Baidu Weather API Usage test

The request function is a template for Baidu, and the URL and key are correct, but the return value is nothing. It's been bothering me all day.

1  Public classMainactivityextendsActivity {2     3 Button GetWeather;4 TextView Showjson;5 6String Httpurl = "Http://apis.baidu.com/apistore/weatherservice/weather";7String Httparg = "Citypinyin=beijing";8String Jsonresult =request (Httpurl, httparg);9 Ten @Override One     protected voidonCreate (Bundle savedinstancestate) { A         Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.activity_main); -  theGetWeather =(Button) Findviewbyid (r.id.getweather); -Buttonlistener listener =NewButtonlistener (); - Getweather.setonclicklistener (listener); -Showjson =(TextView) Findviewbyid (R.id.showjson); +          -     } +  A     classButtonlistenerImplementsOnclicklistener { at  - @Override -          Public voidOnClick (View v) { -             //TODO auto-generated Method Stub -             Switch(V.getid ()) { -              CaseR.id.getweather: in //Toast.maketext (Mainactivity.this, jsonresult.tostring (), Toast.length_short). Show (); - //if (Request (Httpurl, httparg) = = "") to //log.d ("mainactivity", "Asdasdasdad"); + //Else LOG.D ("mainactivity", Request (Httpurl, Httparg)); - Showjson.settext (Request (Httpurl, httparg));  the                  Break; *             default: $                  Break;Panax Notoginseng         } -         } the          +     } A  the      Public Staticstring Request (String Httpurl, String httparg) { +BufferedReader reader =NULL; -String result =NULL; $StringBuffer SBF =NewStringBuffer (); $Httpurl = Httpurl + "?" +Httparg; -  -         Try { theURL url =NewURL (httpurl); -HttpURLConnection connection =(httpurlconnection) URLWuyi . OpenConnection (); theConnection.setrequestmethod ("GET"); -             //fill in Apikey to HTTP header WuConnection.setrequestproperty ("Apikey", "c71ca21053ffc590e06f324968896823"); - Connection.connect (); AboutInputStream is =Connection.getinputstream (); $Reader =NewBufferedReader (NewInputStreamReader (IS, "UTF-8")); -String Strread =NULL; -              while((Strread = Reader.readline ())! =NULL) { - sbf.append (strread); ASbf.append ("\ r \ n"); +             } the reader.close (); -result =sbf.tostring (); $}Catch(Exception e) { the e.printstacktrace (); the         } the         returnresult; the     } -  in  the}

Baidu Weather API Usage test