生成二维码（支持中文）_.NET_编程开发_程序员俱乐部

using System;
using System.Collections.Generic;
using System.Text;
//using Aspose.BarCode;
using System.Drawing.Imaging;
//using ThoughtWorks.QRCode.Codec;
//using System.Drawing.Imaging;
using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using ThoughtWorks.QRCode.Codec.Util;

namespace QrCode
{
    public static class Qr
    {
        public static string toUrl2(string str)
        {
            try
            {
                Encoding utf8 = Encoding.UTF8;
                Encoding gb2312 = Encoding.GetEncoding("GB2312");
                byte[] unicodeBytes = gb2312.GetBytes(str);
                byte[] asciiBytes = Encoding.Convert(gb2312, utf8, unicodeBytes);
                char[] asciiChars = new char[utf8.GetCharCount(asciiBytes, 0, asciiBytes.Length)];
                utf8.GetChars(asciiBytes, 0, asciiBytes.Length, asciiChars, 0);
                string result = new string(asciiChars);
                return result;
            }
            catch
            {
                return "";
            }
        }

        public static string toUrl(string str)
        {
            try
            {
                Encoding utf8 = Encoding.UTF8;
                Encoding gb2312 = Encoding.GetEncoding("GB2312");
                byte[] unicodeBytes = utf8.GetBytes(str);
                byte[] asciiBytes = Encoding.Convert(utf8, gb2312, unicodeBytes);
                char[] asciiChars = new char[utf8.GetCharCount(asciiBytes, 0, unicodeBytes.Length)];
                utf8.GetChars(asciiBytes, 0, unicodeBytes.Length, asciiChars, 0);
                string result = new string(asciiChars);
                return result;
            }
            catch
            {
                return "";
            }
        }

        public static bool OutQrInfo(string Info, string picFileName, out string errMsg)
        {
            errMsg = null;
            try
            {
                QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
                qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
                qrCodeEncoder.QRCodeScale = 4;
                qrCodeEncoder.QRCodeVersion = 8;
                qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
                System.Drawing.Bitmap image = qrCodeEncoder.Encode(Info, Encoding.UTF8);
                string filepath= AppDomain.CurrentDomain.BaseDirectory;
                image.Save(filepath + "/QRCodeImg/" + picFileName); //, System.Drawing.Imaging.ImageFormat.Gif);
                return true;
            }
            catch (Exception te)
            {
                errMsg = te.Message;
                return false;
            }

        }



        //public static string toUrlX(string s)
        //{
        //    return s != null ? HttpContext.Current.Server.UrlEncode(s) : null;
        //}

        public static string OutQr4Url(string url, string caption)
        {

            string turl = string.Format("MEBKM:{0};URL:{1};", (caption), (url));
            return turl;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }

        public static string OutQr4SMS(string Mobile, string Info)
        {
            string url = string.Format("SMSTO:{0}:{1}", (Mobile), (Info));
            return url;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }

        public static string OutQr4MMS(string Mobile, string Info)
        {
            string url = string.Format("MMSTO:{0}:{1}", (Mobile), (Info));
            return url;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }

        public static string OutQr4Email(string Email, string Caption, string Body)
        {
            string url = string.Format("MATMSG:TO:{0};SUB:{1};BODY:{2};", (Email), (Caption), (Body));
            return url;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }



        public static string OutQr4WiFi(string WEP_WPA, string SID, string Password)
        {
            string url = string.Format("WIFI:T:{0};S:{1};P:{2};", (WEP_WPA), (SID), (Password));
            return url;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }

        public static string OutQr4Card(string ModelCode,string Factory, string Sex, string RimStyle, string Price)
        {
            string url = string.Format("GlasessModel: Code:{0};Factory:{3};nSex:{2};Rim style:{1};Price:{4};", (ModelCode), (Factory), (Sex), RimStyle, Price);
            return url;
        }

        public static string OutQr4Telephone(string Phone)
        {
            string url = string.Format("TEL:{0}",
                (Phone));
            return url;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }

        public static string OutQr4App(string AppID)
        {
            string url = string.Format("market://details?id={0}",
                toUrl(AppID));
            return url;
            //string errMsg;
            //OutQrInfo(url,  out errMsg);
        }

        public static string OutQr4Location(decimal longitude, decimal latitude, decimal accuracy)
        {
            string url = string.Format("GEO:{0},{1},{2}", longitude, latitude, accuracy);
            return url;
            //    string errMsg;
            //    OutQrInfo(url,  out errMsg);
            //}

        }
    }
}

以上是这个生成二维码的方法类。

下面是生成其中一个类型的方法：

 string filename = DateTime.Now.ToFileTime().ToString()+".jpg";
            string err = string.Empty;
            string s = Qr.OutQr4Card(txtModelCode.Text,txtFactory.Text,Sex,RimStyle,txtPrice.Text);
            Qr.OutQrInfo(s, filename, out err);

另外还要引用ThoughtWorks.QRCode.dll文件。