小编Ste*_*sen的帖子

我试图使用SpEL模板从实体生成文件名.我有两个看起来类似的实体:

@Entity
public class Invoice implements Serializable {
    private String invoicenumber;
    private Customer customer;

    @Column(name = "invoicenumber", nullable = false, length = 20)
    public String getInvoicenumber() {
        return this.invoicenumber;
    }

    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "fk_customer", nullable = false)
    public Customer getCustomer() {
        return this.customer;
    }
}

@Entity
public class Customer implements Serializable {
    private String firstname;
    private String lastname;

    @Column(name = "firstname", nullable = false, length = 20)
    public String getFirstname() {
        return this.firstname;
    }

    @Column(name = "lastname", nullable …

我有一个用于输入日期的Spring MVC表单，输入被发送到Controller并通过标准Spring MVC验证进行了验证。

模型：

public class InvoiceForm {
    @Future
    private LocalDate invoicedate;
}

控制器：

public String postAdd(@Valid @ModelAttribute InvoiceForm invoiceForm, BindingResult result) {
    ....
}

提交表单时，出现以下错误：

public class InvoiceForm {
    @Future
    private LocalDate invoicedate;
}

我ConstraintValidator为这种情况实施了自己的程序。但是以某种方式，Spring Boot不会选择它进行验证。

@Component
public class LocalDateFutureValidator implements ConstraintValidator<Future, LocalDate> {

    @Override
    public void initialize(Future future) {
    }

    @Override
    public boolean isValid(LocalDate localDate, ConstraintValidatorContext constraintValidatorContext) {
        LocalDate today = LocalDate.now();
        return localDate.isEqual(today) || localDate.isAfter(today);
    }
}

我知道我可以简单地编写自己的注释并在其中指定验证器，但是不是更干净，更简单的方法吗？