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SpringBoot数据脱敏
前言
对于某些接口返回的信息，涉及到敏感数据的必须进行脱敏操作，例如银行卡号、身份证号、手机号等，脱敏方式有多种方式。可以修改SQL语句，也可以写硬代码，也可以修改JSON序列化，这里介绍通过修改Jackson序列化方式实现数据脱敏。
一、引入hutool工具类
maven:
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-all</artifactId>
<version>5.8.5</version>
</dependency>
gradle:
// https://mvnrepository.com/artifact/cn.hutool/hutool-all
implementation group: 'cn.hutool', name: 'hutool-all', version: '5.8.5'
二、定义常用需要脱敏的数据类型的枚举
其中 OTHER类型为自定义类型，需在后面自定义脱敏的长度等。
package com.iscas.authentication.model.enums;
import lombok.Getter;
/**
*
* @version 1.0
* @since jdk1.8
*/
@Getter
public enum PrivacyTypeEnum {
/**
* 中文名
* */
CHINESE_NAME,
/**
* 固话
* */
FIXED_PHONE,
/**
* 手机号
* */
MOBILE_PHONE,
/**
* 住址
* */
ADDRESS,
/**
* 密码
* */
PASSWORD,
/**
* 银行卡号
* */
BANK_CARD,
/**
* 邮箱
* */
EMAIL,
/**
* 身份证
* */
ID_CARD,
/**
* 其他类型
* */
OTHER;
}
三、定义脱敏方式枚举
其中，DEFAULT类型时，需要数据类型为上一步枚举中除OTHER外的已确定的类型，NONE表示不做脱敏，其他类型为注释的意思。
package com.iscas.authentication.model.enums;
/**
*
* @version 1.0
* @since jdk1.8
*/
public enum DesensitizationTypeEnum {
/**
* 默认方式
* */
DEFAULT,
/**
* 头部脱敏
* */
HEAD,
/**
* 尾部脱敏
* */
TAIL,
/**
* 中间脱敏
* */
MIDDLE,
/**
* 头尾脱敏
* */
HEAD_TAIL,
/**
* 全部脱敏
* */
ALL,
/**
* 不脱敏，相当于没打这个注解
* */
NONE;
}
四、自定义脱敏的注解
其中，mode默认为DEFAULT，此时只需要设置dataType的类型为除OTHER外的确定类型即可，当mode不是DEFAULT或NONE时，根据不同的类型，headNoMaskLen等长度属性需要设置，见上面的注释的字面意思。
package com.iscas.authentication.annotation;
import com.fasterxml.jackson.annotation.JacksonAnnotationsInside;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import com.iscas.authentication.model.enums.DesensitizationTypeEnum;
import com.iscas.authentication.model.enums.PrivacyTypeEnum;
import com.iscas.authentication.service.DesensitizationSerializer;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
/**
* 脱敏注解
*
* @version 1.0
* @since jdk1.8
*/
@Target(ElementType.FIELD)
@Retention(RetentionPolicy.RUNTIME)
@JacksonAnnotationsInside
@JsonSerialize(using = DesensitizationSerializer.class)
public @interface Desensitization {
/**
* 脱敏的隐私数据类型
*/
PrivacyTypeEnum dataType();
/**
* 脱敏方式,默认方式不需要定义下面脱敏长度等信息，根据脱敏的隐私数据类型自动脱敏
*/
DesensitizationTypeEnum mode() default DesensitizationTypeEnum.DEFAULT;
/**
* 尾部不脱敏的长度，当mode为HEAD或MIDDLE时使用
*/
int tailNoMaskLen() default 1;
/**
* 头部不脱敏的长度，当mode为TAIL或MIDDLE时使用
*/
int headNoMaskLen() default 1;
/**
* 中间不脱敏的长度，当mode为HEAD_TAIL时使用
*/
int middleNoMaskLen() default 1;
/**
* 打码
*/
char maskCode() default '*';
}
五、自定义Jackson的序列化方式
package com.iscas.authentication.service;
import cn.hutool.core.util.DesensitizedUtil;
import cn.hutool.core.util.StrUtil;
import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.BeanProperty;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import com.fasterxml.jackson.databind.ser.ContextualSerializer;
import com.iscas.authentication.annotation.Desensitization;
import com.iscas.authentication.model.enums.DesensitizationTypeEnum;
import com.iscas.authentication.model.enums.PrivacyTypeEnum;
import lombok.AllArgsConstructor;
import lombok.NoArgsConstructor;
import java.io.IOException;
import java.util.Objects;
/**
* 脱敏序列化类
*
* @author zhuquanwen
* @version 1.0
* @date 2023/1/5 9:24
* @since jdk1.8
*/
@AllArgsConstructor
@NoArgsConstructor
public class DesensitizationSerializer extends JsonSerializer<String> implements ContextualSerializer {
private Desensitization desensitization;
@Override
public void serialize(String s, JsonGenerator jsonGenerator, SerializerProvider serializerProvider) throws IOException {
jsonGenerator.writeString(desensitize(s));
}
@Override
public JsonSerializer<?> createContextual(SerializerProvider serializerProvider, BeanProperty beanProperty) throws JsonMappingException {
if (beanProperty != null) {
if (Objects.equals(beanProperty.getType().getRawClass(), String.class)) {
Desensitization desensitization = beanProperty.getAnnotation(Desensitization.class);
if (desensitization == null) {
desensitization = beanProperty.getContextAnnotation(Desensitization.class);
}
if (desensitization != null) {
return new DesensitizationSerializer(desensitization);
}
}
return serializerProvider.findValueSerializer(beanProperty.getType(), beanProperty);
}
return serializerProvider.findNullValueSerializer(null);
}
/**
* 脱敏处理
* */
private String desensitize(String s) {
if (StrUtil.isNotBlank(s)) {
PrivacyTypeEnum dataType = desensitization.dataType();
DesensitizationTypeEnum mode = desensitization.mode();
switch (mode) {
case DEFAULT:
// 默认方式，根据dataType自动选择脱敏方式
s = autoDesensitize(s, dataType);
break;
case HEAD:
// 头部脱敏
s = headDesensitize(s);
break;
case TAIL:
// 尾部脱敏
s = tailDesensitize(s);
break;
case MIDDLE:
s = middleDesensitize(s);
break;
case HEAD_TAIL:
s = headTailDesensitize(s);
break;
case ALL:
s = allDesensitize(s);
break;
case NONE:
// 不做脱敏
break;
default:
}
}
return s;
}
/**
* 全部脱敏
* */
private String allDesensitize(String s) {
return String.valueOf(desensitization.maskCode()).repeat(s.length());
}
/**
* 头尾脱敏
* */
private String headTailDesensitize(String s) {
int middleNoMaskLen = desensitization.middleNoMaskLen();
if (middleNoMaskLen >= s.length()) {
// 如果中间不脱敏的长度大于等于字符串的长度，不进行脱敏
return s;
}
int len = s.length() - middleNoMaskLen;
// 头部脱敏
int headStart = 0;
int headEnd = len / 2;
s = StrUtil.replace(s, headStart, headEnd, desensitization.maskCode());
// 尾部脱敏
int tailStart = s.length() - (len - len / 2);
int tailEnd = s.length();
return StrUtil.replace(s, tailStart, tailEnd, desensitization.maskCode());
}
/**
* 中间脱敏
* */
private String middleDesensitize(String s) {
int headNoMaskLen = desensitization.headNoMaskLen();
int tailNoMaskLen = desensitization.tailNoMaskLen();
if (headNoMaskLen + tailNoMaskLen >= s.length()) {
// 如果头部不脱敏的长度+尾部不脱敏长度 大于等于字符串的长度，不进行脱敏
return s;
}
int start = headNoMaskLen;
int end = s.length() - tailNoMaskLen;
return StrUtil.replace(s, start, end, desensitization.maskCode());
}
/**
* 尾部脱敏
* */
private String tailDesensitize(String s) {
int headNoMaskLen = desensitization.headNoMaskLen();
if (headNoMaskLen >= s.length()) {
// 如果头部不脱敏的长度大于等于字符串的长度，不进行脱敏
return s;
}
int start = headNoMaskLen;
int end = s.length();
return StrUtil.replace(s, start, end, desensitization.maskCode());
}
/**
* 头部脱敏
* */
private String headDesensitize(String s) {
int tailNoMaskLen = desensitization.tailNoMaskLen();
if (tailNoMaskLen >= s.length()) {
// 如果尾部不脱敏的长度大于等于字符串的长度，不进行脱敏
return s;
}
int start = 0;
int end = s.length() - tailNoMaskLen;
return StrUtil.replace(s, start, end, desensitization.maskCode());
}
public static void main(String[] args) {
System.out.println(StrUtil.replace("231085198901091813", 2, -10, '#'));
}
/**
* 根据数据类型自动脱敏
* */
private String autoDesensitize(String s, PrivacyTypeEnum dataType) {
switch (dataType) {
case CHINESE_NAME:
s = DesensitizedUtil.chineseName(s);
break;
case FIXED_PHONE:
s = DesensitizedUtil.fixedPhone(s);
break;
case MOBILE_PHONE:
s = DesensitizedUtil.mobilePhone(s);
break;
case ADDRESS:
s = DesensitizedUtil.address(s, 8);
break;
case PASSWORD:
s = DesensitizedUtil.password(s);
break;
case BANK_CARD:
s = DesensitizedUtil.bankCard(s);
break;
case EMAIL:
s = DesensitizedUtil.email(s);
break;
case ID_CARD:
s = DesensitizedUtil.idCardNum(s, 1, 2);
break;
case OTHER:
// 其他类型的不支持以默认方式脱敏，直接返回
break;
default:
}
return s;
}
}六、使用
下面是一个测试的例子：
package com.iscas.base.biz.test.controller;
import com.iscas.base.biz.desensitization.Desensitization;
import com.iscas.base.biz.desensitization.DesensitizationTypeEnum;
import com.iscas.base.biz.desensitization.PrivacyTypeEnum;
import lombok.Data;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author zhuquanwen
* @version 1.0
* @date 2023/1/6 8:40
* @since jdk1.8
*/
@RestController
@RequestMapping("/test/desensitization")
public class TestDesensitizationController {
@GetMapping
public List<TestModel> test() {
TestModel t1 = new TestModel();
t1.setPassword("123456");
t1.setEmail("zzz@163.com");
t1.setPhone("137654879451");
t1.setFixPhone("0453-4785462");
t1.setBankCard("622648754896457");
t1.setIdCard("245874563214578965");
t1.setName("张王钊");
t1.setAddress("北京市昌平区xxx街道xxx小区1-1-101");
t1.setHeadStr("测试头部脱敏");
t1.setTailStr("测试尾部脱敏");
t1.setMiddleStr("测试中间脱敏");
t1.setHeadTailStr("测试头尾脱敏");
t1.setAllStr("测试全部脱敏");
t1.setNoneStr("测试不脱敏");
TestModel t2 = new TestModel();
t2.setPassword("iscas123");
t2.setEmail("xwg@sina.com");
t2.setPhone("18547896547");
t2.setFixPhone("010-62268795");
t2.setBankCard("622648754896487");
t2.setIdCard("100412547865478947");
t2.setName("李二麻子");
t2.setAddress("新疆省克拉玛依市xxx街道xxx小区1-1-101");
t2.setHeadStr("测试头部脱敏");
t2.setTailStr("测试尾部脱敏");
t2.setMiddleStr("测试中间脱敏");
t2.setHeadTailStr("测试头尾脱敏");
t2.setAllStr("测试全部脱敏");
t2.setNoneStr("测试不脱敏");
return new ArrayList<>(){{
add(t1);
add(t2);
}};
}
@Data
private static class TestModel {
/**
* 模拟密码
* */
@Desensitization(dataType = PrivacyTypeEnum.PASSWORD)
private String password;
/**
* 模拟邮箱
* */
@Desensitization(dataType = PrivacyTypeEnum.EMAIL)
private String email;
/**
* 模拟手机号
* */
@Desensitization(dataType = PrivacyTypeEnum.MOBILE_PHONE)
private String phone;
/**
* 模拟座机
* */
@Desensitization(dataType = PrivacyTypeEnum.FIXED_PHONE)
private String fixPhone;
/**
* 模拟银行卡
* */
@Desensitization(dataType = PrivacyTypeEnum.BANK_CARD)
private String bankCard;
/**
* 模拟身份证号
* */
@Desensitization(dataType = PrivacyTypeEnum.ID_CARD)
private String idCard;
/**
* 模拟中文名
* */
@Desensitization(dataType = PrivacyTypeEnum.CHINESE_NAME)
private String name;
/**
* 模拟住址
* */
@Desensitization(dataType = PrivacyTypeEnum.ADDRESS)
private String address;
/**
* 模拟自定义脱敏-头部脱敏
* */
@Desensitization(dataType = PrivacyTypeEnum.OTHER, mode = DesensitizationTypeEnum.HEAD, tailNoMaskLen = 4)
private String headStr;
/**
* 模拟自定义脱敏-尾部脱敏
* */
@Desensitization(dataType = PrivacyTypeEnum.OTHER, mode = DesensitizationTypeEnum.TAIL, headNoMaskLen = 4)
private String tailStr;
/**
* 模拟自定义脱敏-中间脱敏
* */
@Desensitization(dataType = PrivacyTypeEnum.OTHER, mode = DesensitizationTypeEnum.MIDDLE, headNoMaskLen = 2, tailNoMaskLen = 2)
private String middleStr;
/**
* 模拟自定义脱敏-两头脱敏
* */
@Desensitization(dataType = PrivacyTypeEnum.OTHER, mode = DesensitizationTypeEnum.HEAD_TAIL, middleNoMaskLen = 4)
private String headTailStr;
/**
* 模拟自定义脱敏-全部脱敏
* */
@Desensitization(dataType = PrivacyTypeEnum.OTHER, mode = DesensitizationTypeEnum.ALL)
private String allStr;
/**
* 模拟自定义脱敏-不脱敏
* */
@Desensitization(dataType = PrivacyTypeEnum.OTHER, mode = DesensitizationTypeEnum.NONE)
private String noneStr;
}
}下面是一个实际使用的例子如下，在tel、password、email上添加了@Desensitization注解，自定义的@TbField等注解请忽略
package com.iscas.authentication.model.sys;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import com.iscas.authentication.annotation.Desensitization;
import com.iscas.authentication.model.enums.PrivacyTypeEnum;
import com.iscas.templet.annotation.table.TbField;
import com.iscas.templet.annotation.table.TbFieldRule;
import com.iscas.templet.annotation.table.TbSetting;
import com.iscas.templet.view.table.TableFieldType;
import com.iscas.templet.view.table.TableSearchType;
import com.iscas.templet.view.table.TableViewType;
import io.swagger.v3.oas.annotations.media.Schema;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.ToString;
import lombok.experimental.Accessors;
import java.util.List;
/**
* @author zhuquanwen
* @version 1.0
* @date 2022/3/11 21:23
* @since jdk11
*/
@Data
@EqualsAndHashCode(callSuper = true)
@ToString(callSuper = true)
@Schema(title = "用户")
@TableName(value = "oauth_sys_user")
@Accessors(chain = true)
@TbSetting(title = "用户", checkbox = true, viewType = TableViewType.multi)
public class User extends BaseEntity {
@TableId(type = IdType.AUTO)
@Schema(title = "id")
@TbField(field = "id", header = "id",
type = TableFieldType.text, hidden = true)
private Integer id;
@Schema(title = "用户名")
@TbField(field = "name", header = "名称", search = true, searchType = TableSearchType.like,
type = TableFieldType.text, rule=@TbFieldRule(required = true, minLength = 2, maxLength = 20, distinct = true, desc = "用户名不能为空，且长度介于2-20个字符之间"))
private String name;
@Schema(title = "密码")
@TbField(field = "password", header = "密码", hidden = true, editable = false,
type = TableFieldType.text)
@Desensitization(dataType = PrivacyTypeEnum.PASSWORD)
private String password;
@Schema(title = "type")
@TbField(field = "type", header = "用户类型", search = true, searchType = TableSearchType.exact,
type = TableFieldType.select, option = "[{\"label\":\"正常用户\",\"value\":\"1\"},{\"label\":\"战位IP用户\",\"value\":\"2\"}]")
private String type;
@Schema(title = "status")
@TbField(field = "status", header = "状态", search = true, searchType = TableSearchType.exact,
type = TableFieldType.select, option = "[{\"label\":\"正常\",\"value\":\"1\"},{\"label\":\"禁用\",\"value\":\"0\"}]")
private String status;
@Schema(title = "真实姓名")
@TbField(field = "realName", header = "真实姓名",
type = TableFieldType.text, rule=@TbFieldRule(required = true, minLength = 2, maxLength = 20, desc = "真实姓名不能为空，且长度介于2-20个字符之间"))
private String realName;
@Schema(title = "电话号码")
@TbField(field = "tel", header = "电话号码",
type = TableFieldType.text, rule=@TbFieldRule(reg = "^(13[0-9]|14[01456879]|15[0-3,5-9]|16[2567]|17[0-8]|18[0-9]|19[0-3,5-9])\\d{8}$", desc = "电话号码需符规则"))
@Desensitization(dataType = PrivacyTypeEnum.MOBILE_PHONE)
private String tel;
@Schema(title = "邮箱")
@TbField(field = "email", header = "邮箱",
type = TableFieldType.text, rule=@TbFieldRule(reg = "^\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*.\\w+([-.]\\w+)*$", desc = "邮箱需符规则"))
@Desensitization(dataType = PrivacyTypeEnum.EMAIL)
private String email;
@Schema(title = "部门")
@TbField(field = "orgIds", header = "部门",
type = TableFieldType.multiSelect, selectUrl = "/api/v1/orgs/combobox/tree?status=1")
@TableField(exist = false)
private List<Integer> orgIds;
@Schema(title = "角色")
@TbField(field = "roleIds", header = "角色",
type = TableFieldType.multiSelect, selectUrl = "/api/v1/roles/combobox?status=1")
@TableField(exist = false)
private List<Integer> roleIds;
@Schema(title = "岗位")
@TbField(field = "postIds", header = "岗位",
type = TableFieldType.multiSelect, selectUrl = "/api/v1/posts/combobox?status=1")
@TableField(exist = false)
private List<Integer> postIds;
}七、脱敏效果
下面是测试的结果：
下面是一个查询接口返回带User实体的结果：
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