自定义注解之校验字段 ​

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

@Target({ElementType.METHOD, ElementType.FIELD, ElementType.ANNOTATION_TYPE, ElementType.CONSTRUCTOR, ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Constraint(validatedBy = {MobileValidator.class})
public @interface MobileCheck {
    boolean required() default true;

    String message() default "手机号码格式有误!";

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

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

import com.geekq.miaosha.utils.ValidatorUtil;
import org.apache.commons.lang3.StringUtils;

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

public class MobileValidator implements ConstraintValidator<MobileCheck, String> {

    private boolean require = false;

    @Override
    public void initialize(MobileCheck isMobile) {
        require = isMobile.required();
    }

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

import org.apache.commons.lang3.StringUtils;

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

public class ValidatorUtil {

    private static final Pattern mobile_pattern = Pattern.compile("1\\d{10}");

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

import com.geekq.miaosha.validator.MobileCheck;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.hibernate.validator.constraints.Length;

import javax.validation.constraints.NotNull;

@Setter
@Getter
@AllArgsConstructor
@NoArgsConstructor
public class UserVo {
    @NotNull
    // 使用自定义注解MobileCheck对mobile字段进行手机号码校验
    @MobileCheck
    private String mobile;

    @NotNull
    @Length(min = 32)
    private String password;

    @Override
    public String toString() {
        return "UserVo{" +
                "mobile='" + mobile + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}