Graceful Response: Unified Response Wrapping and Exception Handling for Spring Boot

Graceful Response is a component built on the Spring Boot stack that provides a one‑stop solution for unified response wrapping, global exception handling, and custom error codes, helping developers write cleaner controller code and improve efficiency.

The article first lists compatible Spring Boot versions and Graceful Response versions, then explains common problems in typical Spring Boot controller code such as low efficiency, repetitive boilerplate, and poor readability.

It shows a typical pseudo‑controller method that manually validates parameters, calls a service, and wraps results, highlighting the redundant try‑catch and response construction.

By introducing Graceful Response, developers can simply return the business object; the component automatically wraps it into a standard JSON structure. The Maven dependency is provided, and the component is enabled with the @EnableGracefulResponse annotation.

Examples include a minimal controller method returning UserInfoView, a void command method, and service methods that throw custom exceptions annotated with @ExceptionMapper to map to specific error codes.

The article also demonstrates how to use @ValidationStatusCode to bind JSR‑303 validation failures to custom response codes, and how to configure response styles via graceful-response.response-style.

Additional advanced features such as integration with Swagger, custom response formats, exception aliasing, and common configuration items are listed, and the project’s GitHub repository is linked.