Question

How do I map a url to a HttpServlet class in tomcat.

Example I want requests /calc to be handled by Calc.java

so a request to 127.0.0.1:800/calc would call:

public class Calc extends HttpServlet {
    /* ... */
}

Answer 1

If you’re on tomcat7 it’s as easy as adding the annotation:

@WebServlet(urlPatterns="/calc")
public class Calc extends HttpServlet {
    /* ... */
}