org.springframework.web.util.NestedServletException：请求处理失败（HttpSession问题）-Java 学习之路

我的情况类似于我的情况 . 首先我只是在后端使用 SecurityContextHolder.clearContext() 但是它会使会话保持活动状态，然后我继续会话失效并将任何现有的cookie年龄设置为0.但是我面对另一个问题，如下所述 .

org.springframework.web.util.NestedServletException：请求处理失败;嵌套异常是org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:982）中的java.lang.NullPointerException，位于javax.servlet的org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:866） .http.HttpServlet.service（HttpServlet.java:635）位于org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:851）的javax.servlet.http.HttpServlet.service（HttpServlet.java:742）at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter在org.apache.tomcat.websocket.server.WsFilter（ApplicationFilterChain.java:231）在org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166） . 的doFilter（WsFilter.java:52）在org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）在org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）在org.springframework .security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainP roxy.java:320）在org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke（FilterSecurityInterceptor.java:127）在org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter（FilterSecurityInterceptor.java： 91）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334）在org.springframework.security.web.access.ExceptionTranslationFilter.doFilter（ExceptionTranslationFilter.java:119）在org.springframework.security位于org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter的org.springframework.security.web.session.SessionManagementFilter.doFilter（SessionManagementFilter.java:137）中的.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334）（FilterChainProxy.java:334）org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter（AnonymousAuthenticationFilter.java:111）org.springframework.security.web.FilterChainProxy $ Virtua lFilterChain.doFilter（FilterChainProxy.java:334）org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter（SecurityContextHolderAwareRequestFilter.java:170）at org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java： 334）在org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter（RequestCacheAwareFilter.java:63）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334）在org.springframework.security Org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFil （FilterChainProxy.java:334）org.springframework.security.we上的org.springframework.security.web.authentication.logout.LogoutFilter.doFilter（LogoutFilter.java:116） b.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334）org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal（HeaderWriterFilter.java:66）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter . 的java：107）在org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334）在org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter（SecurityContextPersistenceFilter.java:105）在org.springframework位于org.springframework.web.filter的org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal（WebAsyncManagerIntegrationFilter.java:56）的.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334） .OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.sec上的org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:334） urg.web.FilterChainProxy.doFilterInternal（FilterChainProxy.java:215）org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:178）org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java： 357）org.apache.workCilalCore上的org.apache文件 . 我在org.apache上发表了一个org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）的org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:270） .doFilter（ApplicationFilterChain.java:166）atorg.springframework.web.filter.RequestContextFilter.doFilterInternal（RequestContextFilter.java:99）org.apringframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ ApplicationFilterChain.java:193）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）atg.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal（HttpPutFormContentFilter.java:109）org.springframework.web .filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166））org.apac上的org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）来自org.apringframework.session.web.http.SessionRepositoryFilter.doFilterInternal的org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）中的he.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193） SessionRepositoryFilter.java:147）org.apache上的org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）org.springframework.session.web.http.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:81） .catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166）org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:200）at org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java）：107）在com.boo的org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java:166） org.apache.catalina.core.ApplicationFilterChain.internalDoFilter（ApplicationFilterChain.java:193）中的kstore.config.RequestFilter.doFilter（RequestFilter.java:30）位于org.apache.catalina.core.ApplicationFilterChain.doFilter（ApplicationFilterChain.java： 166）org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:198）org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:96）at org.apache.catalina.authenticator.AuthenticatorBase .invoke（AuthenticatorBase.java:493）org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:140）org.apache.catalina.valves.ErrorReportValve.invoke（ErrorReportValve.java:81）at org . 位于org.apache.catalina.connevice.CoyoteAdapter.service（CoyoteAdapter.java:342）的apache.catalina.core.StandardEngineValve.invoke（StandardEngineValve.java:87）位于org.apache.coyote.http11.Http11Processor.service（Http11Processor . java：800）at org.apache.coyote.AbstractProcessorLight.process（AbstractProcessorLight.java:6 6）org.apache.coyote.AbstractProtocol $ ConnectionHandler.process（AbstractProtocol.java:806）org.apache.tomcat.util.net.NioEndpoint $ SocketProcessor.doRun（NioEndpoint.java:1498）org.apache.tomcat .util.net.SocketProcessorBase.run（SocketProcessorBase.java:49）java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1149）java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:624））at org.apache.tomcat.util.threads.TaskThread $ WrappingRunnable.run（TaskThread.java:61）at java.lang.Thread.run（Thread.java:748）引起：com的java.lang.NullPointerException . book.controller.LoginResource.logout（LoginResource.java:53）at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）at sun.reflect.DelegatingMethodAccessorImpl.invoke（ DelegatingMethodAccessorImpl.java:43）在org.springframework.web.method.support.In的java.lang.reflect.Method.invoke（Method.java:498） vocableHandlerMethod.doInvoke（InvocableHandlerMethod.java:209）org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest（InvocableHandlerMethod.java:136）org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle（ ServletInvocableHandlerMethod.java:102）org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod（RequestMappingHandlerAdapter.java:891）at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal（ RequestMappingHandlerAdapter.java:797）org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle（AbstractHandlerMethodAdapter.java:87）org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:991）at org .springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:925）at atorg.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:974）

当我退出时，我在角度使用此服务：

logout(){
    let url="http://localhost:8090/user/logout";
    const xToken = localStorage.getItem('xAuthToken');
    let headers=new Headers({
      'x-auth-token':xToken
    });

    return this.http.post(url,'',{headers:headers});
  }

在后端，我想在注销时使用此方法清除所有活动会话和cookie：

@RequestMapping(value = "/user/logout",method=RequestMethod.POST)
    public ResponseEntity logout(HttpServletRequest request, HttpServletResponse response) {
        HttpSession session= request.getSession(false);
        SecurityContextHolder.clearContext();
             session= request.getSession(false);
            if(session != null) {
                session.invalidate();
            }
            for(Cookie cookie : request.getCookies()) {
                cookie.setMaxAge(0);
            }


        return new ResponseEntity("Logout Successful !", HttpStatus.OK);
    }

当我调试它在包含 HttpSession session 变量的第一行中爆发时，我猜 request.getSession(false) 返回null . 这个假设可能是假的或者是真的，我不确定 .

我很感谢你的帮助 . 谢谢你的合作 .

org.springframework.web.util.NestedServletException：请求处理失败（HttpSession问题）

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