Hibernate验证上的自定义错误消息 [英] Custom error messaging on Hibernate Validation

问题描述

我正在尝试在我的电子商务站点中设置休眠验证. 我有一个分配了多个对象的订单对象.当客户进行结帐时，我希望能够单独验证这些对象-有时以一种形式验证多个对象.

I am trying to set up Hibernate Validation in my ecommerce site. I have an order object with multiple objects assigned. As the customer goes through the checkout, I want to be able to individually validate these objects - sometimes multiple objects with one form.

例如，在提交交货表单后，应该验证deliveryCharge和deliveryAddress.如果此验证失败，则将返回交付表单，其中包含验证错误列表.

For example, upon submitting the delivery form, the deliveryCharge and deliveryAddress should be validated. If this validation fails, the delivery form will be returned with a list of validation errors.

我可以通过Java实现来验证对象，但是当我尝试使用<form:error />标签在视图层上查看这些对象时，我什么也没得到.

I can validate the objects via a java implementation, however when I try to view these on the view tier using <form:error /> tag, I am not getting anything.

订单模型

@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 休眠验证文档

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

推荐答案

我认为您需要的是验证组.它们使您可以通过几个步骤来验证不同的约束集.

I think what you are after is validation groups. They allow you to validate different sets of constraints in several steps.

通过定义接口来声明所需的组，并将您的约束分配给一个或多个组:

Declare the required groups by defining interfaces and assign your constraints to one or more groups:

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:

Then validate the required group(s) for each form or page by passing the group identifiers to validate():

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

Hibernate验证程序参考指南有关此主题的更多信息.

The Hibernate Validator reference guide has more information on this topic.

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