Tag: unheralded

Java filters, first introduced in the Java Servlet specification 2.3, are a powerful addition to any Java Web application toolkit, yet they probably are the most under-used and under-appreciated of the servlet components. These classes intercept requests coming into and responses coming out of the Java servlet container, allowing developers to inspect and manipulate these messages, as well as take other actions based on the messages’ content. Despite this useful functionality, many Java developers are unfamiliar with filters.