Spring Boot 3 Essentials: @Delimiter, Custom Converters, YAML & Filters

This guide walks you through powerful Spring Boot 3 features—including the @Delimiter annotation for automatic collection parsing, custom type converters for @Value, loading YAML files via a FactoryBean, a suite of ordered filters, and using DeferredImportSelector for conditional configuration imports.

Custom ConverterDeferredImportSelectorYAML

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Spring Boot 3 Essentials: @Delimiter, Custom Converters, YAML & Filters

Programmer DD

Jul 31, 2020 · Backend Development

Unveiling the Inner Workings of @EnableAutoConfiguration in Spring Boot

This article dissects the processing flow of Spring Boot's @EnableAutoConfiguration annotation, revealing how AutoConfigurationImportSelector and DeferredImportSelector collaborate to load, filter, and order auto‑configuration classes based on metadata, conditions, and explicit exclusions.

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Unveiling the Inner Workings of @EnableAutoConfiguration in Spring Boot