Community Learn Tools Library Leisure
search
English
Home > Backend Development > PHP Tutorial > javascript - 不刷新页面就可以更新数据是怎么弄的？

javascript - 不刷新页面就可以更新数据是怎么弄的？

WBOY
Release： 2016-06-06 20:15:21
Original
1641 people have browsed it

例如一个订单提醒，我不刷新页面订单的数量会自动变化

回复内容：

例如一个订单提醒，我不刷新页面订单的数量会自动变化

1 ajax http轮询
2 long-polling
3 websocket长连接
4 基于flash socket实现

以上是4种方法。 还有其他。
推荐2和3. 简单场景，并发不大也可以用1. 1实现最简单。

Ajax异步请求

setInterval + Ajax

1.js 做一个定时器
2.5分钟请求一次ajax
3.回调的值进行数量赋值

AJAX/WEBSOCKET

fetch轮询

Related labels：
javascript php
source：php.cn
Previous article：请教一个php多维数组排序问题 Next article：PHP的一个IF语句总也写不好。
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
CSS only method to dynamically modify image src on click without using JavaScript I need to change the src of an image on mouse click using only css like img:active{}
From 2024-04-06 19:25:49
0
1
505
Scatterplot points do not maintain values ​​when zooming in d3.js This is my first time using d3.js, so please bear with me. I implemented it as pure JavaSc...
From 2024-04-06 18:16:26
0
1
403
JavaScript hover events on vendor-specific pseudo-elements I have the following htmlinput tag. $("input[type='range']::-webkit-slider-thumb"...
From 2024-04-06 15:35:24
0
1
274
Submit form without button using Javascript/Jquery I'm trying to submit a form without a button by calling a JavaScript function and executin...
From 2024-04-06 14:54:03
0
2
421
Customize the appearance of Bootstrap accordion headers using the CollapseDisplay class I want to style the card title of a panel with class collapseshow. In this example, it's t...
From 2024-04-06 12:53:11
0
1
376
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