servlet has not any main method in it how does it work by
JVM?
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Answer Posted / nishita
The request mapping is done in web.xml which maps URL to
the Servlet which should handle the request. When the user
hits the URL on the browser, the request is redirected to
Webserver from the code. The Web container decides which
Servlet to call based on the mapping in Web.xml. This
servlet (if it was not loaded at server startup) will first
get loaded then, it gets instantiated and then its init()
method is called. This is called only once. The
initialization happens here. After that the servlet is
ready for service, service() method is called. The service
() method can be called any number of times. Hence, without
a main method the servlet is called.
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