pack:tag

A JSP Taglib for delivering minified, combined and gzip-compressed resources (JavaScript and CSS).

Usage

To use the taglib in a JSP, you have to declare it first:

<%@ taglib uri="https://github.com/d8bitr/packtag" prefix="pack" %>

(You can still use the old uri 'http://packtag.sf.net' for backward compatibility)

Now you can easily pack JavaScript by using the following tag:

<pack:script src="/js/myJavaScriptFile.js"/>

Accordingly for Cascading Style Sheets:

<pack:style src="/css/myCascadingStyleSheet.css"/>

You can enable and disable each tag individually by setting the attribute enabled to false, e.g.:

<pack:script src="/js/myJavaScriptFile.js" enabled="false"/>

You can combine resources simply by listing them up:

<pack:script>
  <src>/js/myJavaScriptFile.js</src>
  <src>/js/mySecondJavaScriptFile.js</src>
</pack:script>

That's it.

If you want to deepen your knowledge and learn about advanced techniques, I suggest reading "pack:tag - a packed guide to website performance optimization".

Integration

Maven (preferred)

1. Use the maven repository and artifact on github.
2. Copy the <servlet> and <servlet-mapping> from the web.xml into your /WEB-INF/web.xml

Manual

1. Download the pack:tag archive from https://github.com/galan/packtag/releases and unpack the packtag-x.y.zip file to e.g. packtag
2. Copy packtag/files/packtag-x.y.jar into your web-applications WEB-INF/lib directory
3. Copy the <servlet> and <servlet-mapping> from the packtag/files/web.xml into your /WEB-INF/web.xml