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在顾客下单了之后，想做一个来单提醒功能，问一下大神，这个功能思路是怎么样的呀？？
First of all, you can use ajax polling, which is also a more commonly used method
There is also the websocket mentioned above to establish a long connection.
WebSocket
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
First of all, you can use ajax polling, which is also a more commonly used method
There is also the websocket mentioned above to establish a long connection.
WebSocket