You have seen how Spring Boot simplifies Spring application development. But how does Spring Boot make it possible? What is the magic behind it? Spring Boot brings this magic to Spring application development. The following are essential key components of Spring Boot:

• Spring Boot Starters
• Automatic configuration
• Spring Boot CLI 
• Spring Boot Actuator

These four core key components are the reason behind Spring Boot's magic. These components make Spring application development easy. Let's see these components in detail.