1,添加ThoughtWorks.QRCode.dll引用
2,添加命名空间
using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using ThoughtWorks.QRCode.Codec.Util;
3,c#代码
using System;4,html代码using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Drawing.Imaging;
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using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using ThoughtWorks.QRCode.Codec.Util;
using System.IO;
using System.Text;
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public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
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}
protected void Button1_Click(object sender, EventArgs e)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
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qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
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qrCodeEncoder.QRCodeScale = 4;
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qrCodeEncoder.QRCodeVersion = 8;
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qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
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//String data = "Hello 二维码!";
String data = TextBox1.Text.ToString();
Response.Write(data);
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System.Drawing.Bitmap image = qrCodeEncoder.Encode(data);
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System.IO.MemoryStream MStream = new System.IO.MemoryStream();
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image.Save(MStream, System.Drawing.Imaging.ImageFormat.Png);
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Response.ClearContent();
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Response.ContentType = "image/Png";
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Response.BinaryWrite(MStream.ToArray());
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//FileInfo f = new FileInfo(@"d:\\zl.png");
Directory.CreateDirectory("d:\\\\zlf");
FileStream fs = new FileStream("d:\\\\zlf\\\\zz。png", FileMode.CreateNew, FileAccess.ReadWrite);
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BinaryWriter bw = new BinaryWriter(fs, UTF8Encoding.UTF8);
byte[] by = MStream.ToArray();
for (int i = 0; i < MStream.ToArray().Length; i++)
bw.Write(by[i]);
fs.Close();
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}
}
<html>
<head runat="server">
<title>无标题页</title>
</head>
<body>
<form id="form1" runat="server">
<div>
请输入内容:<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<br/>
<asp:Button ID="Button1" runat="server" Text="生成二维码" onclick="Button1_Click" />
</div>
</form>
</body>
</html>