HttpURLConnection GET Request

1  Packagecom.example.administrator.myapplication.activity;2 3 ImportAndroid.os.Bundle;4 ImportAndroid.os.Handler;5 ImportAndroid.os.Message;6 Importandroid.support.v7.app.AppCompatActivity;7 ImportAndroid.view.View;8 ImportAndroid.webkit.WebView;9 ImportAndroid.widget.Button;Ten  One ImportCOM.EXAMPLE.ADMINISTRATOR.MYAPPLICATION.R; A  - Importjava.io.IOException; - ImportJava.io.InputStream; the Importjava.net.HttpURLConnection; - Importjava.net.MalformedURLException; - ImportJava.net.URL; -  +  Public classHttpurlconnectiongetactivityextendsappcompatactivity { - WebView WebView; + Button httpurlbtn; A @Override at     protected voidonCreate (Bundle savedinstancestate) { -         Super. OnCreate (savedinstancestate); - Setcontentview (r.layout.activity_get); -WebView =(WebView) Findviewbyid (R.id.baidu); -HTTPURLBTN =(Button) Findviewbyid (r.id.httpurl); -Httpurlbtn.setonclicklistener (NewView.onclicklistener () { in @Override -              Public voidOnClick (View v) { to                 /*thread thread = new Thread (new Runnable () { + @Override - Public void Run () { the httpurlconnectionget (); *                     } $                 });Panax Notoginseng Thread.Start ();*/ -                 //!! Network request Httpurlconnectionget () to be placed in a child thread the                 NewThread (NewRunnable () { + @Override A                      Public voidrun () { the httpurlconnectionget (); +                     } - }). Start (); $             } $         }); -     } -     //GET Request the     Private voidHttpurlconnectionget () { -HttpURLConnection httpurlconnection =NULL;WuyiInputStream is =NULL; the         //StringBuilder: Thread is not secure, can have multi-threading, faster than Stingbuffer, usage with StringBuffer -         //stringbuffer: Thread safe, only single threaded WuStringBuilder SB =NewStringBuilder (); -         Try { About             //Prepare the requested network address $URL url =NewURL ("Http://apis.baidu.com/txapi/weixin/wxhot?num=10&page=1&word=%E7%9B%97%E5%A2%93%E7%AC%94%E8%AE%B0"); -             //call OpenConnection to get a network connection and the network connection is in a ready state -HttpURLConnection =(HttpURLConnection) url.openconnection (); -             //Set network connection timeout time 5S AHttpurlconnection.setconnecttimeout (5*1000); +             //set the Read timeout time theHttpurlconnection.setreadtimeout (5*1000); -Httpurlconnection.setrequestproperty ("Apikey", "58218dcc8845195b277082c3a357f481"); $ Httpurlconnection.connect (); the             //If connection request code succeeded the             if(Httpurlconnection.getresponsecode () = =HTTPURLCONNECTION.HTTP_OK) { theis =Httpurlconnection.getinputstream (); the                 byte[] bytes =New byte[1024]; -                 inti = 0; in                  while((i = Is.read (bytes))! =-1){ theSb.append (NewString (Bytes,0,i, "Utf-8")); the                 } About is.close (); the             } the}Catch(malformedurlexception e) { the e.printstacktrace (); +}Catch(IOException e) { - e.printstacktrace (); the}finally {Bayi             if(HttpURLConnection! =NULL){ the Httpurlconnection.disconnect (); the             } -         } -         //Send message: What message type, obj message content theMessage message = Handler.obtainmessage (1, sb.tostring ()); the handler.sendmessage (message); the     } the  -     //Handler: Message processing mechanism (sending messages, processing messages), can only be placed in the main thread theHandler Handler =NewHandler () { the @Override the          Public voidhandlemessage (Message msg) {94             Super. Handlemessage (msg); the             if(msg! =NULL&& Msg.what ==1){ theString s =(String) msg.obj; theWebview.getsettings (). Setdefaulttextencodingname ("Utf-8");98Webview.getsettings (). setjavascriptenabled (true); AboutWebview.loaddatawithbaseurl (NULL, S, "text/html", "Utf-8",NULL); -             }101         }102     };103}

1<?xml version= "1.0" encoding= "Utf-8"?>2<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"3Xmlns:tools= "Http://schemas.android.com/tools"4Android:layout_width= "Match_parent"5android:layout_height= "Match_parent"6android:orientation= "Vertical"7Tools:context= ". Activity. Httpurlconnectiongetactivity ">8 9<WebViewTenAndroid:id= "@+id/baidu" OneAndroid:layout_width= "Match_parent" Aandroid:layout_height= "400DP"/> -  -<Button theAndroid:id= "@+id/httpurl" -Android:layout_width= "Match_parent" -android:layout_height= "Wrap_content" -android:text= "HttpURLConnection GET Request" +Android:textallcaps= "false"/> -  +</LinearLayout>

HttpURLConnection GET Request