参数不一致导致的,检查一下参数即可解决

 

2.原因是项目jar包和tomcat的jar包冲突了。不兼容。

servlet-api.jar加载失败。一般这个jar 是不需要在你的项目中显式存放的。因为。一般tomcat里lib下都会有这个jar。你在自己的项目里 又写了一个。反而会冲突。

删除工程里的jsp-api.jar和servlet-api.jar两个jar包,但是删除完这两个jar,可能还是有问题,此时需要仔细查看自己工程里的.classpath文件,特别注意kind=“lib” 是不是引用了jsp-api.jar和servlet-api.jar这两个jar包,可能会引用tomcat里的jar包,如果发现有这种情况,必须删除那两行,重启tomcat,应该就没问题了!

发表评论

邮箱地址不会被公开。 必填项已用*标注

昵称 *