diff --git a/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbPlussShopStaffServiceImpl.java b/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbPlussShopStaffServiceImpl.java
index 7fa1082a..007deca3 100644
--- a/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbPlussShopStaffServiceImpl.java
+++ b/eladmin-system/src/main/java/cn/ysk/cashier/service/impl/shopimpl/TbPlussShopStaffServiceImpl.java
@@ -16,6 +16,7 @@
 package cn.ysk.cashier.service.impl.shopimpl;
 
 import cn.ysk.cashier.exception.BadRequestException;
+import cn.ysk.cashier.exception.EntityExistException;
 import cn.ysk.cashier.pojo.shop.TbPlussShopStaff;
 import cn.ysk.cashier.system.domain.Dept;
 import cn.ysk.cashier.system.domain.Job;
@@ -129,6 +130,9 @@ public class TbPlussShopStaffServiceImpl implements TbPlussShopStaffService {
         job.setId(10L);
         jobs.add(job);
         user.setJobs(jobs);
+        if (userRepository.findByUsername(user.getUsername()) != null) {
+            throw new EntityExistException(User.class, "username", user.getUsername());
+        }
         userRepository.save(user);
         return tbPlussShopStaffMapper.toDto(tbPlussShopStaffRepository.save(resources));
     }