ASP.NET（C#)生成二维码

1.下载动态库ThoughtWorks.QRCode.dll，直接百度即可

2.在创建好的项目中添加引用，将ThoughtWorks.QRCode.dll引用到项目中

3.创建一个web 窗体，添加控件TextBox、Button、Image控件

4.双击按钮，生成事件。

下面是源码：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using System.Text;

using ThoughtWorks;

using ThoughtWorks.QRCode;

using ThoughtWorks.QRCode.Codec;

using ThoughtWorks.QRCode.Codec.Data;
namespace 生成二维码
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            Create_two(this.TextBox1.Text);
        }
        private void Create_two(string nr)
        {
            Bitmap bt;

            string enCodeString = nr;

            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();

            bt = qrCodeEncoder.Encode(enCodeString, Encoding.UTF8);

            string filename = string.Format(DateTime.Now.ToString(), "yyyymmddhhmmss")

             + ".jpg";

            filename = filename.Replace(" ", "");

            filename = filename.Replace(":", "");

            filename = filename.Replace("-", "");

            filename = filename.Replace(".", "");

            bt.Save(Server.MapPath("~/Images/") + filename + ".jpg");

            this.Image1.ImageUrl = "~/Images/" + filename + ".jpg";
        }
    }
}

转载自：https://jingyan.baidu.com/article/14bd256e2f0f0fbb6d261232.html