入门

如果您刚开始使用 Spring Authorization Server，以下章节将引导您创建第一个应用程序。

系统要求

Spring Authorization Server 需要 Java 17 或更高版本的运行时环境。

安装 Spring Authorization Server

Spring Authorization Server 可以在您已经使用 Spring Security 的任何地方使用。

开始使用 Spring Authorization Server 最简单的方法是创建一个基于 Spring Boot 的应用程序。您可以使用 start.spring.io 生成一个基本项目，或者使用 默认授权服务器示例 作为指南。然后将 Spring Boot 的 Spring Authorization Server starter 作为依赖项添加：

  • Maven

  • Gradle

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-oauth2-authorization-server</artifactId>
</dependency>
implementation "org.springframework.boot:spring-boot-starter-oauth2-authorization-server"
有关使用 Maven 或 Gradle 安装 Spring Boot 的更多信息，请参阅 安装 Spring Boot。

或者，您可以使用以下示例在不使用 Spring Boot 的情况下添加 Spring Authorization Server：

  • Maven

  • Gradle

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-oauth2-authorization-server</artifactId>
    <version>1.5.3</version>
</dependency>
implementation "org.springframework.security:spring-security-oauth2-authorization-server:1.5.3"

开发您的第一个应用程序

要开始使用，您需要将最少必需的组件定义为 @Bean。当使用 spring-boot-starter-oauth2-authorization-server 依赖项时，定义以下属性，Spring Boot 将为您提供必要的 @Bean 定义：

application.yml
server:
  port: 9000

logging:
  level:
    org.springframework.security: trace

spring:
  security:
    user:
      name: user
      password: password
    oauth2:
      authorizationserver:
        client:
          oidc-client:
            registration:
              client-id: "oidc-client"
              client-secret: "{noop}secret"
              client-authentication-methods:
                - "client_secret_basic"
              authorization-grant-types:
                - "authorization_code"
                - "refresh_token"
              redirect-uris:
                - "http://127.0.0.1:8080/login/oauth2/code/oidc-client"
              post-logout-redirect-uris:
                - "http://127.0.0.1:8080/"
              scopes:
                - "openid"
                - "profile"
            require-authorization-consent: true
除了入门体验之外，大多数用户都会希望自定义默认配置。下一节 将演示如何自己提供所有必要的 Bean。

定义必需组件

如果您想自定义默认配置（无论您是否使用 Spring Boot），您可以在 Spring @Configuration 中将最少必需的组件定义为 @Bean。

这些组件可以定义如下：

SecurityConfig.java
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.util.UUID;

import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.jwk.RSAKey;
import com.nimbusds.jose.jwk.source.ImmutableJWKSet;
import com.nimbusds.jose.jwk.source.JWKSource;
import com.nimbusds.jose.proc.SecurityContext;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.http.MediaType;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.oauth2.core.AuthorizationGrantType;
import org.springframework.security.oauth2.core.ClientAuthenticationMethod;
import org.springframework.security.oauth2.core.oidc.OidcScopes;
import org.springframework.security.oauth2.jwt.JwtDecoder;
import org.springframework.security.oauth2.server.authorization.client.InMemoryRegisteredClientRepository;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClient;
import org.springframework.security.oauth2.server.authorization.client.RegisteredClientRepository;
import org.springframework.security.oauth2.server.authorization.config.annotation.web.configuration.OAuth2AuthorizationServerConfiguration;
import org.springframework.security.oauth2.server.authorization.config.annotation.web.configurers.OAuth2AuthorizationServerConfigurer;
import org.springframework.security.oauth2.server.authorization.settings.AuthorizationServerSettings;
import org.springframework.security.oauth2.server.authorization.settings.ClientSettings;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.LoginUrlAuthenticationEntryPoint;
import org.springframework.security.web.util.matcher.MediaTypeRequestMatcher;

@Configuration
@EnableWebSecurity
public class SecurityConfig {

	@Bean (1)
	@Order(1)
	public SecurityFilterChain authorizationServerSecurityFilterChain(HttpSecurity http)
			throws Exception {
		OAuth2AuthorizationServerConfigurer authorizationServerConfigurer =
				OAuth2AuthorizationServerConfigurer.authorizationServer();

		http
			.securityMatcher(authorizationServerConfigurer.getEndpointsMatcher())
			.with(authorizationServerConfigurer, (authorizationServer) ->
				authorizationServer
					.oidc(Customizer.withDefaults())	// Enable OpenID Connect 1.0
			)
			.authorizeHttpRequests((authorize) ->
				authorize
					.anyRequest().authenticated()
			)
			// Redirect to the login page when not authenticated from the
			// authorization endpoint
			.exceptionHandling((exceptions) -> exceptions
				.defaultAuthenticationEntryPointFor(
					new LoginUrlAuthenticationEntryPoint("/login"),
					new MediaTypeRequestMatcher(MediaType.TEXT_HTML)
				)
			);

		return http.build();
	}

	@Bean (2)
	@Order(2)
	public SecurityFilterChain defaultSecurityFilterChain(HttpSecurity http)
			throws Exception {
		http
			.authorizeHttpRequests((authorize) -> authorize
				.anyRequest().authenticated()
			)
			// Form login handles the redirect to the login page from the
			// authorization server filter chain
			.formLogin(Customizer.withDefaults());

		return http.build();
	}

	@Bean (3)
	public UserDetailsService userDetailsService() {
		UserDetails userDetails = User.withDefaultPasswordEncoder()
				.username("user")
				.password("password")
				.roles("USER")
				.build();

		return new InMemoryUserDetailsManager(userDetails);
	}

	@Bean (4)
	public RegisteredClientRepository registeredClientRepository() {
		RegisteredClient oidcClient = RegisteredClient.withId(UUID.randomUUID().toString())
				.clientId("oidc-client")
				.clientSecret("{noop}secret")
				.clientAuthenticationMethod(ClientAuthenticationMethod.CLIENT_SECRET_BASIC)
				.authorizationGrantType(AuthorizationGrantType.AUTHORIZATION_CODE)
				.authorizationGrantType(AuthorizationGrantType.REFRESH_TOKEN)
				.redirectUri("http://127.0.0.1:8080/login/oauth2/code/oidc-client")
				.postLogoutRedirectUri("http://127.0.0.1:8080/")
				.scope(OidcScopes.OPENID)
				.scope(OidcScopes.PROFILE)
				.clientSettings(ClientSettings.builder().requireAuthorizationConsent(true).build())
				.build();

		return new InMemoryRegisteredClientRepository(oidcClient);
	}

	@Bean (5)
	public JWKSource<SecurityContext> jwkSource() {
		KeyPair keyPair = generateRsaKey();
		RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
		RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
		RSAKey rsaKey = new RSAKey.Builder(publicKey)
				.privateKey(privateKey)
				.keyID(UUID.randomUUID().toString())
				.build();
		JWKSet jwkSet = new JWKSet(rsaKey);
		return new ImmutableJWKSet<>(jwkSet);
	}

	private static KeyPair generateRsaKey() { (6)
		KeyPair keyPair;
		try {
			KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
			keyPairGenerator.initialize(2048);
			keyPair = keyPairGenerator.generateKeyPair();
		}
		catch (Exception ex) {
			throw new IllegalStateException(ex);
		}
		return keyPair;
	}

	@Bean (7)
	public JwtDecoder jwtDecoder(JWKSource<SecurityContext> jwkSource) {
		return OAuth2AuthorizationServerConfiguration.jwtDecoder(jwkSource);
	}

	@Bean (8)
	public AuthorizationServerSettings authorizationServerSettings() {
		return AuthorizationServerSettings.builder().build();
	}

}

这是一个用于快速入门的最小配置。要了解每个组件的用途，请参阅以下说明：

1 一个用于 协议端点 的 Spring Security 过滤器链。
2 一个用于 身份验证 的 Spring Security 过滤器链。
3 一个用于检索要进行身份验证的用户实例的 UserDetailsService。
4 一个用于管理客户端的 RegisteredClientRepository 实例。
5 一个用于签署访问令牌的 com.nimbusds.jose.jwk.source.JWKSource 实例。
6 一个带有启动时生成的密钥的 java.security.KeyPair 实例，用于创建上述 JWKSource。
7 一个用于解码签名访问令牌的 JwtDecoder 实例。
8 一个用于配置 Spring Authorization Server 的 AuthorizationServerSettings 实例。
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