fix(violation):修复违章记录添加逻辑和查询重复问题- 调整HjmViolationController中车辆编号校验逻辑的位置

- 在HjmViolationMapper.xml的关联查询中添加DISTINCT关键字去重
- 确保违章记录保存前进行车辆存在性验证
- 优化返回结果处理逻辑避免重复数据产生

src/main/java/com/gxwebsoft/hjm/controller/HjmViolationController.java

@@ -70,7 +70,6 @@ public class HjmViolationController extends BaseController {
     User loginUser = getLoginUser();
     if (loginUser != null) {
       hjmViolation.setUserId(loginUser.getUserId());
-    }
       final HjmCar car = hjmCarService.getByCode(hjmViolation.getCode());
       if (ObjUtil.isEmpty(car)) {
         return fail("车辆编号不存在");
@@ -79,6 +78,7 @@ public class HjmViolationController extends BaseController {
         hjmViolationService.send(hjmViolation);
         return success("添加成功");
       }
+    }
     return fail("添加失败");
   }
 

src/main/java/com/gxwebsoft/hjm/mapper/xml/HjmViolationMapper.xml

@@ -4,7 +4,7 @@
 
     <!-- 关联查询sql -->
     <sql id="selectSql">
-        SELECT a.*,b.image
+        SELECT DISTINCT a.*,b.image
         FROM hjm_violation a
         LEFT JOIN hjm_car b ON a.code = b.code
         LEFT JOIN gxwebsoft_core.sys_organization c ON b.organization_id = c.organization_id