diff --git a/win-module-system/win-module-system-biz/src/main/java/com/win/module/system/service/permission/PermissionServiceImpl.java b/win-module-system/win-module-system-biz/src/main/java/com/win/module/system/service/permission/PermissionServiceImpl.java
index f2a5f0a6..7df79183 100644
--- a/win-module-system/win-module-system-biz/src/main/java/com/win/module/system/service/permission/PermissionServiceImpl.java
+++ b/win-module-system/win-module-system-biz/src/main/java/com/win/module/system/service/permission/PermissionServiceImpl.java
@@ -4,9 +4,6 @@ import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.collection.CollectionUtil;
 import cn.hutool.core.util.ArrayUtil;
 import cn.hutool.extra.spring.SpringUtil;
-import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Suppliers;
-import com.google.common.collect.Sets;
 import com.win.framework.common.enums.CommonStatusEnum;
 import com.win.framework.common.util.collection.CollectionUtils;
 import com.win.framework.datapermission.core.annotation.DataPermission;
@@ -21,6 +18,10 @@ import com.win.module.system.dal.redis.RedisKeyConstants;
 import com.win.module.system.enums.permission.DataScopeEnum;
 import com.win.module.system.service.dept.DeptService;
 import com.win.module.system.service.user.AdminUserService;
+import com.baomidou.dynamic.datasource.annotation.DSTransactional;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Suppliers;
+import com.google.common.collect.Sets;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.cache.annotation.CacheEvict;
 import org.springframework.cache.annotation.Cacheable;
@@ -130,8 +131,9 @@ public class PermissionServiceImpl implements PermissionService {
     // ========== 角色-菜单的相关方法  ==========
 
     @Override
-    @Transactional
-    @CacheEvict(value = RedisKeyConstants.MENU_ROLE_ID_LIST, allEntries = true) // allEntries 清空所有缓存，主要一次更新涉及到的 menuIds 较多，反倒批量会更快
+    @Transactional // 多数据源，使用 @DSTransactional 保证本地事务，以及数据源的切换
+    @CacheEvict(value = RedisKeyConstants.MENU_ROLE_ID_LIST,
+            allEntries = true) // allEntries 清空所有缓存，主要一次更新涉及到的 menuIds 较多，反倒批量会更快
     public void assignRoleMenu(Long roleId, Set<Long> menuIds) {
         // 获得角色拥有菜单编号
         Set<Long> dbMenuIds = convertSet(roleMenuMapper.selectListByRoleId(roleId), RoleMenuDO::getMenuId);