What is the difference between Tomcat and TomEE, TomEE and TomEE Plus

Question

I want to deploy EJB ear in a server but I am really confused about choosing a server among tomcat, TomEE and TomEE Plus.

1. Wh

Answer 1

Apache Tomcat is a Java servlet container which implements the following specifications:

1. Java Servlet Specification
2. Java ServerPages (JSP)
3. Expression Language (EL)
4. WebSocket

The version of Tomcat you choose will dictate the versions of the above specifications that are supported.

Apache TomEE is a Java EE Web Profile-certified stack which is built on top of an Apache Tomcat base integrated with additional related technologies. It adds implementations for the following specifications (using the Apache project shown in parentheses):

1. CDI - Apache OpenWebBeans
2. EJB - Apache OpenEJB
3. JPA - Apache OpenJPA
4. JSF - Apache MyFaces
5. JSP - Apache Tomcat
6. JSTL - Apache Tomcat
7. JTA - Apache Geronimo Transaction
8. Servlet - Apache Tomcat
9. Javamail - Apache Geronimo JavaMail
10. Bean Validation - Apache BVal

Apache TomEE+ adds:

1. JAX-RS - Apache CXF
2. JAX-WS - Apache CXF
3. JMS - Apache ActiveMQ
4. Connector - Apache Geronimo Connector

Note that all of this was available from some obvious places on these Apache web sites:

• Apache TomEE
• Apache Tomcat

If I understand correctly, the whole EAR thing has been abandoned in favor of good-old WAR files. But, if you have to deploy an EAR file, you are more than likely going to require Apache TomEE. Apache Tomcat certainly doesn't know what the heck to do with an EAR file.