Refactor Spring Controllers for Unified Responses and Robust Validation

This article explains how to refactor Spring MVC controllers by introducing a unified response wrapper, handling String conversion issues with ResponseBodyAdvice, configuring message converters, applying JSR‑303 validation, creating custom validators and exceptions, and centralizing error handling for cleaner, more maintainable backend code.

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Refactor Spring Controllers for Unified Responses and Robust Validation

Selected Java Interview Questions

Nov 20, 2024 · Backend Development

Implementing Unified Functionality in Spring with Interceptors, AOP, Exception Handling, and Response Formatting

This article explains how to use Spring's HandlerInterceptor to implement common cross‑cutting concerns such as user login validation, unified exception handling, and standardized JSON response formats, comparing it with Spring AOP and providing step‑by‑step code examples and configuration details.

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Implementing Unified Functionality in Spring with Interceptors, AOP, Exception Handling, and Response Formatting