CT390 Lab3 Submission #3

ct390-lab3-sub3.java

package ct390;

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;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class HelloName
 */
@WebServlet("/HelloName")
public class HelloName extends HttpServlet {
        private static final long serialVersionUID = 1L;


    /**
     * @see HttpServlet#HttpServlet()
     */
    public HelloName() {
        super();
        // TODO Auto-generated constructor stub
    }

        /**
         * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
         */
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                if (request.getParameter("name") == null)
                        response.getWriter().println("Hello World");
                else
                        greet(request, response);
                // TODO Auto-generated method stub 
                String username = request.getParameter("username");
                HttpSession session = request.getSession();
                session.setAttribute("name", username);
        }

        private void greet(HttpServletRequest request, HttpServletResponse response)
                        throws IOException {
                response.getWriter().println("Hello " + request.getParameter("name"));
        }

        /**
         * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
         */
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
                greet(request, response);

        }

}

Overall a nice code, the author used generic variables that are easily understood and doPost and doGet are both well written out.

Two things that I noticed that would be a good addition are requests for the session and cookies. To improve your code you can make these additions for the session and cookies:

• HttpSession session = request.getSession();
• Cookie[] NumberCookies = request.getCookies();