FooController.java

package jvm.pablohdz.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/foo")
public class FooController {

    @GetMapping
    public List<Foo> hello() {
        return "Hello from Spring Boot!";
    }
}