How to read reference $ref of JSON file?

Question

{
  "description": "Something",
  "id": "abc.def.xyzjson#",
  "type": "object",
  "properties": {
    "triggerTime": {
      "description": "Something",
      "$ref": "abc.def.xyz.1.json#"
      "required": true
    },
    "customerId": {
      "type": "string",
      "description": "Something",
      "$ref": "abc.def.xyz.1.json#"
    },

..... many more keys........ I need to go into the $ref file location and lode that json into a map Please help me out how to read. Already I am able to read the main file like

File jsonInputFile = new File("location");
System.out.println("Keys : " + entry2.getKey());

you can use gson, check the following link https://github.com/google/gson — Basil Battikhi, Oct 12 '17 at 12:12
All json parsing is the same. Start from the top. Know what's an object and an array. You can have no arrays here, so should be easy to get the customerId, and it's inner ref — OneCricketeer, Oct 12 '17 at 12:43

Vishnu T S · Answer 1 · 2017-10-12T12:27:22.243

You can try below code for getting the $ref value

import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
public class Test{

    public static void main(String[] args) {
        JSONParser parser = new JSONParser();

        try {

            Object obj = parser.parse(new FileReader(
                    "File location"));
            JSONObject jsonObject = (JSONObject) obj;
            JSONObject properties = (JSONObject) jsonObject.get("properties");
            JSONObject triggerTime = (JSONObject) properties.get("triggerTime");
            String ref = (String) triggerTime.get("$ref");//You can load this file to a map if required.
            System.out.println(ref);

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

output is

abc.def.xyz.1.json#

How to read reference $ref of JSON file?

1 Answers1