how to parse json in java
import org.json.*;
String jsonString = ... ; //assign your JSON String here
JSONObject obj = new JSONObject(jsonString);
String pageName = obj.getJSONObject("pageInfo").getString("pageName");
JSONArray arr = obj.getJSONArray("posts");
for (int i = 0; i < arr.length(); i++)
{
String post_id = arr.getJSONObject(i).getString("post_id");
......
}JSONObject java
import org.json.simple.JSONObject;
class JsonEncodeDemo {
public static void main(String[] args) {
JSONObject obj = new JSONObject();
inputJSON.put("subscriberName", "subscriber");
inputJSON.put("msisdn","7055389495");
System.out.print(obj);
}
}java parse json
//from object to JSON
Gson gson = new Gson();
gson.toJson(yourObject);
// from JSON to object
yourObject o = gson.fromJson(JSONString,yourObject.class);json parse java
public static void main(String[] args) throws Exception {
JSONObject jsonObject = (JSONObject) readJsonSimpleDemo("example.json");
System.out.println(jsonObject);
System.out.println(jsonObject.get("age"));
}
public static Object readJsonSimpleDemo(String filename) throws Exception {
FileReader reader = new FileReader(filename);
JSONParser jsonParser = new JSONParser();
return jsonParser.parse(reader);
}Parsing JSON Object in Java
JSONObject obj = new JSONObject("{interests : [{interestKey:Dogs}, {interestKey:Cats}]}");
List<String> list = new ArrayList<String>();
JSONArray array = obj.getJSONArray("interests");
for(int i = 0 ; i < array.length() ; i++){
list.add(array.getJSONObject(i).getString("interestKey"));
}Copyright © 2021 Codeinu
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