Logging in Spring Boot — Spring Technical Interview Questions & Answers

Logback/SLF4J defaults and log level configuration.

Logging in Spring Boot

  • Logging (sb misc) is a Spring topic. In plain words you use it for a short Logging sb misc example in a small REST app. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest Logging sb misc example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Logging (sb misc).
  • From the example next to this theory: Logback/SLF4J defaults and log level configuration.
  • Trap: only saying “Logging sb misc” with no example. Fix that before you talk about advanced Spring.
  • Viva: what is Logging (sb misc)? Then show the smallest Logging sb misc example you can type. Then name the trap.

Technical Interview Tip: What is Logging (sb misc)? Show this: the smallest Logging sb misc example you can type. Trap: only saying “Logging sb misc” with no example.

Code Examples for Logging in Spring Boot

Logging in Spring Boot — working example

// Topic: Logging in Spring Boot
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
class TopicController {
  @GetMapping("/api/topic")
  String topic() {
    return "Spring Boot: Logging in Spring Boot";
  }
}

Logging in Spring Boot: GET /api/topic returns this title string.

How to Explain Logging in Spring Boot to an Interviewer

What is Logging (sb misc)?

Used for a short Logging sb misc example a small REST app Not just the heading

Give one small example of Logging (sb misc).

the smallest Logging sb misc example you can type Logback/SLF4J defaults and log level configuration

What mistake do beginners make with Logging (sb misc)?

only saying “Logging sb misc” with no example Show the fix

Where do you use Logging (sb misc)?

a small REST app a short Logging sb misc example