Question

我有这个JSONObject，它作为来自第三方API的响应返回。

[
[
    {
        "msg": "hi",
        "uuid": "fc8c5dd3-d46c-4945-894d-6160f830d815"
    },
    {
        "msg": "hihe",
        "uuid": "fc8c5dd3-d46c-4945-894d-6160f830d815"
    }
],
14281343855179004,
14281349424008428
]

我该如何解析这个？

这就是我得到的

[[{"msg":"hi","uuid":"fc8c5dd3-d46c-4945-894d-6160f830d815"},{"msg":"hihe","uuid":"fc8c5dd3-d46c-4945-894d-6160f830d815"}],14281343855179005,14281349424008427]

我的代码

  try {
                JSONObject reader = new JSONObject(message.toString());

                JSONObject sys  = reader.getJSONObject("uuid");
                String msg = sys.getString("msg");
                System.out.println(msg);



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

Answer 1

尝试，

JSONArray json = new JSONArray("[[{\"msg\":\"hi\",\"uuid\":\"fc8c5dd3-d46c-4945-894d-6160f830d815\"},{\"msg\":\"hihe\",\"uuid\":\"fc8c5dd3-d46c-4945-894d-6160f830d815\"}],14281343855179005,14281349424008427]");
JSONArray arr  = json.getJSONArray(0);

for (int i = 0; i < arr.length(); i++){
    String message = arr.getJSONObject(i).getString("msg");
    String uuid    = arr.getJSONObject(i).getString("uuid");
    System.out.println("message : "+message);
    System.out.println("uuid    : "+uuid);
}

输出：

message : hi
uuid    : fc8c5dd3-d46c-4945-894d-6160f830d815
message : hihe
uuid    : fc8c5dd3-d46c-4945-894d-6160f830d815

Answer 2

您可以直接使用JSONArray代替JSONObject

  public static void parseJson(String message) {
    try {
      JSONArray json = new JSONArray(message);    
      JSONArray elemArr = json.getJSONArray(0);

      for (int i = 0; i < elemArr.length(); i++) {
        String msg = elemArr.getJSONObject(i).getString("msg");
        System.out.println("msg=" + msg);
        String uuid = elemArr.getJSONObject(i).getString("uuid");
        System.out.println("uuid=" + uuid);        
      }
    } catch (JSONException e) {
      e.printStackTrace();
    }
  }

Answer 3

GSON是将Json转换为Java对象的好例子。

http://howtodoinjava.com/2014/06/17/google-gson-tutorial-convert-java-object-to-from-json/

谢谢，帕

在Java中解析这个JSON？

3 个答案: