android http请求(1)

package com.example.simpleclient;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import org.apache.http.HttpResponse;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.HttpClient;import org.apache.http.client.methods.HttpGet;import org.apache.http.impl.client.DefaultHttpClient;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.util.Log;import android.view.Menu;public class SimpleClient extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);test();}public void test(){final Handler myHandler = new Handler() {public void handleMessage(Message msg) {switch (msg.what) {case 1:Log.i("tag", "返回到主线程。");//System.out.println("返回到主线程了");break;}super.handleMessage(msg);}};new Thread(new Runnable() {public void run() {HttpClient client = new DefaultHttpClient(); StringBuilder builder = new StringBuilder();  HttpGet get = new HttpGet("http://www.baidu.com");  try {HttpResponse response = client.execute(get);BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));  for (String s = reader.readLine(); s != null; s = reader.readLine()) {                  builder.append(s);              }  Log.i("tag", "百度返回的数据:" + builder.toString());  } catch (ClientProtocolException e) {e.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} Message message = new Message();                   message.what = 1;                 myHandler.sendMessage(message);}}).start();}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}