摆脱Tomcat中的Spring日志

Question

我正在为在Tomcat 7上运行的Java Web应用程序使用spring-mvc和安全性。我通过扩展AbstractAuthenticationProcessingFilter来定制了弹簧安全性，并且为了捕获自定义异常，我有一个扩展ExceptionHandlerExceptionResolver的类。

现在，无论何时运行，无论何时出现异常，我都无法在tomcat日志中看到异常的原因。 Tomcat生成了一个日志，该日志与spring安全链中的所有类和ExceptionHandlerExceptionResolver类有关。

如何找回默认日志？

日志示例：

org.springframework.web.servlet.FrameworkServlet.processRequest（FrameworkServlet.java:927）org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:811）javax.servlet.http.HttpServlet.service（HttpServlet.java： 621）org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:796）javax.servlet.http.HttpServlet.service（HttpServlet.java:728）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（ FilterChainProxy.java:330）org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke（FilterSecurityInterceptor.java:118）org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter（FilterSecurityInterceptor.java:84） org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.access.ExceptionTranslationFilter.doFilter（ExceptionTranslationFilter.java:113）org.springframework.security.web.FilterChainProxy $虚拟网络 lterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.session.SessionManagementFilter.doFilter（SessionManagementFilter.java:103）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342） org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter（AnonymousAuthenticationFilter.java:113）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.servletapi。 SecurityContextHolderAwareRequestFilter.doFilter（SecurityContextHolderAwareRequestFilter.java:150）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter（RequestCacheAwareFilter.java:45） org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）com.cagatay.deneme.server.security.AuthFilte r.doFilter（AuthFilter.java:65）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.authentication.logout.LogoutFilter.doFilter（LogoutFilter.java： 105）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal（WebAsyncManagerIntegrationFilter.java:50）org.springframework。 web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.session.ConcurrentSessionFilter.doFilter（ConcurrentSessionFilter。 java：125）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter（SecurityContextPers istenceFilter.java:87）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.FilterChainProxy.doFilterInternal（FilterChainProxy.java:192）org.springframework.security。 web.FilterChainProxy.doFilter（FilterChainProxy.java:160）org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:346）org.springframework.web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:259）

根本原因 java.lang.NullPointerException com.cagatay.deneme.server.controller.errorhandler.ErrorController.doResolveHandlerMethodException（ErrorController.java:40）org.springframework.web.servlet.handler.AbstractHandlerMethodExceptionResolver.doResolveException（AbstractHandlerMethodExceptionResolver.java:60）org .springframework.web.servlet.handler.AbstractHandlerExceptionResolver.resolveException（AbstractHandlerExceptionResolver.java:136）org.springframework.web.servlet.DispatcherServlet.processHandlerException（DispatcherServlet.java:1148）org.springframework.web.servlet.DispatcherServlet.processDispatchResult（DispatcherServlet .java：985）org.springframework.web.servlet.DispatcherServlet.doDispatch（DispatcherServlet.java:939）org.springframework.web.servlet.DispatcherServlet.doService（DispatcherServlet.java:856）org.springframework.web.servlet.FrameworkServlet .processRequest（FrameworkServlet.java:915）org.springframework.web.servlet.FrameworkServlet.doGet（FrameworkServlet.java:811）JAV ax.servlet.http.HttpServlet.service（HttpServlet.java:621）org.springframework.web.servlet.FrameworkServlet.service（FrameworkServlet.java:796）javax.servlet.http.HttpServlet.service（HttpServlet.java:728） org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:330）org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke（FilterSecurityInterceptor.java:118）org.springframework.security.web。 access.intercept.FilterSecurityInterceptor.doFilter（FilterSecurityInterceptor.java:84）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.access.ExceptionTranslationFilter.doFilter（ExceptionTranslationFilter。 java：113）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.session.SessionManagementFilter.doFilter（SessionManagementFilter.java:103）org.springframework.se curity.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter（AnonymousAuthenticationFilter.java:113）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（ FilterChainProxy.java:342）org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter（SecurityContextHolderAwareRequestFilter.java:150）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework。 security.web.savedrequest.RequestCacheAwareFilter.doFilter（RequestCacheAwareFilter.java:45）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）com.cagatay.deneme.server.security.AuthFilter.doFilter（ AuthFilter.java:65）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.authent ication.logout.LogoutFilter.doFilter（LogoutFilter.java:105）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter。 doFilterInternal（WebAsyncManagerIntegrationFilter.java:50）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework。 security.web.session.ConcurrentSessionFilter.doFilter（ConcurrentSessionFilter.java:125）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter（ SecurityContextPersistenceFilter.java:87）org.springframework.security.web.FilterChainProxy $ VirtualFilterChain.doFilter（FilterChainProxy.java:342）org.springframework.security.web.FilterChainProx y.doFilterInternal（FilterChainProxy.java:192）org.springframework.security.web.FilterChainProxy.doFilter（FilterChainProxy.java:160）org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate（DelegatingFilterProxy.java:346）org.springframework。 web.filter.DelegatingFilterProxy.doFilter（DelegatingFilterProxy.java:259）

Answer 1

根据com.cagatay.deneme.server.controller.errorhandler.ErrorController ，看起来您在com.cagatay.deneme.server.controller.errorhandler.ErrorController第40行上com.cagatay.deneme.server.controller.errorhandler.ErrorController了NullPointerException问题。 您需要找出导致此问题的原因并加以解决。

编辑：

根据AbstractHandlerMethodExceptionResolver的文档 ，异常处理程序应返回ModelAndView 。 在您的代码中，抛出NullPointerException 。 现在，不用看代码，就不知道您是否在抛出异常，但是stacktrace使我相信NPE起源于第40行。恕我直言，异常处理程序本身不应该引发异常。

Answer 2

在最高级别，您可以捕获任何预期的和意外的异常，并根据需要手动记录它们，而不是让它们传播到Spring并自行处理。

一种方法是使用ExceptionHandler。 范例： http ： //www.mkyong.com/spring-mvc/spring-mvc-exceptionhandler-example/