Apache Tomcat

Definition of Apache Tomcat

Apache Tomcat is an open-source web server and servlet container developed by the Apache Software Foundation. It is designed to serve Java-based web applications by implementing the Java Servlet and JavaServer Pages (JSP) technologies. Tomcat enables the execution of Java code, providing a dynamic and flexible web application environment for developers.


The phonetics of “Apache Tomcat” can be represented as follows in the International Phonetic Alphabet (IPA):əˈpætʃi ˈtɒm.kæt

Key Takeaways

  1. Apache Tomcat is an open-source Java-enabled web server and servlet container created by the Apache Software Foundation, allowing the deployment and management of Java-based web applications.
  2. Tomcat supports multiple technologies such as JavaServer Pages (JSP), Java Servlets, WebSocket, and Java EL, providing a versatile environment for developers while ensuring high performance and security for applications.
  3. Apache Tomcat offers an easy-to-use administration and configuration interface, making it suitable for developers and system administrators to deploy, maintain, and manage their Java-based applications efficiently.

Importance of Apache Tomcat

Apache Tomcat is important because it is a widely-used, open-source web server and servlet container developed by the Apache Software Foundation.

It provides a reliable and efficient platform for running Java-based web applications, which are crucial components of modern web services.

As it supports Java Servlet, JavaServer Pages (JSP), Java WebSocket, and Java Expression Language, Apache Tomcat enables developers to create scalable and dynamic web applications, making it a popular choice for significant business and enterprise solutions.

Moreover, its open-source nature allows for constant improvements, adaptability, and efficient use of system resources while fostering developer collaboration and knowledge sharing.


Apache Tomcat, often simply referred to as “Tomcat,” is an open-source web server and servlet container designed to serve Java applications. As a critical component in the Java Enterprise Edition (Java EE) technology stack, its primary purpose is to execute Java-based web applications and render web pages that contain dynamic content.

Tomcat achieves this by interpreting and executing Java Servlets, JavaServer Pages (JSP), and WebSocket applications within an efficient, secure, and highly scalable environment. Developed and maintained by the Apache Software Foundation, Tomcat provides developers and system administrators with a powerful tool for deploying and managing web applications with ease.

As a lightweight, flexible, and highly configurable server, Tomcat is well-suited to both development and production environments. Its ability to support concurrent processing of multiple requests makes it an ideal choice for hosting high-performance, data-driven applications.

Additionally, Tomcat’s open-source nature and vast community support make it a popular choice among developers looking for a cost-effective, reliable platform to build and deploy Java-based web applications.

Examples of Apache Tomcat

Apache Tomcat is an open-source web server and servlet container that is used to serve Java-based applications. Here are three real-world examples of companies and organizations utilizing Apache Tomcat for their technology needs:

Walmart:Walmart, which is one of the largest multinational retail corporations in the world, uses Apache Tomcat to serve its e-commerce platform. The corporation has implemented Apache Tomcat for their online stores to ensure that their Java web applications can handle a high volume of traffic and provide a seamless shopping experience to their customers.

CERN (The European Organization for Nuclear Research):CERN, known for its Large Hadron Collider (LHC) and groundbreaking research in particle physics, extensively uses the Apache Tomcat web server to develop and deploy their Java-based web applications. Tomcat helps CERN provide secure access to management and control systems, collaboration tools, and data sharing platforms that facilitate scientific research among its community of scientists and engineers.

Rakuten:Rakuten, a Japanese electronic commerce and internet company with a diverse portfolio of businesses, utilizes Apache Tomcat to support their various web services and applications. With the aid of Apache Tomcat, Rakuten’s Java-based applications can scale up to accommodate their expanding user base and ever-growing demand for online shopping, digital content, and communication services.

Apache Tomcat FAQ

1. What is Apache Tomcat?

Apache Tomcat is an open-source web server and servlet container developed by the Apache Software Foundation. It provides a platform to run Java-based web applications and supports various Java-based technologies such as Java Servlet, JavaServer Pages (JSP), Expression Language, and WebSocket.

2. What are the key features of Apache Tomcat?

Some of the key features of Apache Tomcat include lightweight architecture, Web application deployment, high-performance Java web application server, comprehensive documentation, and support for various Java-based web technologies.

3. How do I install Apache Tomcat?

To install Apache Tomcat, you first need to download the Tomcat Binary Distribution from the official website. Then, extract the archive and follow the platform-specific guidelines provided in the documentation that comes with your downloaded version.

4. How do I deploy a web application in Apache Tomcat?

To deploy a web application in Apache Tomcat, save your Java-based web application folder in the “webapps” directory of your Tomcat installation. Then, start Tomcat, and the application will be automatically deployed and accessible via the defined context-path.

5. What is the difference between Apache Tomcat and Apache HTTP Server?

Apache Tomcat is a Java-based web server and servlet container designed for running Java web applications, whereas Apache HTTP Server is a general-purpose web server for serving static and dynamic web pages in various server-side scripting languages like PHP, Perl, and Python. Apache Tomcat is focused on Java technologies, while Apache HTTP Server is suitable for serving web applications developed in various languages.

6. How do I configure SSL/TLS on Apache Tomcat?

To configure SSL/TLS on Apache Tomcat, you need to create a keystore, generate a certificate, configure the certificate in the Tomcat’s server.xml file, and enable the SSL/TLS connector. The official Tomcat documentation provides detailed steps on how to set up SSL/TLS for Tomcat.

7. How do I secure my Apache Tomcat installation?

Some steps to improve the security of your Apache Tomcat installation include updating to the latest version, removing unused components, restricting the access to the Tomcat Manager, using strong passwords, configuring Tomcat behind a reverse proxy, and implementing SSL/TLS connections.

8. How do I troubleshoot issues in Apache Tomcat?

To troubleshoot issues in Apache Tomcat, you can start by consulting various log files such as “catalina.out” or your application’s log files. These log files will provide information on the error messages and warnings. You can also review Tomcat’s configuration files, check the Java version being used, and examine the operating system settings and resources.

Related Technology Terms

  • Java Servlet Container
  • JavaServer Pages (JSP)
  • Apache Software Foundation
  • Web Application Deployment
  • Tomcat Manager Application

Sources for More Information


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