Servlet Tutorials

In this tutorial we giving complete material on Servlet. You will learn Servlet in detail through detailed articles and examples.

Servlet Tutorial

In this tutorial we giving complete material on Servlet. You will learn Servlet in detail through detailed articles and examples. This Servlet tutorial is equally import for the beginners and experienced programmers. As a beginner you will find this tutorial a best getting started guide. As a experienced developer you will find the examples and explanation of advanced Servlet. Many examples provided here will be help you in finding the solution of common problem faced while programming in Servlet.

Things to know in advance:

You should have good core java programming language and the basic understanding of the web. It will be even better if are confirmable with the HTML. You should know the basics of HTML, create web pages and use the HTML user input tags.

Software requirements:

Latest version of JDK at least JDK 5 must be installed and configured on your computer. We will be using Tomcat server to run the examples discussed here. So, you should have working knowledge of Tomcat Server. You are free to use other Servlet container such as Jetty, Apache Geronimo, GlassFish, Tiny Java Web Server etc..

Getting Started with Servlet

This Servlet tutorial is also a good starting guide for the beginners. You will learn how to write Servlet, compile, configure on Tomcat, start server and test the Servlet. We will also explain how you can recompile and test the Servlet if there is any error or code modification is needed.

Servlet is used for developing server side programs for a web application based on JAVA. Servlet is based on request response model which can handle any type of request but Servlet also provides Http specific API to handle Http request more efficiently and easily.

Previously CGI was the means of providing dynamic content. CGI was platform dependent and needs to recompile the programs in the new operating system, it is process based. But Servlet is platform independent because of Java's platform independent feature and is thread based. Servlet are more advantageous over CGI in terms of features like Platform Independence, Performance, Extensibility and Security etc.

Servlet runs on JVM on the server and so safe and portable. Servlet do not require java in web browser unlike Applets.

Servlet Container: A Servlet container is software program to load, initialize and execute Servlet.

The life cycle of a Servlet is processed in four steps:

1. Loading and Instantiation
    During startup or when the first request is made, the Servlet container loads the Servlet
2. Initialization
    The Servlet container passes the Servlet initialization parameters to the init() method.
3. Service
    Now Servlet container is ready to provide services of the Servlet so calls the service() method.
4. Destroy
    Servlet container calls the destroy() method to destroy the Servlet if no longer needed.

Let's get Started

Here is the topics in the Servlet Tutorial.

• Introduction to Web Server

• Introduction to Servlet

• Servlet vs. other technologies

• Different between Servlet and CGI

• Introduction to Servlet Container

• Servlet APIs

• Servlet Versions

• Overview of different Servlet versions

• Types of Servlets

• Configuring And Running Servlet Program into tomcat 6

• Servlet Life Cycle

• Configuring Eclipse to Tomcat 6

• Some Basic Servlet Examples

  • Writing a servlet class

  • HelloWorld Example

  • Multiple CheckBox Example

  • RadioButton Example

  • Displaying date Into the Servlet

  • Getting Request from Client

  • Extracting HTML form parameters Example

  • Servlet Life Example

  • GetInitParameterNames

  • Counter In init() method

  • Counter in Init and Destroy method

  • Page Visit Count Example

  • GettingRequestHeader

  • Server Snoop

  • Set Language using Locale

  • UpdatingTime Example

  • Reading Text file in Servlet

  • SetStatus in Servlet

  • Getting Client's Address in Servlet

  • RedirectPage Servlet Example

  • Redirect The Page Randomly

  • ColorSelection

  • RollingDice Example

  • Java Servlet Factorial Program Using Recursion Example

  • Java Servlet Radians to Degrees Example

  • Java Servlet Degrees to Radians Example

  • Servlet File Upload

  • Servlet File Download

  • Servlet Project in Maven

  • Getting all the Header Attributes

  • Servlet Get Client Information

  • Servlet Internationalization

• Servlet Context

  • Introduction to Servlet Context

  • ServletContextExample

  • Adding Parameter to Servlet context

  • Getting Parameter from Servlet Context

  • ContextAttribute in Servlet

  • ServletContextListenerExample

  • Retrieving HTTP request headers

  • Servlet RequestDispatcher

• Using Cookie with Servlet

  • Introduction to Cookie

  • Cookies in Servlet

  • Storing data to Cookie

  • Retrieving data from Cookie

  • Deleting Cookie.

• Servlet Session

  • Introduction to Session Management

  • Creating a Session

  • session id in servlet Example

  • Destroying a Session

  • Session Information

  • Checking the Session Existence

  • Setting Session time out

  • Checking Status of Session

  • GetMaxInterval Session

  • Accessing Time

  • Setting and getting attributes into request

  • Setting and getting attributes from Session

  • Login Logout example

  • Forwarding request from one servlet to other

  • Different between RequestDispatcher() and sendRedirect()

  • URL Rewriting in Servlet

• Servlet Filters

  • Introduction to Servlet filters

  • Advantage of Servlet Filters

  • Configuring filter in web.xml

  • Login filter

  • IP filter

• Servlet Listeners

  • Introduction to Servlet Listener

  • Types of Listener

  • Configuring Listener in web.xml

  • Context Listener Example

  • ServletContextAttributeListenerExample

  • Session Listener Example

• Servlet with Database Basic works

  • Database Connectivity in Servlet

  • Create table using servlet

  • Insert data into table java servlet

  • Prepared statement insert in java

  • Get data from database in servlet

  • Add New Column Into Table using servlet

  • Find column name using servlet

  • Find the number of columns using servlet

  • Delete an existing Column from Table using servlet

  • Find Number of Rows using Servlet

  • Delete Row using Servlet

  • Delete all rows using servlet

  • Servlet delete table

• Servlet with Database advance works

  • Servlet Examples with Mysql SELECT

  • Servlet Examples with Mysql JOIN

  • Servlet Examples with Mysql UNION

  • Servlet Examples with Mysql Aggregate Function

  • Servlet Examples with Mysql ALTER

  • Servlet Examples with Mysql DATE Function

  • Servlet Examples with Mysql String Function

  • Servlet Examples with Mysql Math Function

  • Servlet examples with Mysql Comparison functions and operators

  • INSERT INTO SELECT FROM statement Servlet

  • MySQL CREATE INDEX USING JAVA SERVLET

• Ajax with Servlet

  • Basics of Ajax

  • Access Servlet Using Ajax Request

  • Ajax POST Servlet

  • Ajax GET Servlet

  • Parsing XML file

  • Ajax Servlet Form Submit

  • Ajax Login Servlet

  • Ajax Servlet Filter

  • Ajax Jquery Autocomplete Servlet

  • Ajax Servlet Authentication

  • Ajax Servlet Json

  • Ajax Servlet cross-domain

  • Ajax Servlet Database