java 运行javascript脚本大全

//转自：http://www.oschina.net/code/snippet_120696_4489package demo7;import java.util.Arrays;import java.util.List;import javax.script.Invocable;import javax.script.ScriptEngine;import javax.script.ScriptEngineManager;public class ScriptEngineTest {public static void main(String[] args) throws Exception {ScriptEngineManager sem = new ScriptEngineManager();ScriptEngine engine = sem.getEngineByName("javascript");// 1engine.put("msg", "just a test");String str = "msg += '!!!';var user = {name:'tom',age:23,hobbies:['football','basketball']}; var name = user.name; var hb = user.hobbies[1];";engine.eval(str);String msg = (String) engine.get("msg");String name = (String) engine.get("name");String hb = (String) engine.get("hb");System.out.println(msg);System.out.println(name + ":" + hb);// 2engine.eval("function add (a, b) {c = a + b; return c; }");Invocable jsInvoke = (Invocable) engine;Object result1 = jsInvoke.invokeFunction("add", new Object[] { 10, 5 });System.out.println(result1);// 3Adder adder = jsInvoke.getInterface(Adder.class);int result2 = adder.add(10, 35);System.out.println(result2);// 4engine.eval("function run() {print('www.java2s.com');}");Invocable invokeEngine = (Invocable) engine;Runnable runner = invokeEngine.getInterface(Runnable.class);Thread t = new Thread(runner);t.start();t.join();// 5String jsCode = "importPackage(java.util);var list2 = Arrays.asList(['A', 'B', 'C']); ";engine.eval(jsCode);List<String> list2 = (List<String>) engine.get("list2");for (String val : list2) {System.out.println(val);}}}interface Adder {int add(int a, int b);}//高级2callbackpublic class JsCallback{  public static void main(String[] args) throws Exception{   ScriptEngineManager factory = new ScriptEngineManager();   ScriptEngine engine = factory.getEngineByName("JavaScript");   engine.put("cb", new JsCallback());   engine.eval("println('Doing something in javascript here first');" +     "cb.apply('bar');");  }  public void apply(String s){    System.out.println("Back in java code here: " + s);  }}//高级2上下文转自：http://www.ibm.com/developerworks/cn/java/j-lo-jse66/            import javax.script.*;public class ScopeTest {    public static void main(String[] args) throws Exception {        String script=" println(greeting) ";        ScriptEngineManager manager = new ScriptEngineManager();        ScriptEngine engine = manager.getEngineByName("javascript");                //Attribute from ScriptEngineManager        manager.put("greeting", "Hello from ScriptEngineManager");        engine.eval(script);        //Attribute from ScriptEngine        engine.put("greeting", "Hello from ScriptEngine");        engine.eval(script);        //Attribute from eval method        ScriptContext context = new SimpleScriptContext();        context.setAttribute("greeting", "Hello from eval method",             ScriptContext.ENGINE_SCOPE);        engine.eval(script,context);            }}