javascript - 弱问下嵌套在页面内的IM是怎么实现的？比如人人网右下角的。

Question

是定时ajax获取么？

Answer 1

javascript - I would like to ask how to implement IM nested in the page? For example, the one in the lower right corner of Renren.com. -PHP Chinese website Q&A-javascript - I would like to ask how to implement IM nested in the page? For example, the one in the lower right corner of Renren.com. -PHP Chinese website Q&A

Let’s take a look and learn.

Answer 2

long polling，或者叫做comet，就是用长连接挂在那里，这样在有消息的时候可以立刻返回；然后再建立一个新的长连接。

Answer 3

ajax定时获取可以实现，更好的方案是使用ajax长轮询，具体请自行google之

Answer 4

xmpp + conversejs

Answer 5

1. comet长连接
2. 高级浏览器websockets
3. ajax轮询，实时性要求不高的情况时。