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How to Migrate an JSP-Eclipse application to lightweight Ajax
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04/22/2006 By Sing Li
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This tutorial shows you how to move an application from a conventional JSP, Eclipse design to one based on Ajax (Asynchronous JavaScript and XML) technology. It will guide you through the development of a small human-resources application, first using conventional JavaServer Pages (JSP) and Eclipse, and then migrating it to a highly interactive solution using Ajax.
In this tutorial, you'll create an employee-information panel using standard JSP and servlet technology. You'll do all development and testing using the Kick-start your Java apps suite, design the application in Eclipse, and then deploy and test it on Application Server. The application interactively fetches and displays employee information, including a photo, from a DB2 Express-C database.
The tutorial guides you through:
Developing an employee-information panel using conventional JSP and servlet technologies
Handling display of GIF photos from DB2 binary large object (BLOB) fields using a custom servlet
Introduction to Ajax and Direct Web Remoting
Migrating the employee-information panel to a lightweight Ajax design
Coding the Java-side support code for the new application
JavaScript coding using the DWR utilities library
Testing the new interactive employee-information panel
By the end of the tutorial, you'll appreciate some of the fundamental differences between conventional J2EE application design and the highly interactive Ajax-based approach. You'll also become comfortable with using the Kick-start your Java apps suite to explore present and future Java-based development frameworks.
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