CODEWITHSUNDEEP
javajsonkotlingson
Iaroslav Postovalov
Iaroslav Postovalov

Reputation: 2463

Check if JSON fits the needed class using GSON

I have a class like

data class Data(
    val field1: Int = 123
    val field2: String = "Foo"
)

I have JSON like

{"field1": 123, "field2": "Foo"}

How can I check if my JSON really represents the structure of the class using Google GSON?

Upvotes: 0

Views: 1986

Answers (1)

abhinavsinghvirsen
abhinavsinghvirsen

Reputation: 2044

Hi bro there are several Ways first by using code

    import org.json.*;

public boolean isValidJSONTest(String yourjsonString) {
    try {
        new JSONObject(yourjsonString);
    } catch (JSONException ex) {

        try {
            new JSONArray(yourjsonString);
        } catch (JSONException ex1) {
            return false;
        }
    }
    return true;
}

For Gson code is like

Gson gson = new Gson();
try {
    Object o = gson.fromJson(json, Object.class);
    System.out.println(new GsonBuilder().setPrettyPrinting().create().toJson(o));
} catch (Exception e) {
    System.out.println("invalid json format");
}

second you can use browser console and paste your string in console and enter enter image description here

third they are several website that can validate json format or view etc https://jsonlint.com/

Upvotes: 1

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