flex 和webService 通訊

原創

zhaodog

2020-02-21 10:06

在flex中和webservice是很簡單，使用Webservice類就好了。

先說一下他的使用呀

web=new WebService();

//這是一個webservice的地址;
web.wsdl = "http://www.webservicex.net/globalweather.asmx?wsdl";

web.loadWSDL();

這樣就已經連接上了.

想監控連接是否成功可以註冊LoadEvent.LOAD事件

web.addEventListener(LoadEvent.LOAD,OnLoad);

下來就可以調用webservice的接口了,激動的時刻來了,如果接口有返回值的話,要先監聽一下結果

web.GetCitiesByCountry.addEventListener(ResultEvent.RESULT, OnGetCity);
web.GetCitiesByCountry("china");

  private function OnGetCity(event:ResultEvent ):void{
   var xml:XML=new XML(event.result);

  }

這樣就可以了,很簡單吧.

下面給大家一個例子,天氣預報的

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="init()">
<mx:Script>
<![CDATA[
  import mx.rpc.soap.LoadEvent;
  import mx.rpc.soap.WebService;
        import mx.rpc.events.ResultEvent;
  [Bindable]
  private var city:Array=new Array();
  private var web:WebService;
  private function init():void{
   web=new WebService();
            web.wsdl = "http://www.webservicex.net/globalweather.asmx?wsdl";

   web.addEventListener(LoadEvent.LOAD,OnLoad);
   web.loadWSDL();
   web.GetCitiesByCountry.addEventListener(ResultEvent.RESULT, OnGetCity);
   web.GetCitiesByCountry("china");
   web.GetWeather.addEventListener(ResultEvent.RESULT,OnGetWeather);
  }

  private function OnLoad(event:Event):void{
   pnlWeather.title+="------ webservice connected ... "
  }

  private function OnGetCity(event:ResultEvent ):void{
   var xml:XML=new XML(event.result);
   for each ( var name:XML in xml..City ) {
    city.push(name);
   }
   cmbCity.selectedIndex=0;

  }

  private function OnGetWeather(event:ResultEvent ):void{
   txtRWeather.text="";
   var xml:XML=new XML(event.result);
   var xmlList:XMLList=xml.children();
   for (var i:int =0;i<xmlList.length();i++){

    txtRWeather.text+= xmlList[i].toXMLString()+"/n";
   }
  }

  private function OnClick():void{
    web.GetWeather(cmbCity.selectedLabel,"china");
  }
]]>
</mx:Script>
<mx:Panel title="Weather" height="262" width="421" layout="absolute" id="pnlWeather">
<mx:Label text="city:" x="74" y="24"/>
<mx:ComboBox x="130" y="24" width="106" id="cmbCity" dataProvider="{city}"></mx:ComboBox>
<mx:Button x="258" y="24" label="提交" click="OnClick()"/>
<mx:TextArea x="130" y="54" width="261" height="156" id="txtRWeather"/>
<mx:Label x="74" y="53" text="weather"/>