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Original Post: Filtering with Java Servlets 2.4
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The Servlet API has long been the cornerstone of enterprise application development, but Servlet filters are a relatively new addition to the J2EE family. In this article, author Kyle Gabhart introduces you to the Servlet filter architecture, defines the many uses of filters, and walks you through the three steps of a typical filter implementation. He also spills the beans on some of the exciting changes you can expect from the just-released Java Servlet 2.4 specification.