修改bug

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

@@ -73,6 +73,12 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> impleme
     public Boolean terminalDevieBind(TerminalDevieBindDTO terminalDevieBindDTO) {
         String sn = terminalDevieBindDTO.getSn();
         String snBind = terminalDevieBindDTO.getSnBind();
+        LambdaQueryWrapper<Device> wrapper = new LambdaQueryWrapper<>();
+        wrapper.eq(Device::getSnBind, snBind).last("limit 1");
+        Device deviceTemp = deviceMapper.selectOne(wrapper);
+        if (deviceTemp != null) {
+            throw new IotLicenseException(403, "该设备已绑定了" + deviceTemp.getSn());
+        }
         LambdaQueryWrapper<Device> queryWrapper = new LambdaQueryWrapper<>();
         queryWrapper.eq(Device::getSn, sn).last("limit 1");
         Device device = deviceMapper.selectOne(queryWrapper);