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- try (PrintWriter out = response.getWriter()) {
- String action = request.getParameter("action");
- String username = request.getParameter("username");
- String password = request.getParameter("password");
- HttpSession s = request.getSession();
- List<Students> studentList = (List<Students>) s.getAttribute("studentList");
- if (studentList == null) {
- studentList = new ArrayList<>();
- s.setAttribute("studentList", studentList);
- }
- switch (action) {
- case "Login":
- boolean ok = false;
- for (Students student : studentList) {
- if (student.getName().equals(username)) {
- ok = true;
- break;
- }
- }
- if (ok) {
- response.sendRedirect("partims.html");
- } else {
- response.sendRedirect("index.html");
- }
- break;
- case "Register":
- boolean ok2 = true;
- for (Students student : studentList) {
- if (student.getName().equals(username)) {
- ok2 = false;
- break;
- }
- }
- if (ok2) {
- Students newstudent = new Students(username, password);
- studentList.add(newstudent);
- response.sendRedirect("partims.html");
- } else {
- response.sendRedirect("index.html");
- }
- break;
- default:
- response.sendRedirect("index.html");
- break;
- }
- }
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