flex webservice

这次说的关于Flex的WebService来自于一位网友的贡献，看了后十分清晰，果然比纯JAVA的WebService要方便许多，只需要提供一个WebService服务地址，如中国气象局的免费服务【当然大家都知道这个界面就是个XML】：http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl

通过下面这个网址可以输入城市，查询城市天气预报

http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?op=getWeatherbyCityName

我们现在要做的就是实现这个功能，在Flex上面非常容易，贴上代码

只有一个mxml即可

Xml代码  

1. <?xml version="1.0" encoding="utf-8"?>  
2. <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"    
3.                xmlns:s="library://ns.adobe.com/flex/spark"    
4.                xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">  
5.     <fx:Declarations>  
6.         <!-- 将非可视元素（例如服务、值对象）放在此处 -->  
7.         <mx:WebService id="webService" wsdl="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl"  
8.                        showBusyCursor="true" result="onLoad(event)" fault="faultHandler(event)"/>  
9.     </fx:Declarations>  
10.     <fx:Script>  
11.         <![CDATA[  
12.             import mx.collections.ArrayCollection;  
13.             import mx.controls.Alert;  
14.             import mx.rpc.events.FaultEvent;  
15.             import mx.rpc.events.ResultEvent;  
16.             private function onLoad(event:ResultEvent):void{   
17.                 //Alert.show(event.result.toString(),"WebService Results");   
18.                 var weatherInfo:ArrayCollection = (event.result) as ArrayCollection;   
19.                 for(var i:int=0;i<weatherInfo.length;i++){   
20.                     myWeatherReport.text+=weatherInfo[i]+"\n";   
21.                 }   
22.             }   
23.             private function faultHandler(event:FaultEvent):void{   
24.                 Alert.show(event.fault.toString(),'WebService Error');   
25.             }   
26.               
27.  
28.             protected function button1_clickHandler(event:MouseEvent):void  
29.             {  
30.                 webService.getWeatherbyCityName(cityName.text);  
31.             }  
32.  
33.         ]]>  
34.     </fx:Script>  
35.     <s:Panel x="48" y="21" width="679" height="423" title="城市天气预报查询FLEX">  
36.         <s:TextInput x="135" y="26" id="cityName"/>  
37.         <s:Label x="43" y="31" text="请输入城市名称"/>  
38.         <s:Button x="286"  y="26" label="点击查询" click="button1_clickHandler(event)"/>  
39.         <s:TextArea id="myWeatherReport" x="31" y="68" width="615" height="297"/>  
40.     </s:Panel>  
41.        
42. </s:Application>  
43.   

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
			   xmlns:s="library://ns.adobe.com/flex/spark" 
			   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
		<mx:WebService id="webService" wsdl="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl"
					   showBusyCursor="true" result="onLoad(event)" fault="faultHandler(event)"/>
	</fx:Declarations>
	<fx:Script>
		<![CDATA[
			import mx.collections.ArrayCollection;
			import mx.controls.Alert;
			import mx.rpc.events.FaultEvent;
			import mx.rpc.events.ResultEvent;
			private function onLoad(event:ResultEvent):void{ 
				//Alert.show(event.result.toString(),"WebService Results"); 
				var weatherInfo:ArrayCollection = (event.result) as ArrayCollection; 
				for(var i:int=0;i<weatherInfo.length;i++){ 
					myWeatherReport.text+=weatherInfo[i]+"\n"; 
				} 
			} 
			private function faultHandler(event:FaultEvent):void{ 
				Alert.show(event.fault.toString(),'WebService Error'); 
			} 
			

			protected function button1_clickHandler(event:MouseEvent):void
			{
				webService.getWeatherbyCityName(cityName.text);
			}

		]]>
	</fx:Script>
	<s:Panel x="48" y="21" width="679" height="423" title="城市天气预报查询FLEX">
		<s:TextInput x="135" y="26" id="cityName"/>
		<s:Label x="43" y="31" text="请输入城市名称"/>
		<s:Button x="286"  y="26" label="点击查询" click="button1_clickHandler(event)"/>
		<s:TextArea id="myWeatherReport" x="31" y="68" width="615" height="297"/>
	</s:Panel>
	
</s:Application>

效果图就是下面这样的

转载连接：http://javacrazyer.iteye.com/blog/702914