Question

我正在尝试在我的电子商务网站中设置Hibernate验证。我有一个分配了多个对象的订单对象。当客户完成结账时，我希望能够单独验证这些对象 - 有时是一个表单的多个对象。

例如，在提交交付表单时，应验证deliveryCharge和deliveryAddress。如果此验证失败，将返回交付表单，其中包含验证错误列表。

我可以通过java实现验证对象，但是当我尝试使用<form:error />标记在视图层上查看这些对象时，我没有得到任何东西。

订单型号

@Entity
@Table(name = "bees_address")
public class Address {
  @OneToOne
  @JoinColumn(name = "paymentAddress")
  private Address payment;

  @OneToOne
  @JoinColumn(name = "deliveryAddress")
  private Address payment;

  @Column(name = "deliveryCharge")
  private Integer deliveryCharge;
  ...

地址模型

@Entity
@Table(name = "bees_address")
public class Address {
  @Size(min=2, max=150)
  @Column(name = "line1", length = 150)
  private String line1;
  ...

控制器

public String updateDelivery(HttpServletRequest request, @ModelAttribute("basket") Order basketUpdate) {

  Address deliveryAddress = basketUpdate.getDeliveryAddress();

  if (!Validate.isValid(request, deliveryAddress)) {
    logger.info("Delivery address does not validate");
    return "redirect:/checkout/delivery";           
  } else {
    /* do stuff here */
  }

  return "redirect:/checkout/payment";
}

验证 Hibernate Validation Docs

public static Boolean isValid(HttpServletRequest request, Address address) {
  ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
  Validator  validator = factory.getValidator();

  Set<ConstraintViolation<Address>> constraintViolations = validator.validate(address);
  request.getSession().setAttribute("formErrors", constraintViolations);

  return constraintViolations.size() < 1;
}

JSP结构

<form:form action="${url}" method="post" modelAttribute="basket"
  Charge: <form:input path="deliveryCharge" />
  Address: <form:input path="deliveryAddress.line1" />
           <form:error path="deliveryAddress.line1" />
  ...

非常感谢

Answer 1

我认为你所追求的是验证组。它们允许您分几步验证不同的约束集。

通过定义接口并将约束分配给一个或多个组来声明所需的组：

public interface DeliveryChecks{}
public interface PaymentChecks{}

public class Address {

    @NotNull(groups = PaymentChecks.class)
    private Address payment;

    @Min(value=5, groups = DeliveryChecks.class)
    private Integer deliveryCharge;
    ...
}

然后通过将组标识符传递给validate()来验证每个表单或页面所需的组：

 Set<ConstraintViolation<Address>> constraintViolations =
     validator.validate(address, PaymentChecks.class);

Hibernate Validator reference guide提供了有关此主题的更多信息。

Hibernate验证上的自定义错误消息

1 个答案: