java - java读取json数据

Question

我面临的情况是，我必须读取 json 数据并将其插入到 Sqlite 表中。但是json数据的格式是这样的:

{
    "result": "success",
    "data": {
        "userId": "873",
        "volume": "0.5",
        "schoolId": "0",
        "schoolName": "",
        "preferredLanguageId": "1",
        "fname": "robin",
        "lname": "singh",
        "email": "rob@live.com",
        "password": "password1111",
        "isParent": "0",
        "countryId": "254",
        "stateId": "143",
        "state": "",
        "city": "san diego",
        "coins": "0",
        "zip": "",
        "players": []
    }
}

JSONObject json = new JSONObject(jsonString);
String uname=json.getString("fname");

但是我无法获取字符串 uname 中的名字。

Answer 1

String uname=json.getString("fname");

不起作用，因为 fname 属性嵌套在 data 属性中。因此，您需要执行以下操作:

String uname = json.getJSONObject("data").getString("fname");