6.游戏特别离不开脚本（2）-获取脚本引擎

import java.util.List;  
  
import javax.script.ScriptEngine;  
import javax.script.ScriptEngineFactory;  
import javax.script.ScriptEngineManager;  
import javax.script.ScriptException;  
  
public class GetSupportedScriptingEngine {  
    public static void main(String[] args) {  
  
        //创建一个ScriptEngineManager  
        ScriptEngineManager manager = new ScriptEngineManager();  
        //取得所有ScriptEngineFactory  
        List<ScriptEngineFactory> factories = manager.getEngineFactories();  
        //遍历输出  
        for (ScriptEngineFactory factory : factories) {  
            System.out.println("EngineName      = " + factory.getEngineName());  
            System.out.println("EngineVersion   = " + factory.getEngineVersion());  
            System.out.println("LanguageName    = " + factory.getLanguageName());  
            System.out.println("LanguageVersion = " + factory.getLanguageVersion());  
            System.out.println("Extensions      = " + factory.getExtensions());  
  
            List<String> names = factory.getNames();  
            for (String name : names) {  
                System.out.println("Engine Alias = " + name);  
            }  
              
            //通过factory获取ScriptEngine  
            
//            ScriptEngine scriptEngine = factory.getScriptEngine() ;  
            ScriptEngine scriptEngine = manager.getEngineByExtension("js") ;//其他方式获取  
//            ScriptEngine scriptEngine2 = manager.getEngineByName("JavaScript") ;//其他方式获取  
            try {  
                //脚本引擎执行JavaScript语句  
                scriptEngine.eval("var arr = new Array() ; arr.push(1); print(arr.pop())") ;  
            } catch (ScriptException e) {  
                e.printStackTrace();  
            }  
        }  
    }  
}  

结果：

EngineName      = Mozilla Rhino
EngineVersion   = 1.6 release 2
LanguageName    = ECMAScript
LanguageVersion = 1.6
Extensions      = [js]
Engine Alias = js
Engine Alias = rhino
Engine Alias = JavaScript
Engine Alias = javascript
Engine Alias = ECMAScript
Engine Alias = ecmascript
1

for遍历了但始终只有一个结果，难道支持js的哇！