using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using ThoughtWorks.QRCode.Codec.Util;
using System.IO;
using System.Text;
using System.Net;
using System.Drawing;
using System.Drawing.Drawing2D;
public partial class 测试 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Button1.Click+=Button1_Click;
}
void Button1_Click(object sender, EventArgs e)
{
try
{
string mypath = "";
//创建新对象
QRCodeEncoder qr = new QRCodeEncoder();
//字节：文字，英文，数字都可以
qr.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qr.QRCodeScale = 3;//尺寸
qr.QRCodeVersion = 5;//点数
qr.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;//容错率
string data = TextBox1.Text.ToString();//要转换成二维码的信息
System.Drawing.Bitmap img = qr.Encode(data);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
img.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
string path = mypath + "img/";//data.Trim().ToString()、Guid.NewGuid().ToString()
string tempname = data.Trim().ToString() + ".png";//图片名称
Directory.CreateDirectory(Server.MapPath(path));
FileStream fs = new FileStream(Server.MapPath(path + tempname), FileMode.CreateNew, FileAccess.ReadWrite);
BinaryWriter bw = new BinaryWriter(fs, UTF8Encoding.UTF8);
byte[] by = ms.ToArray();
for (int i = 0; i < ms.ToArray().Length; i++)
{
bw.Write(by[i]);
}
fs.Close();
Image1.Src = path + tempname;
}
catch { }
}
}
bin文件夹需要添加的文件：ThoughtWorks.QRCode.dll 和 ThoughtWorks.QRCode.pdb
前台：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ceshi.aspx.cs" Inherits="测试" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
</head>
<body>
<form id="form1" runat="server">
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="生成二维码及相关信息" OnClick="Button1_Click"/>
<br /><br />
<div style="width: 500px; height: 200px;border:1px solid gray;">
<img id="Image1" src="" runat="server" />
</div>
</form>
</body>
</html>
后台：
时间： 2024-11-04 00:34:25