Truly master
Spring
Real-world scenarios, clear explanations, and actual interview and production pitfalls to level up efficiently.
Get started with @Transactional →@Service
public class OrderService {
@Transactional
public void placeOrder(Order order) {
orderRepository.save(order);
// ...
}
}but is it really?
SPRING TOPICS
Explore key Spring topics
Interactive mini-challenges to understand how Spring actually behaves.
Transactions
with @Transactional
Self-invocation, rollback, propagation, read-only transactions… 5 real-world scenarios to understand how it actually works.
Bean injection
and management
Bean lifecycle, scopes, dependency injection, configuration…
Configuration
and profiles
@Configuration, @Value, profiles, external properties, and differences across environments.
Validation and
error handling
@Valid, constraints, global exception handling, HTTP errors…
Async and concurrency
@Async, thread management, background execution, and key limitations you need to know.
240+ questions to ace
your Java and Spring interviews
Take it further with the DevUpNow app. Practice Java, Spring, JPA, and PostgreSQL with detailed explanations.
already leveling up!