此版本仍在开发中，尚未被视为稳定版本。对于最新的稳定版本，请使用 Spring Security 6.4.1！spring-doc.cn

EnableReactiveMethodSecurity

Spring Security 使用 Reactor 的 Context 支持方法安全性，该上下文是使用 . 例如，这演示了如何检索当前登录用户的消息。ReactiveSecurityContextHolderspring-doc.cn

为此，方法的返回类型必须是 a（即 /）或函数必须是 Kotlin 协程函数。这是与 Reactor 的 .org.reactivestreams.PublisherMonoFluxContextspring-doc.cn

Javaspring-doc.cn
Kotlinspring-doc.cn

Authentication authentication = new TestingAuthenticationToken("user", "password", "ROLE_USER");

Mono<String> messageByUsername = ReactiveSecurityContextHolder.getContext()
	.map(SecurityContext::getAuthentication)
	.map(Authentication::getName)
	.flatMap(this::findMessageByUsername)
	// In a WebFlux application the `subscriberContext` is automatically setup using `ReactorContextWebFilter`
	.subscriberContext(ReactiveSecurityContextHolder.withAuthentication(authentication));

StepVerifier.create(messageByUsername)
	.expectNext("Hi user")
	.verifyComplete();

val authentication: Authentication = TestingAuthenticationToken("user", "password", "ROLE_USER")

val messageByUsername: Mono<String> = ReactiveSecurityContextHolder.getContext()
	.map(SecurityContext::getAuthentication)
	.map(Authentication::getName)
	.flatMap(this::findMessageByUsername) // In a WebFlux application the `subscriberContext` is automatically setup using `ReactorContextWebFilter`
	.subscriberContext(ReactiveSecurityContextHolder.withAuthentication(authentication))

StepVerifier.create(messageByUsername)
	.expectNext("Hi user")
	.verifyComplete()

定义为：this::findMessageByUsernamespring-doc.cn

Javaspring-doc.cn
Kotlinspring-doc.cn

Mono<String> findMessageByUsername(String username) {
	return Mono.just("Hi " + username);
}

fun findMessageByUsername(username: String): Mono<String> {
	return Mono.just("Hi $username")
}

以下是在响应式应用程序中使用方法安全时的最小方法安全配置。spring-doc.cn

Javaspring-doc.cn
Kotlinspring-doc.cn

@EnableReactiveMethodSecurity
public class SecurityConfig {
	@Bean
	public MapReactiveUserDetailsService userDetailsService() {
		User.UserBuilder userBuilder = User.withDefaultPasswordEncoder();
		UserDetails rob = userBuilder.username("rob")
			.password("rob")
			.roles("USER")
			.build();
		UserDetails admin = userBuilder.username("admin")
			.password("admin")
			.roles("USER","ADMIN")
			.build();
		return new MapReactiveUserDetailsService(rob, admin);
	}
}

@EnableReactiveMethodSecurity
class SecurityConfig {
	@Bean
	fun userDetailsService(): MapReactiveUserDetailsService {
		val userBuilder: User.UserBuilder = User.withDefaultPasswordEncoder()
		val rob = userBuilder.username("rob")
			.password("rob")
			.roles("USER")
			.build()
		val admin = userBuilder.username("admin")
			.password("admin")
			.roles("USER", "ADMIN")
			.build()
		return MapReactiveUserDetailsService(rob, admin)
	}
}

请考虑以下类：spring-doc.cn

Javaspring-doc.cn
Kotlinspring-doc.cn

@Component
public class HelloWorldMessageService {
	@PreAuthorize("hasRole('ADMIN')")
	public Mono<String> findMessage() {
		return Mono.just("Hello World!");
	}
}

@Component
class HelloWorldMessageService {
	@PreAuthorize("hasRole('ADMIN')")
	fun findMessage(): Mono<String> {
		return Mono.just("Hello World!")
	}
}

或者，以下使用 Kotlin 协程的类：spring-doc.cn

Kotlinspring-doc.cn

@Component
class HelloWorldMessageService {
    @PreAuthorize("hasRole('ADMIN')")
    suspend fun findMessage(): String {
        delay(10)
        return "Hello World!"
    }
}

结合我们上面的配置，将确保 that 仅由具有 . 请务必注意，标准方法安全性中的任何表达式都适用于。但是，目前我们只支持表达式的 return type of or。这意味着表达式不能阻塞。@PreAuthorize("hasRole('ADMIN')")findByMessageADMIN@EnableReactiveMethodSecurityBooleanbooleanspring-doc.cn

与 WebFlux Security 集成时，Spring Security 会根据经过身份验证的用户自动建立 Reactor 上下文。spring-doc.cn

Javaspring-doc.cn
Kotlinspring-doc.cn

@EnableWebFluxSecurity
@EnableReactiveMethodSecurity
public class SecurityConfig {

	@Bean
	SecurityWebFilterChain springWebFilterChain(ServerHttpSecurity http) throws Exception {
		return http
			// Demonstrate that method security works
			// Best practice to use both for defense in depth
			.authorizeExchange(exchanges -> exchanges
				.anyExchange().permitAll()
			)
			.httpBasic(withDefaults())
			.build();
	}

	@Bean
	MapReactiveUserDetailsService userDetailsService() {
		User.UserBuilder userBuilder = User.withDefaultPasswordEncoder();
		UserDetails rob = userBuilder.username("rob")
			.password("rob")
			.roles("USER")
			.build();
		UserDetails admin = userBuilder.username("admin")
			.password("admin")
			.roles("USER","ADMIN")
			.build();
		return new MapReactiveUserDetailsService(rob, admin);
	}
}

@EnableWebFluxSecurity
@EnableReactiveMethodSecurity
class SecurityConfig {
	@Bean
	open fun springWebFilterChain(http: ServerHttpSecurity): SecurityWebFilterChain {
		return http {
			authorizeExchange {
				authorize(anyExchange, permitAll)
			}
			httpBasic { }
		}
	}

	@Bean
	fun userDetailsService(): MapReactiveUserDetailsService {
		val userBuilder: User.UserBuilder = User.withDefaultPasswordEncoder()
		val rob = userBuilder.username("rob")
			.password("rob")
			.roles("USER")
			.build()
		val admin = userBuilder.username("admin")
			.password("admin")
			.roles("USER", "ADMIN")
			.build()
		return MapReactiveUserDetailsService(rob, admin)
	}
}

您可以在 hellowebflux-method 中找到完整的示例spring-doc.cn