CodeNotes

Jul 16, 2026 · Backend Development

Proper Enum Handling Across Query Params, Request Body, and Database in Spring Boot

The article demonstrates how Spring Boot can automatically convert strings to enums for query and path parameters, introduces a unified StringToEnumConverterFactory, configures Jackson for case‑insensitive enum deserialization in @RequestBody, and uses a JPA AttributeConverter to persist enums, removing repetitive manual conversion code.