开发ASP.NET MVC 开发名片二维码生成工具 （原创）

在网上找了很多，都只能生成网址，不能生成名片二维码，于是自己动手。

第一步，写视图界面，主要代码如下：

<script type="text/javascript">
        function SubmitURL() {
            $("#frmMakeQrURLCode").submit();
        }
        function SubmitQrCode() {
            $("#frmMakeQrCode").submit();
        }
    </script>

<div class="jumbotron">
    <h1>名片二维码工具</h1>
    <p class="lead">
 <form id="frmMakeQrCode" action="/Home/MakeQrCode" method="post">
        <table border="">
            <tbody><tr>
                <th colspan="">名片二维码信息</th>
            </tr>
            <tr>
                <td>姓名:</td>
                <td><input type="text" id="txtUsername" name="Username"></td>
            </tr>
            <tr>
                <td>电话号码:</td>
                <td><input type="text" id="txtPhone" name="Phone"></td>
                <td colspan=""><input type="button" id="btnSubmit" value="生成名片二维码" onclick="SubmitQrCode()"></td>
            </tr>
        </tbody></table>
       </form>
    </p>
</div>

第二步，写控制器，处理form的post请求。主要是处理vcard的字符串和生成png图片。主要代码：

[HttpPost]
        public ActionResult MakeQrCode()
        {
            string username = Request.Form["Username"];
            string phone = Request.Form["Phone"];

            StringBuilder Vcard = new StringBuilder();

            Vcard.Append("BEGIN:VCARD");
            Vcard.Append("FN:").Append(username).Append(";");
            Vcard.Append("ORG:").Append("CVTE").Append(";");
            Vcard.Append("TEL;WORK;VOICE:").Append(phone).Append(";");
            //Vcard.Append("TEL;TYPE=VOICE,WORK;VALUE=text:").Append(phone).Append(";");
            Vcard.Append("END:VCARD");
            //结束

            //这样写也可以
            StringBuilder Vcard1 = new StringBuilder();
            Vcard1.Append("BEGIN:VCARD");
            Vcard1.Append(System.Environment.NewLine);
            Vcard1.Append("VERSION:3.0") ;
            Vcard1.Append(System.Environment.NewLine);
            Vcard1.Append("FN:" + username) ;
            //Vcard1.Append("TEL;WORK;VOICE:" + phone );
            Vcard1.Append(System.Environment.NewLine);
            Vcard1.Append("TEL;TYPE=VOICE,WORK;VALUE=text:" + phone) ;
            Vcard1.Append(System.Environment.NewLine);
            Vcard1.Append("ORG:CVTE") ;
            Vcard1.Append(System.Environment.NewLine);
            Vcard1.Append("END:VCARD");
            //string vcard = @"BEGIN:VCARD" + System.Environment.NewLine + "VERSION:3.0" + System.Environment.NewLine + "FN:" + username + "CVTE" + System.Environment.NewLine + "TEL;TYPE=VOICE,WORK;VALUE=text:" + phone + "" + System.Environment.NewLine + "END:VCARD";
            //string imageUrl = string.Format(@"<img src=""/Home/BarcodeImage?barcodeText={0}"" />",Server.HtmlEncode( vcard) );
            string imageUrl = string.Format(@"<img src=""/Home/BarcodeImage?barcodeText={0}"" />", Server.HtmlEncode(Vcard.ToString()));
            return BarcodeImage(Vcard1.ToString());

        }

        [HttpPost]
        public MvcHtmlString MakeQrURLCode()
        {

            string url = Request.Form["URL"];

            string imageUrl  = "<img src=\"/Home/BarcodeImage?barcodeText=" + url + "\"/>";

            return new MvcHtmlString(imageUrl);
        }

        public ActionResult BarcodeImage(String barcodeText)
        {
            QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
            QrCode qrCode = new QrCode();
            qrEncoder.TryEncode(barcodeText, out qrCode);
            GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(, QuietZoneModules.Four), Brushes.Black, Brushes.White);

            Stream memoryStream = new MemoryStream();
            renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, memoryStream);
            memoryStream.Position = ;

            var resultStream = new FileStreamResult(memoryStream, "image/png");
            resultStream.FileDownloadName = "cvteQR.png";

            return resultStream;
        }

完整代码下载: Code download