DouglasOliveira10

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

DouglasOliveira10

@RestController
public class LivroController {
    
    @GetMapping("/livros")
    public List<Livro> findAll() {
        
        List<Livro> livros = Arrays.asList(
            new Livro(1L, "A menina que roubava livros."), 
            new Livro(2L, "O senhor dos anéis"));
       

DouglasOliveira10

public class Livro {
    private Long id;
    private String nome;
    
    public Livro(Long id, String nome) {
        super();
        this.id = id;
        this.nome = nome;
    }
    

DouglasOliveira10

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.0.5.RELEASE</version>
</parent>

<dependencies>
	<dependency>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-web</artifactId>