import org.springframework.security.web.authentication.ExceptionMappingAuthenticationFailureHandler; //导入依赖的package包/类
@Bean
public AuthenticationFailureHandler authenticationFailureHandler() {
    ExceptionMappingAuthenticationFailureHandler failureHandler = new ExceptionMappingAuthenticationFailureHandler();
    Map<String, String> failureUrlMap = new HashMap<>();
    failureUrlMap.put(BadCredentialsException.class.getName(), LoginAuthenticationFailureHandler.PASS_ERROR_URL);
    failureUrlMap.put(CaptchaException.class.getName(), LoginAuthenticationFailureHandler.CODE_ERROR_URL);
    failureUrlMap.put(AccountExpiredException.class.getName(), LoginAuthenticationFailureHandler.EXPIRED_URL);
    failureUrlMap.put(LockedException.class.getName(), LoginAuthenticationFailureHandler.LOCKED_URL);
    failureUrlMap.put(DisabledException.class.getName(), LoginAuthenticationFailureHandler.DISABLED_URL);
    failureHandler.setExceptionMappings(failureUrlMap);
    return failureHandler;
}