A URL pattern is a set of ordered characters to which the Google Search Appliance matches actual URLs that the crawler discovers. You can specify URL patterns for which your index should include matching URLs and URL patterns for which your index should exclude matching URLs.

What is servlet name and URL pattern in Web XML?

Servlets and URL Paths xml defines mappings between URL paths and the servlets that handle requests with those paths. The web server uses this configuration to identify the servlet to handle a given request and call the class method that corresponds to the request method (e.g. the doGet() method for HTTP GET requests).

What is use of URL pattern tag in servlet XML file?

url-pattern specifies the type of urls for which, the servlet given in servlet-name should be called. Be aware that, the container will use case-sensitive for string comparisons for servlet matching.