Spring JSR303验证不像Spring文档中描述的那样工作

Question

我尝试为我的Web应用程序实现验证,如Spring 3.0文档的5.7.4.3节所述:

<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    <property name="webBindingInitializer">
        <bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
            <property name="validator">
                <bean class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />
            </property>
        </bean>
    </property>
</bean>

我已经添加了hibernate-validator作为依赖项,一切看起来都不错,但启动我的Web应用程序会导致以下错误:

org.springframework.beans.NotWritablePropertyException:
Invalid property 'validator' of bean class
[org.springframework.web.bind.support.ConfigurableWebBindingInitializer]:
Bean property 'validator' is not writable or has an invalid setter method.
Does the parameter type of the setter match the return type of the getter?

在查看API时,很明显出现了问题.LocalValidatorFactoryBean实现javax.validation.Validator,而ConfigurableWebBindingInitializer.setValidator()需要一个org.springframework.validation.Validator.

对此有何解决方案？

编辑

关于LocalValidatorFactoryBean:

这是javax.validationSpring应用程序上下文中(JSR-303)设置的中心类:它引导javax.validation.ValidationFactory 并通过Spring Validator接口以及JSR-303 Validator接口和ValidatorFactory接口本身公开它.

就像亚历克斯马歇尔在下面所说的那样情况并非如此.LocalValidatorFactoryBean只实现javax.validation.Validator.

LocalValidatorFactoryBean确实延伸SpringValidatorAdapter,实现 org.springframework.validation.Validator.

Answer 1

以下是此问题的解决方法:

使用validator上面我的问题中的bean配置,您必须使用验证在每个控制器中添加以下代码.

@Autowired
private javax.validation.Validator validator;

@InitBinder
protected void initBinder(WebDataBinder binder) {
    binder.setValidator((org.springframework.validation.Validator) this.validator);
}

它很脏,但它的工作原因是LocalValidatorFactoryBean扩展SpringValidatorAdapter并实现org.springframework.validation.Validator.