基于Spring Cloud 几行配置完成单点登录开发

单点登录概念

单点登录（Single Sign On），简称为 SSO，是目前比较流行的企业业务整合的解决方案之一。SSO的定义是在多个应用系统中，用户只需要登录一次就可以访问所有相互信任的应用系统。登录逻辑如上图

基于Spring 全家桶的实现

技术选型：

Spring Boot

Spring Cloud 

Spring Security oAuth2

客户端：

maven依赖

<dependency>

   <groupId>org.springframework.boot</groupId>

   <artifactId>spring-boot-starter-web</artifactId>

</dependency>

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter-security</artifactId>

</dependency>

<dependency>

    <groupId>org.springframework.security.oauth</groupId>

    <artifactId>spring-security-oauth2</artifactId>

</dependency>

<dependency>

    <groupId>org.springframework.security</groupId>

    <artifactId>spring-security-jwt</artifactId>

</dependency>

EnableOAuth2Sso 注解

入口类配置@@EnableOAuth2Sso

@SpringBootApplication

public class PigSsoClientDemoApplication {



    public static void main(String[] args) {

        SpringApplication.run(PigSsoClientDemoApplication.class, args);

    }



}

配置文件

security:

  oauth2:

    client:

      client-id: pig

      client-secret: pig

      user-authorization-uri: http://localhost:3000/oauth/authorize

      access-token-uri: http://localhost:3000/oauth/token

      scope: serve

    resource:

      jwt:

        key-uri: http://localhost:3000/oauth/token_key

  sessions: neve

SSO认证服务器

认证服务器配置

@Configuration

@Order(Integer.MIN_VALUE)

@EnableAuthorizationServe

public class PigAuthorizationConfig extends AuthorizationServerConfigurerAdapter {



    @Override

    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {

        clients.inMemory()

                .withClient(authServerConfig.getClientId())

                .secret(authServerConfig.getClientSecret())

                .authorizedGrantTypes(SecurityConstants.REFRESH_TOKEN, SecurityConstants.PASSWORD,SecurityConstants.AUTHORIZATION_CODE)

                .scopes(authServerConfig.getScope());

    }



    @Override

    public void configure(AuthorizationServerEndpointsConfigurer endpoints) {

        endpoints

                .tokenStore(new RedisTokenStore(redisConnectionFactory))

                .accessTokenConverter(jwtAccessTokenConverter())

                .authenticationManager(authenticationManager)

                .exceptionTranslator(pigWebResponseExceptionTranslator)

                .reuseRefreshTokens(false)

                .userDetailsService(userDetailsService);

    }



    @Override

    public void configure(AuthorizationServerSecurityConfigurer security) throws Exception {

        security

                .allowFormAuthenticationForClients()

                .tokenKeyAccess("isAuthenticated()")

                .checkTokenAccess("permitAll()");

    }



    @Bean

    public PasswordEncoder passwordEncoder() {

        return new BCryptPasswordEncoder();

    }



    @Bean

    public JwtAccessTokenConverter jwtAccessTokenConverter() {

        JwtAccessTokenConverter jwtAccessTokenConverter = new JwtAccessTokenConverter();

        jwtAccessTokenConverter.setSigningKey(CommonConstant.SIGN_KEY);

        return jwtAccessTokenConverter;

    }



}

配置完成体验

访问SSO客户端的 index.html
重定向到SSO服务端的 Basic 认证
输入账号密码又重定向到原请求的客户端index资源

总结

客户端访问服务端 403问题？用户需要拥有ROLE_USER的权限，具体的可以通过日志可以查看到报错。
Possible CSRF detected - state parameter was present but no state could be found 目前是通过设置session： never或者 cotext-path解决
源码请参考 https://gitee.com/log4j/ 基于Spring Cloud、Spring Security Oauth2.0开发企业级认证与授权，提供常见服务监控、链路追踪、日志分析、缓存管理、任务调度等实现