4

这应该是一个简单的问题，但我找不到直接的解决方案。

我正在使用 Spring Message Resource 从 .properties 文件中提供系统上的所有文本。我需要它来解决国际化问题，并且不能使用 Spring 的默认消息。

这是问题所在：

我的 .properties 文件中有以下行：

validator_invalid_state_name=Invalid name ({min}, {max})

验证码是：

@Size( min=3, max=5, message="validator_invalid_state_name" )
public String name;

但是，当向字段发送无效值时，消息是：

"Invalid name ({min}, {max})"而不是"Invalid name (3, 5)"。

我尝试了几种解决方案但均未成功，例如：

@Size( min=3, max=5, message="{validator_invalid_state_name}" )
@Size( min=3, max=5, message="${validator_invalid_state_name}" )
@Size( min=3, max=5, message="Size.name" ) // with "Size.name=Invalid name ({min}, {max})" in my .properties file
@Size( min=3, max=5, message="{Size.name}" ) //idem

但如果我只使用

@Size( min=3, max=5 )

然后，我从 Spring 获得默认消息（我不想使用）。我需要的非常简单：使用自定义 .properties 文件中的我自己的消息，但使用 @Size 注释提供的参数。

有什么建议么？

先感谢您。

4

2 回答 2

5

访问密钥的正确语法是

@Size( min=3, max=5, message="{validator_invalid_state_name}" )

然而问题在于，在默认设置中，密钥查找不会针对您的 custom.properties，而是针对 Spring 的 ValidationMessages.properties。因此，让您启动并运行的最快方法是创建一个 ValidationMessages.properties （以及 18n 等效项）并添加您的密钥，例如

validator_invalid_state_name=Invalid name ({min}, {max})

这是最简单的解决方案，没有配置问题。

现在，既然您希望从您的属性文件中提供此服务，那么它是可行的，但您必须找到合适的配置。对于 Spring 4.x，这将是正确的 xml 和 java 配置。

Java 配置

@Bean(name = "messageSource")
public MessageSource messageSource()
{
    ReloadableResourceBundleMessageSource bean = new ReloadableResourceBundleMessageSource();
    bean.setBasename("classpath:text");
    bean.setDefaultEncoding("UTF-8");
    return bean;
}

@Bean(name = "validator")
public LocalValidatorFactoryBean validator()
{
    LocalValidatorFactoryBean bean = new LocalValidatorFactoryBean();
    bean.setValidationMessageSource(messageSource());
    return bean;
}

@Override
public Validator getValidator()
{
    return validator();
}

XML 配置

    <annotation-driven validator="validator">
    <!--i18n filtering-->
    <beans:bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource">
        <beans:property name="basenames">
            <beans:list>
                <beans:value>classpath:custom</beans:value>
            </beans:list>
        </beans:property>
        <beans:property name="defaultEncoding" value="UTF-8"/>
    </beans:bean>

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

对于 Spring mvc 3.x，您不会在 LocalValidatorFactoryBean 上找到validationMessageSource属性，因为您必须创建消息插值器并进行设置。您在此线程http://forum.spring.io/forum/spring-projects/web/78675-jsr-303-validation-spring-mvc-and-messages-properties中有一个示例。希望能帮助到你

于 2014-11-16T08:41:58.217 回答
0

如果您使用具有 JPA 持久性支持的 Spring Boot，则此解决方案不起作用。系统抛出；

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name '(inner bean)#427e977': Cannot resolve reference to bean 'entityManagerFactory' while setting constructor argument; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@4f430ea5: startup date [Fri Sep 18 09:33:54 EEST 2015]; root of context hierarchy
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:359)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:108)
at org.springframework.beans.factory.support.ConstructorResolver.resolveConstructorArguments(ConstructorResolver.java:634)
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:444)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1119)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1014)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:299)
... 96 more

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory': Post-processing of FactoryBean's singleton object failed; nested exception is java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@4f430ea5: startup date [Fri Sep 18 09:33:54 EEST 2015]; root of context hierarchy
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:116)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1523)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:314)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:351)
... 104 more
Caused by: java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@4f430ea5: startup date [Fri Sep 18 09:33:54 EEST 2015]; root of context hierarchy
at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:344)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
at org.springframework.boot.autoconfigure.orm.jpa.DataSourceInitializedPublisher.postProcessAfterInitialization(DataSourceInitializedPublisher.java:69)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:422)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.postProcessObjectFromFactoryBean(AbstractAutowireCapableBeanFactory.java:1719)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:113)
... 108 more

（我认为正在发生的事情是，我们不知何故忽略了 spring.datasource 语句所在的 application.properties，但我不知道为什么！）。我设法让它与以下java配置一起工作，删除上面Master Slave给出的messageSource的用户定义并注入SpringBoot提供的messageSource。这现在从 messages.properties 而不是 ValidationMessages.properties 填充我的验证消息

@SpringBootApplication
public class MyApplication extends WebMvcConfigurerAdapter {

@Autowired
MessageSource messageSource;

public static void main(String[] args) {
    SpringApplication.run(MyApplication.class, args);
}

    @Bean(name = "validator")
public LocalValidatorFactoryBean validator()
{
    LocalValidatorFactoryBean bean = new LocalValidatorFactoryBean();
    bean.setValidationMessageSource(messageSource);
    return bean;
}

@Override
public Validator getValidator()
{
    return validator();
}
}
于 2015-09-18T06:44:48.043 回答