Servlet Filter that? Servlet filters are a small Web component, which intercept requests and responses in order to view, extract or in some way it is being exchanged between client and server data. Filter is usually encapsulates some of the features of the Web component, although these features are important, but for dealing with clients who request or sending a response is not decisive. Typical examples include the recording of data on request and response, treatment protocol, session management attributes, and so on. Filter provides a modular, object-oriented mechanism for the public tasks to be inserted into the component package, these components through a configuration file to the statement, and dynamically processing.
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