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Explain Request parameters associated with servlets.

Answer»

There can be any VARIETY of REQUEST parameters related to the SERVLET with every access to it. These parameters are usually [name-value] pairs that give the servlet any further information that it desires so as to handle the request.

An HTTP servlet gets its request parameters as a part of its query string or as encoded post data. A servlet used as a server-side includes its parameters equipped with PARAM tags.

Fortunately, although a servlet will receive parameters in an exceeding variety of various ways, every servlet RETRIEVES its parameters the same way, by using getParameter() and getParameterValues() :

public String ServletRequest.getParameter(String name)public String[] ServletRequest.getParameterValues(String name)


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