1IoC Container & Bean Lifecycle4 2Dependency Injection3 3Bean Types & Stereotypes2 4Web Layer: Controllers & Request Mapping3 5Configuration & Profiles2 6AOP: Aspect-Oriented Programming1 7Caching: Spring Cache & Redis1 8Testing: Unit, Integration, Testcontainers1 9Spring Security: JWT, OAuth2, CSRF/CORS3 10Logging & Monitoring2 11Proxy, @Transactional Pitfalls & Internals2 12Performance & Debugging1 13Advanced: WebFlux, WebSocket, Virtual Threads1

13 topics26 Qs0%

Performance & Debugging

Spring & Spring BootTopic 12 of 131 question

Q1How do you debug a slow Spring Boot app?

Measure first with Actuator and profilers, optimize the real bottleneck (pool, query, cache), and protect the service with timeouts, rate limiting, and horizontal scaling.