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Java EE servers deploy applications using the EAR (Enterprise Archive) format, which contain one or multiple WAR files, associated EJBs, JSP pages, servlets, and even resource adapters. While this is changing thanks to the concept of profiles in Java 6, this is a slow process. In versions of Java before Java 6, in order to call itself a Java EE Application Server, a server must implement all aspects of the Java EE platform. These features extend the standard Java platform for use in internet-based business transactions, and include things such as JTA, EJBs, JMS, JSF, and Java EE APIs for session persistence, dependency injection, and more. What is a Java EE application serverįrom a technical Java perspective, a Java Application Server is any implementation of the Java EE Application Server specification that fully complies with and supports all Java EE features. Let's take a moment to define those terms from a rigid technical perspective before we look at how their definitions are shifting. Websphere - What is an application server?Īt one time, it would have been easy to describe the difference between Websphere and Tomcat by saying that Websphere was an application server, whereas Tomcat was just a servlet container. Will using Tomcat over Websphere save me money in the long run?.When I'm planning my architecture, what's the best way to balance complexity, simplicity, flexibility, and performance?.
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I know Websphere is a Java EE application server.
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The Tomcat versus Websphere conversation can get longwinded, but much of the discussion can be boiled down to a few central questions: This can confuse people who are looking for a clear, balanced analysis. When it comes to architecture decisions, there's plenty of opinion to go around. While Tomcat has remained a lightweight, open-source servlet container, Websphere has become a large stack-based application server, one part of a larger group of interoperating IBM products under the same brand, including IDEs, portal services, data integration engines and more. Originally developed and released around the same time in the late 1990s, and originating from the same Java Servlet specification, Apache Tomcat and Websphere Application Server, or WAS, have grown in two entirely different directions. In this article, we'll take at some of the places where the functionalities of these two application servers overlap, as well as some ways in which they are different, to help you decide which is the best choice for your scenario. This will allow you to use the Apache HTTP server to serve regular static webpages, and the Tomcat Servlet engine to execute servlets.Apache Tomcat and IBM Websphere application server are two vastly different products that nevertheless often come up in the same conversations. The two technologies can be used together through a connector module called mod_jk. (Also, Tomcat is allegedly slower than Apache httpd when it comes to serving static pages.) Tomcat can also be used as a regular HTTP server that serves static pages, but that is not its primary purpose. It’s primary purpose is to implement the Java Servlet API and execute Java servlets for the purpose of building dynamic websites. Tomcat, on the other hand, is specifically designed from the ground-up to serve as a Java Servlet engine. There are plenty of modules which can be installed to enhance Apache’s abilities so that it can serve dynamic webpages using various technologies such as PHP, CGI or whatever, but the core of Apache is just a plain old HTTP server. In general, the Apache HTTP server is just a plain old web server designed to serve static web pages. class files by the server and executed by the Java virtual machine.
#Apache tomcat vs apache web server code
JSP files (which are similar to PHP, and older ASP files) are generated into Java code (HttpServlet), which is then compiled to. Tomcat is a Servlet and JSP Server serving Java technologies. So basically Apache is an HTTP Server, serving HTTP. So in your Java project you can build your WAR (short for Web ARchive) file, and just drop it in the deploy directory in Tomcat. Apache Tomcat is used to deploy your Java Servlets and JSPs.