Flex与Java中的Object进行交互,需要准备三个内容,一个是Flex主文件,也就是我们的mxml文件,两个Java类,一个remoting-config.xml。为了减少程序的复杂性,这里只证明Flex可以调用 Java中Object进行交互,不进行与数据库的交互。
新建一个Java实体类:SpeakUser.java, 如下:
- package com.cx.model;
- import java.io.Serializable;
- public class SpeakUser implements Serializable{
- private static final long serialVersionUID = -4154296753553491429L;
- private String userName;
- private String userPwd;
- private String userTel;
- private String userMail;
- public String getUserName() {
- return userName;
- }
- public void setUserName(String userName) {
- this.userName = userName;
- }
- public String getUserPwd() {
- return userPwd;
- }
- public void setUserPwd(String userPwd) {
- this.userPwd = userPwd;
- }
- public String getUserTel() {
- return userTel;
- }
- public void setUserTel(String userTel) {
- this.userTel = userTel;
- }
- public String getUserMail() {
- return userMail;
- }
- public void setUserMail(String userMail) {
- this.userMail = userMail;
- }
- }
有的作者说这个实体类需要当做Java代码中方法的返回值传递给Flex中的AS代码,所以需要继承Serializable接口,否则将导致异常的发生。但是经过笔者测试,这个Serializable是可选的,即使不继承,也不会出现什么问题,可能是由于flex的版本所决定的吧。
再创建一Java对象:IntroduceOneself.java,供Flex调用, 类中 以SpeakUser作为参数。代码如下:
- package com.cx.action;
- import com.cx.model.*;
- public class IntroduceOneself {
- public String speak(SpeakUser user){
- System.out.println("Hello, My Name is: " + user.getUserName());
- System.out.println("My telephone is: " + user.getUserTel());
- System.out.println("My Email is: " + user.getUserMail());
- return "名字叫:" + user.getUserName() + ", 电话是: "
- + user.getUserTel() + ", 邮箱是: "+user.getUserMail()
- + "来访问您,请问您是否要接见?";
- }
- }
然后创建一个ActionScript类:SpeakUser.as, 用于接受实体类SpeakUser.java的返回值,这里的[Bindable][RemoteClass]是和java代码中的 SpeakUser.java类关联起来。这样利用类型转换将java对象转换成AS对象。代码如下:
- package com.flex.model
- {
- [Bindable]
- [RemoteClass(alias="com.cx.model.SpeakUser")]
- public class SpeakUser
- {
- public var userName:String="";
- public var userPwd:String ="";
- public var userTel:String ="";
- public var userMail:String ="";
- public function SpeakUser()
- {
- }
- }
- }
修改Flex主文件:BlazObject.mxml,在其中调用java类,代码如下:
- <?xml version="1.0" encoding="utf-8"?>
- <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" minWidth="955" minHeight="600">
- <mx:Script>
- <![CDATA[
- import com.flex.model.SpeakUser;
- import mx.controls.Alert;
- import mx.rpc.events.ResultEvent;
- public function remotingHelloJavaFlex():void
- {
- var user:SpeakUser = new SpeakUser();
- user.userName = nameInputTxt.text;
- user.userMail = txtUserMail.text;
- user.userPwd = txtPwd.text;
- user.userTel = txtTel.text;
- someOneCome.speak(user);
- someOneCome.addEventListener(ResultEvent.RESULT,getRoHelloRes);
- }
- private function getRoHelloRes(e:ResultEvent):void{
- Alert.show(e.result.toString());
- }
- private function failed():void{
- Alert.show("cuowu");
- }
- ]]>
- </mx:Script>
- <mx:Button label="JAVA Object + FLEX 通信" click="remotingHelloJavaFlex();" x="142" y="234"
- fontSize="12" width="209"/>
- <mx:Label text="姓名" x="121" y="55" fontSize="15"/>
- <mx:TextInput id="nameInputTxt" x="170" y="55"/>
- <mx:Label x="121" y="103" fontSize="15" text="密码:"/>
- <mx:TextInput id = "txtPwd" x="170" y="106"/>
- <mx:Label x="121" y="145" fontSize="15" text="电话:"/>
- <mx:Label x="121" y="187" fontSize="15" text="邮箱:"/>
- <mx:TextInput id="txtTel" x="170" y="148"/>
- <mx:TextInput id="txtUserMail" x="170" y="190"/>
- <mx:RemoteObject destination="someOneComeDes" id="someOneCome" endpoint="/BlazDSObject/messagebroker/amf" fault="failed()" />
- </mx:Application>
在这里,Flex是通过AMF协议与Java对象进行交互的,其中endpoint定义了影射文件的消息协议,这个文件来自/WEB-INF/flex/services-config.xml中,影射对象的位置是通过remoting- service.xml影射的代码如下:
- <channel-definition id="my-secure-amf" class="mx.messaging.channels.SecureAMFChannel">
- <endpoint url="https://{server.name}:{server.port}/{context.root}/messagebroker/amfsecure" class="flex.messaging.endpoints.SecureAMFEndpoint"/>
- <properties>
- <add-no-cache-headers>false</add-no-cache-headers>
- </properties>
- </channel-definition>
remoting-service.xml
- <?xml version="1.0" encoding="UTF-8"?>
- <service id="remoting-service"
- class="flex.messaging.services.RemotingService">
- <adapters>
- <adapter-definition id="java-object" class="flex.messaging.services.remoting.adapters.JavaAdapter" default="true"/>
- </adapters>
- <default-channels>
- <channel ref="my-amf"/>
- </default-channels>
- <destination id="someOneComeDes">
- <properties>
- <source>
- com.cx.action.IntroduceOneself
- </source>
- </properties>
- </destination>
- </service>
原文链接:http://blog.csdn.net/shehun1/article/details/6691462
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