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Home Backend Development PHP Tutorial 如何监听到数据库新增内容了,页面就马上自动刷新

如何监听到数据库新增内容了,页面就马上自动刷新

Jun 23, 2016 pm 02:18 PM

如何监听到数据库新增内容了,页面就马上自动刷新?php的?


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"页面就自动刷新"     那最好的办法就是用ajax轮询

每隔一段时间(比如五秒钟)发送一个请求到后台查询数据库是否有更新 如果是,刷新.如果没有更新,什么都不做,等待下次询问

ajax??查?????的最新id即可,如果查到的?果和你存入cookie的值不同?更新,同?把新的id?入cookie


ajax定时请求。
如何监听到数据库新增内容了,页面就马上自动刷新?php的?

html5 时代来了,可以用event-stream

普遍的做法是ajax 当然你也可以用定时刷新页面的方法 - - 或者 as...

html5 时代来了,可以用event-stream

event-stream有个缺点,对IE的支持不太好,对于中国目前的现状来说,不太适合

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