认证事件（Authentication Events）

对于每个成功或失败的身份验证，将分别触发一个 AuthenticationSuccessEvent 或 AbstractAuthenticationFailureEvent 。

要侦听这些事件，你必须首先发布一个 AuthenticationEventPublisher，Spring Security 的 DefaultAuthenticationEventPublisher 可能会做得很好:

@Bean
public AuthenticationEventPublisher authenticationEventPublisher
        (ApplicationEventPublisher applicationEventPublisher) {
    return new DefaultAuthenticationEventPublisher(applicationEventPublisher);
}
           

然后，你可以使用 Spring 的@EventListener 支持:

@Component
public class AuthenticationEvents {
	@EventListener
    public void onSuccess(AuthenticationSuccessEvent success) {
		// ...
    }

    @EventListener
    public void onFailure(AbstractAuthenticationFailureEvent failures) {
		// ...
    }
}
           

虽然类似于 AuthenticationSuccessHandler 和 AuthenticationFailureHandler，但它们很好，因为它们可以独立于Servlet API使用。

添加异常映射（Adding Exception Mappings）

默认情况下，DefaultAuthenticationEventPublisher 将为以下事件发布一个 AbstractAuthenticationFailureEvent :

Exception	Event
BadCredentialsException	AuthenticationFailureBadCredentialsEvent
UsernameNotFoundException	AuthenticationFailureBadCredentialsEvent
AccountExpiredException	AuthenticationFailureExpiredEvent
ProviderNotFoundException	AuthenticationFailureProviderNotFoundEvent
DisabledException	AuthenticationFailureDisabledEvent
LockedException	AuthenticationFailureLockedEvent
AuthenticationServiceException	AuthenticationFailureServiceExceptionEvent
CredentialsExpiredException	AuthenticationFailureCredentialsExpiredEvent
InvalidBearerTokenException	AuthenticationFailureBadCredentialsEvent
发布者执行精确的异常匹配，这意味着这些异常的子类不会也生成事件。
为此，您可能需要通过 setAdditionalExceptionMappings 方法向发布者提供额外的映射:

@Bean
public AuthenticationEventPublisher authenticationEventPublisher (ApplicationEventPublisher applicationEventPublisher) {
    Map<Class<? extends AuthenticationException>,
        Class<? extends AbstractAuthenticationFailureEvent>> mapping =
            Collections.singletonMap(FooException.class, FooEvent.class);
    AuthenticationEventPublisher authenticationEventPublisher =
        new DefaultAuthenticationEventPublisher(applicationEventPublisher);
    authenticationEventPublisher.setAdditionalExceptionMappings(mapping);
    return authenticationEventPublisher;
}
           

默认事件（Default Event）

您可以提供一个通用事件，以便在发生任何身份验证异常的情况下触发：

@Bean
public AuthenticationEventPublisher authenticationEventPublisher
        (ApplicationEventPublisher applicationEventPublisher) {
    AuthenticationEventPublisher authenticationEventPublisher =
        new DefaultAuthenticationEventPublisher(applicationEventPublisher);
    authenticationEventPublisher.setDefaultAuthenticationFailureEvent
        (GenericAuthenticationFailureEvent.class);
    return authenticationEventPublisher;
}