HTML implements automatic cleaning of the cache of js and css files

The method is as follows:

1. Manually clear the browser cache;

2. Add the version number (such as layout.css?v=1)

Personally, I think method 2 is faster, because clearing the browser cache requires waiting for the browser to respond. But it is troublesome to change the version number every time, so we need to find a way to automatically add the version number.

(Recommended tutorial:html tutorial)

Method 1: You can automatically add the version number to html through js

Method 2: If it is a jsp page , you can use java code to generate timestamps (if it is a jsp page, you can also use method 1, but this method is more convenient)

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