如何将Java Spring Boot应用程序的根目录（“/”）映射到index.html

html
    
    
Welcome to My Application
    
This is the home page of my application.

properties
spring.mvc.view.prefix=/static/
spring.mvc.view.suffix=.html

yaml
spring:
  mvc:
    view:
      prefix: /static/
      suffix: .html

java
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class HomeController {
    @GetMapping("/")
    public String home() {
        return "index";
    }
}