[Java] Validator custom annotation ConstraintValidator

Presentation layer

import lombok.Data;

@Data
public class UserVo {
    @IsMobile
    private String mobile;
}

Annotation class:

import javax.validation.Constraint;
import javax.validation.Payload;
import javax.validation.ReportAsSingleViolation;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import java.lang.annotation.*;

@Documented
//校验的规则类
@Constraint(
        validatedBy = {MyValidator.class}
)
@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
@ReportAsSingleViolation
@NotNull
@Size(
        min = 1
)
/**
 * 自定义注解类
 */
public @interface IsMobile {

    boolean mobile_status() default true;

    String message() default "手机号格式错误";

    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};
}

Implement ConstraintValidator

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

public class MyValidator implements ConstraintValidator<IsMobile,String> {

    private boolean mobile_status=false;

    //数据初始化
    @Override
    public void initialize(IsMobile isMobile) {
        mobile_status = isMobile.mobile_status();
    }

    //手机号校验规则
    @Override
    public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
        if (mobile_status){

        }else {

        }
        return false;
    }
}