import com.alibaba.fastjson.JSONObject;

 /**

  * Created by SYJ on 2017/9/13.

  */

 public class MainTest {

     public static void main(String[] args) {

         String json = "{\"code\":0,\"message\":\"没有查询到数据\",\"data\":null,\"taskId\":\"0-bb03193f-ed1f-4d32-8351-6538d329b26e\",\"time\":\"2017-09-2210:11:30\"}";

         JSONObject obj = JSONObject.parseObject(json);

         Integer code = obj.getInteger("code");

         String message = obj.getString("message");

         String taskId = obj.getString("taskId");

         System.out.println("code:" + code + ", message:" + message + ", taskId:" + taskId);

     }

 }