后台

 /**
     * @param id
     * @param chuanming
     * @param host
     * @param response
     * @Method generateQRCode
     * @Author charsming
     * @Version 1.0
     * @Description 生成船舶二维码
     * @Return void
     * @Date 2021-12-30 20:51
     */
    @GetMapping("/getQRCode/{id}/{chuanming}/{host}")
    @ResponseBody
    public void generateQRCode(@PathVariable("id") String id, @PathVariable("chuanming") String chuanming, @PathVariable("host") String host,
                               HttpServletResponse response) {
        String qrCodeUrl = host + "/charsming/bordingShip/mobile?id=" + id + "&chuanming=" + chuanming;
        try {
            QrConfig qrConfig = new QrConfig(300, 300);
            QrCodeUtil.generate(qrCodeUrl, qrConfig, "png", response.getOutputStream());
        } catch (IOException e) {
            e.printStackTrace();
        }


    }

js

//二维码
function resetPwd(id,chuanming) {
    var host = window.location.host
    layer.open({
        type: 1,
        title: '船舶二维码',
        maxmin: true,
        shadeClose: false, // 点击遮罩关闭层

        content: `<img src="/charsming/shipB/getQRCode/${id}/${chuanming}/${host}">`
    });

}