Struts2 json返回问题

djjzjwl 2011-09-19 02:52:50

struts

<action name="vote" class="CharactsAction" method="depli2">

    	 <param name="root">          node  </param>  

</action>

 public String depli2() throws Exception {

		

		 List<DeviceCharact> list = chservice.findAll();

		 this.node = new ArrayList<Object>();

		 this.total=chservice.findAll().size();

		 for(int i=0;i<list.size();i++){

			  DeviceCharact   dep=list.get(i);

			  Map<String,Object> map = new HashMap<String,Object>();

			  map.put("id", dep.getId());

			  map.put("charId", dep.getCharType().getId());

			  map.put("text", dep.getCharType().getTypeName());

			  map.put("charValue", dep.getCharValue());

			  map.put("dtype", dep.getDtype());

			  map.put("dtype2", trans2(dep.getDtype()));

			  map.put("isCheck", dep.getIsCheck());

			  map.put("isCheck1",trans(dep.getIsCheck()));

			  map.put("typeid", dep.getTypeInfo().getId());

			  map.put("typeName", dep.getTypeInfo().getTypeName());

			  this.node.add(map);  

			 

		  }

		  System.out.println(this.node);

	

		  return SUCCESS;

		 }

为什么显示错误

No result defined for action com.tds.action.CharactsAction and result success 

    com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:375)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:277)

    com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:263)

    org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:133)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:207)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:190)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:75)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:94)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:243)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:270)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)

    com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:190)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)

    com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:248)

    org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)

    org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:498)

    org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)

    org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)

    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)

    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)

    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)

    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)

    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)

    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)

    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)

    org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)

    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)

    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:403)

    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:301)

    org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:162)

    org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)

    java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)

    java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

    java.lang.Thread.run(Unknown Source)