import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
public class ScriptTest {
public static void main(String[] args) throws Exception {
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("JavaScript");
testScriptVariables(engine);// 婕旂ず濡備綍鏆撮湶Java瀵硅薄涓鴻剼鏈璦鐨勫叏灞鍙橀噺
testInvokeScriptMethod(engine);// 婕旂ず濡備綍鍦↗ava涓皟鐢ㄨ剼鏈璦鐨勬柟娉?br />
testScriptInterface(engine);// 婕旂ず鑴氭湰璇█濡備綍瀹炵幇Java鐨勬帴鍙?br />
testUsingJDKClasses(engine);// 婕旂ず鑴氭湰璇█濡備綍浣跨敤JDK騫沖彴涓嬬殑綾?br />
}
public static void testScriptVariables(ScriptEngine engine)
throws ScriptException {
File file = new File("e:/test/aaa.txt");
engine.put("f", file);
engine.eval("println('Total Space:'+f.getTotalSpace())");
}
public static void testInvokeScriptMethod(ScriptEngine engine)
throws Exception {
String script = "function hello(name) { return 'Hello,' + name;}";
engine.eval(script);
Invocable inv = (Invocable) engine;
String res = (String) inv.invokeFunction("hello", "Scripting");
System.out.println("res:" + res);
}
public static void testScriptInterface(ScriptEngine engine)
throws ScriptException {
String script = "var obj = new Object(); obj.run = function() { println('run method called'); }";
engine.eval(script);
Object obj = engine.get("obj");
Invocable inv = (Invocable) engine;
Runnable r = inv.getInterface(obj, Runnable.class);
Thread th = new Thread(r);
th.start();
}
public static void testUsingJDKClasses(ScriptEngine engine)
throws Exception {
// Packages鏄剼鏈璦閲岀殑涓涓叏灞鍙橀噺,涓撶敤浜庤闂甁DK鐨刾ackage
String js = "function doSwing(t){var f=new Packages.javax.swing.JFrame(t);f.setSize(400,300);f.setVisible(true);}";
engine.eval(js);
Invocable inv = (Invocable) engine;
inv.invokeFunction("doSwing", "Scripting Swing");
}
}
import java.io.File;
import java.io.FileReader;
import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
public class 鎵цJS鏂囦歡 {
public static void main(String[] args) {
try {
鎵цJS鏂囦歡 engine = new 鎵цJS鏂囦歡();
engine.exeFunAdd(100, 200);
} catch(Exception e) {
e.printStackTrace();
}
}
public String getPath() {
File f = new File("");
return f.getAbsolutePath() + "/js/";
}
public void exeFunAdd(int a ,int b) {
ScriptEngineManager sem = new ScriptEngineManager();
ScriptEngine jsEngine = sem.getEngineByName("javascript");
try {
jsEngine.eval(new FileReader(getPath()+"funs.js"));
} catch (Exception e) {
e.printStackTrace();
}
Invocable invocableEngine = (Invocable)jsEngine;
try {
Object ret = invocableEngine.invokeFunction("add", a,b);
System.out.println(ret);
} catch (Exception e) {
}
}
}
鍦ㄧ洰褰曚笅鏈変釜js鐩綍涓嬮潰鏈変釜funs.js
function add(a, b) {
return a+b;
}