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[ASP.net教程]使用Zxing 一维码


最近看到满大街的二维码扫码有惊喜,对二维码也有过一些了解,想看看到底是什么原理,在网上找了一些资料,自己弄了一个实例,采用的是MVC,贴出来分享一下

一维码生成

 Controller

     public ActionResult QRCodView()    {      return View();    }

 

1  <div class="col-md-4">2     <h2>一维码生成</h2>3     <div><input type="number" maxlength="24" placeholder="请输入24位数字" id="text1" class="form-control" /><i id="btnGO1" class="button btn-primary h6">生成一维码</i></div>4     <img id="BarCod" src="~/Image/e78b58d4-c4d4-4561-a1a0-854170419f73.jpg" class="img-thumbnail" />5   </div>

View
1  $("#btnGO1").click(function () {2     $.post("/Data/Create", { context: $("#text1").val() }, function (d) {3       $("#BarCod").attr("src", d);4     });5   });

JS代码
  //一维码生成    public string Create()    {      string context = Request.Form["context"];      string imgPath = CommCor.BarCodeUnit.CreateBarCode(context, Server.MapPath("~/TempFiled/"));            return "/TempFiled/" + imgPath;    }

//引用命名空间using ZXing;using System.Drawing;using ZXing.QrCode;using ZXing.Common;using System.Text.RegularExpressions;using System.Drawing.Imaging;using ZXing.QrCode.Internal;using System.IO;    /// <summary>    /// 一维码生成    /// </summary>    /// <param name="contents"></param>    public static string CreateBarCode(string contents, string tempPath)    {            EncodingOptions options = null;      BarcodeWriter writer = null;      options = new EncodingOptions      {        Width = 200,        Height = 200      };      writer = new BarcodeWriter();      writer.Format = BarcodeFormat.ITF;      writer.Options = options;      Bitmap bitmap = writer.Write(contents);      string fileName = Guid.NewGuid().ToString() + ".png";      bitmap.Save(tempPath + fileName);      return fileName;    }

一维码生成核心代码

效果如上图