public void getQrcode(HttpServletRequest request, HttpServletResponse response) throws Exception { //二维码中的链接,需要公网网址才可以用手机扫描出来,本地测试开通natapp进行内网渗透 String url = "http://qh22wg.natappfree.cc/scanQrcode"; //过期时间,30s long expireTime = 30; //设置参数 String r...