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传递String类型到J2EE，以及接受来自于J2EE的返回值String类型
传递Object类型到J2EE，以及接受来自于J2EE的返回值Object类型
传递Array类型到J2EE，以及接受来自于J2EE的返回值List类型
接自 Flex + LCDS + Java 的Web 项目(2) HelloWorld
[url]http://quasimodo-es.iteye.com/blog/503084[/url]
.mxml文件：
<?xml version="1.0" encoding="utf-8"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:RemoteObject id="MyRO" destination="HelloWorldRO"/> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; import mx.controls.Alert; import mx.rpc.events.ResultEvent; //hello world 测试通信 private function onClick() : void{ MyRO.sayHello(" java "); } //向JAVA端传递String类型的值 private function onStringClick() : void{ var strArgs : String = " hello java =========== ";// MyRO.addEventListener(ResultEvent.RESULT,handleStringResult); MyRO.getFlexString(strArgs);//调用J2EE的方法 } //接受返回的String private function handleStringResult(event : ResultEvent) : void{ Alert.show(event.result.toString()); } //传递Object private function onObjectClick() : void{ var obj : User = new User(); obj.username = " flex username === "; obj.password = " flex password === "; MyRO.addEventListener(ResultEvent.RESULT,handleObjectResult); MyRO.getFlexObject(obj); } //接受返回的Object private function handleObjectResult(event : ResultEvent) : void{ var obj : User = event.result as User; Alert.show(obj.username + "\n" + obj.password); } //传递Array private function onArrayClick() : void{ var arr : Array = new Array(); for(var i : int = 0 ; i < 4 ; i++){ var obj : User = new User(); obj.username = " flex username === " + i; obj.password = " flex password === " + i; arr.push(obj); } MyRO.addEventListener(ResultEvent.RESULT,handleArrayResult); MyRO.getFlexArray(arr); } //接受返回的List private function handleArrayResult(event : ResultEvent) : void{ var ac : ArrayCollection = event.result as ArrayCollection; for(var i : int = 0 ; i < ac.length ; i++){ var user : User = ac.getItemAt(i) as User; Alert.show(user.username + " \n " + user.password); } } ]]> </mx:Script> <mx:Button x="52" y="29" label="hello java" click="onClick()"/> <mx:Button x="52" y="119" label="String" click="onStringClick()"/> <mx:Button x="52" y="225" label="Object" click="onObjectClick()"/> <mx:Button x="52" y="328" label="Array" click="onArrayClick()"/></mx:Application>
Flex 端的 User类
package{ [Bindable] [RemoteClass(alias='com.User')]//序列化，对应于J2EE的User类，User类中必须有默认构造方法 public class User { public var username : String; public var password : String; public function User() { } }}
J2EE和Flex通信的接口：
package com;import java.util.ArrayList;import java.util.List;import flex.messaging.io.amf.ASObject;public class Hello {// 方法必须是public public void sayHello(String str){ System.out.println(" hello world , and hello " + str); } //接受从Flex 传来的参数，并返回一个String参数 public String getFlexString(String str){ System.out.println(str); return " hello Flex ============== "; } //接受从Flex 传来的参数，并返回一个User参数 public User getFlexObject(User user){ System.out.println(user.getUsername() + "\n" + user.getPassword()); User userVO = new User(); userVO.setUsername(" java username == "); userVO.setPassword(" java password =="); return userVO; } //接受从Flex 传来的参数Array，并返回一个List参数 public List getFlexArray(List list){ List returnList = new ArrayList<User>(); for(int i = 0 ; i < list.size() ; i++){ User user = (User) list.get(i); System.out.println(user.getUsername() + "\n" + user.getPassword()); User returnUser = new User(); returnUser.setUsername(" java username " + i); returnUser.setPassword(" java password " + i); returnList.add(returnUser); } return returnList; }}
Java的User类
package com;public class User { private String username; private String password; public User() { } public String getUsername() { return username; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; }}
项目源码下载：[url]http://download.csdn.net/source/1780264[/url]
相关资源：flex lcds.war
