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HomeBackend DevelopmentPHP Tutorialwebsocket可以(或者说能够)代替ajax吗?

本人主力语言是PHP,这一阵有个想法,web应用,在不考虑兼容性的前提下,可以用socket来代替ajax的工作吗?

这样做(或者说该不该这样做)可以吗?
性能会否提升? 消耗会增加吗?

希望各位可以帮我解答一下(希望我这个不是一个很蠢的问题…),谢谢。

回复内容:

本人主力语言是PHP,这一阵有个想法,web应用,在不考虑兼容性的前提下,可以用socket来代替ajax的工作吗?

这样做(或者说该不该这样做)可以吗?
性能会否提升? 消耗会增加吗?

希望各位可以帮我解答一下(希望我这个不是一个很蠢的问题…),谢谢。

可以,页面这块性能肯定是有提升的,因为 Socket 对于 HTTP 有自己的有点,就是可以长时间 Hold 住,并且没有头部内容,这些好处对于性能来说都是有显著提升的。消耗来说,对服务器的消耗肯定会大一点,毕竟 N 个访问,你就要 Hold 住 N 个链接,这个事实摆在那里。

在不考虑兼容性的情况下。

  • 如果你对实时性的要求比较高的话,可以考虑用websocket,因为延时低了许多,比如做一些消息推送等功能,而且频繁通讯的话保持一个连接更好一点。
  • 如果只是不定时的做一个查询感觉应该还是用ajax就可以了吧。

个人意见,仅供参考~

对呢,现在两种需求都存在,为了提高实时性只能缩小轮询的时间,服务器也是吃不消。

所以想到socket上面去了,问题是之前没试过,也不知道实际消耗如何,没什么底

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