自定义注解实现校验

首先需要准备一个validation组件的maven依赖

		
        
        
            org.springframework.boot
            spring-boot-starter-validation
            2.6.6
        

定义注解

package com.zzf.seckilldemo.validator;

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


@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER, ElementType.TYPE_USE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Constraint(
        validatedBy = {IsMobileValidator.class}
)
public @interface IsMobile {

    boolean required() default true;

    String message() default "{手机号码格式不正确}";

    Class[] groups() default {};

    Class[] payload() default {};


}

其中IsMobileValidator.class也需要自己定义，表示具体的校验方式

package com.zzf.seckilldemo.validator;

import com.zzf.seckilldemo.utils.ValidatorUtil;
import org.springframework.util.StringUtils;

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


public class IsMobileValidator implements ConstraintValidator {

    private boolean required = false;

    @Override
    public void initialize(IsMobile constraintAnnotation) {
        required = constraintAnnotation.required();
    }

    @Override
    public boolean isValid(String s, ConstraintValidatorContext constraintValidatorContext) {
        if(required){
            return ValidatorUtil.isMobile(s);
        }else {
            if(StringUtils.isEmpty(s)){
                return true;
            }else {
                return ValidatorUtil.isMobile(s);
            }
        }
    }
}

ValidatiorUtil

package com.zzf.seckilldemo.utils;

import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;


@Component
public class ValidatorUtil {
    private static final Pattern mobile_pattern = Pattern.compile("[1]([3-9])[0-9]{9}$");

    
    public static boolean isMobile(String mobile){
        if(StringUtils.isEmpty(mobile)){
            return false;
        }
        Matcher matcher=mobile_pattern.matcher(mobile);
        return matcher.matches();
    }
}