diff --git a/src/main/java/com/aida/lanecarford/service/impl/CustomerServiceImpl.java b/src/main/java/com/aida/lanecarford/service/impl/CustomerServiceImpl.java
index 63a199d..4bfaa53 100644
--- a/src/main/java/com/aida/lanecarford/service/impl/CustomerServiceImpl.java
+++ b/src/main/java/com/aida/lanecarford/service/impl/CustomerServiceImpl.java
@@ -4,6 +4,7 @@ import com.aida.lanecarford.common.security.context.UserContext;
 import com.aida.lanecarford.dto.BaseRequest;
 import com.aida.lanecarford.entity.Customer;
 import com.aida.lanecarford.entity.VisitRecord;
+import com.aida.lanecarford.exception.BusinessException;
 import com.aida.lanecarford.mapper.CustomerMapper;
 import com.aida.lanecarford.service.CustomerService;
 import com.aida.lanecarford.service.VisitRecordService;
@@ -14,6 +15,7 @@ import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import io.netty.util.internal.StringUtil;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
@@ -31,6 +33,9 @@ public class CustomerServiceImpl extends ServiceImpl<CustomerMapper, Customer> i
 
     // 选择顾客登录并添加入店记录
     public CustomerCheckInVO customerCheckIn(String vipId) {
+        if (StringUtil.isNullOrEmpty(vipId)) {
+            throw new BusinessException("Please enter a VIP ID.");
+        }
         // 1. 判断当前顾客信息在数据库中是否有存储
         LambdaQueryWrapper<Customer> queryWrapper = new LambdaQueryWrapper<>();
         queryWrapper.eq(Customer::getVipId, vipId);