用户邮箱长度限制20

ruoyi-admin/src/main/resources/templates/system/user/add.html

@@ -43,7 +43,7 @@
                     <div class="form-group">
                         <label class="col-sm-4 control-label"><span style="color: red; ">*</span>邮箱：</label>
                         <div class="col-sm-8">
-                            <input id="email" name="email" class="form-control email" type="text" maxlength="50" placeholder="请输入邮箱" required>
+                            <input id="email" name="email" class="form-control email" type="text" maxlength="20" placeholder="请输入邮箱" required>
                         </div>
                     </div>
                 </div>

ruoyi-admin/src/main/resources/templates/system/user/edit.html

@@ -44,7 +44,7 @@
                     <div class="form-group">
                         <label class="col-sm-4 control-label"><span style="color: red; ">*</span>邮箱：</label>
                         <div class="col-sm-8">
-                            <input name="email" class="form-control email" type="text" maxlength="50" placeholder="请输入邮箱" th:field="*{email}" required>
+                            <input name="email" class="form-control email" type="text" maxlength="20" placeholder="请输入邮箱" th:field="*{email}" required>
                         </div>
                     </div>
                 </div>