登录态自动延期（支持自定义登录态有效期窗口，默认24H，当登录态有效期窗口过半时，自动顺延一个周期）实现是否有误

[yinliyun]

// After the expiration time has passed half, Auto refresh if ((System.currentTimeMillis() - xxlUser.getExpireFreshTime()) > xxlUser.getExpireMinute()/2) { xxlUser.setExpireFreshTime(System.currentTimeMillis()); SsoLoginStore.put(storeKey, xxlUser); }

System.currentTimeMillis() - xxlUser.getExpireFreshTime()是毫秒级别
xxlUser.getExpireMinute()/2是分钟级别