Note: JPE (Java Professional Edition) project announced in May 1998 at Sun Microsystems.
Lets only look at servlet and JSP versions in JEE as it compares to in TOMCAT.
| JEE Version | TOMCAT Version |
|---|---|
| JEE3 implements Servlet 2.3 and JSP 1.2 | Tomcat 4 supports the same (Servlet 2.3 and JSP 1.2) |
| JEE4 implements Servlet 2.4 and JSP 2.0 | Tomcat 5 supports the same |
| JEE5 implements Servlet 2.5, JSP 2.1, JSTL 1.2, JSF 1.2 | Tomcat 6 supports Servlet 2.5, JSP 2.1 only. No JSTL. No JSF |
| JEE6 implements Servlet 3.0, JSP 2.2, EL 2.2, JSTL 1.2, JSF 2.0 |
原文：http://www.cnblogs.com/ivantang/p/6257995.html