Welcome To Servlets

Course overview

Uplatz offers this comprehensive bundle course on Java consisting of a combo of video courses on all topics that are associated with Java (Core Java, JSP, Java Servlets). You will be awarded Course Completion Certificate at the end of the course.

Uplatz provides this comprehensive training on Java with a combo of courses included together in this bundle course. This is self-paced training in the form of pre-recorded videos.

The courses included in the Java bundle course are:

1. Java Programming
2. Java Server Pages (JSP)
3. Java Servlets

Java is one of the most used and most popular programming languages in the world of IT development. Given its properties of platform independence, object-oriented approach, reusable code and dynamic classes, Java has emerged to be the most preferred language for programmers. It is quite easy to learn and implement, thus making it highly favorable in the programming community. Its popularity also stems from the fact that it was built keeping security in mind, and enables programmers to write code with fewer bugs, in lesser time.

As Java is secure and multi-threaded, it is perfect for Banking and transaction management services. E-commerce shops and billing software have their logic written in frameworks based on Core Java. Mobile OS like Android uses Java APIs. Stock market algorithms are based out of Java. Java along with other frameworks like Spring makes for a robust combination to sort implementation dependencies and write server-side applications in Finance and IT domains.

Java is fast, reliable and secure. From desktop to web applications, scientific supercomputers to gaming consoles, cell phones to the Internet, Java is used in every nook and corner. Java is a very successful language and it has gained huge popularity.

Java Server Pages (JSP) is a server-side programming technology that enables the creation of dynamic, platform-independent method for building Web-based applications. JSP have access to the entire family of Java APIs, including the JDBC API to access enterprise databases. This tutorial will teach you how to use Java Server Pages to develop your web applications in simple and easy steps.

Applications of JSP

As mentioned before, JSP is one of the most widely used language over the web. I'm going to list few of them here:

JSP vs. Active Server Pages (ASP)

The advantages of JSP are twofold. First, the dynamic part is written in Java, not Visual Basic or other MS specific language, so it is more powerful and easier to use. Second, it is portable to other operating systems and non-Microsoft Web servers.

JSP vs. Pure Servlets

It is more convenient to write (and to modify!) regular HTML than to have plenty of println statements that generate the HTML.

JSP vs. JavaScript

JavaScript can generate HTML dynamically on the client but can hardly interact with the web server to perform complex tasks like database access and image processing etc.

JSP vs. Static HTML

Regular HTML, of course, cannot contain dynamic information.

Java Servlet technology is used to create a web application (resides at server side and generates a dynamic web page).

Servlet technology is robust and scalable because of java language. Before Servlet, CGI (Common Gateway Interface) scripting language was common as a server-side programming language. However, there were many disadvantages to this technology. We have discussed these disadvantages below.

There are many interfaces and classes in the Servlet API such as Servlet, GenericServlet, HttpServlet, ServletRequest, ServletResponse, etc.

Properties of Servlets:

• Servlets work on the server-side.
• Servlets are capable of handling complex requests obtained from web server.

Web application development can be made easier by using Java servlets. In the Java Servlet topic viz. Java EE: Programming Servlets, you will begin with a complete overview of servlet architecture and lifecycle. First, you'll see the configuration of a Tomcat webserver in Eclipse and you'll learn how to read the request and response headers. Next, you'll learn how filters are applied to servlets and see many details about tracking session data, web annotations, and globalizing servlets. Finally, you'll go over asynchronous programming in servlets, debugging, packing, and deployment of servlets. By the end of this course, you will have a much more complete understanding of how web development using Java servlets works. Software required: Tomcat and Eclipse.

Java servlets are the first step to understanding web programming using Java, and this course will show you the basics of servlet architecture and applying filters to more complex issues like debugging and deployment.