Servlets in java tutorial pdf

Notify me of follow-up comments by email. Notify me of new posts by email. This site uses Akismet to reduce spam. Learn how your comment data is processed. Programmer Books. Software Development Java Language. Java Servlet Programming. Java EE 7 Developer Handbook. Java SOA Cookbook. Java Deep Learning Essentials. Maven Build Customization. Please enter your comment! Please enter your name here. You have entered an incorrect email address! Servlet technology is robust and scalable because of java language.

However, there were many disadvantages to this technology. We have discussed these disadvantages below. This Java tutorial describes the steps to write code for a Java servlet that transfers a file from the server to the client web browser. The user can download the file by clicking on a hyperlink which points to the servlet URL. This would be useful for implementing file download functionality in your web application using Java servlet.

A web application is an application accessible from the web. CGI technology enables the web server to call an external program and pass HTTP request information to the external program to process the request.

For each request, it starts a new process. There are many advantages of Servlet over CGI. The web container creates threads for handling the multiple requests to the Servlet. Threads have many benefits over the Processes such as they share a common memory area, lightweight, cost of communication between the threads are low. The advantages of Servlet are as follows:.

What is a Servlet? Servlet can be described in many ways, depending on the context. Servlet is a technology which is used to create a web application. Servlet is an API that provides many interfaces and classes including documentation. Servlet is an interface that must be implemented for creating any Servlet. Servlet is a class that extends the capabilities of the servers and responds to the incoming requests. It can respond to any requests. Servlet is a web component that is deployed on the server to create a dynamic web page.

Additional Sources The specification is intended to be a complete and clear explanation of Java Servlets, but if questions remain, the following sources may be consulted.