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public class QrcodeController {@Autowiredprivate RedisUtils redisUtils;/*** @description 二维码页面* @return java.lang.String**/@GetMapping({"/","/index"})public String index(ModelMap modelMap){modelMap.put("userId", 1);return "index";}/*** @description 生成二维码* @param request* @Param response* @return void**/@GetMapping("/getQrcode")@ResponseBodypublic 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，30slong expireTime = 30;//设置参数String random = request.getParameter("random");String userId = request.getParameter("userId");//生成二维码唯一标识String key = String.valueOf(System.currentTimeMillis());//设置二维码过期时间redisUtils.set(key,random,expireTime);//二维码中的内容String content = url + "?key=" + key + "&userId=" + userId;//二维码图片中间logoString imgPath = null;Boolean needCompress = true;