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php页面 实现 数据库变动 ,页面自动刷新

Jun 06, 2016 pm 08:14 PM
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php页面 实现 数据库变动 ,页面自动刷新

如何实现
不用轮询

回复内容:

php页面 实现 数据库变动 ,页面自动刷新

如何实现
不用轮询

WebSocket 可能是你需要的

如果不用轮训就只能用WebSocket了。这个支持的浏览器比较少。

页面刷新,是浏览器行为,php控制不了。
剩下的几种方式:

  1. WebSocket,前端拽着浏览器不放,后端监控的mysql变化。

  2. 前端用js做定时检查,一直拉着后端php,php再去检查mysql数据是否有变化。比较像segmentfault.com的消息提醒,或者页面扫二维码登陆。

既然LZ说了不用轮询,那么可以先排除掉Ajax长轮训了。下面只列两种方案,但第二种不建议

1.Websocket:上面已经有很多人说过了。

2.Server Send Event:支持的浏览器较少,如果你的场景允许,可以试试。

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