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因为目前做了一个基于Spring Cloud的微服务项目，所以了解到了OAuth2，打算整合一下OAuth2来实现统一授权。关于OAuth是一个关于授权的开放网络标准，目前的版本是2.0，这里我就不多做介绍了。下面贴一下我学习过程中参考的资料。

开发环境：Windows10， Intellij Idea2018.2， jdk1.8， redis3.2.9， Spring Boot 2.0.2 Release， Spring Cloud Finchley.RC2 Spring 5.0.6

项目目录

eshop —— 父级工程，管理jar包版本

eshop-server —— Eureka服务注册中心

eshop-gateway —— Zuul网关

eshop-auth —— 授权服务

eshop-member —— 会员服务

eshop-email —— 邮件服务（暂未使用）

eshop-common —— 通用类

关于如何构建一个基本的Spring Cloud 微服务这里就不赘述了，不会的可以看一下我的关于Spring Cloud系列的博客。

https://github.com/YunaiV/SpringBoot-Labs

授权服务

首先构建eshop-auth服务，引入相关依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>eshop-parent</artifactId>
        <groupId>com.curise.eshop</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>eshop-auth</artifactId>
    <packaging>war</packaging>
    <description>授权模块</description>

    <dependencies>
        <dependency>
            <groupId>com.curise.eshop</groupId>
            <artifactId>eshop-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

接下来，配置Mybatis、redis、eureka，贴一下配置文件

server:
  port: 1203

spring:
  application:
    name: eshop-auth
  redis:
    database: 0
    host: 192.168.0.117
    port: 6379
    password:
    jedis:
      pool:
        max-active: 8
        max-idle: 8
        min-idle: 0
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql://localhost:3306/eshop_member?useUnicode=true&characterEncoding=utf-8&useSSL=false&allowMultiQueries=true
    username: root
    password: root
  druid:
    initialSize: 5 #初始化连接大小
    minIdle: 5     #最小连接池数量
    maxActive: 20  #最大连接池数量
    maxWait: 60000 #获取连接时最大等待时间，单位毫秒
    timeBetweenEvictionRunsMillis: 60000 #配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒
    minEvictableIdleTimeMillis: 300000   #配置一个连接在池中最小生存的时间，单位是毫秒
    validationQuery: SELECT 1 from DUAL  #测试连接
    testWhileIdle: true                  #申请连接的时候检测，建议配置为true，不影响性能，并且保证安全性
    testOnBorrow: false                  #获取连接时执行检测，建议关闭，影响性能
    testOnReturn: false                  #归还连接时执行检测，建议关闭，影响性能
    poolPreparedStatements: false        #是否开启PSCache，PSCache对支持游标的数据库性能提升巨大，oracle建议开启，mysql下建议关闭
    maxPoolPreparedStatementPerConnectionSize: 20 #开启poolPreparedStatements后生效
    filters: stat,wall,log4j #配置扩展插件，常用的插件有=>stat:监控统计  log4j:日志  wall:防御sql注入
    connectionProperties: 'druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000' #通过connectProperties属性来打开mergeSql功能;慢SQL记录


eureka:
  instance:
    prefer-ip-address: true
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
  client:
    service-url:
      defaultZone: http://localhost:1111/eureka/

mybatis:
  type-aliases-package: com.curise.eshop.common.entity
  configuration:
    map-underscore-to-camel-case: true  #开启驼峰命名,l_name -> lName
    jdbc-type-for-null: NULL
    lazy-loading-enabled: true
    aggressive-lazy-loading: true
    cache-enabled: true #开启二级缓存
    call-setters-on-nulls: true #map空列不显示问题
  mapper-locations:
    - classpath:mybatis/*.xml

AuthApplication添加@EnableDiscoveryClient和@MapperScan注解。

接下来配置认证服务器AuthorizationServerConfig ，并添加@Configuration和@EnableAuthorizationServer注解，其中ClientDetailsServiceConfigurer配置在内存中，当然也可以从数据库读取，以后慢慢完善。

@Configuration
@EnableAuthorizationServer
public class AuthorizationServerConfig extends AuthorizationServerConfigurerAdapter {

    @Autowired
    private AuthenticationManager authenticationManager;

    @Autowired
    private DataSource dataSource;

    @Autowired
    private RedisConnectionFactory redisConnectionFactory;

    @Autowired
    private MyUserDetailService userDetailService;

    @Bean
    public TokenStore tokenStore() {
        return new RedisTokenStore(redisConnectionFactory);
    }

    @Override
    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {
        security
                .allowFormAuthenticationForClients()
                .tokenKeyAccess("permitAll()")
                .checkTokenAccess("isAuthenticated()");
    }

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
       // clients.withClientDetails(clientDetails());
        clients.inMemory()
                .withClient("android")
                .scopes("read")
                .secret("android")
                .authorizedGrantTypes("password", "authorization_code", "refresh_token")
                .and()
                .withClient("webapp")
                .scopes("read")
                .authorizedGrantTypes("implicit")
                .and()
                .withClient("browser")
                .authorizedGrantTypes("refresh_token", "password")
                .scopes("read");
    }
    @Bean
    public ClientDetailsService clientDetails() {
        return new JdbcClientDetailsService(dataSource);
    }

    @Bean
    public WebResponseExceptionTranslator webResponseExceptionTranslator(){
        return new MssWebResponseExceptionTranslator();
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints.tokenStore(tokenStore())
                .userDetailsService(userDetailService)
                .authenticationManager(authenticationManager);
        endpoints.tokenServices(defaultTokenServices());
        //认证异常翻译
       // endpoints.exceptionTranslator(webResponseExceptionTranslator());
    }

    /**
     * <p>注意，自定义TokenServices的时候，需要设置@Primary，否则报错，</p>
     * @return
     */
    @Primary
    @Bean
    public DefaultTokenServices defaultTokenServices(){
        DefaultTokenServices tokenServices = new DefaultTokenServices();
        tokenServices.setTokenStore(tokenStore());
        tokenServices.setSupportRefreshToken(true);
        //tokenServices.setClientDetailsService(clientDetails());
        // token有效期自定义设置，默认12小时
        tokenServices.setAccessTokenValiditySeconds(60*60*12);
        // refresh_token默认30天
        tokenServices.setRefreshTokenValiditySeconds(60 * 60 * 24 * 7);
        return tokenServices;
    }
}

在上述配置中，认证的token是存到redis里的，如果你这里使用了Spring5.0以上的版本的话，使用默认的RedisTokenStore认证时会报如下异常：

nested exception is java.lang.NoSuchMethodError: org.springframework.data.redis.connection.RedisConnection.set([B[B)V

原因是spring-data-redis 2.0版本中set(String,String)被弃用了，要使用RedisConnection.stringCommands().set(…)，所有我自定义一个RedisTokenStore，代码和RedisTokenStore一样，只是把所有conn.set(…)都换成conn..stringCommands().set(…)，测试后方法可行。

public class RedisTokenStore implements TokenStore {

    private static final String ACCESS = "access:";
    private static final String AUTH_TO_ACCESS = "auth_to_access:";
    private static final String AUTH = "auth:";
    private static final String REFRESH_AUTH = "refresh_auth:";
    private static final String ACCESS_TO_REFRESH = "access_to_refresh:";
    private static final String REFRESH = "refresh:";
    private static final String REFRESH_TO_ACCESS = "refresh_to_access:";
    private static final String CLIENT_ID_TO_ACCESS = "client_id_to_access:";
    private static final String UNAME_TO_ACCESS = "uname_to_access:";
    private final RedisConnectionFactory connectionFactory;
    private AuthenticationKeyGenerator authenticationKeyGenerator = new DefaultAuthenticationKeyGenerator();
    private RedisTokenStoreSerializationStrategy serializationStrategy = new JdkSerializationStrategy();
    private String prefix = "";

    public RedisTokenStore(RedisConnectionFactory connectionFactory) {
        this.connectionFactory = connectionFactory;
    }

    public void setAuthenticationKeyGenerator(AuthenticationKeyGenerator authenticationKeyGenerator) {
        this.authenticationKeyGenerator = authenticationKeyGenerator;
    }

    public void setSerializationStrategy(RedisTokenStoreSerializationStrategy serializationStrategy) {
        this.serializationStrategy = serializationStrategy;
    }

    public void setPrefix(String prefix) {
        this.prefix = prefix;
    }

    private RedisConnection getConnection() {
        return this.connectionFactory.getConnection();
    }

    private byte[] serialize(Object object) {
        return this.serializationStrategy.serialize(object);
    }

    private byte[] serializeKey(String object) {
        return this.serialize(this.prefix + object);
    }

    private OAuth2AccessToken deserializeAccessToken(byte[] bytes) {
        return (OAuth2AccessToken)this.serializationStrategy.deserialize(bytes, OAuth2AccessToken.class);
    }

    private OAuth2Authentication deserializeAuthentication(byte[] bytes) {
        return (OAuth2Authentication)this.serializationStrategy.deserialize(bytes, OAuth2Authentication.class);
    }

    private OAuth2RefreshToken deserializeRefreshToken(byte[] bytes) {
        return (OAuth2RefreshToken)this.serializationStrategy.deserialize(bytes, OAuth2RefreshToken.class);
    }

    private byte[] serialize(String string) {
        return this.serializationStrategy.serialize(string);
    }

    private String deserializeString(byte[] bytes) {
        return this.serializationStrategy.deserializeString(bytes);
    }

    @Override
    public OAuth2AccessToken getAccessToken(OAuth2Authentication authentication) {
        String key = this.authenticationKeyGenerator.extractKey(authentication);
        byte[] serializedKey = this.serializeKey(AUTH_TO_ACCESS + key);
        byte[] bytes = null;
        RedisConnection conn = this.getConnection();
        try {
            bytes = conn.get(serializedKey);
        } finally {
            conn.close();
        }
        OAuth2AccessToken accessToken = this.deserializeAccessToken(bytes);
        if (accessToken != null) {
            OAuth2Authentication storedAuthentication = this.readAuthentication(accessToken.getValue());
            if (storedAuthentication == null || !key.equals(this.authenticationKeyGenerator.extractKey(storedAuthentication))) {
                this.storeAccessToken(accessToken, authentication);
            }
        }
        return accessToken;
    }

    @Override
    public OAuth2Authentication readAuthentication(OAuth2AccessToken token) {
        return this.readAuthentication(token.getValue());
    }

    @Override
    public OAuth2Authentication readAuthentication(String token) {
        byte[] bytes = null;
        RedisConnection conn = this.getConnection();
        try {
            bytes = conn.get(this.serializeKey("auth:" + token));
        } finally {
            conn.close();
        }
        OAuth2Authentication auth = this.deserializeAuthentication(bytes);
        return auth;
    }

    @Override
    public OAuth2Authentication readAuthenticationForRefreshToken(OAuth2RefreshToken token) {
        return this.readAuthenticationForRefreshToken(token.getValue());
    }

    public OAuth2Authentication readAuthenticationForRefreshToken(String token) {
        RedisConnection conn = getConnection();
        try {
            byte[] bytes = conn.get(serializeKey(REFRESH_AUTH + token));
            OAuth2Authentication auth = deserializeAuthentication(bytes);
            return auth;
        } finally {
            conn.close();
        }
    }

    @Override
    public void storeAccessToken(OAuth2AccessToken token, OAuth2Authentication authentication) {
        byte[] serializedAccessToken = serialize(token);
        byte[] serializedAuth = serialize(authentication);
        byte[] accessKey = serializeKey(ACCESS + token.getValue());
        byte[] authKey = serializeKey(AUTH + token.getValue());
        byte[] authToAccessKey = serializeKey(AUTH_TO_ACCESS + authenticationKeyGenerator.extractKey(authentication));
        byte[] approvalKey = serializeKey(UNAME_TO_ACCESS + getApprovalKey(authentication));
        byte[] clientId = serializeKey(CLIENT_ID_TO_ACCESS + authentication.getOAuth2Request().getClientId());

        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.stringCommands().set(accessKey, serializedAccessToken);
            conn.stringCommands().set(authKey, serializedAuth);
            conn.stringCommands().set(authToAccessKey, serializedAccessToken);
            if (!authentication.isClientOnly()) {
                conn.rPush(approvalKey, serializedAccessToken);
            }
            conn.rPush(clientId, serializedAccessToken);
            if (token.getExpiration() != null) {
                int seconds = token.getExpiresIn();
                conn.expire(accessKey, seconds);
                conn.expire(authKey, seconds);
                conn.expire(authToAccessKey, seconds);
                conn.expire(clientId, seconds);
                conn.expire(approvalKey, seconds);
            }
            OAuth2RefreshToken refreshToken = token.getRefreshToken();
            if (refreshToken != null && refreshToken.getValue() != null) {
                byte[] refresh = serialize(token.getRefreshToken().getValue());
                byte[] auth = serialize(token.getValue());
                byte[] refreshToAccessKey = serializeKey(REFRESH_TO_ACCESS + token.getRefreshToken().getValue());
                conn.stringCommands().set(refreshToAccessKey, auth);
                byte[] accessToRefreshKey = serializeKey(ACCESS_TO_REFRESH + token.getValue());
                conn.stringCommands().set(accessToRefreshKey, refresh);
                if (refreshToken instanceof ExpiringOAuth2RefreshToken) {
                    ExpiringOAuth2RefreshToken expiringRefreshToken = (ExpiringOAuth2RefreshToken) refreshToken;
                    Date expiration = expiringRefreshToken.getExpiration();
                    if (expiration != null) {
                        int seconds = Long.valueOf((expiration.getTime() - System.currentTimeMillis()) / 1000L)
                                .intValue();
                        conn.expire(refreshToAccessKey, seconds);
                        conn.expire(accessToRefreshKey, seconds);
                    }
                }
            }
            conn.closePipeline();
        } finally {
            conn.close();
        }
    }

    private static String getApprovalKey(OAuth2Authentication authentication) {
        String userName = authentication.getUserAuthentication() == null ? "": authentication.getUserAuthentication().getName();
        return getApprovalKey(authentication.getOAuth2Request().getClientId(), userName);
    }

    private static String getApprovalKey(String clientId, String userName) {
        return clientId + (userName == null ? "" : ":" + userName);
    }

    @Override
    public void removeAccessToken(OAuth2AccessToken accessToken) {
        this.removeAccessToken(accessToken.getValue());
    }

    @Override
    public OAuth2AccessToken readAccessToken(String tokenValue) {
        byte[] key = serializeKey(ACCESS + tokenValue);
        byte[] bytes = null;
        RedisConnection conn = getConnection();
        try {
            bytes = conn.get(key);
        } finally {
            conn.close();
        }
        OAuth2AccessToken accessToken = deserializeAccessToken(bytes);
        return accessToken;
    }

    public void removeAccessToken(String tokenValue) {
        byte[] accessKey = serializeKey(ACCESS + tokenValue);
        byte[] authKey = serializeKey(AUTH + tokenValue);
        byte[] accessToRefreshKey = serializeKey(ACCESS_TO_REFRESH + tokenValue);
        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.get(accessKey);
            conn.get(authKey);
            conn.del(accessKey);
            conn.del(accessToRefreshKey);
            // Don't remove the refresh token - it's up to the caller to do that
            conn.del(authKey);
            List<Object> results = conn.closePipeline();
            byte[] access = (byte[]) results.get(0);
            byte[] auth = (byte[]) results.get(1);

            OAuth2Authentication authentication = deserializeAuthentication(auth);
            if (authentication != null) {
                String key = authenticationKeyGenerator.extractKey(authentication);
                byte[] authToAccessKey = serializeKey(AUTH_TO_ACCESS + key);
                byte[] unameKey = serializeKey(UNAME_TO_ACCESS + getApprovalKey(authentication));
                byte[] clientId = serializeKey(CLIENT_ID_TO_ACCESS + authentication.getOAuth2Request().getClientId());
                conn.openPipeline();
                conn.del(authToAccessKey);
                conn.lRem(unameKey, 1, access);
                conn.lRem(clientId, 1, access);
                conn.del(serialize(ACCESS + key));
                conn.closePipeline();
            }
        } finally {
            conn.close();
        }
    }

    @Override
    public void storeRefreshToken(OAuth2RefreshToken refreshToken, OAuth2Authentication authentication) {
        byte[] refreshKey = serializeKey(REFRESH + refreshToken.getValue());
        byte[] refreshAuthKey = serializeKey(REFRESH_AUTH + refreshToken.getValue());
        byte[] serializedRefreshToken = serialize(refreshToken);
        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.stringCommands().set(refreshKey, serializedRefreshToken);
            conn.stringCommands().set(refreshAuthKey, serialize(authentication));
            if (refreshToken instanceof ExpiringOAuth2RefreshToken) {
                ExpiringOAuth2RefreshToken expiringRefreshToken = (ExpiringOAuth2RefreshToken) refreshToken;
                Date expiration = expiringRefreshToken.getExpiration();
                if (expiration != null) {
                    int seconds = Long.valueOf((expiration.getTime() - System.currentTimeMillis()) / 1000L)
                            .intValue();
                    conn.expire(refreshKey, seconds);
                    conn.expire(refreshAuthKey, seconds);
                }
            }
            conn.closePipeline();
        } finally {
            conn.close();
        }
    }

    @Override
    public OAuth2RefreshToken readRefreshToken(String tokenValue) {
        byte[] key = serializeKey(REFRESH + tokenValue);
        byte[] bytes = null;
        RedisConnection conn = getConnection();
        try {
            bytes = conn.get(key);
        } finally {
            conn.close();
        }
        OAuth2RefreshToken refreshToken = deserializeRefreshToken(bytes);
        return refreshToken;
    }

    @Override
    public void removeRefreshToken(OAuth2RefreshToken refreshToken) {
        this.removeRefreshToken(refreshToken.getValue());
    }

    public void removeRefreshToken(String tokenValue) {
        byte[] refreshKey = serializeKey(REFRESH + tokenValue);
        byte[] refreshAuthKey = serializeKey(REFRESH_AUTH + tokenValue);
        byte[] refresh2AccessKey = serializeKey(REFRESH_TO_ACCESS + tokenValue);
        byte[] access2RefreshKey = serializeKey(ACCESS_TO_REFRESH + tokenValue);
        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.del(refreshKey);
            conn.del(refreshAuthKey);
            conn.del(refresh2AccessKey);
            conn.del(access2RefreshKey);
            conn.closePipeline();
        } finally {
            conn.close();
        }
    }

    @Override
    public void removeAccessTokenUsingRefreshToken(OAuth2RefreshToken refreshToken) {
        this.removeAccessTokenUsingRefreshToken(refreshToken.getValue());
    }

    private void removeAccessTokenUsingRefreshToken(String refreshToken) {
        byte[] key = serializeKey(REFRESH_TO_ACCESS + refreshToken);
        List<Object> results = null;
        RedisConnection conn = getConnection();
        try {
            conn.openPipeline();
            conn.get(key);
            conn.del(key);
            results = conn.closePipeline();
        } finally {
            conn.close();
        }
        if (results == null) {
            return;
        }
        byte[] bytes = (byte[]) results.get(0);
        String accessToken = deserializeString(bytes);
        if (accessToken != null) {
            removeAccessToken(accessToken);
        }
    }

    @Override
    public Collection<OAuth2AccessToken> findTokensByClientIdAndUserName(String clientId, String userName) {
        byte[] approvalKey = serializeKey(UNAME_TO_ACCESS + getApprovalKey(clientId, userName));
        List<byte[]> byteList = null;
        RedisConnection conn = getConnection();
        try {
            byteList = conn.lRange(approvalKey, 0, -1);
        } finally {
            conn.close();
        }
        if (byteList == null || byteList.size() == 0) {
            return Collections.<OAuth2AccessToken> emptySet();
        }
        List<OAuth2AccessToken> accessTokens = new ArrayList<OAuth2AccessToken>(byteList.size());
        for (byte[] bytes : byteList) {
            OAuth2AccessToken accessToken = deserializeAccessToken(bytes);
            accessTokens.add(accessToken);
        }
        return Collections.<OAuth2AccessToken> unmodifiableCollection(accessTokens);
    }

    @Override
    public Collection<OAuth2AccessToken> findTokensByClientId(String clientId) {
        byte[] key = serializeKey(CLIENT_ID_TO_ACCESS + clientId);
        List<byte[]> byteList = null;
        RedisConnection conn = getConnection();
        try {
            byteList = conn.lRange(key, 0, -1);
        } finally {
            conn.close();
        }
        if (byteList == null || byteList.size() == 0) {
            return Collections.<OAuth2AccessToken> emptySet();
        }
        List<OAuth2AccessToken> accessTokens = new ArrayList<OAuth2AccessToken>(byteList.size());
        for (byte[] bytes : byteList) {
            OAuth2AccessToken accessToken = deserializeAccessToken(bytes);
            accessTokens.add(accessToken);
        }
        return Collections.<OAuth2AccessToken> unmodifiableCollection(accessTokens);
    }
}

配置资源服务器

@Configuration
@EnableResourceServer
@Order(3)
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {
    @Override
    public void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .exceptionHandling()
                .authenticationEntryPoint((request, response, authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED))
                .and()
                .requestMatchers().antMatchers("/api/**")
                .and()
                .authorizeRequests()
                .antMatchers("/api/**").authenticated()
                .and()
                .httpBasic();
    }
}

配置Spring Security

@Configuration
@EnableWebSecurity
@Order(2)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private MyUserDetailService userDetailService;

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

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.requestMatchers().antMatchers("/oauth/**")
                .and()
                .authorizeRequests()
                .antMatchers("/oauth/**").authenticated()
                .and()
                .csrf().disable();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailService).passwordEncoder(passwordEncoder());
    }

    /**
     * 不定义没有password grant_type
     *
     * @return
     * @throws Exception
     */
    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}

可以看到ResourceServerConfig 是比SecurityConfig 的优先级低的。

二者的关系：

ResourceServerConfig 用于保护oauth相关的endpoints，同时主要作用于用户的登录(form login,Basic auth)
SecurityConfig 用于保护oauth要开放的资源，同时主要作用于client端以及token的认证(Bearer auth)

所以我们让SecurityConfig优先于ResourceServerConfig，且在SecurityConfig 不拦截oauth要开放的资源，在ResourceServerConfig 中配置需要token验证的资源，也就是我们对外提供的接口。所以这里对于所有微服务的接口定义有一个要求，就是全部以/api开头。

如果这里不这样配置的话，在你拿到access_token去请求各个接口时会报 invalid_token的提示。

另外，由于我们自定义认证逻辑，所以需要重写UserDetailService

@Service("userDetailService")
public class MyUserDetailService implements UserDetailsService {

    @Autowired
    private MemberDao memberDao;

    @Override
    public UserDetails loadUserByUsername(String memberName) throws UsernameNotFoundException {
        Member member = memberDao.findByMemberName(memberName);
        if (member == null) {
            throw new UsernameNotFoundException(memberName);
        }
        Set<GrantedAuthority> grantedAuthorities = new HashSet<>();
        // 可用性 :true:可用 false:不可用
        boolean enabled = true;
        // 过期性 :true:没过期 false:过期
        boolean accountNonExpired = true;
        // 有效性 :true:凭证有效 false:凭证无效
        boolean credentialsNonExpired = true;
        // 锁定性 :true:未锁定 false:已锁定
        boolean accountNonLocked = true;
        for (Role role : member.getRoles()) {
            //角色必须是ROLE_开头，可以在数据库中设置
            GrantedAuthority grantedAuthority = new SimpleGrantedAuthority(role.getRoleName());
            grantedAuthorities.add(grantedAuthority);
            //获取权限
            for (Permission permission : role.getPermissions()) {
                GrantedAuthority authority = new SimpleGrantedAuthority(permission.getUri());
                grantedAuthorities.add(authority);
            }
        }
        User user = new User(member.getMemberName(), member.getPassword(),
                enabled, accountNonExpired, credentialsNonExpired, accountNonLocked, grantedAuthorities);
        return user;
    }

}

密码验证为了方便我使用了不加密的方式，重写了PasswordEncoder，实际开发还是建议使用BCryptPasswordEncoder。

public class NoEncryptPasswordEncoder implements PasswordEncoder {

    @Override
    public String encode(CharSequence charSequence) {
        return (String) charSequence;
    }

    @Override
    public boolean matches(CharSequence charSequence, String s) {
        return s.equals((String) charSequence);
    }
}

另外，OAuth的密码模式需要AuthenticationManager支持

@Override
@Bean
public AuthenticationManager authenticationManagerBean() throws Exception {
    return super.authenticationManagerBean();
}

定义一个Controller，提供两个接口，/api/member用来获取当前用户信息，/api/exit用来注销当前用户

@RestController
@RequestMapping("/api")
public class MemberController {

    @Autowired
    private MyUserDetailService userDetailService;

    @Autowired
    private ConsumerTokenServices consumerTokenServices;

    @GetMapping("/member")
    public Principal user(Principal member) {
        return member;
    }

    @DeleteMapping(value = "/exit")
    public Result revokeToken(String access_token) {
        Result result = new Result();
        if (consumerTokenServices.revokeToken(access_token)) {
            result.setCode(ResultCode.SUCCESS.getCode());
            result.setMessage("注销成功");
        } else {
            result.setCode(ResultCode.FAILED.getCode());
            result.setMessage("注销失败");
        }
        return result;
    }
}

会员服务配置

引入依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>eshop-parent</artifactId>
        <groupId>com.curise.eshop</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>eshop-member</artifactId>
    <packaging>war</packaging>
    <description>会员模块</description>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

配置资源服务器

@Configuration
@EnableResourceServer
public class ResourceServerConfig extends ResourceServerConfigurerAdapter {

    @Override
    public void configure(HttpSecurity http) throws Exception {
        http
                .csrf().disable()
                .exceptionHandling()
                .authenticationEntryPoint((request, response, authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED))
                .and()
                .requestMatchers().antMatchers("/api/**")
                .and()
                .authorizeRequests()
                .antMatchers("/api/**").authenticated()
                .and()
                .httpBasic();
    }
}

配置文件配置

spring:
  application:
    name: eshop-member

server:
  port: 1201

eureka:
  instance:
    prefer-ip-address: true
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
  client:
    service-url:
      defaultZone: http://localhost:1111/eureka/

security:
  oauth2:
    resource:
      id: eshop-member
      user-info-uri: http://localhost:1202/auth/api/member
      prefer-token-info: false

MemberApplication主类配置

@SpringBootApplication
@EnableDiscoveryClient
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class MemberApplication {

    public static void main(String[] args) {
        SpringApplication.run(MemberApplication.class,args);
    }
}

提供对外接口

@RestController
@RequestMapping("/api")
public class MemberController {

    @GetMapping("hello")
    @PreAuthorize("hasAnyAuthority('hello')")
    public String hello(){
        return "hello";
    }

    @GetMapping("current")
    public Principal user(Principal principal) {
        return principal;
    }

    @GetMapping("query")
    @PreAuthorize("hasAnyAuthority('query')")
    public String query() {
        return "具有query权限";
    }
}

配置网关

引入依赖

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>eshop-parent</artifactId>
        <groupId>com.curise.eshop</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <packaging>jar</packaging>
    <artifactId>eshop-gateway</artifactId>
    <description>网关</description>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-oauth2</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

配置文件

server:
  port: 1202

spring:
  application:
    name: eshop-gateway

#--------------------eureka---------------------
eureka:
  instance:
    prefer-ip-address: true
    instance-id: ${spring.cloud.client.ip-address}:${server.port}
  client:
    service-url:
      defaultZone: http://localhost:1111/eureka/

#--------------------Zuul-----------------------
zuul:
  routes:
    member:
      path: /member/**
      serviceId: eshop-member
      sensitiveHeaders: "*"
    auth:
      path: /auth/**
      serviceId: eshop-auth
      sensitiveHeaders: "*"
  retryable: false
  ignored-services: "*"
  ribbon:
    eager-load:
      enabled: true
  host:
    connect-timeout-millis: 3000
    socket-timeout-millis: 3000
  add-proxy-headers: true


#---------------------OAuth2---------------------
security:
  oauth2:
    client:
      access-token-uri: http://localhost:${server.port}/auth/oauth/token
      user-authorization-uri: http://localhost:${server.port}/auth/oauth/authorize
      client-id: web
    resource:
      user-info-uri:  http://localhost:${server.port}/auth/api/member
      prefer-token-info: false

#----------------------超时配置-------------------
ribbon:
  ReadTimeout: 3000
  ConnectTimeout: 3000
  MaxAutoRetries: 1
  MaxAutoRetriesNextServer: 2
  eureka:
    enabled: true
hystrix:
  command:
    default:
      execution:
        timeout:
          enabled: true
        isolation:
          thread:
            timeoutInMilliseconds: 3500

ZuulApplication主类

@SpringBootApplication
@EnableDiscoveryClient
@EnableZuulProxy
@EnableOAuth2Sso
public class ZuulApplication {
    public static void main(String[] args) {
        SpringApplication.run(ZuulApplication.class, args);
    }
}

Spring Security配置

@Configuration
@EnableWebSecurity
@Order(99)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable();
    }
}

接下来分别启动eshop-server、eshop-member、eshop-auth、eshop-gateway。

先发送一个请求测试一下未认证的效果

获取认证

使用access_token请求auth服务下的用户信息接口

使用access_token请求member服务下的用户信息接口

请求member服务的query接口

请求member服务的hello接口，数据库里并没有给用户hello权限

刷新token

注销

后续还会慢慢完善，敬请期待！！

关于代码和数据表sql已经上传到GitHub。地址：https://github.com/WYA1993/springcloud_oauth2.0。

注意把数据库和redis替换成自己的地址

统一回复一下，有很多人反映获取认证时返回401，如下：

{
    "timestamp": "2019-08-13T03:25:27.161+0000",
    "status": 401,
    "error": "Unauthorized",
    "message": "Unauthorized",
    "path": "/oauth/token"
}

原因是在发起请求的时候没有添加Basic Auth认证，如下图：

，添加Basic Auth认证后会在headers添加一个认证消息头

添加Basic Auth认证的信息在代码中有体现：

客户端信息和token信息从MySQL数据库中获取

现在客户端信息都是存在内存中的，生产环境肯定不可以这么做，要支持客户端的动态添加或删除，所以我选择把客户端信息存到MySQL中。

首先，创建数据表，数据表的结构官方已经给出，地址在

https://github.com/spring-projects/spring-security-oauth/blob/master/spring-security-oauth2/src/test/resources/schema.sql

其次，需要修改一下sql脚本，把主键的长度改为128，LONGVARBINARY类型改为blob，调整后的sql脚本：

create table oauth_client_details (
  client_id VARCHAR(128) PRIMARY KEY,
  resource_ids VARCHAR(256),
  client_secret VARCHAR(256),
  scope VARCHAR(256),
  authorized_grant_types VARCHAR(256),
  web_server_redirect_uri VARCHAR(256),
  authorities VARCHAR(256),
  access_token_validity INTEGER,
  refresh_token_validity INTEGER,
  additional_information VARCHAR(4096),
  autoapprove VARCHAR(256)
);

create table oauth_client_token (
  token_id VARCHAR(256),
  token BLOB,
  authentication_id VARCHAR(128) PRIMARY KEY,
  user_name VARCHAR(256),
  client_id VARCHAR(256)
);

create table oauth_access_token (
  token_id VARCHAR(256),
  token BLOB,
  authentication_id VARCHAR(128) PRIMARY KEY,
  user_name VARCHAR(256),
  client_id VARCHAR(256),
  authentication BLOB,
  refresh_token VARCHAR(256)
);

create table oauth_refresh_token (
  token_id VARCHAR(256),
  token BLOB,
  authentication BLOB
);

create table oauth_code (
  code VARCHAR(256), authentication BLOB
);

create table oauth_approvals (
	userId VARCHAR(256),
	clientId VARCHAR(256),
	scope VARCHAR(256),
	status VARCHAR(10),
	expiresAt TIMESTAMP,
	lastModifiedAt TIMESTAMP
);


-- customized oauth_client_details table
create table ClientDetails (
  appId VARCHAR(128) PRIMARY KEY,
  resourceIds VARCHAR(256),
  appSecret VARCHAR(256),
  scope VARCHAR(256),
  grantTypes VARCHAR(256),
  redirectUrl VARCHAR(256),
  authorities VARCHAR(256),
  access_token_validity INTEGER,
  refresh_token_validity INTEGER,
  additionalInformation VARCHAR(4096),
  autoApproveScopes VARCHAR(256)
);