flex4出来一段时间了,去年看了一段时间flex3,后来由于暂时没有项目需求.所以flex遗忘了很多.这次使用flex4+myeclipse8.5录制了一个视频.以免时间长了遗忘.
软件环境:windows7+flex4+myeclipse8.5+blazeds
功能描述:分别用代码实现了三种flex4与Java通信
三种方式:
1 flex 与普通java类通信RemoteObject
2 flex 与服务器交互HTTPService
3 flex与webservice交互WebService
1 flex 与普通java类通信RemoteObject
普通java类:
package com.flex.demo; /** *//** * 功能描述:该类用来实现flex与普通java类中的方法通信 * @author Administrator * */ public class SimpleService { public String sayHello(String name){ return "Hello,"+name; } }
配置说明:配置remoting-config.xml
<destination id="myservice">
<properties>
<source>com.flex.demo.SimpleService</source>
</properties>
</destination>
<!--flex 与普通java类通信--> <s:RemoteObject id="serv" destination="myservice" fault="serv_faultHandler(event)" result="serv_resultHandler(event)"> </s:RemoteObject>
2 flex 与服务器交互HTTPService
servlet代码
package com.flex.demo; import java.io.IOException; import javax.servlet.servletexception; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** *//** * 功能描述:该servlet用来与flex进行交互 * @author Administrator * */ @SuppressWarnings("serial") public class SimpleServiceServlet extends HttpServlet { @Override protected void service(HttpServletRequest request,HttpServletResponse response) throws servletexception,IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.getWriter().write("我是服务器"); } }
<!-- flex 与服务器交互-->
<s:HTTPService id="service" fault="service_faultHandler(event)" result="service_resultHandler(event)" url="http://localhost:8080/flexdemo/simpleServiceServlet">
</s:HTTPService>
3 flex与webservice交互WebService
<!--flex与webservice交互这里调用一个天气预报的webservice--> <s:WebService id="ws" wsdl="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl" fault="ws_faultHandler(event)" result="ws_resultHandler(event)" showBusyCursor="true"> <!-- 第二种调用webservice的方法<s:operation>--> <!-- <s:operation name="getWeatherbyCityName"> webservice中的方法名--> <s:operation name="getWeatherbyCityName"> <!--传递的参数--> <s:request> <!--参数名称必须与webservice中定义的参数名一致否则调用不成功报错--> <theCityName> {city.text} </theCityName> </s:request> </s:operation> </s:WebService>
三种方式完整的配置例子
<?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" creationComplete="service.send()" > <fx:Script> <![CDATA[ import mx.controls.Alert; import mx.rpc.events.FaultEvent; import mx.rpc.events.ResultEvent; //错误处理函数 protected function serv_faultHandler(event:FaultEvent):void { Alert.show("调用失败了:"+event.fault.message as String,"提示"); } //成功调用函数 protected function serv_resultHandler(event:ResultEvent):void { Alert.show("调用成功了:"+event.result as String,"提示"); } protected function service_faultHandler(event:FaultEvent):void { Alert.show("调用失败了:"+event.fault.message as String,"提示"); } protected function service_resultHandler(event:ResultEvent):void { Alert.show("调用成功了:"+event.result as String,"提示"); } protected function ws_faultHandler(event:FaultEvent):void { Alert.show("调用失败了:"+event.fault.message as String,"提示"); } //调用成功了 protected function ws_resultHandler(event:ResultEvent):void { trace(event.result); lbl.text=(String)(event.result); } //第一种调用webservice的方法 //此方法调用webservice protected function btn_clickHandler(event:MouseEvent):void { //ws.getWeatherbyCityName(city.text); //第二中调用webservice的方法 ws.getWeatherbyCityName.send(); } ]]> </fx:Script> <fx:Declarations> <!-- 将非可视元素（例如服务、值对象）放在此处 --> <!--flex 与普通java类通信--> <s:RemoteObject id="serv" destination="myservice" fault="serv_faultHandler(event)" result="serv_resultHandler(event)"> </s:RemoteObject> <!-- flex 与服务器交互--> <s:HTTPService id="service" fault="service_faultHandler(event)" result="service_resultHandler(event)" url="http://localhost:8080/flexdemo/simpleServiceServlet"> </s:HTTPService> <!--flex与webservice交互这里调用一个天气预报的webservice--> <s:WebService id="ws" wsdl="http://www.webxml.com.cn/WebServices/WeatherWebService.asmx?wsdl" fault="ws_faultHandler(event)" result="ws_resultHandler(event)" showBusyCursor="true"> <!-- 第二种调用webservice的方法<s:operation>--> <!-- <s:operation name="getWeatherbyCityName"> webservice中的方法名--> <s:operation name="getWeatherbyCityName"> <!--传递的参数--> <s:request> <!--参数名称必须与webservice中定义的参数名一致否则调用不成功报错--> <theCityName> {city.text} </theCityName> </s:request> </s:operation> </s:WebService> </fx:Declarations> <s:TextInput x="488" y="72" id="city"/> <s:Button x="633" y="72" label="查看" id="btn" click="btn_clickHandler(event)"/> <s:Label x="224" y="128" id="lbl" width="820" height="376"/> </s:Application>
初次接触flex的朋友,看上面的肯定很迷惑,因此这里录制了视频教程,视频的质量是蛮好的,该视频从头至尾演示了flex4整合Java的过程.为了方便在windows平台下播放,该视频默认导出格式为exe,在此说明该文件并非病毒,实乃视频文件,大家可放心观看.点我下载flex4与Java交互演示视频
视频截图:
点我下载完整的项目文件
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