import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.net.URL; 
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 
public class URLReader1 { 
 public static void main(String args[])throws IOException{ 
 URL name = new URL("http://www.baidu.com"); 
 InputStream input = name.openStream(); 
 InputStreamReader isr = new InputStreamReader(input); 
 BufferedReader buffer = new BufferedReader(isr); 
 String inputLine; 
 //doSomeTest(); 
 while((inputLine = buffer.readLine()) != null){ 
 doCheckUrl(inputLine); 
 //break; 
 } 
 buffer.close(); 
 } 
 static void doCheckUrl(String str){ 
 Pattern pattern=Pattern.compile("<a\\s+href[^>]*>"); 
 Matcher matcher=pattern.matcher(str); 
 while (matcher.find()) { 
 System.out.println("+"+str.substring(matcher.start(), matcher.end())); 
 } 
 } 
}