JSON conversion exception of Android Java object

I face JSON conversion exception. When I convert JSON to Java object

This is my JSON

[  
   {  
      "PrefrenceId":"228f176d-d224-32d7-9bb5-6287a06a68e8",
      "UserId":"327e6c64-bc90-3ae8-8f7d-72837581ca13",
      "QuestionnaireId":"41f31b11-47f5-3e29-8c88-1a3615c978a7",
      "Suggestions":"",
      "Explanation":"",
      "IsActive":true,
      "IsDelete":false,
      "DateCreated":"2016-11-01 09:53:00.000",
      "DateUpdated":"2016-11-01 09:53:17.000"
   },
   {  
      "PrefrenceId":"52a74739-bdd3-33ac-a83f-72f60b1992b5",
      "UserId":"327e6c64-bc90-3ae8-8f7d-72837581ca13",
      "QuestionnaireId":"8cd5ac8e-89db-3d7b-bb2d-4e6735b245de",
      "Suggestions":"",
      "Explanation":"",
      "IsActive":true,
      "IsDelete":false,
      "DateCreated":"2016-11-01 09:48:53.000",
      "DateUpdated":"2016-11-01 09:53:15.000"
   },
   {  
      "PrefrenceId":"ae7fc877-b26a-34d3-a5f3-244c7e777e08",
      "UserId":"327e6c64-bc90-3ae8-8f7d-72837581ca13",
      "QuestionnaireId":"d3b98cde-111c-30d5-a4c9-412a76b656eb",
      "Suggestions":"Camping",
      "Explanation":"",
      "IsActive":true,
      "IsDelete":false,
      "DateCreated":"2016-11-01 09:53:02.000",
      "DateUpdated":"2016-11-01 09:53:19.000"
   },
   {  
      "PrefrenceId":"bcac0da7-31a6-345f-be82-ddff17c29b35",
      "UserId":"327e6c64-bc90-3ae8-8f7d-72837581ca13",
      "QuestionnaireId":"8fb1bda7-7ec8-3538-8aa8-ff84637764a4",
      "Suggestions":"",
      "Explanation":"",
      "IsActive":true,
      "IsDelete":false,
      "DateCreated":"2016-11-01 09:53:07.000",
      "DateUpdated":"2016-11-01 09:53:22.000"
   },
   {  
      "PrefrenceId":"ff46ce3c-70cb-3d25-8dbb-10e9c46d4c2d",
      "UserId":"327e6c64-bc90-3ae8-8f7d-72837581ca13",
      "QuestionnaireId":"3afffc17-30e4-311f-a0fc-8daa3bda6c98",
      "Suggestions":"",
      "Explanation":"",
      "IsActive":true,
      "IsDelete":false,
      "DateCreated":"2016-11-01 09:53:05.000",
      "DateUpdated":"2016-11-01 09:53:20.000"
   }
]

My POJO courses:-

public class SurvivorZAMQuestionList implements Serializable {
    public List<SurvivorZAMQuestionnaire> survivorZAMQuestionnaires;
}


public class SurvivorZAMQuestionnaire implements Serializable {
    public String Suggestions;

    public String PrefrenceId;

    public String IsActive;

    public String IsDelete;

    public String DateCreated;

    public String DateUpdated;

    public String UserId;

    public String QuestionnaireId;

    public String Explanation;
}

However, when I convert the JSON response to JSON, it displays the following error: - com.google.gson.jsonsyntaxexception: java.lang.illegalstateexception: expecting begin_ Object, but in line 1 and column 2, it is begin_ ARRAY

Who can tell me what I lack in POJO class. Any form of holding should be appreciated

resolvent:

Your response is correct, but your parsing is incorrect. Therefore, first add gson to your gradle file

Compile 'com. Google. Code. Gson: gson: 2.4'

Now, use the following code to parse the response

try {
        JSONArray array = new JSONArray("put your response here");
        Gson gson =  new Gson();
        for (int i = 0 ; i <array.length();i++)
        {
            SurvivorZAMQuestionnaire obj = new SurvivorZAMQuestionnaire();
            obj.add(gson.fromJson(array.getJSONObject(i).toString(),SurvivorZAMQuestionnaire.class));
        }
    } catch (JSONException e) {
        e.printStackTrace();
    }

Add your obj to the list and display it:)

The content of this article comes from the network collection of netizens. It is used as a learning reference. The copyright belongs to the original author.
THE END
分享
二维码
< <上一篇
下一篇>>