----------------------server---------------------------

config----配置

-----------------------pom-------------------------

  <dependencies>
      <dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-web</artifactId>
      </dependency>
      <dependency>
          <groupId>org.springframework.security.oauth</groupId>
          <artifactId>spring-security-oauth2</artifactId>
          <version>${oauth.version}</version>
      </dependency>
<dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-freemarker</artifactId>
      </dependency>
  </dependencies>

-------------yml---------------

server:
  port: 8881
  servlet:
    context-path: /auth

-------启动类----

@SpringBootApplication
@EnableResourceServer
public class OAuthServerApplication extends SpringBootServletInitializer {

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

}

--------controller 控制包-------------

@Controller
public class LoginController {

   /**
    * 自定义登录页面
    * @return
    */
    @GetMapping("/login")
    public String login() {
       return "login";
    }

}

@RestController
public class UserController {

   /**
    * 资源服务器提供的受保护接口
    * @param principal
    * @return
    */
    @RequestMapping("/user")
    public Principal user(Principal principal) {
        System.out.println(principal);
        return principal;
    }
    
}

----------------------------config 控制包-------

@Configuration
@EnableAuthorizationServer
public class OAuthServerConfig extends AuthorizationServerConfigurerAdapter {
    
    @Autowired    
    private BCryptPasswordEncoder passwordEncoder;
    
    @Override
    public void configure(final AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
        oauthServer.tokenKeyAccess("permitAll()").checkTokenAccess("isAuthenticated()");
    }

    @Override
    public void configure(final ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
            .withClient("SampleClientId") // clientId, 可以类比为用户名
            .secret(passwordEncoder.encode("secret")) // secret， 可以类比为密码
            .authorizedGrantTypes("authorization_code")    // 授权类型，这里选择授权码
            .scopes("user_info") // 授权范围
            .autoApprove(true) // 自动认证
            .redirectUris("http://localhost:8882/login","http://localhost:8883/login") // 认证成功重定向URL
            .accessTokenValiditySeconds(10); // 超时时间，10s 
    }

}

@Configuration
@Order(1)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.requestMatchers()
           .antMatchers("/login")
           .antMatchers("/oauth/authorize")
           .and()
           .authorizeRequests()
           .anyRequest().authenticated()
           .and()
           .formLogin().loginPage("/login").permitAll()   // 自定义登录页面，这里配置了 loginPage, 就会通过 LoginController 的 login 接口加载登录页面
           .and().csrf().disable();
        
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
       // 配置用户名密码，这里采用内存方式，生产环境需要从数据库获取
        auth.inMemoryAuthentication()
            .withUser("admin")
            .password(passwordEncoder().encode("123"))
            .roles("USER");
    }

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


------------------client--------------

<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.security.oauth.boot</groupId>
        <artifactId>spring-security-oauth2-autoconfigure</artifactId>
        <version>${oauth-auto.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-thymeleaf</artifactId>
    </dependency>
    <dependency>
        <groupId>org.thymeleaf.extras</groupId>
        <artifactId>thymeleaf-extras-springsecurity4</artifactId>
    </dependency>
</dependencies>


--------------------yml-------------------

auth-server: http://localhost:8881/auth
server:
  port: 8882
  servlet:
    context-path: /
  session:
    cookie:
      name: SESSION1
security:
  basic:
    enabled: false
  oauth2:
    client:
      clientId: SampleClientId
      clientSecret: secret
      accessTokenUri: ${auth-server}/oauth/token
      userAuthorizationUri: ${auth-server}/oauth/authorize
    resource:
      userInfoUri: ${auth-server}/user
spring:
  thymeleaf:
    cache: false        

--------------------config-------------------

@EnableOAuth2Sso
@Configuration
public class OAuthClientSecurityConfig extends WebSecurityConfigurerAdapter {

    @Override
    public void configure(HttpSecurity http) throws Exception {
       http.csrf().disable()
          .antMatcher("/**")
            .authorizeRequests()
            .antMatchers("/", "/login**")
            .permitAll()
            .anyRequest()
            .authenticated();
    }
}

@Configuration
@EnableWebMvc
public class OAuthClientWebConfig implements WebMvcConfigurer {

    @Bean
    public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
        return new PropertySourcesPlaceholderConfigurer();
    }

    @Override
    public void configureDefaultServletHandling(final DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    @Override
    public void addViewControllers(final ViewControllerRegistry registry) {
        registry.addViewController("/")
            .setViewName("forward:/index");
        registry.addViewController("/index");
        registry.addViewController("/securedPage");
    }

    @Override
    public void addResourceHandlers(final ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/resources/**")
            .addResourceLocations("/resources/");
    }

}

--------------controller------------

@RestController
public class DemoController {
    @RequestMapping("/getname")
    public  String getName()
    {
        return SecurityContextHolder.getContext().getAuthentication().getName();
    }
}

@SpringBootApplication
public class OAuthClientApplication extends SpringBootServletInitializer {

    @Bean
    public RequestContextListener requestContextListener() {
        return new RequestContextListener();
    }

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