Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package game.com.entity; import com.google.gson.Gson; import com.google.gson.GsonBuilder; import game.com.AppConfig; /** * * @author chieuvh */ public class BaseEntity { public String toJsonString() { GsonBuilder gsonBuilder = new GsonBuilder(); gsonBuilder.setDateFormat(AppConfig.dateFormat); Gson gson = gsonBuilder.create(); return gson.toJson(this); } }