Question

Servlet.service() for servlet jsp threw exception

2014-1-8 14:55:57 org.apache.catalina.core.ApplicationDispatcher invoke严重: Servlet.service() for servlet jsp threw exceptionjavax.el.PropertyNotFoundException: Property 'time' not found on type com.xiao.model.game.player.Role at javax.el.BeanELResolver$BeanProperties.get(BeanELResolver.java:214) at javax.el.BeanELResolver$BeanProperties.access$400(BeanELResolver.java:191) at javax.el.BeanELResolver.property(BeanELResolver.java:300) at javax.el.BeanELResolver.getValue(BeanELResolver.java:81) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54) at org.apache.el.parser.AstValue.getValue(AstValue.java:123) at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:938) at org.apache.jsp.tools.roleQuery_jsp._jspService(roleQuery_jsp.java:386) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302) at com.xiao.tools.controller.action.RoleAction.updateRole(RoleAction.java:228) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.xiao.tools.common.base.BaseAction.doService(BaseAction.java:68) at com.xiao.tools.common.base.BaseAction.doPost(BaseAction.java:53) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

Answer 1

关键是这一句：Property 'time' not found on type com.xiao.model.game.player.Role

 

检查：

1. 你在Role类中是否有time属性，如果没有，添加一个

2. 该time属性是否有对应的get/set方法，有的话，是否写错大小写了，是否是标准的get/set方法

问题所在：页面中的el表达式中拿不到role对象中的time值

Answer 2

Property 'time' not found on type com.xiao.model.game.player.Role