how to get the base url from jsp request object?

Question

How to get the base url from the jsp request object? http://localhost:8080/SOMETHING/index.jsp, but I want the part till index.jsp, how is it possible in jsp?

Answer 1

JSP variant of Bozho's answer:

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>