1.创建父工程

<groupId>com.itheima</groupId>
<artifactId>springboot_security_oauth</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>2.1.3.RELEASE</version>
  <relativePath/>
</parent>
<properties>
  <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
</properties>
<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-dependencies</artifactId>
      <version>${spring-cloud.version}</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>
<repositories>
  <repository>
    <id>spring-snapshots</id>
    <name>Spring Snapshots</name>
    <url>https://repo.spring.io/snapshot</url>
    <snapshots>
      <enabled>true</enabled>
    </snapshots>
  </repository>
  <repository>
    <id>spring-milestones</id>
    <name>Spring Milestones</name>
    <url>https://repo.spring.io/milestone</url>
    <snapshots>
      <enabled>false</enabled>
    </snapshots>
  </repository>
</repositories>

2.创建资源模块

2.1 创建工程并导入依赖

<parent>
  <artifactId>springboot_security_oauth</artifactId>
  <groupId>com.itheima</groupId>
  <version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>oauth_source</artifactId>
<dependencies>
  <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.cloud</groupId>
    <artifactId>spring-cloud-starter-oauth2</artifactId>
  </dependency>
  <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.47</version>
  </dependency>
  <dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.0</version>
  </dependency>
</dependencies>

2.2 创建配置文件

server:
  port: 9002
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql:///security_authority
    username: root
    password: root
  main:
    allow-bean-definition-overriding: true
mybatis:
  type-aliases-package: com.itheima.domain
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    com.itheima: debug

2.3 创建启动类

@SpringBootApplication
@MapperScan("com.itheima.mapper")
public class OAuthSourceApplication {
    public static void main(String[] args) {
        SpringApplication.run(OAuthSourceApplication.class, args);
    }
}

2.4 创建处理器

@RestController
@RequestMapping("/product")
public class ProductController {
    @GetMapping
    public String findAll(){
        return "查询产品列表成功！";
    }
}

3.创建授权模块

3.1 创建工程并导入依赖

<parent>
  <artifactId>springboot_security_oauth</artifactId>
  <groupId>com.itheima</groupId>
  <version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>oauth_server</artifactId>
<dependencies>
  <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.cloud</groupId>
    <artifactId>spring-cloud-starter-oauth2</artifactId>
  </dependency>
  <dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>5.1.47</version>
  </dependency>
  <dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.1.0</version>
  </dependency>
</dependencies>

3.2 创建配置文件

server:
  port: 9001
spring:
  datasource:
    driver-class-name: com.mysql.jdbc.Driver
    url: jdbc:mysql:///security_authority
    username: root
    password: root
  main:
    allow-bean-definition-overriding: true # 这个表示允许我们覆盖OAuth2放在容器中的bean对象，一定要配置
mybatis:
  type-aliases-package: com.itheima.domain
  configuration:
    map-underscore-to-camel-case: true
logging:
  level:
    com.itheima: debug

3.3 创建启动类

@SpringBootApplication
@MapperScan("com.itheima.mapper")
public class OauthServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(OauthServerApplication.class, args);
    }
}

3.4 创建配置类

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    
    @Autowired
    private UserDetailsService myCustomUserService;
    @Bean
    public BCryptPasswordEncoder myPasswordEncoder(){
        return new BCryptPasswordEncoder();
    }
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
        //所有资源必须授权后访问
        .anyRequest().authenticated()
        .and()
        .formLogin()
        .loginProcessingUrl("/login")
        .permitAll()//指定认证页面可以匿名访问
        //关闭跨站请求防护
        .and().csrf().disable();
    }
    
    @Override
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        //UserDetailsService类
        auth.userDetailsService(myCustomUserService)
        //加密策略
        .passwordEncoder(myPasswordEncoder());
    }
    
    //AuthenticationManager对象在OAuth2认证服务中要使用，提取放入IOC容器中
    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
}

3.5 创建OAuth2授权配置类

@Configuration
@EnableAuthorizationServer
public class OauthServerConfig extends AuthorizationServerConfigurerAdapter {
    
    @Autowired
    private DataSource dataSource;
    @Autowired
    private AuthenticationManager authenticationManager;
    @Autowired
    private UserDetailsService userDetailsService;
    
    //从数据库中查询出客户端信息
    @Bean
    public JdbcClientDetailsService clientDetailsService() {
        return new JdbcClientDetailsService(dataSource);
    }
    
    //token保存策略
    @Bean
    public TokenStore tokenStore() {
        return new JdbcTokenStore(dataSource);
    }
    
    //授权信息保存策略
    @Bean
    public ApprovalStore approvalStore() {
        return new JdbcApprovalStore(dataSource);
    }
    
    //授权码模式专用对象
    @Bean
    public AuthorizationCodeServices authorizationCodeServices() {
        return new JdbcAuthorizationCodeServices(dataSource);
    }
    
    //指定客户端登录信息来源
    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.withClientDetails(clientDetailsService());
    }
    
    @Override
    public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
        oauthServer.allowFormAuthenticationForClients();
        oauthServer.checkTokenAccess("isAuthenticated()");
    }
    
    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints
        .approvalStore(approvalStore())
        .authenticationManager(authenticationManager)
        .authorizationCodeServices(authorizationCodeServices())
        .tokenStore(tokenStore());
    }
}