JSON字符串自动转换成Map对象

 public static Map parserToMap(String s){
		Map map=new HashMap();
		JSONObject json=JSONObject.fromObject(s);
		Iterator keys=json.keys();
		while(keys.hasNext()){
			String key=(String) keys.next();
			String value=json.get(key).toString();
			if(value.startsWith("{")&&value.endsWith("}")){
				map.put(key, parserToMap(value));
			}else{
				map.put(key, value);
			}

		}
		return map;
	}