1：StreamTool

package cn.itcast.utils;

import java.io.ByteArrayOutputStream;
import java.io.InputStream;

public class StreamTool {

 /**
  * 从输入流中获取数据
  * @param inStream 输入流
  * @return
  * @throws Exception
  */
 public static byte[] readInputStream(InputStream inStream) throws Exception{
  ByteArrayOutputStream outStream = new ByteArrayOutputStream();
  byte[] buffer = new byte[1024];
  int len = 0;
  while( (len=inStream.read(buffer)) != -1 ){
   outStream.write(buffer, 0, len);
  }
  inStream.close();
  return outStream.toByteArray();
 }
}

?

2：HtmlService

package cn.itcast.service;

import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import cn.itcast.utils.StreamTool;

public class HtmlService {

	public static String getHtml(String path) throws Exception {
		URL url = new URL(path);
		HttpURLConnection conn = (HttpURLConnection)url.openConnection();
		conn.setRequestMethod("GET");
		conn.setConnectTimeout(5 * 1000);
		InputStream inStream = conn.getInputStream();//通过输入流获取html数据
		byte[] data = StreamTool.readInputStream(inStream);//得到html的二进制数据
		String html = new String(data, "gb2312");
		return html;
	}

}

?3：MainActivity

package cn.itcast.html;

import cn.itcast.service.HtmlService;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        
        TextView textView = (TextView)this.findViewById(R.id.textView);
        try {
        	textView.setText(HtmlService.getHtml("http://www.sohu.com"));
		} catch (Exception e) {
			Log.e("MainActivity", e.toString());
			Toast.makeText(MainActivity.this, "网络连接失败", 1).show();
		}
        
    }
}

?4：

  <?xml version="1.0" encoding="utf-8" ?> 
- <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="cn.itcast.html" android:versionCode="1" android:versionName="1.0">
- <application android:icon="@drawable/icon" android:label="@string/app_name">
- <activity android:name=".MainActivity" android:label="@string/app_name">
- <intent-filter>
  <action android:name="android.intent.action.MAIN" /> 
  <category android:name="android.intent.category.LAUNCHER" /> 
  </intent-filter>
  </activity>
  </application>
  <uses-sdk android:minSdkVersion="8" /> 
- <!--  访问网络的权限 
  --> 
  <uses-permission android:name="android.permission.INTERNET" /> 
  </manifest>

?