What is the main role and advantages of using Spring Boot in Java application development?

Spring Boot simplifies Java application development through auto-configuration and an embedded server. Main advantages:

• Quick start: minimal configuration, can run the application immediately.
• Embedded server (e.g., Tomcat), no need to deploy WAR files separately.
• A large number of ready-to-use starters for database integration, web, security, and more.
• Support for microservices architecture.

This allows developers to focus on business logic rather than infrastructure setup.