java页面抓取代码

package com.csdn.test;
import java.net.*;

import java.io.*;

public class test{
public static void main(String[] args)
{
StringBuffer document = new StringBuffer();

try
{
URL url = new URL("http://www.google.cn/");//抓取google网页信息

URLConnection conn = url.openConnection();

BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));

String line = null;

while ((line = reader.readLine()) != null)

document.append(line + " ");

reader.close();

}

catch (MalformedURLException e)

{
e.printStackTrace();
}

catch (IOException e)
{
e.printStackTrace();
}
System.out.println(document.toString()); ///输出网页代码信息
}
}