java - 使用 Gson get() 从 Json 获取值

Question

给定以下 Json 数据:

 "values": [
{
  "type": "any",
  "value": "MO918038B",
  "key": "nino"
},
{
  "type": "any",
  "value": "1956-11-18",
  "key": "dob"
},
{
  "type": "any",
  "value": "q",
  "key": "memorableWord"
},
{
  "type": "any",
  "value": "E13468",
  "key": "pin"
},
]

以及以下 Java 类:

    public void doStuff() {

    try (Reader reader = new FileReader("global-vars.json")) {

        JsonObject json = new Gson().fromJson(reader, JsonObject.class);

        String reg = json.get("values").toString();

        System.out.println(reg);

    } catch (IOException e) {
        e.printStackTrace();
    }

}

搜索后，我不清楚如何最好地获取“nino”的“值”，即=“MO918038B”

Answer 1

Type listType = new TypeToken<List<YourObjectClass>>() {}.getType();
List<YourObjectClass> yourList = new Gson().fromJson(yourJson, listType);