使用FastJson從json串中根據key獲取value

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\":\"沒有查詢到數據\",\"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);
    }
}