/** 获取用户唯一登录标识 */ public static String getAuthUserPin() { String pin = userPinContainer.get(); if (StringUtils.isBlank(pin)) { AuthUserDetails authUserDetails = getAuthUserDetails(); if (authUserDetails != null && authUserDetails.getUsername() != null) { pin = authUserDetails.getUsername(); } else { pin = DEFAULT_UNKNOWN_PIN; } } return pin; }