How do I extract exact value from Json

Question

Below Json I want to get only first mail value ([email protected]) using java. Please anybody can suggest how do I extract exact value from below Json. Thanks in advance.

{
  "profiles": [
    {
      "userId": "1234",
      "content": {
        "address": {
          "business": {
            "country": "IN",
            "locality": "Chennai",
          }
        },
        "name": {
          "first": "abc",
          "last": "abc"
        },
        "mail": [
          "[email protected]",
          "[email protected]"
        ]
      }
    }
  ]
}

You may need to verify your requirements. JSON does not impose an ordering to its records. Therefore, the email address you're looking for would not always be the first one, unless you can ensure that it always would be the first one. — dan, Jul 28 '22 at 12:15
store your json in an variable like JSONObject obj = _your data_ . Then you can access the first mail value via obj[0].mail — Stormtrooper CWR, Jul 28 '22 at 12:16
Does this answer your question? [How to parse JSON in Java](https://stackoverflow.com/questions/2591098/how-to-parse-json-in-java) — f1sh, Jul 28 '22 at 12:19
Parse your JSON and traverse it to location you want. There are many JSON libraries for Java, if you want more specific solution you will need to specify which library you want to use. — Pshemo, Jul 28 '22 at 12:31
You can also use [JsonPath](https://github.com/json-path/JsonPath). With it your code can look like `String email = JsonPath.read(jsonStr, "$.profiles[0].content.mail[0]");` — Pshemo, Jul 28 '22 at 13:03

score 1 · Accepted Answer · answered Jul 28 '22 at 13:13

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;


public class Test {
    public static void main(String[] args) throws JSONException {
        String jsonstring = "{\"profiles\":[{\"userId\":\"1234\",\"content\":{\"address\":{\"business\":{\"country\":\"IN\",\"locality\":\"Chennai\"}},\"name\":{\"first\":\"abc\",\"last\":\"abc\"},\"mail\":[\"[email protected]\",\"[email protected]\"]}}]}";
        System.out.println(jsonstring);
        JSONObject jsonObject = new JSONObject(jsonstring);
        JSONArray profiles = jsonObject.getJSONArray("profiles");
        for (int i = 0; i < profiles.length(); i++) {
            JSONObject curProfile= (JSONObject) profiles.get(i);
            JSONArray mails= (JSONArray)((JSONObject)curProfile.get("content")).get("mail");
            System.out.println(mails.get(0));
        }
    }
}

as they have already said json standard doesn't impose ordering, so be careful

score 0 · Answer 2 · answered Jul 29 '22 at 09:43

I can able to get mail by using below code

//root = my json
JsonObject rootobj = root.getAsJsonObject();
JsonArray profilesItems = rootobj.getAsJsonArray("profiles");
JsonObject firstValue = profilesItems.get(0).getAsJsonObject().getAsJsonObject("content");
JsonElement emails = firstValue.get("mail");
String mail = emails.getAsJsonArray().get(0).getAsString();

How do I extract exact value from Json

2 Answers2