How to Standardize Error Responses with Problem Details (RFC 9457) in Spring Boot 3.x
Learn how to unify error responses with Problem Details (RFC 9457), natively supported in Spring Boot 3.x. This guide covers the spring.mvc.problemdetails.enabled setting, how to use the ProblemDetail class and ErrorResponse, integration with @ControllerAdvice and ResponseEntityExceptionHandler, migration steps from Spring Boot 2.x, and application to Spring Security and validation errors, all with code examples.