Flex3与BlazeDS HelloWorld 详解

BlazeDS的下载和介绍：
http://opensource.adobe.com/wiki/display/blazeds/Release+Builds
有Tomcat的下载
http://flexorg.wip3.adobe.com/blazeds/3.0.x/milestone/3978/blazeds-bin-3.2.0.3978.zip
没Tomcat的下载
http://flexorg.wip3.adobe.com/blazeds/3.0.x/milestone/3978/blazeds-turnkey-3.2.0.3978.zip

下载后将blazeds.war部署到tomcat下即可。

Flex Builder插件的安装不再作介绍

开发工作为MyEclipse:

1.新建一个Flex工程

按照图中进行配置
2.下一步:

指定已经下载的blazeds.war
3.下一步.

配置url
4.完成后右键配置工程属性:

注意context的修改，不然运行程序会报404.

5.新建一个测试类:

package com;

public class HelloWorld
{
    public String say(String username)
    {
        System.out.println("hello");
        return "你好!" + username;
    }
    
    public String login(String username,String password)
    {
        System.out.println("login");
        if(username.equals("admin") && password.equals("admin"))
        {
            return "success";
        }
        else
        {
            return "failure";
        }
    }
}

6.配置web-inf/flex 下的remoting-config.xml文件：

<?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>
    <!-- 目标java类 -->
    <destination id="helloworld">
        <properties>
            <source>com.HelloWorld</source>
        </properties>
    </destination>    
</service>

7.编写mxml文件：

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">

<mx:Script>
    <![CDATA[
        import mx.rpc.events.ResultEvent;
        import mx.controls.Alert;
        //hello事件
        private function helloClick():void
        {
            this.hello.say(this.username.text);
        }
        
        //登录事件 
        private function loginClick():void
        {
            this.login.login(this.username.text,this.password.text);
        }
        //处理hello事件 返回值
        private function resultHandler(e:ResultEvent):void
        {
            Alert.show(e.result.toString());
        }
        //处理登录事件返回值
        private function resultLoginHandler(e:ResultEvent):void
        {
            Alert.show(e.result as String);
        }
        
    ]]>
</mx:Script>    
    
    <!--远程对象调用-->
<mx:RemoteObject id="hello" destination="helloworld" result="resultHandler(event)" />    
<mx:RemoteObject id="login" destination="helloworld" result="resultLoginHandler(event)" />        

    <mx:TextInput id="username" x="187" y="99" width="119"/>
    <mx:Label x="123" y="101" text="username:"/>
    <mx:Label x="123" y="141" text="password:"/>
    <mx:TextInput id="password" x="187" y="139" width="119" />
    
    <mx:Button x="241" y="184" label="Login" click="loginClick()"/>
    <mx:Button x="123" y="184" label="HelloWorld" click="helloClick()"/>
    
    
</mx:Application>

7.找到bin-debug下的secondBlaze.html右键选择在Run on Server即可。

效效果图
源码下载