Use of Android JSON and HttpGet

public class Jsonactivity extends activity {/** Called when the activity is first created. */Private TextView TV     Json;     Private Button Btnjson;     Private Button Btnjsonmulti;         @Override public void OnCreate (Bundle savedinstancestate) {super.oncreate (savedinstancestate);         Setcontentview (R.layout.main);         Tvjson = (TextView) This.findviewbyid (R.id.tvjson);         Btnjson = (Button) This.findviewbyid (R.id.btnjson);         Btnjsonmulti = (Button) This.findviewbyid (R.id.btnjsonmulti);                 Btnjson.setonclicklistener (New View.onclicklistener () {@Override public void OnClick (View v) {                 URL//String strURL = "Http://10.158.166.110:8080/AndroidServer/JsonServlet";                 String strURL = Serverpageutil.getstrurl (Urlsofserver.json_singer);                 Gets the JSON string returned by string strresult = Connserverforresult (strURL); Parse JSON string parseJson (strresult);         }         });  Btnjsonmulti.setonclicklistener (New View.onclicklistener () {@Override public void OnClick (View v)                 {String strURL = Serverpageutil.getstrurl (urlsofserver.json_singers);                 String strresult = Connserverforresult (strURL);             Obtain multiple singer Parsejsonmulti (strresult);     }         }); } private String Connserverforresult (string strurl) {//HttpGet object HttpGet HttpRequest = new HttpGet (s         Trurl);         String strresult = "";             try {//HttpClient object HttpClient HttpClient = new Defaulthttpclient ();             Get HttpResponse object HttpResponse HttpResponse = Httpclient.execute (HttpRequest); if (Httpresponse.getstatusline (). Getstatuscode () = = HTTPSTATUS.SC_OK) {//Gets the returned data strresu             lt = entityutils.tostring (httpresponse.getentity ());    }     } catch (Clientprotocolexception e) {tvjson.settext ("protocol error");         E.printstacktrace ();             } catch (IOException e) {tvjson.settext ("IO error");         E.printstacktrace ();     } return strresult; }//Normal JSON data parsing private void Parsejson (String strresult) {try {jsonobject jsonobj = new JSON             Object (strresult). Getjsonobject ("singer");             int id = jsonobj.getint ("id");             String name = jsonobj.getstring ("name");             String gender = jsonobj.getstring ("gender");         Tvjson.settext ("ID number" +id + ", Name:" + name + ", Gender:" + gender);             } catch (Jsonexception e) {System.out.println ("Json parse Error");         E.printstacktrace (); }}//Parse multiple data json private void Parsejsonmulti (String strresult) {try {Jsonarray Jsonobjs             = new Jsonobject (strresult). Getjsonarray ("singers");          String s = "";   for (int i = 0; i < jsonobjs.length (); i++) {Jsonobject jsonobj = ((jsonobject) jsonobjs.opt (i))                 . Getjsonobject ("singer");                 int id = jsonobj.getint ("id");                 String name = jsonobj.getstring ("name");                 String gender = jsonobj.getstring ("gender");             s + = "ID number" +id + ", Name:" + name + ", Gender:" + gender+ "\ n";         } tvjson.settext (s);             } catch (Jsonexception e) {System.out.println ("Jsons parse Error!");         E.printstacktrace ();  }     } }

　　

Use of Android JSON and HttpGet