java 嵌入js线程异步调用和验证字符串是否json格式

/**
     * java嵌入js验证字符串是否json格式
     * 注：如果是json的话eval中要加"("和")"花括号，否则不能识别json出现异常
     * 异常：javax.script.ScriptException: sun.org.mozilla.javascript.internal.EvaluatorException: missing ; before statement (<Unknown source>#1) in <Unknown source> at line number 1
     * @param jsonStr
     * @return
     */
    public static boolean isJson(String jsonStr){
        boolean isFalg = true;
        try{
        	Object object = (Object)new ScriptEngineManager().getEngineByName("js").eval("("+jsonStr+")");
        	System.out.println(GsonUtil.transObjectToJson(object));
        }catch (ScriptException e){
        	isFalg = false;
            System.out.println ("json格式有误");
            e.printStackTrace();
        }
        return isFalg;
    }
    
    /**
     * java嵌入js使用线程异步调用
     * 注意：print打印时要带双引号转义，否则会出现异常
     * 异常：javax.script.ScriptException: sun.org.mozilla.javascript.internal.EcmaError: ReferenceError: "异步调用" is not defined.
     */
    public static void jsRunnable(){
    	ScriptEngineManager sem = new ScriptEngineManager();
    	ScriptEngine se = sem.getEngineByName("js");
    	try {
			se.eval("function run(){print(\"异步调用\");}");
			Invocable invokeEngine = (Invocable)se;
			Runnable runner = invokeEngine.getInterface(Runnable.class);
			Thread t = new Thread(runner);
			t.start();
			t.join();
		} catch (Exception e) {
			e.printStackTrace();
		}
    }
    
    /**
     * 测试用例
     * @param args
     */
	public static void main(String[] args) {
		// java嵌入js验证字符串是否json格式
		String s = "{\"name\":\"1\"}";
		System.out.println(isJson(s));
		
		// java嵌入js使用线程异步调用
		jsRunnable();
	}