Spring-Security-文档笔记之Authentication事件

1. 介绍

每次身份验证成功或失败，将分别触发AuthenticationSuccessEvent或AuthenticationFailureEvent。要监听这些事件, 需要AuthenticationEventPublisher, 默认实现为DefaultAuthenticationEventPublisher.

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

然后可通过@EventListener监听事件:

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

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

2. 事件映射

DefaultAuthenticationEventPublisher默认可发布以下事件 :

这个publisher精确匹配异常，即这些异常的子类也不会产生事件。提供附加映射:
@Bean
public AuthenticationEventPublisher authenticationEventPublisher
(ApplicationEventPublisher applicationEventPublisher) {
Map<Class<? extends AuthenticationException>,
Class<? extends AuthenticationFailureEvent>> mapping =
Collections.singletonMap(FooException.class, FooEvent.class);
AuthenticationEventPublisher authenticationEventPublisher =
new DefaultAuthenticationEventPublisher(applicationEventPublisher);
authenticationEventPublisher.setAdditionalExceptionMappings(mapping);
return authenticationEventPublisher;
}