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HTTP Status 500 – Request processing failed; nested exception is java.lang.NullPointerException

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HTTP Status 500 – Request processing failed; nested exception is java.lang.NullPointerException

type Exception report

message Request processing failed; nested exception is java.lang.NullPointerException

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException



org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:965)



org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:844)



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



org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)



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



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



com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)



org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)



org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)



org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)



com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:111)



org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)



org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)



org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)



org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)



org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)

root cause

java.lang.NullPointerException



com.xinghe.base.action.NoticePublic.listNotice(NoticePublic.java:44)



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:440)



org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)



org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:919)



org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:851)



org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:953)



org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:844)



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



org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:829)



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



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



com.auth.filter.AuthorizationFilter.doFilterInternal(AuthorizationFilter.java:77)



org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)



org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)



org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)



com.auth.filter.AuthenticationFilter.doFilterInternal(AuthenticationFilter.java:111)



org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)



org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:343)



org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:260)



org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)



org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:106)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.54 logs.

Apache Tomcat/7.0.54

NullPointerException，这个错误很明显，就是没有对变量进行Null判断；

错误位置：com.xinghe.base.action.NoticePublic.listNotice(NoticePublic.java:44)


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