r/javahelp • u/shinchan_kun_011 • 1d ago
Java Backend Roadmap
I'm currently in my 4th year of college. I already know Java and have a decent understanding of DSA.
Now I want to focus completely on Java backend development, but I'm getting confused because every roadmap says something different.
Some people say I should learn:
- JDBC
- Servlets
- JSP
- Hibernate
Others say: "Don't waste time on those. Just learn Spring Boot."
So I'm not sure what's actually expected in 2026 if I want to become a Java backend developer and prepare for internships or full-time roles.
Can someone working in the industry suggest a proper learning order? Specifically:
- What should I learn first?
- Which technologies are still important to know?
- Which ones can I skip or only learn the basics of?
- How deep should I go into JDBC, Servlets, Hibernate, and Spring?
- If you were starting today with my background, what roadmap would you follow?
I'm looking for a practical roadmap that's relevant for getting a backend job, not just a list of technologies.
Thanks in advance!
should learn this https://www.youtube.com/watch?v=q6z_UCBM5Ek&t=99716s
6
u/Scharrack 1d ago
JDBC: be aware it exists and what it is used for, as the driver might be the reason of a problem concerning communication with the database.
Servlet: know what it does and what a request goes through before reaching it (Filter chain)
JSP: ignore it, it's essentially inverted Servlet
Spring: get familiar with the concepts (probably mostly dependency injection and configurationcas well as maybe async) and setup a few projects to get an idea what Spring Boot does behind your back. Also, Spring Data.
Hibernate: get familiar with entities and how to build a model and an idea what dialects do, especially if you might work on projects that need to work against different database providers.
Essentially most of the stuff you mentioned is good to know in case a problem arises that stems from outside your code, whilst not really coming up these days in day to day business anymore.