jquery - 用php实现内容实时更新就像新浪微博那样发出一条微博就能立刻显示
用php实现内容实时更新,就像新浪微博那样发出一条微博就能立刻显示的,求大神给点意见,这个代码应该怎么写??
回复内容:
用php实现内容实时更新,就像新浪微博那样发出一条微博就能立刻显示的,求大神给点意见,这个代码应该怎么写??
JavaScript
,form
表单做一个onsubmit
的事件监听,然后获取输入框中的内容,用ajax
POST到后端,后端插入数据库成功后HTTP response header
返回201 Created
,前端JavaScript
把刚POST的文本内容生成一个HTML element插入到原来的DOM tree里
每个英文都是一个关键词,不懂的话google一下
新浪微博的实时显示实际上是在发布内容成功的同时由JS直接将服务器端过滤和格式化后的内容写到页面上,方法与@yegle 所说有差异。
主要原因是,@yegle 所说的实现要求JS端能够对内容实现相同的过滤和处理,但事实上,在Web 2.0站点中,能这样做的场景很少,内容通常需要经过与其他用户数据的相互关联才可以拥有全部功能。
已经经过服务器端处理返回的内容直接由JS写入页面的原因是,微博本身的分发需要时间,自己刚刚发的往往不能立即显示在feed流中,所以有此操作。

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