URL类 读取一个网页到本地

 

 1 URL 访问网络资源

		URL url = new URL("http://www.infoq.com");
		InputStream is = url.openStream();  
		OutputStream os = new FileOutputStream("c:/text.txt");
		byte[]  buffer = new byte[2048];
		int leng=0;
		while((leng=is.read(buffer,0,buffer.length) )!=-1){
			os.write(buffer, 0	, leng);
		}
		is.close();
		os.close(); 
		System.out.println( "结束。。。。");

 

 

 2 InetAddress 使用

	public static void main(String[] args) throws UnknownHostException {
		
		InetAddress address = InetAddress.getByName("自己机器名称");
		String str = new String(address.getAddress( ));
		System.out.println(address );
		
		 address = InetAddress.getByName("http://www.baidu.com");
		 System.out.println( address );
	}