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  • HTTP Status 500

    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,这个错误非常明显,就是没有对变量进行Null推断。

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

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  • 原文地址:https://www.cnblogs.com/gavanwanggw/p/6916371.html
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