json转对象

JSON.parseObject方法可以实现json转化为对象

public class Test1 {
    public static void main(String[] args) {
        String jsonStr = "{n" +
                " "code": "200",n" +
                " "data": [n" +
                "        {n" +
                "            "questionId": "1",n" +
                "            "index": "50.0",n" +
                "t    "optionProportionList": [n" +
                "                {n" +
                "                    "optionId": "1",n" +
                "                    "optionProportion": "0.2"n" +
                "                },n" +
                "                {n" +
                "                    "optionId": "2",n" +
                "                    "optionProportion":"0.2"n" +
                "                }n" +
                "            ]n" +
                "        }n" +
                "t]n" +
                "}";
        J1 j1 = JSON.parseObject(jsonStr, J1.class);
         

        }
    }
}

结果如下：

复制的json到Java实体对象生成可以借助这个网站：[https://www.json.cn/json/json2csharp.html]