What is Servlet?

Servlet is part of the J2EE standard and is basically a packaging and interfacing structure for putting applications into a server.  It means (theoretically) that you can take your servlet that you have build and put it into a range of different J2EE "servlet containers" and the servlet will run.  Here are some servlet containers;

• Tomcat
• Jetty
• WebSphere
• WebLogic

There are some existing notes that I have written on building WebObjects applications as servlets and how to deploy this into Tomcat.