/**
     * 将跳转链接修正为完整链接
     *
     * @param site 当前站点链接
     * @param url  待修正链接
     * @return 完整链接
     */
    public static String modifyUrl(String site, String url) {
        String http = "";
        if (site.startsWith("http://")) {
            http = "http://";
            site = site.substring(7);
        } else if (site.startsWith("https://")) {
            http = "https://";
            site = site.substring(8);
        }

        if (url.startsWith("http") || url.startsWith("mailto:")) {
            return url;
        } else {
            if (!site.contains("/")) {
                if (url.startsWith("//"))
                    url = url.substring(2);
                else if (url.startsWith("/"))
                    url = site + url;
                else if (url.startsWith("./"))
                    url = site + url.substring(1);
                else if (url.startsWith("../"))
                    url = site + url.substring(2);
                else if (url.startsWith("?"))
                    url = site + url;
                else
                    url = site + "/" + url;
            } else if (site.contains("?")) {
                return modifyUrl(http + site.substring(0, site.lastIndexOf("?")), url);
            } else {
                if (url.startsWith("//"))
                    url = url.substring(2);
                else if (url.startsWith("/"))
                    url = site.substring(0, site.indexOf("/")) + url;
                else if (url.startsWith("./"))
                    url = modifyUrl(http + site, url.substring(2));
                else if (url.startsWith("../"))
                    url = site.substring(0, site.lastIndexOf("/", site.lastIndexOf("/") - 1)) + url.substring(2);
                else if (url.startsWith("?"))
                    url = site + url;
                else
                    url = site.substring(0, site.lastIndexOf("/") + 1) + url;
            }
        }

        return http + url;
    }