java - how to get the result of restful web service with httpClient in json format -

i'm developing httpclient application use list<object> restful web service in json format.

i want use result in json format.

this httpclient application class :

public class clientabortmethod {      public final static void main(string[] args) throws exception {         closeablehttpclient httpclient = httpclients.createdefault();         try {             httpget httpget = new httpget("http://localhost:8080/structure/alldto");              system.out.println("executing request " + httpget.geturi());             closeablehttpresponse response = httpclient.execute(httpget);             try {                string data= entityutils.tostring(response.getentity());                   system.out.println(data);                 // not feel reading response body                 // call abort on request object                 httpget.abort();             } {                 response.close();             }         } {             httpclient.close();         }     }  } 

this result of executing code

[{"ids":"#ab","champs":[ {"idchamp":1,"order":1,"type":"from"},{"idchamp":2,"order":2,"type":"to"},{"idchamp":3,"order":3,"type":"text"}]},{"ids":"#ac","champs":[{"idchamp":4,"order":1,"type":"from"},{"idchamp":5,"order":2,"type":"to_mail"},{"idchamp":6,"order":3,"type":"text"}]},{"ids":"tt","champs":[]}] 

this restful web service

@requestmapping("/alldto") public list<structurenotificationdto> getallstructurenotification() {      return structurenotif.structuredtos(); } 

how can result of web service in json format or other easy-to-manipulate format?

you can use jackson library. add libraries, suggest dependency management system, maven. after that, use following code:

   objectmapper mapper = new objectmapper();    list<structurenotificationdto> list = mapper.readvalue(data, new typereference<list<structurenotificationdto>>() {}); 

then can manipulate data.