限制绑定接口

license/src/main/java/iot/sixiang/license/service/impl/DeviceServiceImpl.java

@@ -77,6 +77,9 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> impleme
         queryWrapper.eq(Device::getSn, sn).last("limit 1");
         Device device = deviceMapper.selectOne(queryWrapper);
         if (device != null) {
+            if (!StringUtils.isEmpty(device.getSnBind())) {
+                throw new IotLicenseException(403, "sn已被绑定");
+            }
             device.setSnBind(snBind);
             device.setStatus(1);
             device.setUpdateTime(new Date());