This tutorial demonstrates how to retrieve custom application parameters, inject and print the banner, use ConversionService for type conversion, access servlet‑related beans, work with MessageSource for i18n, publish events, and gracefully shut down a SpringBoot 2.7 application.
This tutorial explains how Spring's internationalization (i18n) works, covering core APIs, bean initialization, configuration for both classic Spring and Spring Boot, message resource files, placeholder usage, and convenient accessor utilities, with full code examples for seamless multi‑language support.
SpringBoot supports internationalization out of the box; by creating a messages.properties file under resources, configuring the basename in application.yml, and using a MessageUtils wrapper that retrieves MessageSource via SpringUtils, developers can fetch localized messages with a single method call.
This guide walks through adding Spring Boot i18n support, covering Maven dependencies, project structure, locale resolver and interceptor configuration, message file setup, a utility class, and a sample controller that returns localized responses based on a language query parameter.
