register中移除多余的代码

添加模态框2以显示success的消息

Signed-off-by: Chenx221 <chenx221@yandex.com>

project2/src/main/java/cyou/chenx221/controller/UserController.java

@@ -70,18 +70,11 @@ public class UserController {
                 user = new User(username, password);
                 userMapper.insertUser(user);
                 model.addAttribute("message", "注册成功");
+                return "login";
             }
         } else {
             model.addAttribute("errorMessage", "用户已存在，请重新输入。");
             return "login";
         }
-
-        if (user != null && user.getPassword().equals(password)) {
-            model.addAttribute("message", "登陆成功");
-            return "redirect:/dashboard"; // 重定向到 dashboard 页面
-        } else {
-            model.addAttribute("errorMessage", "用户名或密码不正确，请重新输入。");
-            return "login";
-        }
     }
 }

project2/web/WEB-INF/views/login.jsp

@@ -182,7 +182,27 @@
             </div>
         </div>
     </div>
-<%--    todo: Modal2--%>
+    <!-- Modal -->
+    <div class="modal fade" id="exampleModal2" tabindex="-1" aria-labelledby="exampleModalLabel2" aria-hidden="true">
+        <div class="modal-dialog">
+            <div class="modal-content">
+                <div class="modal-header">
+                    <h5 class="modal-title" id="exampleModalLabel2">
+                        <i class="fas fa-circle-check me-2"></i>成功
+                    </h5>
+                    <button type="button" class="btn-close" data-mdb-dismiss="modal" aria-label="Close"></button>
+                </div>
+                <div class="modal-body">
+                    <c:if test="${not empty successMessage}">
+                        ${successMessage}
+                    </c:if>
+                </div>
+                <div class="modal-footer">
+                    <button type="button" class="btn btn-primary" data-mdb-dismiss="modal">OK</button>
+                </div>
+            </div>
+        </div>
+    </div>
 </main>
 
 <footer>
@@ -194,9 +214,12 @@
 <script>
     $(document).ready(function () {
         <%-- 判断模型中是否存在错误信息 --%>
-        <c:if test="${not empty errorMessage}">
+        <c:if test="${not empty errorMessage && errorMessage ne 'null'}">
         $('#exampleModal').modal('show');
         </c:if>
+        <c:if test="${not empty successMessage && successMessage ne 'null'}">
+        $('#exampleModal2').modal('show');
+        </c:if>
     });
 </script>
 </body>