Servlets/JSP in the past?

Question

Java

Hi everybody.
Tell me please, how is the situation with such technologies as servlets \ jsp in our time?
Do you use these technologies at work? If you do, what problems do you solve with them?

It will be a pole:
1. If someone has bookmarked a link to a good resource (the main thing is that it would not be hello world) for learning servlets \ jsp or just have some good advice - it will be just great.
2. Another such topic, I saw a lot of examples of servlets + jsp on the Internet and thought about the fact that if you replace jsp with html + js, that is, for example, make http requests to a servlet using js.

Answer 1

No, not in the past. If you want a well-indexed site, then JSP is in your hands. Pure servlets are rarer than spring controllers. HTML / JS + requests to the servlet work well on admins, again, indexing by robots.

Answer 2

Either there is a problem with your DNS server or your ISP is blocking npmjs.org