What are the difference between the Web Containers and Application Server?

The main difference between the web containers and application server is that most web containers such as Apache Tomcat implements only basic JSR like Servlet, JSP, JSTL whereas Application servers implements the entire Java EE Specification. Every application server contains web container.

Typically, a Web server refers to an execution infrastructure that handles. HTTP requests and responses; a servlet container refers to a component that. handles the lifecycle for servlets; an application server refers to a. framework (servlet container, EJB container, JSP engine, MQ container, etc.)