服务器部署后，报表查询报错
在本机测试没问题，部署到服务器上出错，用的tomcat，错误日志如下：
2011-08-15 07:13:16 StandardContext[/balancer]org.apache.webapp.balancer.BalancerFilter: init(): ruleChain: [org.apache.webapp.balancer.RuleChain: [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News / Redirect URL: http://www.cnn.com], [org.apache.webapp.balancer.rules.RequestParameterRule: Target param name: paramName / Target param value: paramValue / Redirect URL: http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL: http://jakarta.apache.org]]
2011-08-15 07:13:18 StandardContext[/jsp-examples]ContextListener: contextInitialized()
2011-08-15 07:13:18 StandardContext[/jsp-examples]SessionListener: contextInitialized()
2011-08-15 07:13:18 StandardContext[/servlets-examples]ContextListener: contextInitialized()
2011-08-15 07:13:18 StandardContext[/servlets-examples]SessionListener: contextInitialized()
2011-08-15 07:32:24 StandardContext[/balancer]org.apache.webapp.balancer.BalancerFilter: init(): ruleChain: [org.apache.webapp.balancer.RuleChain: [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News / Redirect URL: http://www.cnn.com], [org.apache.webapp.balancer.rules.RequestParameterRule: Target param name: paramName / Target param value: paramValue / Redirect URL: http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL: http://jakarta.apache.org]]
2011-08-15 07:32:26 StandardContext[/jsp-examples]ContextListener: contextInitialized()
2011-08-15 07:32:26 StandardContext[/jsp-examples]SessionListener: contextInitialized()
2011-08-15 07:32:27 StandardContext[/servlets-examples]ContextListener: contextInitialized()
2011-08-15 07:32:27 StandardContext[/servlets-examples]SessionListener: contextInitialized()
2011-08-15 07:40:17 StandardContext[/member]Exception sending context destroyed event to listener instance of class com.run.web.listener.Listener
java.lang.NullPointerException
at org.apache.catalina.loader.WebappClassLoader.findResourceInternal(WebappClassLoader.java:1774)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1575)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:860)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1307)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at com.run.web.listener.Listener.contextDestroyed(Listener.java:55)
at org.apache.catalina.core.StandardContext.listenerStop(StandardContext.java:3868)
at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4531)
at org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:952)
at org.apache.catalina.core.StandardHostDeployer.remove(StandardHostDeployer.java:723)
at org.apache.catalina.core.StandardHost.remove(StandardHost.java:971)
at org.apache.catalina.startup.HostConfig.checkContextLastModified(HostConfig.java:840)
at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1085)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:327)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at org.apache.catalina.core.StandardHost.backgroundProcess(StandardHost.java:800)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1619)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1628)
at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1608)
at java.lang.Thread.run(Thread.java:595)

2011-08-15 07:42:25 StandardWrapperValve[action]: Servlet.service() for servlet action threw exception
java.lang.NullPointerException
at com.run.web.action.SearchExpenseAction.execute(SearchExpenseAction.java:63)

at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at com.run.web.filter.EncodeFilter.doFilter(EncodeFilter.java:26)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at com.run.web.filter.EncodeFilter.doFilter(EncodeFilter.java:26)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)


[解决办法]
空指针啊
[解决办法]
空指针异常，2011-08-15 07:42:25 StandardWrapperValve[action]: Servlet.service() for servlet action threw exception
java.lang.NullPointerException
建议检查这段代码，或者贴出来给你分析一下
[解决办法]
SearchExpenseAction.java:63
发63行上下代码。