GSON – How to parse input JSON with dynamic keys

json 파일에서 key 값이 동적인 경우 파싱하는 방법이다.

# 구글 검색

GSON – How to parse input JSON with dynamic keys

JSON - deserialization of dynamic object using Gson

Parse Json Object with dynamic keys using Gson

gson dynamic key name

# 테스트

public class DynamicJsonApp { public static void main(String[] args) throws IOException { // TODO Auto-generated method stub Gson gson = new GsonBuilder().setPrettyPrinting().create(); String strData = new String(Files.readAllBytes(Paths.get("test.json"))); DemoJson myObj  = gson.fromJson(strData, new TypeToken<DemoJson>(){}.getType()); System.out.println("###########################################"); System.out.println(myObj); System.out.println("###########################################"); System.out.println(myObj.getData().getFeeds().get("39").getAddress()); System.out.println(myObj.getData().getFeeds().get("39").getName()); Map<String, Feeds> feeds = myObj.getData().getFeeds(); Set<String> keySet = feeds.keySet(); Iterator<String> it = keySet.iterator(); while (it.hasNext()) {              String key = it.next();              Feeds value = feeds.get(key);              System.out.println("\t" + key + " : " + value);        } System.out.println("###########################################"); } }

# 참고 사이트

http://findnerd.com/list/view/Parse-Json-Object-with-dynamic-keys-using-Gson-/24094/

https://stackoverflow.com/questions/8829475/json-deserialization-of-dynamic-object-using-gson

https://futurestud.io/tutorials/gson-mapping-of-maps

https://www.codesd.com/item/creating-pojo-outside-the-json-string-with-dynamic-fields-using-gson.html

https://www.e-learn.cn/content/wangluowenzhang/34690

http://javausecase.com/2018/02/23/gson-how-to-parse-input-json-with-dynamic-keys/