Flex 中调用 WebService

 import mx.rpc.events.*;
 import mx.rpc.AbstractOperation;
 import mx.rpc.soap.WebService;
 import mx.rpc.*;
 import mx.controls.*;

 private function UserLogin(user:String,pass:String):void{
                 var ws:WebService = new WebService();
                 var op:AbstractOperation;
                 var loginUser:Object = new Object;
 
                 var args:Object = new Object; //参数 
                 loginUser.Name = user;
                 loginUser.Pwd = pass;
 
                 args.loginUser =loginUser;
 
                 ws.loadWSDL('http://localhost/service.asmx?WSDL'); 
                 ws.useProxy = false;    
 
                 op = ws['Login'];  //调用的函数名
                 ws.addEventListener("result",WsResult);  
                 ws.addEventListener("fault",WsFault);     
 
                 op.arguments = args;
                 op.send();
            }
 
 private var oper:OperatorInfo = new OperatorInfo();  //返回值 

 private function WsFault(event:FaultEvent):void{
                Alert.show(event.toString(),'error');
            }
 
 private function WsResult(event:ResultEvent):void{
 if(event.result != null){
                    oper.Name = event.result.Name;
                    oper.ID = event.result.ID;
                    oper.Password = event.result.Password;
                    oper.RoleID = event.result.RoleID;
                    oper.UserGroupID = event.result.UserGroupID;
                    asdf.text=oper.Name;
                }
 else{
                    asdf.text="login error";
                }
            }

 
package
{
 public class OperatorInfo
    {
 public var ID:int;
 public var Name:String;
 public var Password:String;
 public var UserGroupID:int;
 public var RoleID:int;
    }
}