Next, we configure the WEB-INF/web.xml file, here servlet-name is self-explanatory, servlet-class defined the type of the servlet, inside the servlet-mapping tag, we define the url-pattern in which this servlet will be available:

Open Intellij IDEA => Choose Create New Project => Choose Java Enterprise on the side bar: However, in the scope of this article, we are only interested in working with Servlet. Thanks to Coyote, you can run Tomcat other of Java enterprise specifications. It provides you the actual implementation for Tomcat’s servlet specification, when you start running Tomcat, you’re usually run start Catalina.Īpache Tomcat doesn’t limit itself just as a Servlet container, it also contains an engine called Coyote, which is a web server. Tomcat itself is a sophisticated and complicated piece of software that is composed of many components, however, at its core, there is a component named Catalina which acts as a Servlet container. It’s also can be called a web server or a web container. However, if you have no idea about what is Tomcat, then it’s essential for us to find out what is Tomcat and why we need them.Īpache Tomcat is an open-source Servlet container that implements several enterprise specifications such as Servlet, JSP, Expression Language, and WebSocket APIs.

You can live blissfully without going through this session and still can configure the Tomcat server. Last but not least, the Java EE specification is also a requisite to run our application. You will also need to install the Tomcat server before we proceed any further, in this tutorial I use Tomcat server version 8, but of course, you can choose a different version if you want. IntelliJ IDEA Ultimate is required for run enterprise application such as a web application run on Tomcat. But I promise that if you stick with it and follow along step by step it will get easier and you will know enough to configure Tomcat to run most web applications.įirst, there are 3 prerequisites that you need in your computer first before we’re moving on:

There are a lot of new terms and tools to learn, and that can be daunting.

This whole process might seem confusing and complicated at first. In this article, we are going to learn how to configure the Tomcat server to run a simple “Hello World” application on the web browser with JSP and Servlet (i.e Hello World with the web edition 🙂 ).

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