为什么无论是发行版还是源码版,都一直是空指针

[04-29 01:09:58.792] [ERROR] [HttpServlet] Error occured when handling uri: /cat/s/router java.lang.NullPointerException at org.unidal.web.mvc.lifecycle.DefaultRequestLifecycle.handle(DefaultRequestLifecycle.java:61) at org.unidal.web.MVC.service(MVC.java:76) at javax.servlet.http.HttpServlet.service(HttpServlet.java:583) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:212) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at com.dianping.cat.support.servlet.CatFilter$Context.handle(CatFilter.java:294) at com.dianping.cat.support.servlet.CatFilter$CatHandler$3.handle(CatFilter.java:142) at com.dianping.cat.support.servlet.CatFilter$Context.handle(CatFilter.java:292) at com.dianping.cat.support.servlet.CatFilter$CatHandler$4.handle(CatFilter.java:235) at com.dianping.cat.support.servlet.CatFilter$Context.handle(CatFilter.java:292) at com.dianping.cat.support.servlet.CatFilter$CatHandler$2.handle(CatFilter.java:125) at com.dianping.cat.support.servlet.CatFilter$Context.handle(CatFilter.java:292) at com.dianping.cat.support.servlet.CatFilter$CatHandler$1.handle(CatFilter.java:105) at com.dianping.cat.support.servlet.CatFilter$Context.handle(CatFilter.java:292) at com.dianping.cat.support.servlet.CatFilter.doFilter(CatFilter.java:60) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at com.dianping.cat.system.page.permission.PermissionFilter.doFilter(PermissionFilter.java:94) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:181) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:156) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483) at …