Use of Gson Jsonparser

 Packageiotest;ImportCom.google.gson.Gson;ImportCom.google.gson.JsonArray;Importcom.google.gson.JsonElement;ImportCom.google.gson.JsonObject;ImportCom.google.gson.JsonParser;Importjava.util.ArrayList;ImportJava.util.Iterator;Importjava.util.List;/** * @authorYan *@versionV1.0 * @desc*/ Public classIotest { Public Static voidMain (string[] args) {result result=NewResult (); Result.setno (1); Result.setmsg ("OK"); List<String> list =NewArraylist<string>(); List.add ("123"); List.add ("234"); List.add ("345");                Result.setobj (list); Gson Gson=NewGson (); String JSON=Gson.tojson (Result);                SYSTEM.OUT.PRINTLN (JSON); /*** {"No": 1, "MSG": "OK", "obj": ["123", "234", "345"]}*/Jsonparser JP=NewJsonparser (); Jsonobject Jsonobj=Jp.parse (JSON). Getasjsonobject (); intNo = Jsonobj.get ("No"). Getasint (); System.out.println ("No:" +no); String msg= Jsonobj.get ("msg")). getasstring (); System.out.println ("Msg:" +msg); Jsonarray Jsonarray= Jsonobj.get ("obj"). Getasjsonarray (); Iterator<JsonElement> iter =Jsonarray.iterator (); List<String> OBJS =NewArraylist<string>();  while(Iter.hasnext ()) {Objs.add (Iter.next (). getasstring ()); }                 for(String s:objs) {System.out.println ("==s:" +s); }            }            Static classresult{PrivateInteger No; PrivateString msg; PrivateObject obj;  PublicInteger Getno () {returnNo; }         Public voidSetno (Integer no) { This. No =No; }         PublicString getmsg () {returnmsg; }         Public voidsetmsg (String msg) { This. msg =msg; }         PublicObject getobj () {returnobj; }         Public voidsetobj (Object obj) { This. obj =obj; }                    }}

Use of Gson Jsonparser