调用action中的一个方法

Question

用struts时遇见一个问题，就是我要调用action中的某个方法，比如check,我的action继承了DispatchAction，然后写了一个check方法，返回类型和参数都和execute一样的，然后我在我在action配置文件中配置了parameter="method" 这个属性，index.jsp页面中加入<jsp:include flush="true" page="/users.do?method=check" />，但是启动tomcat时却报错：
2009-5-6 9:31:08 org.apache.struts.actions.DispatchAction dispatchMethod
严重: Action[/users] does not contain method named 'check'
java.lang.NoSuchMethodException: user.action.UsersAction.check(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
at java.lang.Class.getMethod(Class.java:1605)
at org.apache.struts.actions.DispatchAction.getMethod(DispatchAction.java:322)
at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:262)
at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:194)
at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:106)
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:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:574)
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:499)
at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:966)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:51)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:78)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:619)
2009-5-6 9:31:08 org.apache.struts.action.RequestProcessor processException
警告: Unhandled Exception thrown: class java.lang.NoSuchMethodException难道我哪里配错了，找不到check这个方法？

Answer 1

<jsp:include flush="true" page="/users.do?method=check" />，但是启动tomcat时却报错
首先你要检查你的定义的check方法确定在/users.do对应的action里面
仔细检查拼写和配置文件

Answer 2

users.do?method=check这个是个请求路径，你用 page请求不知道是否支持。

Answer 3

楼上的，那是tomcat的报错信息，又不是我写的代码。。

Answer 4

把method这个改成其他名字，跟系统的关键字重复了

Answer 5

java.lang.NoSuchMethodException: user.action.UsersAction.check(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) 
不存在check这个方法！

Answer 6

确定你的配置文件是这样写的?<action path="/users" type="action地址" name="UserForm" parameter="method"></action>

Answer 7

问题解决了，不是配置上的错误，是方法的参数顺序搞错了，(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse) ，我原来的是request,response，actionMapping,actionForm.改过来就好了。晕死了。