البحث عن ال Meta Tag في صفحة الويب باستخدام الجافا

import java.io.*;
import java.util.regex.*;

public class GetKeyWordsMeta
{
public static void main(String[] args)
{
Pattern pattern = Pattern.compile(".*<meta\\s+name=[\"']?keywords[\"']?.*?>.*");
Matcher matcher;
try{
URL url = new URL("http://java.sun.com/index.jsp");
BufferedReader reader = new BufferedReader(new InputStreamReader(url.openStream()));
String line;
while((line = reader.readLine()) != null)
{
matcher = pattern.matcher(line);
if (matcher.matches())
System.out.println(matcher.group());
}
} catch (Exception e) {
e.printStackTrace();
}
}
}

 import java.net.*;