Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > 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。

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。

WBOY
Release： 2016-06-06 20:49:51
Original
985 people have browsed it

是定时ajax获取么？

回复内容：

是定时ajax获取么？

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。

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

xmpp + conversejs

  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。
Related labels：
javascript php web
source：php.cn
Previous article：memcached - 使用memcache做为php的session命中率如此的低... Next article：windows下php返回404的问题
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
PHP arrays obtained from URL parameters do not behave as expected I have a URL parameter that contains the category ID and I want to treat it as an array li...
From 2024-04-06 22:09:02
0
1
1428
Where should I place CustomLog directive in apache I'm using php:7.2-apachedocker. I need to disable health check url login access log. Based...
From 2024-04-06 22:03:59
0
1
990
What is the format of the variables in the return value? I am a new learner of php. I found a piece of code: if($x<time()){return[false,'error']...
From 2024-04-06 21:55:20
0
1
778
Problems encountered when using opentbs to generate odt files: values ​​of the same key are displayed in the same row instead of separate columns. I'm using a library called OpenTbs to create odt using PHP, I'm using it because columns a...
From 2024-04-06 20:18:18
0
1
483
Group MySQL results by ID for looping over I have a table with flight data in mysql. I'm writing a php code that will group and displ...
From 2024-04-06 17:27:56
0
1
406
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template