这个是用消息与事件接收的URL吧。
可参考 https://developers.weixin.qq.com/doc/oplatform/Third-party_Platforms/Before_Develop/third_party_platform_apply_material.html
https://developers.weixin.qq.com/doc/oplatform/Third-party_Platforms/Official_Accounts/Handling_of_news_and_events.html
