update 优化 部分使用者乱设权限导致无法获取用户信息 增加权限提示

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/system/SysUserController.java

@@ -112,6 +112,9 @@ public class SysUserController extends BaseController {
             TenantHelper.clearDynamic();
         }
         SysUserVo user = userService.selectUserById(loginUser.getUserId());
+        if (ObjectUtil.isNull(user)) {
+            return R.fail("没有权限访问用户数据!");
+        }
         userInfoVo.setUser(user);
         userInfoVo.setPermissions(loginUser.getMenuPermission());
         userInfoVo.setRoles(loginUser.getRolePermission());