java – Hibernate验证器,自定义ResourceBundleLocator和Spring

我试图在hibernate验证4.1中覆盖默认的ResourceBundleLocator.到目前为止,它的工作原理完美,但其使用的唯一示例包括实例化验证工具的
java代码.

当使用Spring应用程序进行hibernate自动配置(只有适当的hibernate验证* .jar文件应该存在并且会被自动使用).在这种情况下,如何替代ResourceBundleLocator？在任何属性或applicationContext.xml文件中,我没有看到任何自定义ResourceBundleLocator的方法.

解决方法

所需工作的魔法是
LocalValidatorFactoryBean#setValidationMessageSource(MessageSource messageSource).

首先,合同方式： –

Specify a custom Spring MessageSource for resolving validation
messages,instead of relying on
JSR-303’s default
“ValidationMessages.properties” bundle
in the classpath. This may refer to a
Spring context’s shared
“messageSource” bean,or to some
special MessageSource setup for
validation purposes only.

注意：此功能需要休眠
验证器4.1或更高版本
类路径.你可以使用a
不同的验证提供商,但
Hibernate验证器
ResourceBundleMessageInterpolator
课程必须在之前访问
组态.

指定此属性或
“messageInterpolator”,而不是两者.如果
你想建立一个习惯
MessageInterpolator,考虑派生
来自Hibernate Validator的
ResourceBundleMessageInterpolator和
穿过春天
MessageSourceResourceBundleLocator
构建插值器时.

您可以通过调用此方法来指定自定义的message.properties(或.xml)…像这样…

我-beans.xml文件

<bean name="validator"
    class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
    <property name="validationMessageSource">
        <ref bean="resourceBundleLocator"/>
    </property>
</bean>

<bean name="resourceBundleLocator" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
    <property name="basenames">
        <list>
            <value>META-INF/validation_errors</value>
        </list>
    </property>
</bean>

validation_errors.properties

javax.validation.constraints.NotNull.message=MyNotNullMessage

Person.java

class Person {
    private String firstName;
    private String lastName;

    @NotNull
    public String getFirstName() {
        return firstName;
    }
    public void setFirstName(String firstName) {
        this.firstName = firstName;
    }
    public String getLastName() {
        return lastName;
    }
    public void setLastName(String lastName) {
        this.lastName = lastName;
    }
}

BeanValidationTest.java

public class BeanValidationTest {

    private static ApplicationContext applicationContext; 

    @BeforeClass
    public static void initialize() {
        applicationContext = new ClassPathXmlApplicationContext("classpath:META-INF/spring/webmvc-beans.xml");
        Assert.assertNotNull(applicationContext);
    }

    @Test
    public void test() {
        LocalValidatorFactoryBean factory = applicationContext.getBean("validator",LocalValidatorFactoryBean.class);
        Validator validator = factory.getValidator();
        Person person = new Person();
        person.setLastName("dude");
        Set<ConstraintViolation<Person>> violations = validator.validate(person);
        for(ConstraintViolation<Person> violation : violations) {
            System.out.println("Custom Message:- " + violation.getMessage());
        }
    }

}

Outupt：自定义消息： – MyNotNullMessage