{"id":21089,"date":"2023-02-13T05:22:29","date_gmt":"2023-02-13T05:22:29","guid":{"rendered":"https:\/\/www.booksofall.com\/pl\/?post_type=product&p=21089"},"modified":"2023-02-13T05:22:30","modified_gmt":"2023-02-13T05:22:30","slug":"apache-jakarta-commons-reusable-java-components","status":"publish","type":"product","link":"https:\/\/www.booksofall.com\/pl\/apache-jakarta-commons-reusable-java-components\/","title":{"rendered":"Apache Jakarta Commons: Reusable Java Components"},"content":{"rendered":"

I originally noticed the Jakarta Commons<\/a> libraries while working with Apache Jakarta Tomcat<\/a>. At some point, Tomcat<\/a> started to include a suite of small libraries with commons in the name. They started to show up everywhere, in all sorts of other open-source projects. At first, it was slightly off-putting\u2014what exactly is commons-lang.jar, and why is this tiny library showing up in all of my software?<\/p>\n

Exploring the Jakarta Commons, I first found a broad suite of what I would characterize as “utility” code\u2014things that often wound up in my software in packages named things like “util.” Digging deeper, I found useful libraries to solve common problems, interesting algorithms, and more. In brief, by using the Jakarta Commons, I found I spent less time reinventing the wheel, and more time solving the problem at hand.<\/p>\n

Virtually every Java developer can take advantage of various Jakarta Commons components\u2014from the utilities provided by the Collections and Lang packages, through the networking components afforded by the HttpClient<\/a> and Net packages. These components underlie Apache Tomcat, Struts, and countless other projects, helping move forward both the Java industry and the Java platform.<\/p>\n

The first few chapters cover the more web-specific packages, including FileUpload<\/a>, HttpClient, and the Net suite of protocol implementations. The Pool and DBCP packages are useful for a broader range of applications. BeanUtils and JXPath provide easier ways to work with objects. Logging, Lang, and Collections are a suite of tools applicable to almost every application. Codec provides a suite of specialized conversion routines, useful for data transfer, security, and (interestingly) phonetic analysis. Finally, the CLI package provides support for building command-line applications.<\/p>\n","protected":false},"excerpt":{"rendered":"