You map a servlet or a JSP page to a URL pattern in order to determine how users of the Web application access them. You do this using the <servlet-mapping> group of tags of the web.xml deployment descriptor.
On the web.xml screen, proceed as follows:
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1. Choose the Mapping tab.
2. To map a servlet or JSP to a URL pattern, choose Add from the Servlet mapping pane.
3. Choose the appropriate Web component from the list that appears on the Choose Servlet screen.
4. Enter the URL pattern in the corresponding field under the URL Pattern column.