LoginServlet.java

/*
 * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
 * Click nbfs://nbhost/SystemFileSystem/Templates/JSP_Servlet/Servlet.java to edit this template
 */
package com.ecommerce.login;

import com.ecommerce.connection.DbConnection;
import com.ecommerce.dao.UserDao;
import com.ecommerce.loginpack.model.UserModelClass;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author oladimeji
 */
@WebServlet(name = "LoginServlet", urlPatterns = {"/user-login"})
public class LoginServlet extends HttpServlet {

    
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        
        response.sendRedirect("login.jsp");
        
    }
    
    
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try(PrintWriter out = response.getWriter()){
            String username = request.getParameter("lusername");
            String password = request.getParameter("lpassword");
            
            try {
                UserDao udao = new UserDao(DbConnection.getConnection());
                UserModelClass user = udao.userLogin(username, password);
                
                if(user !=null){
                   request.getSession().setAttribute("auth", user);
                   response.sendRedirect("index.jsp");
                }else{
                   out.print("user login failed");

                }
            } catch (ClassNotFoundException | SQLException ex) {
                Logger.getLogger(LoginServlet.class.getName()).log(Level.SEVERE, null, ex);
            }
            
            
            
        }
        
    }

}