diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/DeptServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/DeptServiceImpl.java
index 145ac97b..aef2d9b6 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/DeptServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/DeptServiceImpl.java
@@ -61,17 +61,13 @@ public class DeptServiceImpl extends BaseServiceImpl<DeptMapper, DeptDO, DeptRes
 
     @Override
     public void beforeCreate(DeptReq req) {
-        String name = req.getName();
-        boolean isExists = this.isNameExists(name, req.getParentId(), null);
-        CheckUtils.throwIf(isExists, "新增失败，[{}] 已存在", name);
+        this.checkNameRepeat(req.getName(), req.getParentId(), null);
         req.setAncestors(this.getAncestors(req.getParentId()));
     }
 
     @Override
     public void beforeUpdate(DeptReq req, Long id) {
-        String name = req.getName();
-        boolean isExists = this.isNameExists(name, req.getParentId(), id);
-        CheckUtils.throwIf(isExists, "修改失败，[{}] 已存在", name);
+        this.checkNameRepeat(req.getName(), req.getParentId(), id);
         DeptDO oldDept = super.getById(id);
         String oldName = oldDept.getName();
         DisEnableStatusEnum newStatus = req.getStatus();
@@ -140,19 +136,18 @@ public class DeptServiceImpl extends BaseServiceImpl<DeptMapper, DeptDO, DeptRes
     }
 
     /**
-     * 名称是否存在
+     * 检查名称是否重复
      *
      * @param name     名称
      * @param parentId 上级 ID
      * @param id       ID
-     * @return 是否存在
      */
-    private boolean isNameExists(String name, Long parentId, Long id) {
-        return baseMapper.lambdaQuery()
+    private void checkNameRepeat(String name, Long parentId, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
             .eq(DeptDO::getName, name)
             .eq(DeptDO::getParentId, parentId)
             .ne(id != null, DeptDO::getId, id)
-            .exists();
+            .exists(), "名称为 [{}] 的部门已存在", name);
     }
 
     /**
diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/DictItemServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/DictItemServiceImpl.java
index d725efb3..8c8683bd 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/DictItemServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/DictItemServiceImpl.java
@@ -58,15 +58,13 @@ public class DictItemServiceImpl extends BaseServiceImpl<DictItemMapper, DictIte
 
     @Override
     public void beforeCreate(DictItemReq req) {
-        String value = req.getValue();
-        CheckUtils.throwIf(this.isValueExists(value, null, req.getDictId()), "新增失败，字典值 [{}] 已存在", value);
+        this.checkValueRepeat(req.getValue(), null, req.getDictId());
         RedisUtils.deleteByPattern(CacheConstants.DICT_KEY_PREFIX + StringConstants.ASTERISK);
     }
 
     @Override
     public void beforeUpdate(DictItemReq req, Long id) {
-        String value = req.getValue();
-        CheckUtils.throwIf(this.isValueExists(value, id, req.getDictId()), "修改失败，字典值 [{}] 已存在", value);
+        this.checkValueRepeat(req.getValue(), id, req.getDictId());
         RedisUtils.deleteByPattern(CacheConstants.DICT_KEY_PREFIX + StringConstants.ASTERISK);
     }
 
@@ -91,19 +89,18 @@ public class DictItemServiceImpl extends BaseServiceImpl<DictItemMapper, DictIte
     }
 
     /**
-     * 字典值是否存在
+     * 检查字典值是否重复
      *
      * @param value  字典值
      * @param id     ID
      * @param dictId 字典 ID
-     * @return 是否存在
      */
-    private boolean isValueExists(String value, Long id, Long dictId) {
-        return baseMapper.lambdaQuery()
+    private void checkValueRepeat(String value, Long id, Long dictId) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
             .eq(DictItemDO::getValue, value)
             .eq(DictItemDO::getDictId, dictId)
             .ne(id != null, DictItemDO::getId, id)
-            .exists();
+            .exists(), "字典值为 [{}] 的字典项已存在", value);
     }
 
     /**
diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/DictServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/DictServiceImpl.java
index 0869b962..fd338e41 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/DictServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/DictServiceImpl.java
@@ -47,16 +47,13 @@ public class DictServiceImpl extends BaseServiceImpl<DictMapper, DictDO, DictRes
 
     @Override
     public void beforeCreate(DictReq req) {
-        String name = req.getName();
-        CheckUtils.throwIf(this.isNameExists(name, null), "新增失败，[{}] 已存在", name);
-        String code = req.getCode();
-        CheckUtils.throwIf(this.isCodeExists(code, null), "新增失败，[{}] 已存在", code);
+        this.checkNameRepeat(req.getName(), null);
+        this.checkCodeRepeat(req.getCode(), null);
     }
 
     @Override
     public void beforeUpdate(DictReq req, Long id) {
-        String name = req.getName();
-        CheckUtils.throwIf(this.isNameExists(name, id), "修改失败，[{}] 已存在", name);
+        this.checkNameRepeat(req.getName(), id);
         DictDO oldDict = super.getById(id);
         CheckUtils.throwIfNotEqual(req.getCode(), oldDict.getCode(), "不允许修改字典编码");
     }
@@ -80,24 +77,28 @@ public class DictServiceImpl extends BaseServiceImpl<DictMapper, DictDO, DictRes
     }
 
     /**
-     * 名称是否存在
+     * 检查名称是否重复
      *
      * @param name 名称
      * @param id   ID
-     * @return 是否存在
      */
-    private boolean isNameExists(String name, Long id) {
-        return baseMapper.lambdaQuery().eq(DictDO::getName, name).ne(id != null, DictDO::getId, id).exists();
+    private void checkNameRepeat(String name, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
+            .eq(DictDO::getName, name)
+            .ne(id != null, DictDO::getId, id)
+            .exists(), "名称为 [{}] 的字典已存在", name);
     }
 
     /**
-     * 编码是否存在
+     * 检查编码是否重复
      *
      * @param code 编码
      * @param id   ID
-     * @return 是否存在
      */
-    private boolean isCodeExists(String code, Long id) {
-        return baseMapper.lambdaQuery().eq(DictDO::getCode, code).ne(id != null, DictDO::getId, id).exists();
+    private void checkCodeRepeat(String code, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
+            .eq(DictDO::getCode, code)
+            .ne(id != null, DictDO::getId, id)
+            .exists(), "编码为 [{}] 的字典已存在", code);
     }
 }
\ No newline at end of file
diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/MenuServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/MenuServiceImpl.java
index bacfe79f..ece05383 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/MenuServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/MenuServiceImpl.java
@@ -62,12 +62,10 @@ public class MenuServiceImpl extends BaseServiceImpl<MenuMapper, MenuDO, MenuRes
 
     @Override
     public Long create(MenuReq req) {
-        String title = req.getTitle();
-        CheckUtils.throwIf(this.isTitleExists(title, req.getParentId(), null), "新增失败，标题 [{}] 已存在", title);
+        this.checkTitleRepeat(req.getTitle(), req.getParentId(), null);
         // 目录和菜单的组件名称不能重复
         if (!MenuTypeEnum.BUTTON.equals(req.getType())) {
-            String name = req.getName();
-            CheckUtils.throwIf(this.isNameExists(name, null), "新增失败，组件名称 [{}] 已存在", name);
+            this.checkNameRepeat(req.getName(), null);
         }
         // 目录类型菜单，默认为 Layout
         if (MenuTypeEnum.DIR.equals(req.getType())) {
@@ -79,12 +77,10 @@ public class MenuServiceImpl extends BaseServiceImpl<MenuMapper, MenuDO, MenuRes
 
     @Override
     public void update(MenuReq req, Long id) {
-        String title = req.getTitle();
-        CheckUtils.throwIf(this.isTitleExists(title, req.getParentId(), id), "修改失败，标题 [{}] 已存在", title);
+        this.checkTitleRepeat(req.getTitle(), req.getParentId(), id);
         // 目录和菜单的组件名称不能重复
         if (!MenuTypeEnum.BUTTON.equals(req.getType())) {
-            String name = req.getName();
-            CheckUtils.throwIf(this.isNameExists(name, id), "修改失败，组件名称 [{}] 已存在", name);
+            this.checkNameRepeat(req.getName(), id);
         }
         MenuDO oldMenu = super.getById(id);
         CheckUtils.throwIfNotEqual(req.getType(), oldMenu.getType(), "不允许修改菜单类型");
@@ -168,33 +164,31 @@ public class MenuServiceImpl extends BaseServiceImpl<MenuMapper, MenuDO, MenuRes
     }
 
     /**
-     * 标题是否存在
+     * 检查标题是否重复
      *
      * @param title    标题
      * @param parentId 上级 ID
      * @param id       ID
-     * @return true：存在；false：不存在
      */
-    private boolean isTitleExists(String title, Long parentId, Long id) {
-        return baseMapper.lambdaQuery()
+    private void checkTitleRepeat(String title, Long parentId, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
             .eq(MenuDO::getTitle, title)
             .eq(MenuDO::getParentId, parentId)
             .ne(id != null, MenuDO::getId, id)
-            .exists();
+            .exists(), "标题为 [{}] 的菜单已存在", title);
     }
 
     /**
-     * 名称是否存在
+     * 检查组件名称是否重复
      *
-     * @param name 标题
+     * @param name 组件名称
      * @param id   ID
-     * @return true：存在；false：不存在
      */
-    private boolean isNameExists(String name, Long id) {
-        return baseMapper.lambdaQuery()
+    private void checkNameRepeat(String name, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
             .eq(MenuDO::getName, name)
             .ne(MenuDO::getType, MenuTypeEnum.BUTTON)
             .ne(id != null, MenuDO::getId, id)
-            .exists();
+            .exists(), "组件名称为 [{}] 的菜单已存在", name);
     }
 }
diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/RoleServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/RoleServiceImpl.java
index 834e861e..ee5e6e4e 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/RoleServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/RoleServiceImpl.java
@@ -65,12 +65,11 @@ public class RoleServiceImpl extends BaseServiceImpl<RoleMapper, RoleDO, RoleRes
     @Override
     @Transactional(rollbackFor = Exception.class)
     public Long create(RoleReq req) {
-        String name = req.getName();
-        CheckUtils.throwIf(this.isNameExists(name, null), "新增失败，[{}] 已存在", name);
+        this.checkNameRepeat(req.getName(), null);
         String code = req.getCode();
-        CheckUtils.throwIf(this.isCodeExists(code, null), "新增失败，[{}] 已存在", code);
+        this.checkCodeRepeat(code, null);
         // 防止租户添加超管
-        CheckUtils.throwIf(SysConstants.SUPER_ROLE_CODE.equals(code), "新增失败，编码 [{}] 禁止使用", code);
+        CheckUtils.throwIfEqual(SysConstants.SUPER_ROLE_CODE, code, "编码 [{}] 禁止使用", code);
         // 新增信息
         Long roleId = super.create(req);
         // 保存角色和部门关联
@@ -81,8 +80,7 @@ public class RoleServiceImpl extends BaseServiceImpl<RoleMapper, RoleDO, RoleRes
     @Override
     @Transactional(rollbackFor = Exception.class)
     public void update(RoleReq req, Long id) {
-        String name = req.getName();
-        CheckUtils.throwIf(this.isNameExists(name, id), "修改失败，[{}] 已存在", name);
+        this.checkNameRepeat(req.getName(), id);
         RoleDO oldRole = super.getById(id);
         CheckUtils.throwIfNotEqual(req.getCode(), oldRole.getCode(), "角色编码不允许修改", oldRole.getName());
         DataScopeEnum oldDataScope = oldRole.getDataScope();
@@ -210,25 +208,29 @@ public class RoleServiceImpl extends BaseServiceImpl<RoleMapper, RoleDO, RoleRes
     }
 
     /**
-     * 名称是否存在
+     * 检查名称是否重复
      *
      * @param name 名称
      * @param id   ID
-     * @return 是否存在
      */
-    private boolean isNameExists(String name, Long id) {
-        return baseMapper.lambdaQuery().eq(RoleDO::getName, name).ne(id != null, RoleDO::getId, id).exists();
+    private void checkNameRepeat(String name, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
+            .eq(RoleDO::getName, name)
+            .ne(id != null, RoleDO::getId, id)
+            .exists(), "名称为 [{}] 的角色已存在", name);
     }
 
     /**
-     * 编码是否存在
+     * 检查编码是否重复
      *
      * @param code 编码
      * @param id   ID
-     * @return 是否存在
      */
-    private boolean isCodeExists(String code, Long id) {
-        return baseMapper.lambdaQuery().eq(RoleDO::getCode, code).ne(id != null, RoleDO::getId, id).exists();
+    private void checkCodeRepeat(String code, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
+            .eq(RoleDO::getCode, code)
+            .ne(id != null, RoleDO::getId, id)
+            .exists(), "编码为 [{}] 的角色已存在", code);
     }
 
     /**
diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/StorageServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/StorageServiceImpl.java
index 3734b3b3..a0ad7058 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/StorageServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/StorageServiceImpl.java
@@ -75,8 +75,7 @@ public class StorageServiceImpl extends BaseServiceImpl<StorageMapper, StorageDO
         storageType.validate(req);
         storageType.pretreatment(req);
         // 校验存储编码
-        String code = req.getCode();
-        CheckUtils.throwIf(this.isCodeExists(code, null), "新增失败，[{}] 已存在", code);
+        this.checkCodeRepeat(req.getCode(), null);
         // 需要独立操作来指定默认存储
         req.setIsDefault(false);
         // 加载存储引擎
@@ -245,13 +244,15 @@ public class StorageServiceImpl extends BaseServiceImpl<StorageMapper, StorageDO
     }
 
     /**
-     * 编码是否存在
+     * 检查编码是否重复
      *
      * @param code 编码
      * @param id   ID
-     * @return 是否存在
      */
-    private boolean isCodeExists(String code, Long id) {
-        return baseMapper.lambdaQuery().eq(StorageDO::getCode, code).ne(id != null, StorageDO::getId, id).exists();
+    private void checkCodeRepeat(String code, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
+            .eq(StorageDO::getCode, code)
+            .ne(id != null, StorageDO::getId, id)
+            .exists(), "编码为 [{}] 的存储配置已存在", code);
     }
 }
\ No newline at end of file
diff --git a/continew-system/src/main/java/top/continew/admin/system/service/impl/UserServiceImpl.java b/continew-system/src/main/java/top/continew/admin/system/service/impl/UserServiceImpl.java
index 9bd8c5f8..2ac921cf 100644
--- a/continew-system/src/main/java/top/continew/admin/system/service/impl/UserServiceImpl.java
+++ b/continew-system/src/main/java/top/continew/admin/system/service/impl/UserServiceImpl.java
@@ -138,13 +138,13 @@ public class UserServiceImpl extends BaseServiceImpl<UserMapper, UserDO, UserRes
 
     @Override
     public void beforeCreate(UserReq req) {
-        final String errorMsgTemplate = "新增失败，[{}] 已存在";
-        String username = req.getUsername();
-        CheckUtils.throwIf(this.isNameExists(username, null), errorMsgTemplate, username);
+        this.checkUsernameRepeat(req.getUsername(), null);
         String email = req.getEmail();
-        CheckUtils.throwIf(StrUtil.isNotBlank(email) && this.isEmailExists(email, null), errorMsgTemplate, email);
+        CheckUtils.throwIf(StrUtil.isNotBlank(email) && this.isEmailExists(email, null), "邮箱为 [%s] 的用户已存在"
+            .formatted(email));
         String phone = req.getPhone();
-        CheckUtils.throwIf(StrUtil.isNotBlank(phone) && this.isPhoneExists(phone, null), errorMsgTemplate, phone);
+        CheckUtils.throwIf(StrUtil.isNotBlank(phone) && this.isPhoneExists(phone, null), "手机号为 [%s] 的用户已存在"
+            .formatted(phone));
     }
 
     @Override
@@ -159,13 +159,13 @@ public class UserServiceImpl extends BaseServiceImpl<UserMapper, UserDO, UserRes
     @Transactional(rollbackFor = Exception.class)
     @CacheUpdate(key = "#id", value = "#req.nickname", name = CacheConstants.USER_KEY_PREFIX)
     public void update(UserReq req, Long id) {
-        final String errorMsgTemplate = "修改失败，[{}] 已存在";
-        String username = req.getUsername();
-        CheckUtils.throwIf(this.isNameExists(username, id), errorMsgTemplate, username);
+        this.checkUsernameRepeat(req.getUsername(), id);
         String email = req.getEmail();
-        CheckUtils.throwIf(StrUtil.isNotBlank(email) && this.isEmailExists(email, id), errorMsgTemplate, email);
+        CheckUtils.throwIf(StrUtil.isNotBlank(email) && this.isEmailExists(email, id), "邮箱为 [%s] 的用户已存在"
+            .formatted(email));
         String phone = req.getPhone();
-        CheckUtils.throwIf(StrUtil.isNotBlank(phone) && this.isPhoneExists(phone, id), errorMsgTemplate, phone);
+        CheckUtils.throwIf(StrUtil.isNotBlank(phone) && this.isPhoneExists(phone, id), "手机号为 [%s] 的用户已存在"
+            .formatted(phone));
         DisEnableStatusEnum newStatus = req.getStatus();
         CheckUtils.throwIf(DisEnableStatusEnum.DISABLE.equals(newStatus) && ObjectUtil.equal(id, UserContextHolder
             .getUserId()), "不允许禁用当前用户");
@@ -670,14 +670,16 @@ public class UserServiceImpl extends BaseServiceImpl<UserMapper, UserDO, UserRes
     }
 
     /**
-     * 名称是否存在
+     * 检查用户名是否重复
      *
-     * @param name 名称
-     * @param id   ID
-     * @return 是否存在
+     * @param username 用户名
+     * @param id       ID
      */
-    private boolean isNameExists(String name, Long id) {
-        return baseMapper.lambdaQuery().eq(UserDO::getUsername, name).ne(id != null, UserDO::getId, id).exists();
+    private void checkUsernameRepeat(String username, Long id) {
+        CheckUtils.throwIf(baseMapper.lambdaQuery()
+            .eq(UserDO::getUsername, username)
+            .ne(id != null, UserDO::getId, id)
+            .exists(), "用户名为 [{}] 的用户已存在", username);
     }
 
     /**