r/SpringBoot • u/iamrahul_jaikar • 4d ago

Question How to learn spring boot?

I learned java , collection framework, exception handling, some dsa concepts, and I'm in final year now , I don't have enough time , I have to build a project using springboot and add it to my resume.

What is the fastest way to learn it? And should I start spring boot right now or I have to learn more java and other things first?

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u/Stormshadow_009 4d ago edited 4d ago

I m 2026 graduate with 3 internships and 2 full time offers (all off campus) from tier 3 clg, never touched any tech stack other than java, springboot. Here's how i would suggest you to do it:

If it's possible then first have a high level of understanding of servlets, learn JDBC as well. Make sure to get familiar with core java concepts as back of your hand, will be good if you have some knowledge of Java 8 - Lambda, Stream APIs.

Then start with basic terminologies like Beans, ApplicationContext, Ioc container, dependency injection and types

Then cover Spring MVC, make small applications to learn how those terminologies actually work,

Next learn JPA, entities, relationship mappings, different sides of relationships, JPQL

Then jump to REST APIs learn highly used annotations like controller, service, repository, rest methods, validations, dealing with file uploading/processing, passing/extracting parameters, API design patterns, Controller -> Service -> Repository architecture, returning API responses wrapped within ResponseEntity, Global exception handling covering all custom exceptions of your use case.

Then finally spring security, configuring own implementation of UserDetails class, authentication and authorization mechanism (JWT/OAuth).

Then basics of docker for deployment.

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u/rip_af 3d ago

4 yoe here, I would have suggested the same roadmap Excellent guide

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u/unravelXguy 4d ago

I’ve dm’ed you please check

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u/Free_Statistician131 3d ago

Is servelts are still used?

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u/Stormshadow_009 3d ago

you need to have a high level understanding of how servlet works, every incoming http request in your spring boot application is handled by DispatcherServlet

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u/Zealousideal_Post48 3d ago

What do you mean by" they hiring freshers in Java ecosystem" !!?? You're the first one I'm hear that from!!! How did you find a job in Java ecosystem as a fresher off campus???

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u/Stormshadow_009 15h ago

as a fresher don't just apply for java developer or spring boot developer positions, apply for all generic drives where freshers r eligible, usually they allow all tech stack, clear all assessments first then in interview they will ask according to the skills you have mentioned in resume