Spring Boot+Spring Security+JWT實(shí)現(xiàn)單點(diǎn)登錄

一.概念

1.1.SSO

介紹：

• 單點(diǎn)登錄(SingleSignOn，SSO)，當(dāng)用戶在身份認(rèn)證服務(wù)器上登錄一次以后，即可獲得訪問(wèn)單點(diǎn)登錄系統(tǒng)中其他關(guān)聯(lián)系統(tǒng)和應(yīng)用軟件的權(quán)限，同時(shí)這種實(shí)現(xiàn)是不需要管理員對(duì)用戶的登錄狀態(tài)或其他信息進(jìn)行修改的，這意味著在多個(gè)應(yīng)用系統(tǒng)中，用戶只需一次登錄就可以訪問(wèn)所有相互信任的應(yīng)用系統(tǒng)。這種方式減少了由登錄產(chǎn)生的時(shí)間消耗，輔助了用戶管理，是目前比較流行的一種分布式登錄方式。

SSO實(shí)現(xiàn)流程：

• 在分布式項(xiàng)目中，每臺(tái)服務(wù)器都有各自獨(dú)立的session，而這些session之間是無(wú)法直接共享資源的，所以，session通常不能被作為單點(diǎn)登錄的技術(shù)方案。最合理的單點(diǎn)登錄方案流程如下圖所示：
  

單點(diǎn)登錄的實(shí)現(xiàn)分2部分：

• 用戶認(rèn)證：客戶端向認(rèn)證服務(wù)器發(fā)起認(rèn)證請(qǐng)求，認(rèn)證服務(wù)器給客戶端返回令牌token， 主要在認(rèn)證服務(wù)器中完成，即圖中的A系統(tǒng)，注意認(rèn)證服務(wù)器只能有一個(gè)
• 身份校驗(yàn)： 客戶端攜帶token去訪問(wèn)其他資源服務(wù)器時(shí)，在資源服務(wù)器中要對(duì)token的真?zhèn)芜M(jìn)行檢驗(yàn)，主要在資源服務(wù)器中完成，即圖中的B系統(tǒng)，這里B系統(tǒng)可以有很多個(gè)

1.2.JWT

什么是JWT

• 【JavaWeb】關(guān)于JWT做認(rèn)證授權(quán)的十萬(wàn)個(gè)理由(JSON Web Token)

1.3.RSA

非對(duì)稱加密算法

• 服務(wù)提供方生成兩把密鑰（公鑰和私鑰）。私鑰隱秘保存，公鑰公開,下發(fā)給信任客戶端
• 調(diào)用方獲取提供方的公鑰，然后用它對(duì)信息加密。
• 提供方接收到調(diào)用加密后的信息后，用私鑰解密。

RSA算法

• 一直是最廣為使用的"非對(duì)稱加密算法"。毫不夸張地說(shuō)，只要有計(jì)算機(jī)網(wǎng)絡(luò)的地方，就有RSA算法。這種算法非常可靠，密鑰越長(zhǎng)，它就越難破解。根據(jù)已經(jīng)披露的文獻(xiàn)，目前被破解的最長(zhǎng)RSA密鑰是768個(gè)二進(jìn)制位。也就是說(shuō)，長(zhǎng)度超過(guò)768位的密鑰，還無(wú)法破解（至少?zèng)]人公開宣布）。因此可以認(rèn)為，1024位的RSA密鑰基本安全，2048位的密鑰極其安全。

RSA使用流程：

• 生成兩把密鑰：私鑰和公鑰，私鑰保存起來(lái)，公鑰可以下發(fā)給信任客戶端
  • 私鑰加密，持有私鑰或公鑰才可以解密
  • 公鑰加密，持有私鑰才可解密
• 因此，認(rèn)證服務(wù)一般存放私鑰和公鑰，而資源服務(wù)一般存放公鑰。私鑰負(fù)責(zé)加密，公鑰負(fù)責(zé)解密。

二.思路

1.分析集中式認(rèn)證流程

• 用戶認(rèn)證：使用UsernamePasswordAuthenticationFilter過(guò)濾器中attemptAuthentication()實(shí)現(xiàn)認(rèn)證功能，該過(guò)濾器父類中successfulAuthentication()實(shí)現(xiàn)認(rèn)證成功后的操作。
• 身份校驗(yàn)：使用BasicAuthenticationFilter過(guò)濾器中doFilterInternal()驗(yàn)證是否登錄，以決定能否進(jìn)入后續(xù)過(guò)濾器。

2.分析分布式認(rèn)證流程

• 用戶認(rèn)證：分布式項(xiàng)目多數(shù)是前后端分離的架構(gòu)，需要修改UsernamePasswordAuthenticationFilter過(guò)濾器中attemptAuthentication()，讓其能夠接收請(qǐng)求體。另外，默認(rèn)successfulAuthentication()在認(rèn)證通過(guò)后，是把用戶信息直接放入session就完事了

  • 處理方式：修改successfulAuthentication()，在認(rèn)證通過(guò)后生成token并返回給用戶。

• 身份校驗(yàn)： 原來(lái)BasicAuthenticationFilter過(guò)濾器中doFilterInternal()校驗(yàn)用戶是否登錄，就是看session中是否有用戶信息

  • 處理方式：校驗(yàn)邏輯修改為，驗(yàn)證用戶攜帶的token合法，并解析出用戶信息，交給SpringSecurity，以便于后續(xù)的授權(quán)功能可以正常使用。

//Header.Payload.Signature
HMACSHA245(base64UrlEncode(header)+"."+base64UrlEncode(payload),secret)

三.工程介紹

1.介紹父工程

因?yàn)楸景咐枰獎(jiǎng)?chuàng)建多個(gè)系統(tǒng)，所以我們使用maven聚合工程來(lái)實(shí)現(xiàn)，首先創(chuàng)建一個(gè)父工程，導(dǎo)入springboot的父依賴即可

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.2</version>
        <relativePath/>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.oyjp</groupId>
    <artifactId>spring-boot-security-sso-parent</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>pom</packaging>
    <description>通用模塊</description>

    <modules>
        <module>sso-common</module><!--通用子模塊-->
        <module>sso-auth-server</module><!--認(rèn)證服務(wù)子模塊-->
        <module>sso-source-product</module><!--產(chǎn)品資源服務(wù)子模塊-->
        <module>sso-source-order</module><!--訂單資源服務(wù)子模塊-->
    </modules>

該工程由四個(gè)子模塊組成，一個(gè)認(rèn)證服務(wù)模塊，一個(gè)通用模塊，一個(gè)訂單資源模塊，一個(gè)產(chǎn)品資源模塊

2.導(dǎo)入數(shù)據(jù)庫(kù)

DROP DATABASE IF EXISTS `security_test2`;

CREATE DATABASE `security_test2`;

USE `security_test2`;

DROP TABLE IF EXISTS `sys_role`;

CREATE TABLE `sys_role` (
  `id` INT(11) NOT NULL AUTO_INCREMENT COMMENT '角色編號(hào)',
  `name` VARCHAR(32) NOT NULL COMMENT '角色名稱',
  `desc` VARCHAR(32) NOT NULL COMMENT '角色描述',
  PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8;

INSERT  INTO `sys_role`(`id`,`name`,`desc`) VALUES (1,'ROLE_USER','用戶權(quán)限');
INSERT  INTO `sys_role`(`id`,`name`,`desc`) VALUES (2,'ROLE_ADMIN','管理權(quán)限');
INSERT  INTO `sys_role`(`id`,`name`,`desc`) VALUES (3,'ROLE_PRODUCT','產(chǎn)品權(quán)限');
INSERT  INTO `sys_role`(`id`,`name`,`desc`) VALUES (4,'ROLE_ORDER','訂單權(quán)限');

DROP TABLE IF EXISTS `sys_user`;

CREATE TABLE `sys_user` (
  `id` INT(11) NOT NULL AUTO_INCREMENT COMMENT '用戶編號(hào)',
  `username` VARCHAR(32) NOT NULL COMMENT '用戶名稱',
  `password` VARCHAR(128) NOT NULL COMMENT '用戶密碼',
  `status` INT(1) NOT NULL DEFAULT '1' COMMENT '用戶狀態(tài)（0：關(guān)閉、1：開啟）',
  PRIMARY KEY (`id`)
) ENGINE=INNODB AUTO_INCREMENT=4 DEFAULT CHARSET=utf8;

INSERT  INTO `sys_user`(`id`,`username`,`password`,`status`) VALUES (1,'zhangsan','$2a$10$M7fmKpMZEkkzrTBiKie.EeAKZhQDrWAltpCA1y/py5AU/8lyiNB8y',0);
INSERT  INTO `sys_user`(`id`,`username`,`password`,`status`) VALUES (2,'lisi','$2a$10$M7fmKpMZEkkzrTBiKie.EeAKZhQDrWAltpCA1y/py5AU/8lyiNB8y',1);
INSERT  INTO `sys_user`(`id`,`username`,`password`,`status`) VALUES (3,'wangwu','$2a$10$M7fmKpMZEkkzrTBiKie.EeAKZhQDrWAltpCA1y/py5AU/8lyiNB8y',2);
INSERT  INTO `sys_user`(`id`,`username`,`password`,`status`) VALUES (4,'zhaoliu','$2a$10$M7fmKpMZEkkzrTBiKie.EeAKZhQDrWAltpCA1y/py5AU/8lyiNB8y',3);
INSERT  INTO `sys_user`(`id`,`username`,`password`,`status`) VALUES (5,'xiaoqi','$2a$10$M7fmKpMZEkkzrTBiKie.EeAKZhQDrWAltpCA1y/py5AU/8lyiNB8y',4);

DROP TABLE IF EXISTS `sys_user_role`;

CREATE TABLE `sys_user_role` (
  `uid` INT(11) NOT NULL COMMENT '用戶編號(hào)',
  `rid` INT(11) NOT NULL COMMENT '角色編號(hào)',
  PRIMARY KEY (`uid`,`rid`)
) ENGINE=INNODB DEFAULT CHARSET=utf8;

INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (1,1);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (1,3);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (2,1);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (2,4);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (3,1);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (3,2);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (3,3);
INSERT  INTO `sys_user_role`(`uid`,`rid`) VALUES (3,4);

四 通用模塊

1.導(dǎo)入依賴

        <!--JWT-->
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt-api</artifactId>
            <version>0.11.2</version>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt-impl</artifactId>
            <version>0.11.2</version>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt-jackson</artifactId>
            <version>0.11.2</version>
            <scope>runtime</scope>
        </dependency>

        <!--Jackson-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>2.11.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.11.4</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>2.11.4</version>
        </dependency>

        <!--JodaTime-->
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.10.9</version>
        </dependency>

        <!--Lombok-->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.16</version>
        </dependency>

        <!--日志包-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>

        <!--測(cè)試包-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>

        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-core</artifactId>
        </dependency>

2.統(tǒng)一格式

2.1.統(tǒng)一載荷對(duì)象

/**
 * 為了方便后期獲取token中的用戶信息，將token中載荷部分單獨(dú)封裝成一個(gè)對(duì)象
 * @author JianpengOuYang
 */
@Data
public class Payload<T> implements Serializable {
    private String id;
    private T userInfo;
    private Date expiration;
}

2.2.統(tǒng)一返回結(jié)果

/**
 * 統(tǒng)一處理返回結(jié)果
 * @author JianpengOuYang
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Result implements Serializable {
    private Integer code;
    private String msg;
    private Object data;
}

3.常用工具

3.1.Json工具類

/**
 * 對(duì)Jackson中的方法進(jìn)行了簡(jiǎn)單封裝
 * @author JianpengOuYang
 */
public class JsonUtils {
    private static final Logger logger = LoggerFactory.getLogger(JsonUtils.class);
    private static final ObjectMapper mapper = new ObjectMapper();

    /**
     * 將指定對(duì)象序列化為一個(gè)json字符串
     *
     * @param obj 指定對(duì)象
     * @return 返回一個(gè)json字符串
     */
    public static String toString(Object obj) {
        if (obj == null) {
            return null;
        }
        if (obj.getClass() == String.class) {
            return (String) obj;
        }
        try {
            return mapper.writeValueAsString(obj);
        } catch (JsonProcessingException e) {
            logger.error("json序列化出錯(cuò)：" + obj, e);
            return null;
        }
    }

    /**
     * 將指定json字符串解析為指定類型對(duì)象
     *
     * @param json   json字符串
     * @param tClass 指定類型
     * @return 返回一個(gè)指定類型對(duì)象
     */
    public static <T> T toBean(String json, Class<T> tClass) {
        try {
            return mapper.readValue(json, tClass);
        } catch (IOException e) {
            logger.error("json解析出錯(cuò)：" + json, e);
            return null;
        }
    }

    /**
     * 將指定輸入流解析為指定類型對(duì)象
     *
     * @param inputStream 輸入流對(duì)象
     * @param tClass      指定類型
     * @return 返回一個(gè)指定類型對(duì)象
     */
    public static <T> T toBean(InputStream inputStream, Class<T> tClass) {
        try {
            return mapper.readValue(inputStream, tClass);
        } catch (IOException e) {
            logger.error("json解析出錯(cuò)：" + inputStream, e);
            return null;
        }
    }

    /**
     * 將指定json字符串解析為指定類型集合
     *
     * @param json   json字符串
     * @param eClass 指定元素類型
     * @return 返回一個(gè)指定類型集合
     */
    public static <E> List<E> toList(String json, Class<E> eClass) {
        try {
            return mapper.readValue(json, mapper.getTypeFactory().constructCollectionType(List.class, eClass));
        } catch (IOException e) {
            logger.error("json解析出錯(cuò)：" + json, e);
            return null;
        }
    }

    /**
     * 將指定json字符串解析為指定鍵值對(duì)類型集合
     *
     * @param json   json字符串
     * @param kClass 指定鍵類型
     * @param vClass 指定值類型
     * @return 返回一個(gè)指定鍵值對(duì)類型集合
     */
    public static <K, V> Map<K, V> toMap(String json, Class<K> kClass, Class<V> vClass) {
        try {
            return mapper.readValue(json, mapper.getTypeFactory().constructMapType(Map.class, kClass, vClass));
        } catch (IOException e) {
            logger.error("json解析出錯(cuò)：" + json, e);
            return null;
        }
    }

    /**
     * 將指定json字符串解析為一個(gè)復(fù)雜類型對(duì)象
     *
     * @param json json字符串
     * @param type 復(fù)雜類型
     * @return 返回一個(gè)復(fù)雜類型對(duì)象
     */
    public static <T> T nativeRead(String json, TypeReference<T> type) {
        try {
            return mapper.readValue(json, type);
        } catch (IOException e) {
            logger.error("json解析出錯(cuò)：" + json, e);
            return null;
        }
    }
}

3.2.Jwt工具類

/**
 * 生成token以及校驗(yàn)token相關(guān)方法
 *
 * @author JianpengOuYang
 */
public class JwtUtils {
    private static final String JWT_PAYLOAD_USER_KEY = "user";

    private static String createJTI() {
        return new String(Base64.getEncoder().encode(UUID.randomUUID().toString().getBytes()));
    }

    /**
     * 私鑰加密token
     *
     * @param userInfo   載荷中的數(shù)據(jù)
     * @param privateKey 私鑰
     * @param expire     過(guò)期時(shí)間，單位分鐘
     * @return JWT
     */
    public static String generateTokenExpireInMinutes(Object userInfo, PrivateKey privateKey, int expire) {
        return Jwts.builder()
                .claim(JWT_PAYLOAD_USER_KEY, JsonUtils.toString(userInfo))//payload
                .setId(createJTI())//JID
                .setExpiration(DateTime.now().plusMinutes(expire).toDate())//過(guò)期時(shí)間
                .signWith(privateKey, SignatureAlgorithm.RS256)//Signature,使用privateKey作為密鑰
                .compact();
    }

    /**
     * 私鑰加密token
     *
     * @param userInfo   載荷中的數(shù)據(jù)
     * @param privateKey 私鑰
     * @param expire     過(guò)期時(shí)間，單位秒
     * @return JWT
     */
    public static String generateTokenExpireInSeconds(Object userInfo, PrivateKey privateKey, int expire) {
        return Jwts.builder()
                .claim(JWT_PAYLOAD_USER_KEY, JsonUtils.toString(userInfo))
                .setId(createJTI())
                .setExpiration(DateTime.now().plusSeconds(expire).toDate())
                .signWith(privateKey, SignatureAlgorithm.RS256)
                .compact();
    }

    /**
     * 公鑰解析token
     *
     * @param token     用戶請(qǐng)求中的token
     * @param publicKey 公鑰
     * @return Jws<Claims>
     */
    private static Jws<Claims> parserToken(String token, PublicKey publicKey) {
        return Jwts.parserBuilder()
                .setSigningKey(publicKey)
                .build()
                .parseClaimsJws(token);
    }

    /**
     * 獲取token中的用戶信息
     *
     * @param token     用戶請(qǐng)求中的令牌
     * @param publicKey 公鑰
     * @return 用戶信息
     */
    public static <T> Payload<T> getInfoFromToken(String token, PublicKey publicKey, Class<T> userType) {
        Jws<Claims> claimsJws = parserToken(token, publicKey);
        Claims body = claimsJws.getBody();
        Payload<T> claims = new Payload<>();
        claims.setId(body.getId());//JID
        claims.setUserInfo(JsonUtils.toBean(body.get(JWT_PAYLOAD_USER_KEY).toString(), userType));//獲取payload中的用戶信息
        claims.setExpiration(body.getExpiration());//獲取過(guò)期時(shí)間
        return claims;
    }

    /**
     * 獲取token中的載荷信息
     *
     * @param token     用戶請(qǐng)求中的令牌
     * @param publicKey 公鑰
     * @return 用戶信息
     */
    public static <T> Payload<T> getInfoFromToken(String token, PublicKey publicKey) {
        Jws<Claims> claimsJws = parserToken(token, publicKey);
        Claims body = claimsJws.getBody();
        Payload<T> claims = new Payload<>();
        claims.setId(body.getId());
        claims.setExpiration(body.getExpiration());
        return claims;
    }
}

3.3.Rsa工具類

/**
 * 對(duì)Rsa操作進(jìn)行了簡(jiǎn)單封裝
 *
 * @author JianpengOuYang
 */
public class RsaUtils {
    private static final int DEFAULT_KEY_SIZE = 2048;

    /**
     * 從文件中讀取公鑰
     *
     * @param filename 公鑰保存路徑，相對(duì)于classpath
     * @return 公鑰對(duì)象
     * @throws Exception
     */
    public static PublicKey getPublicKey(String filename) throws Exception {
        byte[] bytes = readFile(filename);
        return getPublicKey(bytes);
    }

    /**
     * 從文件中讀取密鑰
     *
     * @param filename 私鑰保存路徑，相對(duì)于classpath
     * @return 私鑰對(duì)象
     * @throws Exception
     */
    public static PrivateKey getPrivateKey(String filename) throws Exception {
        byte[] bytes = readFile(filename);
        return getPrivateKey(bytes);
    }

    /**
     * 獲取公鑰
     *
     * @param bytes 公鑰的字節(jié)形式
     * @return
     * @throws Exception
     */
    private static PublicKey getPublicKey(byte[] bytes) throws Exception {
        bytes = Base64.getDecoder().decode(bytes);
        X509EncodedKeySpec spec = new X509EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance("RSA");
        return factory.generatePublic(spec);
    }

    /**
     * 獲取密鑰
     *
     * @param bytes 私鑰的字節(jié)形式
     * @return
     * @throws Exception
     */
    private static PrivateKey getPrivateKey(byte[] bytes) throws NoSuchAlgorithmException, InvalidKeySpecException {
        bytes = Base64.getDecoder().decode(bytes);
        PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(bytes);
        KeyFactory factory = KeyFactory.getInstance("RSA");
        return factory.generatePrivate(spec);
    }

    /**
     * 根據(jù)密文，生成rsa公鑰和私鑰，并寫入指定文件
     *
     * @param publicKeyFilename  公鑰文件路徑
     * @param privateKeyFilename 私鑰文件路徑
     * @param secret             生成密鑰的密文
     */
    public static void generateKey(String publicKeyFilename, String privateKeyFilename, String secret, int keySize) throws Exception {
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        SecureRandom secureRandom = new SecureRandom(secret.getBytes());
        keyPairGenerator.initialize(Math.max(keySize, DEFAULT_KEY_SIZE), secureRandom);
        KeyPair keyPair = keyPairGenerator.genKeyPair();
        
        // 獲取公鑰并寫出
        byte[] publicKeyBytes = keyPair.getPublic().getEncoded();
        publicKeyBytes = Base64.getEncoder().encode(publicKeyBytes);
        writeFile(publicKeyFilename, publicKeyBytes);
        
        // 獲取私鑰并寫出
        byte[] privateKeyBytes = keyPair.getPrivate().getEncoded();
        privateKeyBytes = Base64.getEncoder().encode(privateKeyBytes);
        writeFile(privateKeyFilename, privateKeyBytes);
    }

    private static byte[] readFile(String fileName) throws Exception {
        return Files.readAllBytes(new File(fileName).toPath());
    }

    private static void writeFile(String destPath, byte[] bytes) throws IOException {
        File dest = new File(destPath);
        File parentFile = dest.getParentFile();
        if (!parentFile.exists()) {
            parentFile.mkdirs();
        }
        if (!dest.exists()) {
            dest.createNewFile();
        }
        Files.write(dest.toPath(), bytes);
    }
}

3.4.Response/Request工具類

/**
 * 請(qǐng)求工具類
 *
 * @author oyjp
 */
public class RequestUtils {
    private static final Logger logger = LoggerFactory.getLogger(RequestUtils.class);

    /**
     * 從請(qǐng)求對(duì)象的輸入流中獲取指定類型對(duì)象
     *
     * @param request 請(qǐng)求對(duì)象
     * @param clazz   指定類型
     * @return 指定類型對(duì)象
     */
    public static <T> T read(HttpServletRequest request, Class<T> clazz) {
        try {
            return JsonUtils.toBean(request.getInputStream(), clazz);
        } catch (Exception e) {
            logger.error("讀取出錯(cuò)：" + clazz, e);
            return null;
        }
    }
}

/**
 * 響應(yīng)工具類
 *
 * @author oyjp
 */
public class ResponseUtils {
    private static final Logger logger = LoggerFactory.getLogger(ResponseUtils.class);

    /**
     * 向?yàn)g覽器響應(yīng)一個(gè)json字符串
     *
     * @param response 響應(yīng)對(duì)象
     * @param status   狀態(tài)碼
     * @param msg      響應(yīng)信息
     */
    public static void write(HttpServletResponse response, int status, String msg) {
        try {
            response.setHeader("Access-Control-Allow-Origin", "*");
            response.setHeader("Cache-Control", "no-cache");
            response.setCharacterEncoding("UTF-8");
            response.setContentType("application/json");
            response.setStatus(status);
            byte[] bytes = JsonUtils.toString(new Result(status, msg, null)).getBytes();
            OutputStream out = response.getOutputStream();
            out.write(bytes);
        } catch (Exception e) {
            logger.error("響應(yīng)出錯(cuò)：" + msg, e);
        }
    }
}

4.生成密鑰

• 使用密鑰在指定位置生成公鑰/私鑰文件

public class RsaUtilsTest {
    private String publicFile = "E:\\auth_key\\rsa_key.pub";
    private String privateFile = "E:\\auth_key\\rsa_key";
    private String secret = "JianpengOuYangSecret";

    @Test
    public void generateKey() throws Exception {
        RsaUtils.generateKey(publicFile, privateFile, secret, 2048);
    }
}

五 認(rèn)證服務(wù)

注意：本章節(jié)所有操作均在sso-auth-server中進(jìn)行。

1.導(dǎo)入依賴

<dependencies>
        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--springSecurity-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <!--mybatis、mysql-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.49</version>
        </dependency>

        <!--引入通用子模塊-->
        <dependency>
            <groupId>com.oyjp</groupId>
            <artifactId>sso-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
</dependencies>

2.創(chuàng)建配置文件

server:
  port: 9001
  servlet:
    application-display-name: sso-auth-server

spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/security_test2?useSSL=false
    username: root
    password: root

mybatis:
  type-aliases-package: com.oyjp.domain
  configuration:
    map-underscore-to-camel-case: true

logging:
  level:
    com.oyjp: debug

#自定義屬性，配置私鑰路徑
rsa:
  key:
    privateKeyPath: E:\auth_key\rsa_key

3.編寫讀取公鑰的配置類

@Data
@ConfigurationProperties(prefix = "rsa.key", ignoreInvalidFields = true)
public class RsaKeyProperties {
    private String publicKeyPath;
    private String privateKeyPath;

    private PublicKey publicKey;
    private PrivateKey privateKey;

    /**
     * 該方法用于初始化公鑰和私鑰的內(nèi)容
     */
    @PostConstruct
    public void loadRsaKey() throws Exception {
        if (publicKeyPath != null) {
            publicKey = RsaUtils.getPublicKey(publicKeyPath);
        }
        if (privateKeyPath != null) {
            privateKey = RsaUtils.getPrivateKey(privateKeyPath);
        }
    }
}

4.編寫啟動(dòng)類

@SpringBootApplication
@EnableConfigurationProperties(RsaKeyProperties.class) //啟動(dòng)時(shí)加載配置類
public class AuthServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(AuthServerApplication.class, args);
    }
}

5.編寫實(shí)體類

用戶類實(shí)現(xiàn)springSecurity的UserDetails 接口

@Data
public class SysUser implements UserDetails {
    private Integer id;
    private String username;
    private String password;
    private Integer status;
    private List<SysRole> sysRoles;

    @JsonIgnore
    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return sysRoles;
    }

    /**
     * 是否賬號(hào)已過(guò)期
     */
    @JsonIgnore
    @Override
    public boolean isAccountNonExpired() {
        return status != 1;
    }

    /**
     * 是否賬號(hào)已被鎖
     */
    @JsonIgnore
    @Override
    public boolean isAccountNonLocked() {
        return status != 2;
    }

    /**
     * 是否憑證已過(guò)期
     */
    @JsonIgnore
    @Override
    public boolean isCredentialsNonExpired() {
        return status != 3;
    }

    /**
     * 是否賬號(hào)已禁用
     */
    @JsonIgnore
    @Override
    public boolean isEnabled() {
        return status != 4;
    }
}

角色類實(shí)現(xiàn)springSecurity的GrantedAuthority接口

@Data
public class SysRole implements GrantedAuthority {
    private Integer id;
    private String name;
    private String desc;

    @JsonIgnore
    @Override
    public String getAuthority() {
        return name;
    }
}

6.編寫映射接口

查用戶信息

@Mapper
public interface SysUserMapper {
    //根據(jù)用戶名稱查詢所對(duì)應(yīng)的用戶信息
    @Select("select * from `sys_user` where `username` = #{username}")
    @Results({
            //主鍵字段映射，property代表Java對(duì)象屬性，column代表數(shù)據(jù)庫(kù)字段
            @Result(property = "id", column = "id", id = true),
            //普通字段映射，property代表Java對(duì)象屬性，column代表數(shù)據(jù)庫(kù)字段
            @Result(property = "username", column = "username"),
            @Result(property = "password", column = "password"),
            @Result(property = "status", column = "status"),
            //角色列表映射，根據(jù)用戶id查詢?cè)撚脩羲鶎?duì)應(yīng)的角色列表sysRoles
            @Result(property = "sysRoles", column = "id",
                    javaType = List.class,
                    many = @Many(select = "com.oyjp.mapper.SysRoleMapper.findByUid")
            )
    })
    SysUser findByUsername(String username);
}

查角色信息

@Mapper
public interface SysRoleMapper {
    //根據(jù)用戶編號(hào)查詢角色列表
    @Select("select * from `sys_role` where id in (" +
            "  select rid from `sys_user_role` where uid = #{uid}" +
            ")")
    List<SysRole> findByUid(Integer uid);
}

7.編寫服務(wù)接口

實(shí)現(xiàn)springSecurity的UserDetailsService 接口，重新loadUserByUsername()

public interface SysUserDetailsService extends UserDetailsService {

}

@Service
@Transactional
public class SysUserDetailsServiceImpl implements SysUserDetailsService {
    @Autowired(required = false)
    private SysUserMapper sysUserMapper;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //根據(jù)用戶名去數(shù)據(jù)庫(kù)中查詢指定用戶，這就要保證數(shù)據(jù)庫(kù)中的用戶的名稱必須唯一，否則將會(huì)報(bào)錯(cuò)
        SysUser sysUser = sysUserMapper.findByUsername(username);
        //如果沒(méi)有查詢到這個(gè)用戶，說(shuō)明數(shù)據(jù)庫(kù)中不存在此用戶，認(rèn)證失敗，此時(shí)需要拋出用戶賬戶不存在
        if (sysUser == null) {
            throw new UsernameNotFoundException("user not exist.");
        }
        return sysUser;
    }
}

8.編寫認(rèn)證過(guò)濾器

/**
 * 認(rèn)證過(guò)濾器
 *
 */
@Slf4j
public class JwtAuthenticationFilter extends UsernamePasswordAuthenticationFilter {
    private AuthenticationManager authenticationManager;
    private RsaKeyProperties prop;

    public JwtAuthenticationFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        this.authenticationManager = authenticationManager;
        this.prop = prop;
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
        SysUser sysUser = RequestUtils.read(request, SysUser.class);
        assert sysUser != null;
        String username = sysUser.getUsername();
        username = username != null ? username : "";
        String password = sysUser.getPassword();
        password = password != null ? password : "";
        UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(username, password);
        return authenticationManager.authenticate(authRequest);
    }

    /**
     * 認(rèn)證成功所執(zhí)行的方法
     */
    @Override
    protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException {
        SysUser sysUser = new SysUser();
        sysUser.setUsername(authResult.getName());
        sysUser.setSysRoles(new ArrayList(authResult.getAuthorities()));
        String token = JwtUtils.generateTokenExpireInMinutes(sysUser, prop.getPrivateKey(), 24 * 60);
        response.addHeader("Authorization", "Bearer " + token);
        ResponseUtils.write(response, HttpServletResponse.SC_OK, "用戶認(rèn)證通過(guò)！");
    }

    /**
     * 認(rèn)證失敗所執(zhí)行的方法
     */
    @Override
    protected void unsuccessfulAuthentication(HttpServletRequest request, HttpServletResponse response, AuthenticationException failed) throws IOException, ServletException {
        //清理上下文
        SecurityContextHolder.clearContext();
        log.error("AuthenticationException",failed);
        //判斷異常類
        if (failed instanceof InternalAuthenticationServiceException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "認(rèn)證服務(wù)不正常！");
        } else if (failed instanceof UsernameNotFoundException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶賬戶不存在！");
        } else if (failed instanceof BadCredentialsException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶密碼是錯(cuò)的！");
        } else if (failed instanceof AccountExpiredException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶賬戶已過(guò)期！");
        } else if (failed instanceof LockedException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶賬戶已被鎖！");
        } else if (failed instanceof CredentialsExpiredException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶密碼已失效！");
        } else if (failed instanceof DisabledException) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶賬戶已被鎖！");
        }
    }
}

9.編寫安全配置類

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private SysUserDetailsService sysUserDetailsService;
    @Autowired
    private RsaKeyProperties prop;

    @Bean
    public BCryptPasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    public AuthenticationProvider daoAuthenticationProvider() {
        DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
         //指定認(rèn)證對(duì)象的來(lái)源
        daoAuthenticationProvider.setUserDetailsService(sysUserDetailsService);
         //指定密碼編碼的來(lái)源
        daoAuthenticationProvider.setPasswordEncoder(passwordEncoder());
        daoAuthenticationProvider.setHideUserNotFoundExceptions(false);
        return daoAuthenticationProvider;
    }

    @Override
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.authenticationProvider(daoAuthenticationProvider());
    }

    @Override
    public void configure(HttpSecurity http) throws Exception {
        //禁用csrf保護(hù)機(jī)制
        http.csrf().disable();
        //禁用cors保護(hù)機(jī)制
        http.cors().disable();
        //禁用session會(huì)話
        http.sessionManagement().disable();
        //禁用form表單登錄
        http.formLogin().disable();
        //增加自定義認(rèn)證過(guò)濾器（認(rèn)證服務(wù)需要配置）
        http.addFilter(new JwtAuthenticationFilter(super.authenticationManager(), prop));
    }
}

六 訂單資源

資源服務(wù)可以有很多個(gè)，這里只拿訂單服務(wù)為例，記住，資源服務(wù)中只能通過(guò)公鑰驗(yàn)證認(rèn)證。不能簽發(fā)token！

• 注意：本章節(jié)所有操作均在sso-source-order中進(jìn)行。

1.導(dǎo)入依賴

        <!--web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--springSecurity-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>

        <!--mybatis、mysql-->
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.49</version>
        </dependency>

        <!--引入通用子模塊-->
        <dependency>
            <groupId>com.oyjp</groupId>
            <artifactId>sso-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>

2.編寫配置文件

server:
  port: 9002
  servlet:
    application-display-name: sso-source-order

spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/security_test2?useSSL=false
    username: root
    password: root

mybatis:
  type-aliases-package: com.oyjp.domain
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    com.oyjp: debug

#自定義屬性，配置公鑰路徑
rsa:
  key:
    publicKeyPath: E:\auth_key\rsa_key.pub

3.編寫讀取公鑰的配置類

@Data
@ConfigurationProperties(prefix = "rsa.key", ignoreInvalidFields = true)
public class RsaKeyProperties {
    private String publicKeyPath;
    private String privateKeyPath;

    private PublicKey publicKey;
    private PrivateKey privateKey;

    /**
     * 該方法用于初始化公鑰和私鑰的內(nèi)容
     */
    @PostConstruct
    public void loadRsaKey() throws Exception {
        if (publicKeyPath != null) {
            publicKey = RsaUtils.getPublicKey(publicKeyPath);
        }
        if (privateKeyPath != null) {
            privateKey = RsaUtils.getPrivateKey(privateKeyPath);
        }
    }
}

5.編寫驗(yàn)證過(guò)濾器

/**
 * 驗(yàn)證過(guò)濾器
 *
 * @author oyjp
 */
public class JwtVerificationFilter extends BasicAuthenticationFilter {
    private RsaKeyProperties prop;

    public JwtVerificationFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        super(authenticationManager);
        this.prop = prop;
    }

    @Override
    public void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
        try {
            String header = request.getHeader("Authorization");
            if (header == null || !header.startsWith("Bearer ")) {
                //如果token的格式錯(cuò)誤，則提示用戶非法登錄
                chain.doFilter(request, response);
                ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶非法登錄！");
            } else {
                //如果token的格式正確，則先要獲取到token
                String token = header.replace("Bearer ", "");
                //使用公鑰進(jìn)行解密然后來(lái)驗(yàn)證token是否正確
                Payload<SysUser> payload = JwtUtils.getInfoFromToken(token, prop.getPublicKey(), SysUser.class);
                SysUser sysUser = payload.getUserInfo();
                if (sysUser != null) {
                    UsernamePasswordAuthenticationToken authResult = new UsernamePasswordAuthenticationToken(sysUser.getUsername(), null, sysUser.getAuthorities());
                    SecurityContextHolder.getContext().setAuthentication(authResult);
                    chain.doFilter(request, response);
                } else {
                    ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "用戶驗(yàn)證失?。?);
                }
            }
        } catch (ExpiredJwtException e) {
            ResponseUtils.write(response, HttpServletResponse.SC_FORBIDDEN, "請(qǐng)您重新登錄！");
        }
    }
}

6.編寫安全配置類

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private RsaKeyProperties prop;

    @Override
    public void configure(HttpSecurity http) throws Exception {
        //禁用csrf保護(hù)機(jī)制
        http.csrf().disable();
        //禁用cors保護(hù)機(jī)制
        http.cors().disable();
        //禁用session會(huì)話
        http.sessionManagement().disable();
        //禁用form表單登錄
        http.formLogin().disable();
        //增加自定義驗(yàn)證過(guò)濾器（資源服務(wù)需要配置）
        http.addFilter(new JwtVerificationFilter(super.authenticationManager(), prop));
    }
}

7.全局異常處理

@RestControllerAdvice
public class GlobalExceptionHandler {
    @ExceptionHandler(AccessDeniedException.class)
    public Result accessDeniedException() {
        return new Result(403, "用戶權(quán)限不足！", null);
    }

    @ExceptionHandler(RuntimeException.class)
    public Result serverException() {
        return new Result(500, "服務(wù)出現(xiàn)異常！", null);
    }
}

8.訂單資源控制器

@RestController
@RequestMapping("/order")
public class OrderController {
    @Secured({"ROLE_ADMIN","ROLE_ORDER"})
    @RequestMapping("/info")
    public String info() {
        return "Order Controller ...";
    }
}

9.啟動(dòng)類

@SpringBootApplication
@EnableConfigurationProperties(RsaKeyProperties.class)
public class SourceOrderApplication {
    public static void main(String[] args) {
        SpringApplication.run(SourceOrderApplication.class, args);
    }
}

七.產(chǎn)品資源

直接復(fù)制訂單服務(wù)，目錄名稱改為sso-source-product，然后修改yml配置文件、controller、啟動(dòng)類

1.修改yml配置文件

• 改一下application-display-name、port 即可

server:
  port: 9003
  servlet:
    application-display-name: sso-source-product

spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/security_test2?useSSL=false
    username: root
    password: root

mybatis:
  type-aliases-package: com.oyjp.domain
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    com.oyjp: debug

#自定義屬性，配置公鑰路徑
rsa:
  key:
    publicKeyPath: E:\auth_key\rsa_key.pub

2.產(chǎn)品資源控制器

• 編寫產(chǎn)品的controller邏輯

@RestController
@RequestMapping("/product")
public class ProductController {
    @Secured({"ROLE_ADMIN", "ROLE_PRODUCT"})
    @RequestMapping("/info")
    public String info() {
        return "Productr Controller ...";
    }
}

3.啟動(dòng)類

@SpringBootApplication
@EnableConfigurationProperties(RsaKeyProperties.class)
public class SourceProductApplication {
    public static void main(String[] args) {
        SpringApplication.run(SourceProductApplication.class, args);
    }
}

八 終極測(cè)試

1.認(rèn)證服務(wù)測(cè)試

2.訂單資源測(cè)試

3.產(chǎn)品資源測(cè)試

4.用戶狀態(tài)測(cè)試

張三

李四

王五

趙六

小七

老八

密碼錯(cuò)誤：

源碼

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