<select id="selectMenusByUserId" parameterType="Long" resultMap="SysMenuResult">
select distinct m.menu_id, m.parent_id, m.menu_name, m.url, m.visible, m.is_refresh, ifnull(m.perms,'') as perms, m.target, m.menu_type, m.icon, m.order_num, m.create_time
from sys_menu m
left join sys_role_menu rm on m.menu_id = rm.menu_id
left join sys_user_role ur on rm.role_id = ur.role_id
left join sys_role ro on ur.role_id = ro.role_id
where ur.user_id = #{userId} and m.menu_type in ('M', 'C') and m.visible = 0 AND ro.status = 0
order by m.parent_id, m.order_num
</select>
// 系统首页
@GetMapping("/index")
public String index(ModelMap mmap)
{
// 取身份信息
SysUser user = getSysUser();
// 根据用户id取出菜单
List<SysMenu> menus = menuService.selectMenusByUser(user);
}
后端
@Controller
@RequestMapping("/system/menu")
public class SysMenuController extends BaseController
{
/**
* 删除菜单
*/
@Log(title = "菜单管理", businessType = BusinessType.DELETE)
@RequiresPermissions("system:menu:remove")
@GetMapping("/remove/{menuId}")
@ResponseBody
public AjaxResult remove(@PathVariable("menuId") Long menuId)
{
if (menuService.selectCountMenuByParentId(menuId) > 0)
{
return AjaxResult.warn("存在子菜单,不允许删除");
}
if (menuService.selectCountRoleMenuByMenuId(menuId) > 0)
{
return AjaxResult.warn("菜单已分配,不允许删除");
}
AuthorizationUtils.clearAllCachedAuthorizationInfo();
return toAjax(menuService.deleteMenuById(menuId));
}
}
前端
<script>
var removeFlag = [[${@permission.hasPermi('system:menu:remove')}]];
{
title: '操作',
width: '20',
widthUnit: '%',
align: "left",
formatter: function(value, row, index) {
var actions = [];
actions.push('<a class="btn btn-success btn-xs ' + editFlag + '" href="javascript:void(0)" οnclick="$.operate.edit(\'' + row.menuId + '\')"><i class="fa fa-edit"></i>编辑</a> ');
actions.push('<a class="btn btn-info btn-xs ' + addFlag + '" href="javascript:void(0)" οnclick="$.operate.add(\'' + row.menuId + '\')"><i class="fa fa-plus"></i>新增</a> ');
actions.push('<a class="btn btn-danger btn-xs ' + removeFlag + '" href="javascript:void(0)" οnclick="$.operate.remove(\'' + row.menuId + '\')"><i class="fa fa-trash"></i>删除</a>');
return actions.join('');
}
}
</script>
数据库表
1. 传入userId，查询用户菜单
2. 根据查询到的menu list，获得parentId
3. 根据parentId，删除记录