javascript - New deployment, have browser cache cleared the first time the page is loaded

Question

The situation:

• Application deployed and in use.

• JavaScript / jQuery (in .js file) updates made.

• Application redeployed

• User does not see JavaScript changes unless they clear their cache.

This is presenting non-trivial issues.

Is there a way to have the cache cleared:

1. Automatically and
2. Just on the first load (cache as normal after that) when a new deployment is rolled out?

Answer 1

使用jawr，这将根据更改为每个文件创建哈希（如果文件未更改，则不会为该文件创建新哈希） https://jawr.java.net/

Answer 2

您可以在文件名中添加一个参数。比如：path/to/styles.css?deployed=20130424 和 path/to/scripts.js?deployed=20130424