Apr 30, 2026 · Backend Development

Designing Clean Backend APIs: Unified Responses, Validation, and Exception Handling in Spring

The article explains how to refactor Spring controller code by introducing a unified response structure, using ResponseBodyAdvice for automatic wrapping, fixing String conversion issues through message‑converter ordering, applying JSR‑303 validation (including custom validators), and implementing custom exceptions with a global exception handler, resulting in concise, maintainable backend APIs.

Controllerbackendapiexceptionhandling

0 likes · 18 min read

Designing Clean Backend APIs: Unified Responses, Validation, and Exception Handling in Spring

Java Captain

Oct 9, 2020 · Backend Development

Building a Robust Backend API with Spring Boot: Validation, Global Exception Handling, and Unified Response

This article demonstrates how to build a clean Spring Boot backend API by adding the web starter, using Hibernate Validator for parameter checks, handling validation errors with global exception handling, defining custom exceptions, and standardizing responses with a unified ResultVO and response‑code enum.

SpringBootValidatorbackendapi

0 likes · 19 min read

Building a Robust Backend API with Spring Boot: Validation, Global Exception Handling, and Unified Response