Community driven content discussing all aspects of software development from DevOps to design patterns. Apache Maven is a Java build tool and dependency management engine that simplifies the ...

Developers in search of a Java application server have no shortage of options to consider. But before any enterprise selects and ultimately adopts a Java application server for development and ...

Apache Clickは、 Java EEを用いたWebアプリケーションを素早く簡潔に開発できるようにする軽量フレームワークです。Apache Clickでは、 JSP （JavaServer Pages） やMVC （Model-View-Control） フレームワークを用いることなく、 HTMLテンプレートと POJO （Plain Old Java Object ...

XML-Signature Syntax and Processing XML Encryption Syntax and Processing. This repository contains the Apache XML Security for Java subproject of Apache Santuario. This library includes the standard ...

A Java library for reading and writing Microsoft Office binary and OOXML file formats. The Apache POI Project's mission is to create and maintain Java APIs for manipulating various file formats based ...

Like other Java enterprise tools, Tomcat has migrated from the original Java EE specification to Jakarta EE. Tomcat 9 and earlier were based on Java EE; Tomcat 10 and later are based on Jakarta EE.

Javaを使って帳票（レポートや請求書など）をExcel形式で自動生成したいというニーズは、業務システムの現場で非常に多く見られます。本記事では、Javaライブラリ「Apache POI」を使って、Excel（.xlsx）帳票を作成する方法を詳しく解説します。 Excelファイルの ...