About the Web Tier Java SDK (back to all tutorials)

This tutorial assumes you've already downloaded and learned to use the Java SDK to invoke the Veriplace API. If so, you've probably found the process of preparing and handling callbacks somewhat cumbersome. The Web Tier SDK simplifies and automates this process for several common web frameworks.

This works by intercepting calls to your web application and enforcing that calls to the Veriplace API (and associated callbacks) have already occurred before reaching your code. In the event of an error, an exception is raised and control is handed off to a configured error handler.

Environment

The Web Tier SDK supports three different environments for web development:

• Java Server Pages (JSP) technology allows simple web applications to be developed using just XML markup.
• Java Servlet technology allows web applications to be written programmatically in Java.
• Spring MVC supports a model-view-control web application architecture on top of the popular Spring Framework.

Dependencies

Different environments have different library dependencies. In addition to the libraries usually required by Java SDK, you are likely to need some or all of the following:

• commons-lang-2.3.jar
• jstl.jar
• standard.jar
• spring-webmvc.jar
• spring-beans.jar
• spring-core.jar
• spring-context.jar
• spring-web.jar