hibernate自定义校验Valid

import javax.validation.Constraint;import javax.validation.Payload;import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER})@Retention(RetentionPolicy.RUNTIME)@Constraint(validatedBy = MyValidatorClass.class)public @interface MyValidator { ???String message(); ???Class<?>[] groups() default {}; ???Class<? extends Payload>[] payload() default {};}

import javax.validation.ConstraintValidator;import javax.validation.ConstraintValidatorContext;/** * MyValidator，自定义注解 * String 标注在String类型的字段上，传过来的值是String类型 */public class MyValidatorClass implements ConstraintValidator<MyValidator,String> { ???/** ????* 初始化注解时执行的 ????* @param myValidator ????*/ ???@Override ???public void initialize(MyValidator myValidator) { ???} ???/** ????* 真正的校验逻辑 ????* @param o ????* @param constraintValidatorContext ????* @return ????*/ ???@Override ???public boolean isValid(String o, ConstraintValidatorContext constraintValidatorContext) { ???????return false; ???}}