我正在尝试Spring data JDBC（1.1.0. M3）。我有一个包含电子邮件属性（类电子邮件）的格式（教师）类。电子邮件是一个不可变的类。当我从数据库中检索所有教师时，我有以下内容

异常：java.lang.UnsupportedOperationException:无法设置不可变属性fr.yestech.data.jdbc.domain.Email.Email

似乎Spring数据 JDBC 不能很好地处理最终属性！

public class Formateur {

    private @Id Long id;
    private String nom;
    @Embedded
    private Email email;

...
}

电子邮件类（不可变类，因此没有setters！）

public final class Email {

    private final String email;
    private static final Pattern EMAIL_PATTERN = Pattern.compile("^[_A-Za-z]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,})$");

    private Email(String email) {
      Objects.requireNonNull(email, "Adresse email doit être non null!");
        if (!EMAIL_PATTERN.matcher(email).matches())
          throw new IllegalArgumentException("L'adresse email est 
                     invalide !");
        this.email = email;
    }

    public static Email of(String email) {
        return new Email(email);
    }
...
}

应用

@SpringBootApplication
public class SpringJdbcApplication {

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

    @Bean
    ApplicationRunner applicationRunner(FormateurRepository formateurRepository) {
        return args -> {
            Formateur teacher = Formateur.of("YesTech", Email.of("yestech@email.com"), Adresse.of("Goux"));

            formateurRepository.save(teacher); 
            formateurRepository.findAll().forEach(System.out::println);
        };
    }

}