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>
调用
<!--flex 与普通java类通信-->
<s:RemoteObject id="serv" destination="myservice" fault="serv_faultHandler(event)" result="serv_resultHandler(event)">
</s:RemoteObject>
2flex 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");
}
}
调用
<!-- 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>
3flex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