Sixth chapter, get network Request demo (Android)

Add Network permissions in Androidmanifest.xml

<uses-permission android:name= "Android.permission.INTERNET"/>

Mainactivity

Package Com.example.demo10;import Org.apache.http.httpentity;import Org.apache.http.httpresponse;import Org.apache.http.client.httpclient;import Org.apache.http.client.methods.httpget;import Org.apache.http.impl.client.defaulthttpclient;import Org.apache.http.util.entityutils;import Android.app.activity;import Android.os.bundle;import Android.os.handler;import Android.os.Message;import Android.view.view;import Android.view.view.onclicklistener;import Android.widget.button;import Android.widget.linearlayout;import Android.widget.textview;public class Mainactivity extends Activity implements Onclicklistener {private TextView tv;private String str; @Overrideprotected void OnCreate (Bundle savedinstancestate) { Super.oncreate (savedinstancestate);//Comment out the layout of itself//Setcontentview (R.layout.activity_main);//Instantiate a layout linearlayout Llayout = new LinearLayout (this);//Set Layout direction llayout.setorientation (linearlayout.vertical);// Add the layout to the window This.setcontentview (llayout);//Generate button Button button = New button (this); button. SetText ("Send Get"); Button.setonclicklistener (this); Llayout.addview (button);//Generate TEXTVIEWTV = new TextView (this); Llayout.addview (TV);} @Overridepublic void OnClick (View arg0) {//TODO auto-generated method stub//open Child thread New thread () {public void run () {//Build G ET request HttpGet HG = new HttpGet ("http://www.sina.com"); HttpClient HC = new defaulthttpclient (); try {HttpResponse hr = Hc.execute (Hg); Httpentity he = hr.getentity ();//Convert to String//entityutils.tostring (He, "Utf-8"), after which a parameter can be filled with "utf-8", "gb2312", etc.,//can also not fill str = Entityutils.tostring (He);//Send Empty message handler.sendemptymessage (0);} catch (Exception e) {e.printstacktrace ();}};}. Start ();} Instantiate Handlerhandler handler = new Handler () {public void Handlemessage (Message msg) {tv.settext (str);};}

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Sixth chapter, get network Request demo (Android)