Flex事件问题--AsyncToken与IResponder之间的调用

请问各位老大,Flex与Hessian交互时，执行auth方法时 responder为什么总是先调用错误处理方法，然后再调用成功处理函数啊？

 

代码类似如下: （因为编辑器里不能插入Flex代码，故插入成java　）

 

import mx.rpc.IResponder;
import mx.rpc.Responder;
import hessian.client.HessianService;
import mx.rpc.AsyncToken;
import mx.rpc.events.ResultEvent;

import com.rdi.ncms.model.ModelLocator;

		public function auth(username:String,password:String):void{
			var responder:IResponder = new Responder(loginResultHandler,loginFaultHandler);
			var service:HessianService = new HessianService("http://localhost:8080/ncms/UserService");
			var token:AsyncToken = service.auth.send(username,password);			
			token.addResponder(responder);			
		}		
		public function loginResultHandler(data:Object):void {
			var event : ResultEvent = data as ResultEvent; 
			var theModle:ModelLocator = ModelLocator.getInstance();         	
			if(event.result == true){
				theModle.statusMessage = "登录成功!";
				theModle.dispatchEvent(new Event(ModelLocator.LOGIN_OK));
			}else{
				theModle.statusMessage="用户名密码错误!";
				theModle.dispatchEvent(new Event(ModelLocator.LOGIN_FAILED));
			}
		}
		public function loginFaultHandler(info:Object):void{
			var theModle:ModelLocator = ModelLocator.getInstance();
			theModle.statusMessage="网络连接失败";		
		}

 

我也遇到了同样的问题。
错误是：
faultCode:InvokeFailed faultString:'[MessagingError message='The MessageAgent's destination must be set to send messages.']' faultDetail:'Couldn't establish a connection to '''
实在找不到为什么。

下载源代码 找到HessianOperation.as

找到
var token:AsyncToken = mx_internal::invoke(msg)
改为:
var token:AsyncToken = new AsyncToken(msg);
就可以了

重新编译整个 swc.