Springboot+Hutool自定义注解实现数据脱敏

<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.8.16</version>
</dependency>

/**
 * @author wangzhenjun
 * @date 2023/9/11 14:15
 */
@JacksonAnnotationsInside
@JsonSerialize(using = SensitiveInfoSerializer.class)
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface Desensitization {
    DesensitizationType type() default DesensitizationType.DEFAULT;
    /**
     * 前置不需要打码的长度
     */
    int prefixLen() default 0;
    /**
     * 后置不需要打码的长度
     */
    int suffixLen() default 0;
    /**
     * 遮罩字符
     */
    String maskingChar() default "*";
}

/**
 * @author wangzhenjun
 * @date 2023/9/11 14:43
 */
public enum DesensitizationType {
    // 自定义规则
    CUSTOMIZE_RULE,
    // 默认的
    DEFAULT,
    //用户id
    USER_ID,
    //中文名
    CHINESE_NAME,
    //身份证号
    ID_CARD,
    //座机号
    FIXED_PHONE,
    //手机号
    MOBILE_PHONE,
    //地址
    ADDRESS,
    //电子邮件
    EMAIL,
    //密码
    PASSWORD,
    //中国大陆车牌，包含普通车辆、新能源车辆
    CAR_LICENSE,
    //银行卡
    BANK_CARD
}

/**
 * 数据脱敏序列化器
 *
 * @author wangzhenjun
 * @date 2023/9/11 14:16
 */
public class SensitiveInfoSerializer extends JsonSerializer<String> implements ContextualSerializer {
    private boolean useMasking = false;
    private DesensitizationType type;
    private int prefixLen;
    private int suffixLen;
    private String maskingChar;
    @Override
    public void serialize(String value, JsonGenerator gen, SerializerProvider serializers) throws IOException {
        if (useMasking && value != null) {
            switch (type) {
                case MOBILE_PHONE:
                    gen.writeString(DesensitizedUtil.mobilePhone(value));
                    break;
                case ID_CARD:
                    gen.writeString(DesensitizedUtil.idCardNum(value, prefixLen, suffixLen));
                    break;
                case CUSTOMIZE_RULE:
//                    gen.writeString(StrUtil.replace(value, prefixLen, suffixLen, maskingChar));
                    gen.writeString(StrUtil.hide(value, prefixLen, suffixLen));
                    break;
                case CHINESE_NAME:
                    gen.writeString(DesensitizedUtil.chineseName(value));
                    break;
                case DEFAULT:
                    gen.writeString(value);
                default:
                    gen.writeString(value);
            }
        } else {
            gen.writeObject(value);
        }
    }
    @Override
    public JsonSerializer<?> createContextual(SerializerProvider prov, BeanProperty property) {
        if (property != null) {
            Desensitization desensitization = property.getAnnotation(Desensitization.class);
            if (desensitization != null) {
                this.type = desensitization.type();
                this.prefixLen = desensitization.prefixLen();
                this.suffixLen = desensitization.suffixLen();
                this.maskingChar = desensitization.maskingChar();
                useMasking = true;
            }
        }
        return this;
    }
}

/**
 * @author wangzhenjun
 * @date 2023/9/12 9:15
 */
@Data
public class User {
    @Desensitization(type = DesensitizationType.ID_CARD,prefixLen = 6,suffixLen = 16)
    private String cardId;
    @Desensitization(type = DesensitizationType.CHINESE_NAME)
    private String name;
    @Desensitization(type = DesensitizationType.MOBILE_PHONE)
    private String phone;
    @Desensitization(type = DesensitizationType.CUSTOMIZE_RULE,prefixLen = 3,suffixLen = 6)
    private String info;
}

@GetMapping("/getUser")
public Result getUser(){
    User user = new User();
    user.setCardId("372911111111111111");
    user.setPhone("15822229999");
    user.setName("赵飞燕");
    user.setInfo("这是机密文件，该打码打码");
    return Result.success(user);
}