In our project, we have downloaded the Dojo and jQuery libraries from Google CDNs. I am currently seeking a Java tool that can both cache and minify these libraries. The caching process should take place within the ROOT project of Tomcat. While I am aware of the effectiveness of YUI Compressor as a minifier, I am hoping to find an open source alternative that can fulfill both caching and minifying functions.
When it comes to compressing and bundling javascript and other web assets (such as css), wro4j stands out as incredibly versatile. While I'm unsure if it caches in the exact manner you mentioned, it does offer a servlet that can be utilized within tomcat.
One useful solution is to use JS and CSS compression. By minifying JS files, you can combine multiple files into one, which also applies to CSS files. This results in faster loading times as the browser only needs to cache a single file instead of multiple.
My approach involved utilizing the grunt JavaScript library to compress the JS and CSS within my application. The initial step was creating a gruntexe.js file, followed by the creation of a build.sh file to facilitate the installation and execution of grunt.
A glimpse at the sample gruntfile.js is showcased below:
module.exports = function (grunt) {
grunt.initConfig({
bower: {
install: {
options: {
targetDir: './src',
cleanBowerDir: true
}
}
},
exec: {
buildUI: {
command: 'chmod 755 ./build.sh && chmod 755 ./build.sh && ./build.sh'
}
},
replace: {
replaceHtmlCacheTag: {
src: ['./*.html', './cache.manifest'],
dist: ['../'], // Minify all js file in dist folder
replacements: [{
from: /\$\{timestamp\}/g,
to: "<%= grunt.template.today('ddmmyyyyhMMss') %>"
}]
}
}
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