Flex HttpService重用2

HttpService工具类：

package common
{
	import com.adobe.serialization.json.JSON;
	
	import mx.controls.Alert;
	import mx.rpc.AsyncResponder;
	import mx.rpc.AsyncToken;
	import mx.rpc.events.FaultEvent;
	import mx.rpc.http.HTTPService;

	public class HttpServices
	{
		private var http:HTTPService;
		private var _host:String;
		private static var https:HttpServices;
		
		public function HttpServices()
		{
			http = new HTTPService();
		}

		public function set host(value:String):void
		{
			_host = value;
		}

		private function sendHttpSer(method:String,local:String,json:String,format:String,contentType:String):AsyncToken
		{
			_host = "http://192.168.1.146:8080";
			local = _host + local;
			http.url = local + method;
			http.resultFormat = format;
			http.method = "POST";
			http.showBusyCursor = true;
			http.contentType = contentType;
			return json.length>0 ? http.send(json) : http.send();
		}
		
		public function sendHttpRequest(method:String,
										resultFunc:Function,
										local:String="/zport/dmd/YDBackScript/asset_handler?callMethod=",
										format:String="e4x",
										contentType:String="application/x-www-form-urlencoded"):void
		{
			var token:AsyncToken = sendHttpSer("getAllAssetsClass&submitted=true",local,"",format,contentType);
			responderHandler(token,resultFunc);
		}
		
		public function sendJsonRequest(method:String,data:Object,resultFunc:Function,local:String="/zport/dmd/kwb_router"):void
		{
			var o:Object = {};
			
			o.action = "KWBRouter";
			o.method = method;
			o.data = [data];
			o.type = "rpc";
			o.tid = 10;
			
			var json:String = JSON.encode(o);
			
			var token:AsyncToken = sendHttpSer("",local,json,"object","application/json; charset=utf-8");
			responderHandler(token,resultFunc);
		}
		
		
		private function responderHandler(token:AsyncToken,resultHandler:Function):void
		{
			var responder:AsyncResponder = new AsyncResponder(resultHandler,faultHandler);
			token.addResponder(responder);
		}
		
		private function faultHandler(event:FaultEvent,token:Object=null):void
		{
			//			Alert.show("网络服务未能正常访问，请联系管理员解决，:)","错误提示");
			trace( "FAULT: " + event.fault.message );
		}
		
		public static function getInstance():HttpServices
		{
			if(!https)https = new HttpServices();
			return https;
		}
	}
}

调用方法：

https.sendHttpRequest("getAllAssetsClass&submitted=true",assetsClass_resultHandler);

private function getJsonData(param:Object,method:String,resultFunc:Function):void
			{
	var data:Object = {};
	
	data.start = 0;
	data.limit = 100;
	data.param = param;
	data.sort_param = {id:"asc"};
	
	https.sendJsonRequest(method,data,resultFunc);
}

回调函数：

private function assetsClass_resultHandler(e:ResultEvent,token:Object=null):void
{
}