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- package com.acebook;
- import java.io.IOException;
- import java.io.PrintWriter;
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.ResultSet;
- import java.sql.SQLException;
- import java.sql.Statement;
- import java.util.logging.Level;
- import java.util.logging.Logger;
- import javax.servlet.ServletConfig;
- import javax.servlet.ServletException;
- import javax.servlet.UnavailableException;
- import javax.servlet.http.HttpServlet;
- import javax.servlet.http.HttpServletRequest;
- import javax.servlet.http.HttpServletResponse;
- import javax.servlet.http.HttpSession;
- public class LoginServlet extends HttpServlet {
- public void init(ServletConfig config) throws ServletException {
- super.init(config);
- }
- public void doGet(HttpServletRequest request, HttpServletResponse response)
- throws IOException, ServletException {
- response.setContentType("text/html");
- PrintWriter out = response.getWriter();
- out.println("<html>");
- out.println("<head>");
- out.println("<title>Login</title>");
- out.println("</head>");
- out.println("<body>");
- HttpSession session = request.getSession();
- // Connection connection = (Connection) session.getAttribute("connection");
- Connection connection;
- try {
- connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/Acebook", "root", "90187666");
- } catch (SQLException ex) {
- connection = null;
- Logger.getLogger(LoginServlet.class.getName()).log(Level.SEVERE, null, ex);
- out.println("OMGOMGOMGOMGOMGOMGOMGOMGOMGOMG");
- }
- if (connection == null) {
- String userName = request.getParameter("username");
- String password = request.getParameter("password");
- // create the connection
- if (connection == null) {
- // create the connection
- response.sendRedirect("index");
- return;
- }
- } else { session.setAttribute("connection", connection);
- String logout = request.getParameter("logout");
- if (logout == null) {
- // test the connection
- Statement statement = null;
- ResultSet resultSet = null;
- String userName = request.getParameter("username");
- String password = request.getParameter("password");
- try {
- statement = connection.createStatement();
- resultSet = statement.executeQuery("select * FROM acebookmembers Where Email ='" + userName + "'");
- if (resultSet.next()) {
- userName = resultSet.toString();
- }
- } catch (SQLException e) {
- out.println("Login doGet() SQLException: " + e.getMessage()
- + "<p>");
- } finally {
- if (resultSet != null) {
- try {
- resultSet.close();
- } catch (SQLException ignore) {
- }
- }
- if (statement != null) {
- try {
- statement.close();
- } catch (SQLException ignore) {
- }
- }
- }
- out.println("Hello " + userName + "!<p>");
- out.println("Your session ID is " + session.getId() + "<p>");
- out.println("It was created on "
- + new java.util.Date(session.getCreationTime())
- + "<p>");
- out.println("It was last accessed on "
- + new java.util.Date(session.getLastAccessedTime())
- + "<p>");
- out.println("<form method=\"get\" action=\"Login\">");
- out.println("<input type=\"submit\" name=\"logout\" "
- + "value=\"Logout\">");
- out.println("</form>");
- } else {
- // close the connection and remove it from the session
- try {
- connection.close();
- } catch (SQLException ignore) {
- }
- session.removeAttribute("connection");
- out.println("You have been logged out.");
- }
- }
- out.println("</body>");
- out.println("</html>");
- }
- public void doPost(HttpServletRequest request, HttpServletResponse response)
- throws IOException, ServletException {
- doGet(request, response);
- }
- }
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