android - How can I get a JSONOBject of a Web Service? -

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i'm trying jsonobject of web service. i'm using httpclient httpresponse. when web service return json change return string , try create jsonobject still doesn´t work , return null.

how can ?

import java.io.ioexception; import java.io.serializable; import java.util.list;  import org.apache.http.httpentity; import org.apache.http.httpresponse; import org.apache.http.namevaluepair; import org.apache.http.client.clientprotocolexception; import org.apache.http.client.entity.urlencodedformentity; import org.apache.http.client.methods.httpget; import org.apache.http.client.methods.httppost; import org.apache.http.impl.client.defaulthttpclient; import org.apache.http.util.entityutils; import org.json.jsonexception; import org.json.jsonobject;   public static jsonobject get(string url){                jsonobject jsonobj = null;          try {             defaulthttpclient httpclient = new defaulthttpclient();             httpresponse httpresponse = httpclient.execute(new httpget(url));             httpentity entity = httpresponse.getentity();             if(entity != null){                 string s = entityutils.tostring(entity);                 jsonobj = new jsonobject(s);                             }                    } catch (clientprotocolexception e) {                        e.printstacktrace();         } catch (ioexception e) {                        e.printstacktrace();         } catch (jsonexception e) {             e.printstacktrace();         }          return jsonobj;      }


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