Question

我有一个应用程序在50个域类中使用bean验证。它在Spring MVC控制器中使用@Valid已经工作了好几个月没有任何问题。

现在突然间，我在Hibernate中使许多字段“懒惰”以提高性能。我不得不处理各种奇怪的问题，从equals（）方法不再工作，到会话崩溃的对象，因为没有加载数据。

我现在遇到了一个非常奇怪的问题，我将数据加载到Spring MVC表单上的会话属性中，视图正确呈现，但是当传递给@Valid时，它会报告即使数据100％有效，所有字段也会出错。

public class EducationFacility extends DomainObject {

    /* Members */
    @NotEmpty(message = "{educationFacility.name.notEmpty}")
    private String name;

    @Valid
    private Address address = new Address();

    @Pattern(message = "{educationFacility.phoneNumber.valid}",
        regexp = "(\\()?(\\d){3}(\\))?(\\s|-)(\\d){3}(\\s|-)(\\d){4}")
    private String phoneNumber = "";
    ...
}

这是hibernate的定义：

<class name="jobprep.domain.educationfacility.EducationFacility" table="education_facility">
    <id name="id" column="education_facility_id" type="long">
        <generator class="native" />
    </id>
    <property name="name" column="name"/>
    <component name="address" class="jobprep.domain.educationfacility.Address">
        <property name="address" column="address"/>
        <property name="postalCode" column="postal_code"/>
        <many-to-one name="province" class="jobprep.domain.educationfacility.Province" column="province_id"  />
    </component>
    <property name="phoneNumber" column="phone_number"/>
    <property name="isEnabled" column="is_enabled"/>
    <property name="homepageViewable" column="homepage_viewable" />
    <property name="coursesCreated" />
    <many-to-one name="admin" class="jobprep.domain.user.Admin" column="admin_id" />
    <many-to-one name="director" class="jobprep.domain.educationfacility.Director"
                 column="director_id" cascade="all" />
    <bag name="teachers" inverse="true" cascade="all-delete-orphan" order-by="username asc">
        <key column="education_facility_id" />
        <one-to-many class="jobprep.domain.teacher.Teacher" />
    </bag>
    <bag name="students" inverse="true" cascade="all-delete-orphan" order-by="username asc">
        <key column="student_education_facility_id" />
        <one-to-many class="jobprep.domain.student.Student"/>
    </bag>
    <bag name="ipRestrictions" inverse="true" cascade="all-delete-orphan">
        <key column="education_facility_id" />
        <one-to-many class="jobprep.domain.educationfacility.IpRestriction" />
    </bag>
    <bag name="allowedModules" table="education_facility_to_module"
         inverse="false" lazy="true">
        <key column="education_facility_id" />
        <many-to-many class="jobprep.domain.module.Module" column="module_id"/>
    </bag>
</class>

这是控制器定义：

@Controller
@RequestMapping("/myEducationFacility")
@SessionAttributes("educationFacility")
@PreAuthorize("hasRole('ROLE_DIRECTOR')")
public class MyEducationFacilityController extends ControllerSupport {
    ....
}

这是MVC的保存方法：

    @RequestMapping(value = "/save", method = RequestMethod.POST)
    public String save(@Valid EducationFacility educationFacility, BindingResult result, SessionStatus status) {
        if(result.hasErrors()) {
            return view("index");
        } else {
            adminService.saveEducationFacility(educationFacility);
            status.setComplete();

            return redirect("?complete=true");
        }
    }

这是错误Spring在Spring调用save（）时添加到绑定结果中。这些都是完全错误的：

{org.springframework.validation.BindingResult.educationFacility=org.springframework.validation.BeanPropertyBindingResult: 4 errors
    Field error in object 'educationFacility' on field 'phoneNumber': rejected value [(519) 254-3678]; codes [Pattern.educationFacility.phoneNumber,Pattern.phoneNumber,Pattern.java.lang.String,Pattern]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [educationFacility.phoneNumber,phoneNumber]; arguments []; default message [phoneNumber],[Ljavax.validation.constraints.Pattern$Flag;@29895454,(\()?(\d){3}(\))?(\s|-)(\d){3}(\s|-)(\d){4}]; default message [Must be of the form: ###-###-####]
    Field error in object 'educationFacility' on field 'address.address': rejected value [Windsor]; codes [NotEmpty.educationFacility.address.address,NotEmpty.address.address,NotEmpty.address,NotEmpty.java.lang.String,NotEmpty]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [educationFacility.address.address,address.address]; arguments []; default message [address.address]]; default message [Address may not be empty]
    Field error in object 'educationFacility' on field 'name': rejected value [Catholic School Board]; codes [NotEmpty.educationFacility.name,NotEmpty.name,NotEmpty.java.lang.String,NotEmpty]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [educationFacility.name,name]; arguments []; default message [name]]; default message [Name may not be empty]
    Field error in object 'educationFacility' on field 'address.postalCode': rejected value [N9a 2a5]; codes [Pattern.educationFacility.address.postalCode,Pattern.address.postalCode,Pattern.postalCode,Pattern.java.lang.String,Pattern]; arguments [org.springframework.context.support.DefaultMessageSourceResolvable: codes [educationFacility.address.postalCode,address.postalCode]; arguments []; default message [address.postalCode],[Ljavax.validation.constraints.Pattern$Flag;@29895454,[a-zA-Z]\d[a-zA-Z](\s|-)\d[a-zA-Z]\d]; default message [Postal Code must be of the format: a#a-#a#], educationFacility=class jobprep.domain.educationfacility.EducationFacility{id=3}}

帮助？

Answer 1

只是一个猜测，但尝试在getter而不是字段上设置约束注释。由于某些延迟加载魔法，这些字段的状态可能与getter返回的值不匹配。

Answer 2

问题确实是约束放置。想一想，延迟加载通过代理和方法拦截工作。这仅适用于将约束放在实体的getter上的情况。必须通过方法调用访问代理。如果您像放置约束一样直接访问字段，Validator将验证代理本身。另请参阅https://forum.hibernate.org/viewtopic.php?f=9&t=1005515和http://opensource.atlassian.com/projects/hibernate/browse/HV-348

Spring MVC的奇怪问题，使用@Valid和Hibernate进行Bean验证

2 个答案: