Spring中的MessageInterpolator

Question

我使用Spring 3.1.1和Hibernate-validator 4.3.0.Final并且在更改默认的MessageInterpolator时遇到问题,它从ValidationMessages(在类路径中)获取验证消息.

我想使用ResourceBundleMessageInterpolator,它将从我的spring messageSource获取消息

我在application-context.xml中做了类似的事情:

<bean id="resourceBundleMessageInterpolator"
      class="org.hibernate.validator.messageinterpolation.ResourceBundleMessageInterpolator">
    <constructor-arg index="0">
        <bean class="org.springframework.validation.beanvalidation.MessageSourceResourceBundleLocator">
            <constructor-arg index="0" ref="messageSource"/>
        </bean>
    </constructor-arg>
</bean>
<bean id="validator"
      class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean">
    <property name="messageInterpolator" ref="resourceBundleMessageInterpolator"/>
</bean>

当我在日志中启动我的Web应用程序时,我看到:

11:04:07,402 DEBUG [org.hibernate.validator.internal.engine.ConfigurationImpl] - 
Setting custom MessageInterpolator of type
 org.springframework.validation.beanvalidation.LocaleContextMessageInterpolator 
11:04:07,402 DEBUG [org.hibernate.validator.internal.engine.ConfigurationImpl] - 
Setting custom ConstraintValidatorFactory of type org.springframework .validation.beanvalidation.SpringConstraintValidatorFactory

所以你可以看到,它不是我想要的ResourceBundleMessageInterpolator.它是LocaleContextMessageInterpolator

稍后,当我尝试验证某些内容时,我只是从ValidationMessages.properties获取消息,而不是来自spring消息源:

11:08:09,397 DEBUG [org.hibernate.validator.resourceloading.PlatformResourceBundleLocator] - 
ValidationMessages not found.
11:08:09,413 DEBUG [org.hibernate.validator.resourceloading.PlatformResourceBundleLocator] - 
org.hibernate.validator.ValidationMessages found.

从application-context.xml可以看出我想使用MessageSourceResourceBundleLocator,但是它已经使用了,我不知道为什么要使用PlatformResourceBundleLocator

有任何想法吗？

Answer 1

您不必自己声明ResourceBundleMessageInterpolator和MessageSourceResourceBundleLocatorbean(除非必须),它们是LocalValidatorFactoryBean在您提供时创建的messageSource:

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

(它在引擎盖下这样做:)

public void setValidationMessageSource(MessageSource messageSource) {
    this.messageInterpolator = HibernateValidatorDelegate.buildMessageInterpolator(messageSource);
}

// (...)


private static class HibernateValidatorDelegate {

    public static MessageInterpolator buildMessageInterpolator(MessageSource messageSource) {
        return new ResourceBundleMessageInterpolator(new MessageSourceResourceBundleLocator(messageSource));
    }
}

因此,通过简化的bean定义,您是否获得相同的调试输出？你在哪里使用"验证器"参考？您可能必须使用<mvc:annotation-driven validator="validator">例如.