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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