下发完成后，关闭ftp连接

sf_machine_connect/models/ftp_client.py

@@ -77,8 +77,9 @@ class FtpButton(models.Model):
             # 存在本地的文件下发到机床
             ftp.upload_file(remotepath=file_path_remote, localpath=file_path_local)
             _logger.info("======%s下发成功======" % a.display_name)
-            up_time = str(datetime.now())
+            ftp.close_ftp()
 
+            up_time = str(datetime.now())
             self.env['delivery.record'].create({
                 'workorder_id': self.workorder_id.id,
                 'delivery_type': '单个下发',
@@ -296,6 +297,7 @@ class WorkCenterBarcode(models.Model):
                 ftp.upload_file(remotepath=file_path_remote, localpath=file_path_local)
                 _logger.info("======%s下发成功======" % a.display_name)
                 item.button_state = True
+            ftp.close_ftp()
             # 增加一键下发记录
             up_time = str(datetime.now())
             sequence_str = ','.join(sequence_collect)