Login

src/main/java/de/hsel/spm/baudas/web/LoginServlet.java

@@ -0,0 +1,51 @@
+package de.hsel.spm.baudas.web;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+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;
+
+@WebServlet("/LoginServlet")
+
+public class LoginServlet extends HttpServlet {
+
+    //private final String username = "admin";
+    private final String password = "password";
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        // get request parameters for username and password
+        //String username = request.getParameter("username");
+        String password = request.getParameter("pwd");
+
+        //if (this.username.equals(username) && this.password.equals(password)) {
+        if (this.password.equals(password)) {
+            //get the old session and invalidate
+            HttpSession oldSession = request.getSession(false);
+            if (oldSession != null) {
+                oldSession.invalidate();
+            }
+            //generate a new session
+            HttpSession newSession = request.getSession(true);
+
+            //setting session to expiry in 5 mins
+            newSession.setMaxInactiveInterval(5*60);
+
+            Cookie message = new Cookie("message", "Welcome");
+            response.addCookie(message);
+            response.sendRedirect("/index.jsp");
+        } else {
+            RequestDispatcher rd = getServletContext().getRequestDispatcher("/login.html");
+            PrintWriter out = response.getWriter();
+            out.println("<font color=red>Das eingegebene Passwort ist falsch.</font>");
+            rd.include(request, response);
+        }
+    }
+}

src/main/java/de/hsel/spm/baudas/web/LogoutServlet.java

@@ -0,0 +1,27 @@
+package de.hsel.spm.baudas.web;
+
+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 LogoutServlet
+ */
+@WebServlet("/web/LogoutServlet")
+public class LogoutServlet extends HttpServlet {
+
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+
+        //invalidate the session if exists
+        HttpSession session = request.getSession(false);
+        if(session != null){
+            session.invalidate();
+        }
+        response.sendRedirect(request.getContextPath() + "/loginPage.html");
+    }
+}

src/main/webapp/preview/login.html

@@ -23,15 +23,18 @@
                         <div class="divider"></div>
                         <div class="row">
                             <div class="col s8 push-s2">
-                                <input id="password" type="password" class="validate" placeholder="Passwort">
-                                <a class="waves-effect waves-light btn blue-grey lighten-2"><i class="material-icons left">lock_open</i>Login</a>
-                            </div>
-                        </div>
-                    </div>
-                </div>
-            </div>
-        </div>
 
+                                <form action="LoginServlet" method="post">
+                                    <input id="password" type="password" class="validate" placeholder="Passwort">
+                                    <input class="white-text btn blue-grey lighten-2" type="submit" value="Login">
+                                </form>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </div>
+        <!--<a class="waves-effect waves-light btn blue-grey lighten-2"><i class="material-icons left">lock_open</i>Login</a>-->
         <!--Anfang Skriptbereich-->
 
         <!--Script für Materlialize-->