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blog名称:邢红瑞的blog
日志总数:523
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建立时间:2004年12月20日 |
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 [脚本语言]java里面使用javascript(三):使用java的interface
原创空间, 软件技术, 电脑与网络
邢红瑞 发表于 2006/5/22 18:15:09 |
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在java代码中还可实现java的interfacepackage test;
/** * * @author hongrui xing */import javax.script.*;public class RunnableImpl { public static void main(String[] args) throws Exception { ScriptEngineManager manager = new ScriptEngineManager(); ScriptEngine engine = manager.getEngineByName("JavaScript");
// JavaScript code in a String String script = "function run() { println('run called'); }";
// evaluate script engine.eval(script);
Invocable inv = (Invocable) engine;
// get Runnable interface object from engine. This interface methods // are implemented by script functions with the matching name. Runnable r = inv.getInterface(Runnable.class);
// start a new thread that runs the script implemented // runnable interface Thread th = new Thread(r); th.start(); }}使用OOP机制package test;
/** * * @author hongrui xing */import javax.script.*;public class RunnableImplObject { public static void main(String[] args) throws Exception { ScriptEngineManager manager = new ScriptEngineManager(); ScriptEngine engine = manager.getEngineByName("JavaScript");
// JavaScript code in a String String script = "var obj = new Object(); obj.run = function() { println('run method called'); }";
// evaluate script engine.eval(script);
// get script object on which we want to implement the interface with Object obj = engine.get("obj");
Invocable inv = (Invocable) engine;
// get Runnable interface object from engine. This interface methods // are implemented by script methods of object 'obj' Runnable r = inv.getInterface(obj, Runnable.class);
// start a new thread that runs the script implemented // runnable interface Thread th = new Thread(r); th.start(); }} |
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