org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
com.test.template.TemplateDispatchFilter.doFilter(TemplateDispatchFilter.java:66)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:774)
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:896)
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
java.lang.Thread.run(Thread.java:636)
异常中的我的代码：com.test.template.TemplateDispatchFilter（实现Filter）：
第66行：req.getRequestDispatcher("template.jsp").forward(req, res);
在服务器上部署时，我的应用程序中是否需要更改？ 编辑： 当我尝试登录并执行第66行时，似乎只出现此错误！ 有人有想法吗？