89 lines
2.3 KiB
Markdown
89 lines
2.3 KiB
Markdown
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# 菜单修改说明
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## 问题描述
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需要修改侧边栏菜单：
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- 删除第一个"test"菜单项
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- 将第二个"test"菜单项改为"系统管理"
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## 解决方案
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菜单数据存储在数据库的 `sys_menu` 表中，需要通过SQL语句直接修改数据库。
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## 执行步骤
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### 1. 查看当前菜单结构
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```sql
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SELECT id, parent_id, name, type, sort, icon
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FROM sys_menu
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WHERE is_delete = 0
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ORDER BY sort;
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```
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### 2. 查看所有"test"菜单项
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```sql
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SELECT id, parent_id, name, type, sort, icon
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FROM sys_menu
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WHERE name = 'test' AND is_delete = 0
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ORDER BY sort;
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```
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### 3. 执行修改
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运行 `update_menu_names_final.sql` 文件中的SQL语句：
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```sql
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-- 删除sort值最小的"test"菜单项
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DELETE FROM sys_menu
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WHERE name = 'test'
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AND parent_id = 0
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AND is_delete = 0
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AND sort = (
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SELECT min_sort FROM (
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SELECT MIN(sort) as min_sort
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FROM sys_menu
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WHERE name = 'test' AND parent_id = 0 AND is_delete = 0
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) t
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);
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-- 将剩余的"test"菜单项改为"系统管理"
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UPDATE sys_menu
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SET name = '系统管理',
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update_time = NOW()
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WHERE name = 'test'
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AND parent_id = 0
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AND is_delete = 0;
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```
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### 4. 验证修改结果
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```sql
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SELECT id, parent_id, name, type, sort, icon
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FROM sys_menu
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WHERE is_delete = 0
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ORDER BY sort;
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```
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## 注意事项
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1. **备份数据**：执行SQL前请先备份 `sys_menu` 表
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2. **权限检查**：确保有足够的数据库权限执行DELETE和UPDATE操作
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3. **测试环境**：建议先在测试环境执行，确认无误后再在生产环境执行
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4. **前端缓存**：修改后可能需要清除前端缓存或重新登录才能看到效果
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## 菜单表结构说明
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- `id`: 菜单ID（主键）
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- `parent_id`: 父菜单ID（0表示顶级菜单）
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- `name`: 菜单显示名称
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- `type`: 菜单类型（0-目录，1-菜单，2-按钮）
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- `sort`: 排序字段（数字越小越靠前）
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- `icon`: 菜单图标
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- `is_delete`: 是否删除（0-未删除，1-已删除）
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## 前端影响
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修改数据库后，前端会通过以下API获取菜单：
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- API: `/getUserMenus`
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- 前端文件: `pc-cattle-transportation/src/store/permission.js`
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- 菜单渲染: `pc-cattle-transportation/src/components/layout/index.vue`
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修改完成后，用户需要重新登录或刷新页面才能看到新的菜单结构。
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