Have you had experience developing applications using Spring Boot?

Yes, I have experience developing applications using Spring Boot. Spring Boot allows for quick creation of ready-to-run Java applications with minimal configuration. It provides an embedded server, auto-configuration, and many starters for integration with databases, web services, and other technologies.

Example of a simple REST controller in Spring Boot:

@RestController
public class HelloController {
    @GetMapping("/hello")
    public String hello() {
        return "Hello, Spring Boot!";
    }
}

Spring Boot significantly simplifies the development and deployment of Java applications.