CODEWITHSUNDEEP
javajsongson
Byron Figueroa
Byron Figueroa

Reputation: 49

Deserializer Json with Gson in java

I want to parse data from Json with GSon in java I have this json 

    {
      "time": 3.251,
      "about_us": {
        "dc:identifier": "some string",
        "dc:title": "some string",
        "dc:contributor": [
          "1",
          "2"
        ],
        "dc:hasversion": "some string"
      },
      "results": {
        "ocw": [
          {
            "title": "some string",
            "url": "some string",
            "language": "some string",
            "university_name": "some string",
            "university_url": "some string",
            "description": "",
            "uri": "some string5",
            "similar": "some string",
            "resourceType": "OCW",
            "relatedoers": [

                    ]
          }
        ],
        "otheroer": [

        ]
      }
    }

I only need to get the "ocw" field, I am confused how to do this. I created corresponding java classes for the json objects and use @SerializedName annotations to specify the field name to grab for each data member.

The classes are as follows.

Results

Ocw

Upvotes: 0

Views: 107

Answers (1)

Ruslan Ostafiichuk
Ruslan Ostafiichuk

Reputation: 4712

If you have this json stored in some jsonString:

    JsonObject jsonObject = (JsonObject) new JsonParser().parse(jsonString);
    JsonElement jsonElement = jsonObject.getAsJsonObject("results").getAsJsonArray("ocw").get(0);
    MyObject object = new GsonBuilder().create().fromJson(jsonElement, MyObject.class);

MyObject should reflect this part:

        "title": "some string",
        "url": "some string",
        "language": "some string",
        "university_name": "some string",
        "university_url": "some string",
        "description": "",
        "uri": "some string5",
        "similar": "some string",
        "resourceType": "OCW",
        "relatedoers": [

                ]

Upvotes: 1

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