JAVA和Flex敏捷调用(二)

    Flex在和java调用过程中，其实有更加灵活的办法来提高系统的敏捷度，极大提高系统的耦合和开发效率。在这里我继续给大家介绍一下，敏捷调用中的java动态代码调用。

    先看java的类(BeanShell)这里主要是接收java代码来动态调用的

    package com.shine.framework.beanShell;import bsh.Interpreter;public class BeanShell {public Object executBeanShell(String code) {try {Interpreter inter = new Interpreter();inter.eval(code);return inter.get("result");} catch (Exception e) {e.printStackTrace();return null;}}}

 

   然后把该类配置到remoting-config.xml

  <destination id="beanShell"><properties><source>com.shine.framework.beanShell.BeanShell</source></properties></destination>

 

  再写一个静态的beanShell在actionscript，以单例模式

  package com.shine.framework.beanShell{import mx.rpc.events.FaultEvent;import mx.rpc.events.ResultEvent;import mx.rpc.remoting.mxml.RemoteObject;import mx.controls.Alert;public class BeanShell{private static var _instance:BeanShell;private var method:Function;public function BeanShell(enforcer:SingletonEnforcer){}public static function getInstance():BeanShell{if (BeanShell._instance == null){BeanShell._instance=new BeanShell(new SingletonEnforcer());}return BeanShell._instance;}public function beanShell(code:String, method:Function=null):void{this.method=method;var beanShell:RemoteObject=new RemoteObject;beanShell.destination="beanShell";beanShell.addEventListener(FaultEvent.FAULT, error);beanShell.endpoint="messagebroker/amf";beanShell.executBeanShell(code);beanShell.addEventListener(ResultEvent.RESULT, getRomoteHelloRes);}private function getRomoteHelloRes(e:ResultEvent):void{if(this.method!=null){this.method.call(this, e.result);}}private function error(e:FaultEvent):void{Alert.show(e.message.toString());}}}class SingletonEnforcer{}

 

  调用执行的例子：

  <?xml version="1.0" encoding="utf-8"?><mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300"> <mx:Script> <!--[CDATA[ import com.shine.framework.beanShell.BeanShell; private function beanShellTest(){ BeanShell.getInstance().beanShell("System.out.println(/"测试/");"); } ]]--> </mx:Script><mx:Button label="test" click="beanShellTest()" /></mx:Canvas>

 

  如果要调用其他类：

  <?xml version="1.0" encoding="utf-8"?><mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="400" height="300"> <mx:Script> <!--[CDATA[ import com.shine.framework.beanShell.BeanShell; private function beanShellTest(){ BeanShell.getInstance().beanShell("import test.Test;Test test=new Test();System.out.println(test.show());"); } ]]--> </mx:Script><mx:Button label="test" click="beanShellTest()" /></mx:Canvas> 

 

 

   这个设计灵活性非常高，有些朋友说维护起来不是很容易，这个就要看你怎么设计哦