Java HttpServletResponse send redirect

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;


@WebServlet(name = "Main", urlPatterns = { "/redirect" })
public class Main extends HttpServlet {

   @Override/*  www.ja  v a 2s.  c  o m*/
   public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
      String site = "https://www.demo2s.com";

      res.sendRedirect(site);
   }
}