退出登录

Spring Security 默认提供了一个退出登录端点。登录后，你可以通过 GET /logout 查看默认的退出登录确认页面，或者通过 POST /logout 发起退出登录。这将

清除 ServerCsrfTokenRepository、ServerSecurityContextRepository，并且
重定向回登录页面

通常，你可能还希望在退出登录时使会话失效。为此，你可以将 WebSessionServerLogoutHandler 添加到退出登录配置中，如下所示

Java
Kotlin

@Bean
SecurityWebFilterChain http(ServerHttpSecurity http) throws Exception {
    DelegatingServerLogoutHandler logoutHandler = new DelegatingServerLogoutHandler(
            new SecurityContextServerLogoutHandler(), new WebSessionServerLogoutHandler()
    );

    http
        .authorizeExchange((exchange) -> exchange.anyExchange().authenticated())
        .logout((logout) -> logout.logoutHandler(logoutHandler));

    return http.build();
}

@Bean
fun http(http: ServerHttpSecurity): SecurityWebFilterChain {
    val customLogoutHandler = DelegatingServerLogoutHandler(
        SecurityContextServerLogoutHandler(), WebSessionServerLogoutHandler()
    )

    return http {
        authorizeExchange {
            authorize(anyExchange, authenticated)
        }
        logout {
            logoutHandler = customLogoutHandler
        }
    }
}