What is a servlet VS server?

What is a servlet VS server?

In Layman terms : A web Server means: Handling HTTP requests (usually from browsers). A Servlet Container (e.g. Tomcat) means: It can handle servlets & JSP. An Application Server (e.g. GlassFish) means: *It can manage Java EE applications (usually both servlet/JSP and EJBs).

What is the difference between servlet and Web service?

Servlets are API which is simple and provides capabilities to write server side components. Web Service uses ServletContainer class which is again a Servlet class, which handles the request in clean and structured way. The REST stands for REpresentational STateless Protocol. Here the request won’t store any data.

What is difference between web server and web container?

The Web container provides the runtime environment through components that provide naming context and life cycle management. Some Web servers may also provide additional services such as security and concurrency control. A Web server may work with an EJB server to provide some of those services.

What is the difference between web container and Servlet Container?

Web containers are a part of a web server and they generally processes the user request and send a static response. Servlet containers are the one where JSP created components reside. They are basically responsible to provide dynamic content as per the user request.

What is the use of Servlet container?

The servlet container calls servlet methods and provides services that the servlet needs while executing. A servlet container is usually written in Java and is either part of a Web server (if the Web server is also written in Java) or is otherwise associated with and used by a Web server.

What are the types of servlet?

There are two main servlet types, generic and HTTP:

• Generic servlets. Extend javax. servlet. GenericServlet. Are protocol independent.
• HTTP servlets. Extend javax. servlet. HttpServlet. Have built-in HTTP protocol support and are more useful in a Sun Java System Web Server environment.

How do you map a servlet?

To map a URL to a servlet, you declare the servlet with the <servlet> element, then define a mapping from a URL path to a servlet declaration with the <servlet-mapping> element.