java-如何将Spring bean注入Validator(休眠)

spring doc

我已阅读以下春季文档：

By default, the LocalValidatorFactoryBean configures a
SpringConstraintValidatorFactory that uses Spring to create
ConstraintValidator instances. This allows your custom
ConstraintValidators to benefit from dependency injection like any
other Spring bean.

我写了自定义验证器：

public class FieldMatchValidator implements ConstraintValidator<FieldMatch, Object>{
    @Autowired
    MyBeanDao dao;
    ...
}

但是在调试中,我看到dao为空.

请解释我不理解文档或我配置错误？

解决方法:

使用Spring Validator,它还实现Bean验证API.

请参见7.8.2配置Bean验证提供程序：

http://docs.spring.io/spring/docs/current/spring-framework-reference/html/validation.html

您也可以将其用于方法验证,请参阅上面的文档中的“ Spring驱动的方法验证”部分.

[UPDATE1]

如果要让休眠验证持久性,则需要在enityManagerFactory中设置jpa属性javax.persistence.validation.factory：

            <property name="jpaPropertyMap">
              <map>
                <entry key="javax.persistence.validation.factory" value-ref="validatorFactory" />
              </map>
            </property>

您可能还需要为事件设置验证组,请参阅：
http://docs.jboss.org/hibernate/validator/4.1/reference/en-US/html/validator-checkconstraints.html#validator-checkconstraints-orm-hibernateevent

标签：hibernate-validator,java,spring,bean-validation
来源： https://codeday.me/bug/20191013/1910496.html