Java怎么通过注解实现接口输出时数据脱敏

小编给大家分享一下Java怎么通过注解实现接口输出时数据脱敏，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！

Java注解实现接口输出数据脱敏

在后台管理中，对于手机号，身份证，姓名这些数据不允许所有人都能看，这时候我们要对相对数据进行脱敏.

先声明了一个注解

通过对相关接口函数进行声明，以及配置需要脱敏的参数类型SecretTypeEnum，默认脱敏手机号

@Documented@Target(ElementType.METHOD)@Retention(RetentionPolicy.RUNTIME)public @interface SecretManage {    SecretTypeEnum[] value() default {SecretTypeEnum.MOBILE};}

我们目前只支持对手机号

身份证，用户姓名三个字段进行脱敏, 字段名称必须符合枚举的desc值

package com.test.base.enums;import com.fasterxml.jackson.annotation.JsonValue;public enum SecretTypeEnum implements BaseEnum {    MOBILE(0, "mobile"),    NAME(1, "name"),    ID(2, "identity")    ;    @JsonValue    private int code;    private String desc;    public String getDesc() {        return desc;    }    SecretTypeEnum(int code, String desc) {        this.code = code;        this.desc = desc;    }    @Override    public int code() {        return code;    }    public static SecretTypeEnum checkParam(String paramName) {        SecretTypeEnum[] values = values();        for (int i = 0; i < values.length; i++) {            if (paramName.equals(values[i].getDesc())) {                return values[i];            }        }        return null;    }}

然后我们需要实现注解的拦截功能

@Order(1)@Aspect@Componentpublic class SecretManageAspect {    @Pointcut("@annotation(com.test.base.annotations.SecretManage)")    public void pointCut() {    }    @Around("pointCut() && @annotation(secretManage)")    public Object secretManageAround(ProceedingJoinPoint joinPoint, SecretManage secretManage) throws Throwable {        Class returnType = ((MethodSignature) joinPoint.getSignature()).getReturnType();        Object invokeResult = joinPoint.proceed();        if (returnType.isInstance(invokeResult)) {            returnType.cast(invokeResult);        }        Field[] fields = returnType.getDeclaredFields();        List<SecretTypeEnum> annotationSecretTypeEnums = Arrays.asList(secretManage.value());        for (Field field : fields) {            String fieldName = field.getName();            Class<?> paramType = field.getType();            System.out.println("字段名称:" + fieldName);            SecretTypeEnum secretTypeEnum = SecretTypeEnum.checkParam(fieldName);            long count = annotationSecretTypeEnums.stream().filter(item -> item.equals(secretTypeEnum)).count();            if (secretTypeEnum != null && count > 0) {                fieldName = fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);                // 获取到setter方法                Method setMethod = returnType.getMethod("set" + fieldName, new Class[]{paramType});                // 获取到getter方法                Method getMethod = returnType.getMethod("get" + fieldName);                // 执行getter方法                Object value = getMethod.invoke(invokeResult);                this.invokeSetter(setMethod, invokeResult, secretTypeEnum, value);            }        }        return invokeResult;    }        private void invokeSetter(Method setterMethod, Object invokeResult, SecretTypeEnum secretTypeEnum, Object value)        throws InvocationTargetException, IllegalAccessException {        switch (secretTypeEnum) {            case NAME:                setterMethod.invoke(invokeResult, SecretUtil.nameSecret(value.toString()));                break;            case MOBILE:                setterMethod.invoke(invokeResult, SecretUtil.mobileSecret(value.toString()));                break;            case ID:                setterMethod.invoke(invokeResult, SecretUtil.idNoSecret(value.toString()));                break;        }    }}

上面我们就是实现了脱敏的功能，现在我们可以mock接口看看结果了，

我对默认声明和脱敏名称和手机号进行了测试

@GetMapping("/test-secret")//@SecretManage(value = {SecretTypeEnum.NAME, SecretTypeEnum.MOBILE})@SecretManagepublic User getSecretUser() {User user = new User();user.setId(1);user.setMobile("13715166409");user.setName("张志新");user.setIdentity("370283790911703");return user;}

下面是测试结果

Java注解的字段脱敏处理

有这样一个场景，系统中可以出现敏感的数据，在打印日志的时候，我们并不希望打印出现，这样，我们使用自己定义注解，来解决这个问题。

定义需要脱敏的字段规则

import java.lang.reflect.Array;import java.lang.reflect.Field;import java.lang.reflect.Method;import java.util.Collection;import java.util.HashSet;import java.util.Iterator;import java.util.Map;import java.util.Map.Entry;import java.util.Set; import org.apache.commons.lang.ArrayUtils;import org.apache.commons.lang.StringUtils; import com.alibaba.fastjson.JSON;import com.alibaba.fastjson.serializer.SerializerFeature;import com.google.gson.Gson;import com.ucf.platform.framework.core.annotation.SensitiveInfo;import com.ucf.platform.framework.core.log.UcfLogger;import com.ucf.platform.framework.core.log.UcfLoggerFactory; public final class SensitiveInfoUtils {     private final static UcfLogger logger = UcfLoggerFactory.getLogger(SensitiveInfoUtils.class);         public static String chineseName(String fullName) {        if (StringUtils.isBlank(fullName)) {            return "";        }        String name = StringUtils.left(fullName, 1);        return StringUtils.rightPad(name, StringUtils.length(fullName), "*");    }         public static String chineseName(String familyName, String givenName) {        if (StringUtils.isBlank(familyName) || StringUtils.isBlank(givenName)) {            return "";        }        return chineseName(familyName + givenName);    }         public static String idCardNum(String id) {        if (StringUtils.isBlank(id)) {            return "";        }        String num = StringUtils.right(id, 4);        return StringUtils.leftPad(num, StringUtils.length(id), "*");    }         public static String fixedPhone(String num) {        if (StringUtils.isBlank(num)) {            return "";        }        return StringUtils.leftPad(StringUtils.right(num, 4), StringUtils.length(num), "*");    }         public static String mobilePhone(String num) {        if (StringUtils.isBlank(num)) {            return "";        }        return StringUtils.left(num, 3).concat(StringUtils.removeStart(StringUtils.leftPad(StringUtils.right(num, 4), StringUtils.length(num), "*"), "***"));    }         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, "*");    }         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)));    }         public static String bankCard(String cardNum) {        if (StringUtils.isBlank(cardNum)) {            return "";        }        return StringUtils.left(cardNum, 6).concat(StringUtils.removeStart(StringUtils.leftPad(StringUtils.right(cardNum, 4), StringUtils.length(cardNum), "*"), "******"));    }         public static String cnapsCode(String code) {        if (StringUtils.isBlank(code)) {            return "";        }        return StringUtils.rightPad(StringUtils.left(code, 2), StringUtils.length(code), "*");    }         public static String getJson(Object javaBean) {        String json = null;        if (null != javaBean) {            Class<? extends Object> raw = javaBean.getClass();            try {                if (raw.isInterface())                    return json;                Gson g = new Gson();                Object clone = g.fromJson(g.toJson(javaBean, javaBean.getClass()), javaBean.getClass());                Set<Integer> referenceCounter = new HashSet<Integer>();                SensitiveInfoUtils.replace(SensitiveInfoUtils.findAllField(raw), clone, referenceCounter);                json = JSON.toJSONString(clone, SerializerFeature.WriteMapNullValue, SerializerFeature.WriteNullListAsEmpty);                referenceCounter.clear();                referenceCounter = null;            } catch (Throwable e) {                logger.error("SensitiveInfoUtils.getJson() ERROR", e);            }        }        return json;    }     private static Field[] findAllField(Class<?> clazz) {        Field[] fileds = clazz.getDeclaredFields();        while (null != clazz.getSuperclass() && !Object.class.equals(clazz.getSuperclass())) {            fileds = (Field[]) ArrayUtils.addAll(fileds, clazz.getSuperclass().getDeclaredFields());            clazz = clazz.getSuperclass();        }        return fileds;    }    private static void replace(Field[] fields, Object javaBean, Set<Integer> referenceCounter) throws IllegalArgumentException, IllegalAccessException {        if (null != fields && fields.length > 0) {            for (Field field : fields) {                field.setAccessible(true);                if (null != field && null != javaBean) {                    Object value = field.get(javaBean);                    if (null != value) {                        Class<?> type = value.getClass();                        // 1.处理子属性，包括集合中的                        if (type.isArray()) {                            int len = Array.getLength(value);                            for (int i = 0; i < len; i++) {                                Object arrayObject = Array.get(value, i);                                SensitiveInfoUtils.replace(SensitiveInfoUtils.findAllField(arrayObject.getClass()), arrayObject, referenceCounter);                            }                        } else if (value instanceof Collection<?>) {                            Collection<?> c = (Collection<?>) value;                            Iterator<?> it = c.iterator();                            while (it.hasNext()) {                                Object collectionObj = it.next();                                SensitiveInfoUtils.replace(SensitiveInfoUtils.findAllField(collectionObj.getClass()), collectionObj, referenceCounter);                            }                        } else if (value instanceof Map<?, ?>) {                            Map<?, ?> m = (Map<?, ?>) value;                            Set<?> set = m.entrySet();                            for (Object o : set) {                                Entry<?, ?> entry = (Entry<?, ?>) o;                                Object mapVal = entry.getValue();                                SensitiveInfoUtils.replace(SensitiveInfoUtils.findAllField(mapVal.getClass()), mapVal, referenceCounter);                            }                        } else if (!type.isPrimitive()                                   && !StringUtils.startsWith(type.getPackage().getName(), "javax.")                                   && !StringUtils.startsWith(type.getPackage().getName(), "java.")                                   && !StringUtils.startsWith(field.getType().getName(), "javax.")                                   && !StringUtils.startsWith(field.getName(), "java.")                                   && referenceCounter.add(value.hashCode())) {                            SensitiveInfoUtils.replace(SensitiveInfoUtils.findAllField(type), value, referenceCounter);                        }                    }                    // 2. 处理自身的属性                    SensitiveInfo annotation = field.getAnnotation(SensitiveInfo.class);                    if (field.getType().equals(String.class) && null != annotation) {                        String valueStr = (String) value;                        if (StringUtils.isNotBlank(valueStr)) {                            switch (annotation.type()) {                                case CHINESE_NAME: {                                    field.set(javaBean, SensitiveInfoUtils.chineseName(valueStr));                                    break;                                }                                case ID_CARD: {                                    field.set(javaBean, SensitiveInfoUtils.idCardNum(valueStr));                                    break;                                }                                case FIXED_PHONE: {                                    field.set(javaBean, SensitiveInfoUtils.fixedPhone(valueStr));                                    break;                                }                                case MOBILE_PHONE: {                                    field.set(javaBean, SensitiveInfoUtils.mobilePhone(valueStr));                                    break;                                }                                case ADDRESS: {                                    field.set(javaBean, SensitiveInfoUtils.address(valueStr, 4));                                    break;                                }                                case EMAIL: {                                    field.set(javaBean, SensitiveInfoUtils.email(valueStr));                                    break;                                }                                case BANK_CARD: {                                    field.set(javaBean, SensitiveInfoUtils.bankCard(valueStr));                                    break;                                }                                case CNAPS_CODE: {                                    field.set(javaBean, SensitiveInfoUtils.cnapsCode(valueStr));                                    break;                                }                            }                        }                    }                }            }        }    }   //----------------------------------------------------------------------------------------------    public static Method [] findAllMethod(Class<?> clazz){        Method [] methods= clazz.getMethods();        return methods;    }    //----------------------------------------------------------------------------------------------    public static enum SensitiveType {                CHINESE_NAME,                 ID_CARD,                FIXED_PHONE,                MOBILE_PHONE,                ADDRESS,                EMAIL,                BANK_CARD,                CNAPS_CODE;    }}

声明注解

import java.lang.annotation.Documented;import java.lang.annotation.ElementType;import java.lang.annotation.Inherited;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target; import com.ucf.platform.framework.core.util.SensitiveInfoUtils; @Target({ElementType.FIELD,ElementType.METHOD})@Retention(RetentionPolicy.RUNTIME)@Inherited@Documentedpublic @interface SensitiveInfo {     public SensitiveInfoUtils.SensitiveType type() ;}

测试

public class JavaBeanA {        public JavaBeanA(String name,String id){            }        @SensitiveInfo(type=SensitiveType.CHINESE_NAME)    private String name = "A先生";        private JavaBeanB b;        private Date date;        private List<JavaBeanB> list;        private Map<String,JavaBeanB> map;     public String getName() {        return name;    }     public void setName(String name) {        this.name = name;    }     public JavaBeanB getB() {        return b;    }     public void setB(JavaBeanB b) {        this.b = b;    }     public List<JavaBeanB> getList() {        return list;    }     public void setList(List<JavaBeanB> list) {        this.list = list;    }     public Map<String, JavaBeanB> getMap() {        return map;    }     public void setMap(Map<String, JavaBeanB> map) {        this.map = map;    }     public Date getDate() {        return date;    }     public void setDate(Date date) {        this.date = date;    }    }

public class JavaBeanB {    @SensitiveInfo(type=SensitiveType.CHINESE_NAME)    private String name = "B先生";        private JavaBeanA a;        private Set<JavaBeanA> list;        private Map<String,JavaBeanA> map;     public String getName() {        return name;    }     public void setName(String name) {        this.name = name;    }     public JavaBeanA getA() {        return a;    }     public void setA(JavaBeanA a) {        this.a = a;    }     public Set<JavaBeanA> getList() {        return list;    }     public void setList(Set<JavaBeanA> list) {        this.list = list;    }     public Map<String, JavaBeanA> getMap() {        return map;    }     public void setMap(Map<String, JavaBeanA> map) {        this.map = map;    }}

public class SensitiveInfoUtilsTest {            @Test    public void testChineseNameString() {        System.out.println(SensitiveInfoUtils.chineseName("李先生"));    }         @Test    public void testChineseNameStringString() {        System.out.println(SensitiveInfoUtils.chineseName("李","雷"));    }         @Test    public void testIdCardNum() {        System.out.println(SensitiveInfoUtils.idCardNum("1103541983073188711"));    }         @Test    public void testFixedPhone() {        System.out.println(SensitiveInfoUtils.fixedPhone("01077482277"));    }         @Test    public void testMobilePhone() {        System.out.println(SensitiveInfoUtils.mobilePhone("13777446578"));    }         @Test    public void testAddress() {        System.out.println(SensitiveInfoUtils.address("北京朝阳区酒仙桥中路26号院4号楼人人大厦",8));    }         @Test    public void testEmail() {        System.out.println(SensitiveInfoUtils.email("66374777@qq.com"));    }         @Test    public void testBankCard() {        System.out.println(SensitiveInfoUtils.bankCard("6228480402565890018"));    }         @Test    public void testCnapsCode() {        System.out.println(SensitiveInfoUtils.cnapsCode("102100029679"));    }         @Test    public void testGetJson() {//        ThreadPoolExecutor consumeExecutor = new ThreadPoolExecutor(30, 30 + 10, 5, TimeUnit.SECONDS, new ArrayBlockingQueue<Runnable>(30 + 10), new ThreadFactory() {//            @Override//            public Thread newThread(Runnable r) {//                Thread myThread = new Thread(r);//                myThread.setName("TT");//                return myThread;//            }//        }, new ThreadPoolExecutor.CallerRunsPolicy());//        while (true) {//            consumeExecutor.execute(new Runnable() {//                @Override//                public void run() {}//            });//        }         JavaBeanA a1 = new JavaBeanA("","");        JavaBeanA a2 = new JavaBeanA("","");        JavaBeanB b1 = new JavaBeanB();        a1.setB(b1);//        a1.setDate(new Date());                List<JavaBeanB> a1l = new ArrayList<JavaBeanB>();        a1l.add(b1);        a1.setList(a1l);        Map<String, JavaBeanB> a1m = new HashMap<String, JavaBeanB>();        a1m.put("b1", b1);        a1.setMap(a1m);         b1.setA(a2);        Set<JavaBeanA> b1l = new HashSet<JavaBeanA>();        b1.setList(b1l);        Map<String, JavaBeanA> b1m = new HashMap<String, JavaBeanA>();        b1m.put("a2", a2);        b1.setMap(b1m);        long t = System.currentTimeMillis();        System.out.println(t);        System.out.println(SensitiveInfoUtils.getJson(a1));        System.out.println(System.currentTimeMillis()-t);        System.out.println(JSON.toJSON(a1));        System.out.println(System.currentTimeMillis()-t);        }}

测试结果：

李**
李*
***************8711
*******2277
137****6578
北京朝阳区酒仙桥中路26号********
6*******@qq.com
622848*********0018
10**********
1443435915750
{"b":{"a":{"b":null,"date":null,"list":[],"map":null,"name":"A**"},"list":[],"map":{"a2":{"b":null,"date":null,"list":[],"map":null,"name":"A**"}},"name":"B**"},"date":null,"list":[{"a":{"b":null,"date":null,"list":[],"map":null,"name":"A**"},"list":[],"map":{"a2":{"b":null,"date":null,"list":[],"map":null,"name":"A**"}},"name":"B**"}],"map":{"b1":{"a":{"b":null,"date":null,"list":[],"map":null,"name":"A**"},"list":[],"map":{"a2":{"b":null,"date":null,"list":[],"map":null,"name":"A**"}},"name":"B**"}},"name":"A**"}
289
{"b":{"a":{"name":"A先生"},"list":[],"map":{"a2":{"name":"A先生"}},"name":"B先生"},"list":[{"a":{"name":"A先生"},"list":[],"map":{"a2":{"name":"A先生"}},"name":"B先生"}],"map":{"b1":{"a":{"name":"A先生"},"list":[],"map":{"a2":{"name":"A先生"}},"name":"B先生"}},"name":"A先生"}
300

使用了google 的API，可以使用maven在添加，配置如下：

<!-- gson -->  <dependency>   <groupId>com.google.code.gson</groupId>   <artifactId>gson</artifactId>  </dependency>

说明：在需要脱敏的字段上使用定义好的注解，在具体的使用时用SensitiveInfoUtils.getJson(a1)，如果不需要脱敏的输出，尽量不要打印JSON,使用对象的toString()输出。效率更高。

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