From 302a7aa2b0a5324111cfa49cf71a2deba7a1a0d9 Mon Sep 17 00:00:00 2001
From: mitao <2763622819@qq.com>
Date: 星期四, 27 三月 2025 17:32:22 +0800
Subject: [PATCH] Merge branch 'master' of https://gitee.com/boymi/YiFeiNN

---
 medicalWaste-system/src/main/java/com/sinata/system/service/impl/MwTransitCarServiceImpl.java |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/medicalWaste-system/src/main/java/com/sinata/system/service/impl/MwTransitCarServiceImpl.java b/medicalWaste-system/src/main/java/com/sinata/system/service/impl/MwTransitCarServiceImpl.java
index 8ecf276..357f8f2 100644
--- a/medicalWaste-system/src/main/java/com/sinata/system/service/impl/MwTransitCarServiceImpl.java
+++ b/medicalWaste-system/src/main/java/com/sinata/system/service/impl/MwTransitCarServiceImpl.java
@@ -99,6 +99,11 @@
         if (Objects.isNull(dto.getId())) {
             throw new ServiceException("车辆id不能为空");
         }
+        Long count = lambdaQuery().eq(MwTransitCar::getLicensePlateNumber,
+                dto.getLicensePlateNumber()).ne(MwTransitCar::getId, dto.getId()).count();
+        if (count > 0) {
+            throw new ServiceException("车牌号已存在");
+        }
         MwTransitCar mwTransitCar = BeanUtils.copyBean(dto, MwTransitCar.class);
         updateById(mwTransitCar);
     }

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