java与web服务器链接的实例

import java.net.InetAddress;
import java.net.Socket;

public class WebPing {
  public static void main(String[] args) {
   try {
     InetAddress addr;
     Socket sock = new Socket("www.yiibai.com", 80);
     addr = sock.getInetAddress();
     System.out.println("Connected to " + addr);
     sock.close();
   } catch (java.io.IOException e) {
     System.out.println("Can't connect to " + args[0]);
     System.out.println(e);
   }
  }
}

Connected to http://www.yiibai.com/112.124.103.85