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Java Academy · Lesson

Error Handling & Advice

Learn error handling patterns and use @ControllerAdvice in Spring Boot.

Intro

Error handling improves user experience. Instead of raw stack traces, return meaningful messages.

Code: Custom exception

Create a custom exception for missing resources.

public class UserNotFoundException extends RuntimeException {
  public UserNotFoundException(Long id) {
    super("User not found with id " + id);
  }
}

All lessons in this course

  1. JPA/H2 & Repositories
  2. CRUD Service Layers
  3. Error Handling & Advice
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