C#生成二维码的方法
本文实例讲述了C#生成二维码的方法。分享给大家供大家参考。具体实现方法如下:
首先引用ThoughtWorks.QRCode.dll
具体代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Drawing;
using ThoughtWorks.QRCode.Codec;
namespace QRCodeUtil
{
/// <summary>
/// 二维码生成
/// </summary>
public class QRCodeHelper
{
#region 根据链接获取二维码
/// <summary>
/// 根据链接获取二维码
/// </summary>
/// <param name="link">链接</param>
/// <returns>返回二维码图片</returns>
public static Bitmap GetQRCodeBmp(string link)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 0;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
Bitmap bmp = qrCodeEncoder.Encode(link);
return bmp;
}
#endregion
}
}
使用示例如下:
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 QRCodeUtil;
namespace SWX
{
public partial class WebForm1 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Bitmap bmp = QRCodeHelper.GetQRCodeBmp(@"http://www.baidu.com/");
string str = HttpContext.Current.Request.MapPath("\\aa.bmp");
bmp.Save(str);
}
}
}