Most Popular Scripts | Java | Tutorials & Tips | JSP & Servlets

Learn how JSP technology and LaTeX help online science education and research. JSP pages and custom tags can get LaTeX-formatted formulae onto the Web in a fashion that is easy for the author and doesn't require any special client-side software. Through increasingly efficient methods, you'll see how server-side Java technology can harness the power of disparate third-party tools to solve seemingly intractable problems.

This article shows you how to customize JSP tags to get even more out of JSP technology. Its detailed techniques explain how you can add more complex logic to your JSPs, take firmer control of data display, and share data among tags. All without having to teach your front-end Web developers how to write Java code.

This article describes what are application events and how you can use them. Focuses on two important web application events; Application startup and shutdown, Session creation and invalidation.

Why invent the wheel every time you develop an application in Java? Writing a J2EE web application is complicated enough; you would not write a linked list module in C++ every time you started a new project. You would rather use another person's implementation. The same reuse-idea surely applies to server-side web development. This article looks at the best practices of using one popular web application toolkit, Expresso Framework. The idea of using custom tags, JSP, and the MVC paradigm are suitable for such frameworks. It will illustrate the best of practice through an on-line stock trading program example.

Tags are reusable code libraries and allow easier separation of HTML and Java code. This tutorial first introduces JSP custom tags and then moves forward to build a simple JSP tag. Every step has been explained in detail. Online demo available.

This tutorial is second in a series of tutorials about JSP tags. In this tutorial we will learn what are scripting variables in JSP tags and how to make use of them. Online demo available.

The corporate firewall is a double-edged sword. It helps prevent unauthorized access to the corporate Web services, but can disable access for legitimate clients. Due to the number of safety measures taken by system administrators, HTTP has become the universal entry mechanism to the corporate network. Where technologies such as CORBA and DCOM have failed because of the firewall, technologies such as SOAP have been developed to provide safe and reliable access through firewall protection. This article explores an alternative to SOAP, the use of Java objects over HTTP. In addition, it uses J2EE servlet technology as server-side middleware to the business data.

This article discusses the anatomy of a JSP page. Discusses all the directives, scripting elements, actions and JSP tags which form part of the JSP page. This article provides good foundation for studying advanced JSP topics.

An article on updating records in the database using JDBC with Java Servlets. Every step from establishing a Connection to executing the UPDATE query is explained in detail. Online demo available.

This article describes how to forward response from one Servlet to another and how to include response from the other Servlet. Discusses RequestDispatcher interface. Online demo available.

One of the most exciting features of the new Java Servlet 2.3 specification is filtering. At first sight, Servlet 2.3 filtering is deceptively similar to existing legacy filters in Apache, IIS, Netscape Web servers and others. In reality, Servlet 2.3 filtering is a completely different design architecturally -- leveraging the object-oriented nature of the Java platform to provide a new level of performance. This article introduces you to filtering in Tomcat 4 and shows you how to make productive use of filters in your projects.

A brief introduction to writing your own first Java Server Pages (JSP). Covers several different editions of "Hello, World!" example. This article is the first excerpt of a full series from the book, Web Development with JavaServer Pages.

There are two primary types of tag conventions in Java Server Pages: Scripting-Oriented Tags and XML-Based Tags. Learning them gives you insight not only into JSP, but XML, too. This article is the second excerpt in a series from the book, "Web Development with JavaServer Pages."

This article describes the overall servlet architecture and what you need to develop your application with servlets. Also presented are several code examples to show you how to use the Servlet API, and compare it with CGI and proprietary server APIs where appropriate.

The author notes "This document explains the concepts of Java Servlets and provides a step-by-step tutorial for writing HTTP Servlets with complete source code for the example Servlets. The tutorial and the other chapters cover all facets of Servlet programming from a simple "Hello World" Servlet to advanced Servlet features like session tracking and Cookies. There are also appendices on compiling and running Servlets. The reader is assumed to have some basic knowledge of HTML and Java programming."

This article describes advantages and disadvantages of Servlets vs CGI, How a Servlet works, and Where a Servlet can be used for.

Written primarily for those currently developing on the server in JavaScript, this article explains the basics of working with Java on the server through Sun's Java Servlet API. It includes a brief overview of servlets and their role in server-side software development, and Comparison of JavaScript applications with servlets in a number of crucial areas of program design.

In this 5-page tutorial, you'll learn how to write, compile, and serve a simple servlet. Also, includes other servlet-related resources.

Window toolkits typically provide a layout mechanism that positions widgets in a container. For example, AWT and Swing have layout managers, and VisualWorks Smalltalk has wrappers. This article presents a template mechanism for JSP that allows layout to be encapsulated and reused. JSP templates minimize the impact of layout changes and encourage modular design.

JavaServer Pages (JSP) are a great mechanism for delivering dynamic Web-based content. JSP provides a set of predefined tags, but you can also define your own tag extensions that encapsulate common functionality. This article will show how easy it is to build, deploy, and use your own custom JSP tag, using the Servlet/JSP reference implementation, Tomcat.