限制绑定接口

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

@@ -78,8 +78,12 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> impleme
         Device device = deviceMapper.selectOne(queryWrapper);
         if (device != null) {
             if (!StringUtils.isEmpty(device.getSnBind())) {
+                if (device.getSnBind().equals(snBind)) {
+                    return true;
+                } else {
                     throw new IotLicenseException(403, "sn已被绑定");
                 }
+            }
             device.setSnBind(snBind);
             device.setStatus(1);
             device.setUpdateTime(new Date());