java在weblogic服务器中使用struts2时出错

Question

我得到下面的错误@ weblogic server。谁能帮帮我吗

<BEA-101020> <[weblogic.servlet.internal.WebAppServletContext@3c6542 - appName: 'goutattack', name: 'goutattack', context-path: '', spec-version: '2.5'] Servlet failed with Exception
java.lang.NullPointerException
        at weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.java:643)
        at org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:852)
        at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:534)
        at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:432)
        at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
        at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3502)
        at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
        at weblogic.security.service.SecurityManager.runAs(Unknown Source)
        at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2186)
        at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2092)
        at weblogic.servlet.internal.ServletRequestImpl.run(Unknown Source)
        at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
        at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

Answer 1

这是一个已知的主要问题，已在Struts v2中修复。3.7. 见：https://issues.apache.org/jira/browse/WW-3373

也可能与Jasper插件的问题有关：

When using mentioned plugin in Weblogic 11g you can get NullPointerException within Struts 2. To solve the problem you must enable the "Archived Real Path" global property in Weblogic admin console > configuration > Web Applications. It's because JasperReportsResult determines the report directory base on servletContext.getRealPath(finalLocation).

https://cwiki.apache.org/confluence/display/WW/WebLogic