Spring @ComponentScan Fundamentals

Managing component discovery in Spring can become complex as your codebase grows across multiple packages and modules. This course provides a clear, step-by-step guide to how Spring searches for, detects, and registers beans automatically. You will start with the absolute fundamentals of dependency injection, learn core annotations like @Component, and master the configuration of @ComponentScan to control exactly which classes are managed by the Spring container. What you will learn: Understand the core mechanisms of the Spring IoC container and bean lifecycle; Configure @ComponentScan with custom base packages and base package classes; Apply include and exclude filters to fine-tune bean registration; Resolve common dependency injection issues and component scanning conflicts; Implement modern Spring Boot configuration patterns without XML. Through clear written explanations and practical code examples, you will progress from basic bean registration to advanced filtering strategies. This course is designed for beginner Java developers who are new to Spring and want to build a solid foundation in modern configuration practices. Step into structured Spring development today.