修改sn号重复注册问题

device-api-service/src/main/java/com/xy/service/DeviceRegisterServiceImpl.java

@@ -62,10 +62,14 @@ public class DeviceRegisterServiceImpl extends ServiceImpl<DeviceRegisterMapper,
         DeviceRegister deviceRegister = copy(DeviceRegister.class, save);
         DeviceCreateIds deviceCreateIds = deviceCreateIdsMapper.selectById(deviceRegister.getDeviceId());
         if (deviceCreateIds == null) {
-            return R.fail("设备不存在");
+            return R.fail("设备ID不存在");
         }
         if (deviceCreateIds.getBindState()) {
-            return R.fail("设备已被绑定");
+            return R.fail("设备ID已被绑定");
+        }
+        long count = count(new LambdaQueryWrapper<DeviceRegister>().eq(DeviceRegister::getDeviceSn, save.getDeviceSn()));
+        if (count > 0) {
+            return R.fail("设备SN已被绑定");
         }
         deviceRegister.setDeviceType(deviceCreateIds.getDeviceType())
                 .setCreateUser(AuthorizeUtils.getLoginId(Long.class))
@@ -79,7 +83,11 @@ public class DeviceRegisterServiceImpl extends ServiceImpl<DeviceRegisterMapper,
         Integer registerNum = one == null || one.getRegisterNum() == null ? 0 : one.getRegisterNum();
         deviceRegister.setRegisterNum(registerNum + 1);
         //修改设备-机器ID号生成为已绑定
-        deviceCreateIdsMapper.updateById(new DeviceCreateIds().setDeviceId(deviceRegister.getDeviceId()).setBindState(true).setBindTime(deviceRegister.getCreateTime()));
+        deviceCreateIdsMapper.updateById(new DeviceCreateIds()
+                .setDeviceId(deviceRegister.getDeviceId())
+                .setBindState(true)
+                .setBindTime(deviceRegister.getCreateTime())
+        );
         //新增设备-注册登记
         save(deviceRegister);
         //新增设备信息