Spring项目脱敏操作

项目中遇到的一些身份证电话号码邮箱等有些时候会进行保密处理

/**
 * <b>DesensitionType</b>
 *
 * @description: DesensitionType <br>
 * @date: 2021/1/19 13:55 <br>
 * @author: molin <br>
 * @version: 1.0 <br>
 */
public enum DesensitionType {
    //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;
}

/**
 * <b>Desensitization</b>
 *
 * @description: Desensitization <br>
 * @date: 2021/1/19 13:54 <br>
 * @author: molin <br>
 * @version: 1.0 <br>
 */
@JacksonAnnotationsInside
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
@JsonSerialize(using = DesensitizationSerialize.class)
public @interface Desensitization {

    /**
     * 脱敏类型规则
     * @return
     */
    DesensitionType value();
}

/**
 * <b>DesensitizationSerialize</b>
 *
 * @description: DesensitizationSerialize <br>
 * @date: 2021/1/19 13:55 <br>
 * @author: molin <br>
 * @version: 1.0 <br>
 */
public class DesensitizationSerialize extends JsonSerializer implements ContextualSerializer {
    private DesensitionType type;

    public DesensitizationSerialize(){}

    public DesensitizationSerialize(final DesensitionType type){
        this.type = type;
    }

    @Override
    public JsonSerializer<?> createContextual(SerializerProvider provider, BeanProperty beanProperty) throws JsonMappingException {
        if(beanProperty != null){
            //获取字段是否有脱敏注解，有则创建一个序列化对象，并调用serialize方法
            Desensitization desensitization = beanProperty.getAnnotation(Desensitization.class);
            if(desensitization == null){
                desensitization = beanProperty.getContextAnnotation(Desensitization.class);
            }
            // 如果定义了脱敏注解，就将需要脱敏的类型传入DesensitizationSerialize构造函数
            if(desensitization != null){
                return new DesensitizationSerialize(desensitization.value());
            }
            return provider.findValueSerializer(beanProperty.getType() , beanProperty);
        }
        return provider.findNullValueSerializer(beanProperty);
    }

    @Override
    public void serialize(Object value, JsonGenerator jsonGenerator, SerializerProvider serializers) throws IOException {
        switch (this.type){
//            case USER_ID:
//                jsonGenerator.writeNumber(DesensitizedUtils.userId());
//                break;
//            case CHINESE_NAME:
//                jsonGenerator.writeString(DesensitizedUtils.chineseName(String.valueOf(value)));
//                break;
            case ID_CARD:
                jsonGenerator.writeString(DesensitizedUtils.idCardNum(String.valueOf(value),3,3));
                break;
//            case FIXED_PHONE:
//                jsonGenerator.writeString(DesensitizedUtils.fixedPhone(String.valueOf(value)));
//                break;
            case MOBILE_PHONE:
                jsonGenerator.writeString(DesensitizedUtils.mobilePhone(String.valueOf(value)));
                break;
            case ADDRESS:
                jsonGenerator.writeString(DesensitizedUtils.address(String.valueOf(value), 8));
                break;
            case EMAIL:
                jsonGenerator.writeString(DesensitizedUtils.email(String.valueOf(value)));
                break;
//            case PASSWORD:
//                jsonGenerator.writeString(DesensitizedUtils.password(String.valueOf(value)));
//                break;
            default:
        }
    }
}

/**
 * <b>DesensitizedUtils</b>
 *
 * @description: DesensitizedUtils <br>
 * @date: 2021/1/19 13:56 <br>
 * @author: molin <br>
 * @version: 1.0 <br>
 */
public class DesensitizedUtils {
    /**
     *  【用户id】不对外提供userId
     * @return
     */
    public static Long userId(){
        return Long.valueOf(0);
    }

    /**
     * 【中文姓名】只显示第一个汉字，其他隐藏为2个星号，比如：李**
     *
     * @param fullName
     * @return
     */
    public static String chineseName(String fullName) {
        if (StringUtils.isBlank(fullName)) {
            return "";
        }
        String name = StringUtils.left(fullName, 1);
        return StringUtils.rightPad(name, StringUtils.length(fullName), "*");
    }

    /**
     * 【身份证号】前三位 和后三位
     *
     * @param front
     * @param end
     * @return
     */
    public static String idCardNum(String idCardNum, int front, int end) {
        //身份证不能为空
        if (StringUtils.isEmpty(idCardNum)) {
            return "";
        }
        //需要截取的长度不能大于身份证号长度
        if ((front + end) > idCardNum.length()) {
            return "";
        }
        //需要截取的不能小于0
        if (front < 0 || end < 0) {
            return "";
        }
        //计算*的数量
        int asteriskCount = idCardNum.length() - (front + end);
        StringBuffer asteriskStr = new StringBuffer();
        for (int i = 0; i < asteriskCount; i++) {
            asteriskStr.append("*");
        }
        String regex = "(\\w{" + String.valueOf(front) + "})(\\w+)(\\w{" + String.valueOf(end) + "})";
        return idCardNum.replaceAll(regex, "$1" + asteriskStr + "$3");
    }

    /**
     * 【固定电话 前四位，后两位
     *
     * @param num
     * @return
     */
    public static String fixedPhone(String num) {
        if (StringUtils.isBlank(num)) {
            return "";
        }
        return StringUtils.left(num, 4).concat(StringUtils.removeStart(StringUtils.leftPad(StringUtils.right(num, 2), StringUtils.length(num), "*"), "****"));
    }

    /**
     * 【手机号码】前三位，后两位，其他隐藏，比如135******10
     *
     * @param num
     * @return
     */
    public static String mobilePhone(String num) {
        if (StringUtils.isBlank(num)) {
            return "";
        }
        return StringUtils.left(num, 3).concat(StringUtils.removeStart(StringUtils.leftPad(StringUtils.right(num, 2), StringUtils.length(num), "*"), "***"));
    }

    /**
     * 【地址】只显示到地区，不显示详细地址，比如：北京市海淀区****
     *
     * @param address
     * @param sensitiveSize 敏感信息长度
     * @return
     */
    public static String address(String address, int sensitiveSize) {
        if (StringUtils.isBlank(address)) {
            return "";
        }
        int length = StringUtils.length(address);
        return StringUtils.rightPad(StringUtils.left(address, length - sensitiveSize), length, "*");
    }

    /**
     * 【电子邮箱 邮箱前缀仅显示第一个字母，前缀其他隐藏，用星号代替，@及后面的地址显示，比如：d**@126.com>
     *
     * @param email
     * @return
     */
    public static String email(String email) {
        if (StringUtils.isBlank(email)) {
            return "";
        }
        int index = StringUtils.indexOf(email, "@");
        if (index <= 1) {
            return email;
        } else {
            return StringUtils.rightPad(StringUtils.left(email, 1), index, "*").concat(StringUtils.mid(email, index, StringUtils.length(email)));
        }
    }

    /**
     * 【密码】密码的全部字符都用*代替，比如：******
     *
     * @param password
     * @return
     */
    public static String password(String password) {
        if (StringUtils.isBlank(password)) {
            return "";
        }
        String pwd = StringUtils.left(password, 0);
        return StringUtils.rightPad(pwd, StringUtils.length(password), "*");
    }

}

/**
 * <b>DTO</b>
 *
 * @description: XXXXXDto <br>
 * @date: 2020/10/1 00:00 <br>
 * @author: kfw-mbg <br>
 * @version: 1.0 <br>
 */
public class XXXXXDto implements Serializable {
  @ApiModelProperty(value = "证件号")
  @Desensitization(value = DesensitionType.ID_CARD)
  private String certNo;
}

Spring项目脱敏操作

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