第六章，GET網路請求demo（Android）

標籤：android   get   httpclient   

在 AndroidManifest.xml中添加網路許可權

<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);// 注釋掉本身的布局// setContentView(R.layout.activity_main);// 執行個體化一個布局LinearLayout llayout = new LinearLayout(this);// 設定布局方向llayout.setOrientation(LinearLayout.VERTICAL);// 把布局添加到視窗中this.setContentView(llayout);// 產生按鈕Button button = new Button(this);button.setText("發送get");button.setOnClickListener(this);llayout.addView(button);// 產生textviewtv = new TextView(this);llayout.addView(tv);}@Overridepublic void onClick(View arg0) {// TODO Auto-generated method stub// 開啟子線程new Thread() {public void run() {// 建立get請求HttpGet hg = new HttpGet("http://www.sina.com");HttpClient hc = new DefaultHttpClient();try {HttpResponse hr = hc.execute(hg);HttpEntity he = hr.getEntity();// 轉成字串// EntityUtils.toString(he,"utf-8");後一個參數可填"utf-8","gb2312"等，// 也可不填str = EntityUtils.toString(he);// 發送空訊息handler.sendEmptyMessage(0);} catch (Exception e) {e.printStackTrace();}};}.start();}// 執行個體化handlerHandler handler = new Handler() {public void handleMessage(Message msg) {tv.setText(str);};};}

運行：

第六章，GET網路請求demo（Android）