Apache Tomcat
Apache Tomcat is an open-source web server and servlet container that implements Java Servlet, JavaServer Pages (JSP), Java Expression Language, and WebSocket technologies. It provides a pure Java HTTP web server environment for running Java-based web applications, commonly used to deploy and manage Java EE (now Jakarta EE) applications. Tomcat is lightweight, efficient, and widely adopted in production environments for hosting dynamic web content.
Developers should learn Apache Tomcat when building and deploying Java-based web applications, especially those using servlets, JSP, or Jakarta EE standards, as it offers a robust, standards-compliant runtime environment. It is ideal for use cases such as enterprise web applications, e-commerce platforms, and internal tools where Java's scalability and cross-platform compatibility are required. Tomcat's simplicity and performance make it a go-to choice for many Java web projects, from small-scale deployments to large enterprise systems.