flex4与Java交互

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flex4与Java交互

        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