package com.cv.servlet.urlrewrite;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.log4j.Logger;
/**
* Servlet implementation class LoginServlet
*/
public class LoginServlet extends HttpServlet {
private static final Logger LOGGER = Logger.getLogger(LoginServlet.class);
private final String userID = "chandra";
private final String password = "kodam";
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
LOGGER.info("Entered into doPost(--) of LoginServlet class... ");
// get request parameters for userID and password
String user = request.getParameter("user");
String pwd = request.getParameter("pwd");
if (userID.equals(user) && password.equals(pwd)) {
LOGGER.info("Entered username : " + user + " AND password : " + pwd + " are correct..." );
HttpSession session = request.getSession();
session.setAttribute("user", "cv");
// setting session to expiry in 30 mins
session.setMaxInactiveInterval(30 * 60);
Cookie userName = new Cookie("user", user);
response.addCookie(userName);
// Get the encoded URL string
String encodedURL = response.encodeURL("success.jsp");
LOGGER.info("Control Redirecting to success.jsp...");
response.sendRedirect(encodedURL);
} else {
LOGGER.info("Entered username : " + user + " AND password : " + pwd + " are INVALID..." );
RequestDispatcher rd = getServletContext().getRequestDispatcher("/login.html");
PrintWriter out = response.getWriter();
out.println(
"<center><font color=red>Either user name or password is wrong. Please look at logs...</font></center>");
LOGGER.info("Please enter username : chandra & password: kodam");
rd.include(request, response);
}
}
} | 
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