Are Jsp Still Used?

Servlets and JSPs are considered outdated technologies and no longer chosen for the new projects. These were found in use significantly for legacy projects. Servlet JSPs were used enormously in around 2000.

Do companies still use JSP?

A lot of companies have been switching over and using JS frameworks for web UIs. That said, there are still good uses for JSP and many companies out there still use them. It's just that, for traditional web applications today, most folks see more upsides to using JS frameworks over JSPs.

What is replacing JSP?

In the standard Java EE API, the only alternative to JSP is Facelets. As far now (2010) JSF is the only MVC framework which natively supports Facelets.