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   源码介绍

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批量生成二维码到一张图片，打印二维码图片

如果遇到 【未能加载文件或程序集“Microsoft.Web.Infrastructure】错误，请执行如下操作：

1. VisualStudio 打开项目  打开 Tools  ->  Library Package Manager -> Package Manager Console

2. 看到一个PM>   输入 Install-Package Microsoft.Web.Infrastructure   (copy也ok的啦)  回车

using System;
using System.Collections;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;

namespace QRCode.Controllers
{
    public class HomeController : Controller
    {
        //
        // GET: /Home/
        public ActionResult Index()
        {
            return View();
        }


        /// <summary>
        /// 生成二维码
        /// </summary>
        /// <param name="strData">要生成的文字或者数字，支持中文。如： "4408810820 深圳－广州" 或者：4444444444</param>
        /// <param name="qrEncoding">三种尺寸：BYTE ，ALPHA_NUMERIC，NUMERIC</param>
        /// <param name="level">大小：L M Q H</param>
        /// <param name="version">版本：如 8</param>
        /// <param name="scale">比例：如 4</param>
        /// <returns></returns>
        public ActionResult CreateCode_Choose(string strData, string InitialNumber, string Number)
        {
            var iNumber = 0;
            var iInitialNumber = 0;
            if (!int.TryParse(Number, out iNumber))
            {
                return Content("");
            }
            if (!int.TryParse(InitialNumber, out iInitialNumber))
            {
                return Content("");
            }
            string filename = "";
            ArrayList al = new ArrayList();
            //int wushi = 0;
            //int wushiyushu = 0;
            //if (iNumber / 50 > 0)
            //{
            //    wushi = iNumber / 50;
            //    wushiyushu = iNumber % 50;
            //}
            for (int i = 0; i < iNumber; i  )
            {
                QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
                var bianhao = (iInitialNumber   i).ToString("000000");
                //文字生成图片
                Image image = qrCodeEncoder.Encode(strData   bianhao);
                Bitmap bmp = new Bitmap(image.Width, image.Height   20);
                Graphics g = Graphics.FromImage(bmp);
                g.DrawImage(image, 0, 0, image.Width, image.Height);
                g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
                g.CompositingQuality = CompositingQuality.HighQuality;
                g.SmoothingMode = SmoothingMode.HighQuality;
                g.InterpolationMode = InterpolationMode.HighQualityBicubic;


                Font drawFont = new Font("Fixedsys", 16);//Fixedsys  Microsoft Sans Serif  System
                SolidBrush drawBrush = new SolidBrush(Color.Black);
                // Create point for upper-left corner of drawing.
                PointF drawPoint = new PointF(50.0F, 180.0F);
                g.DrawString(bianhao, drawFont, drawBrush, drawPoint);
                GC.Collect();


                filename = DateTime.Now.ToString("yyyymmddhhmmssfff").ToString()   ".png";
                System.Threading.Thread.Sleep(5);
                string filepath = Server.MapPath(@"~\Upload")   "\\"   filename;
                //如果文件夹不存在，则创建
                //if (!Directory.Exists(filepath))
                //    Directory.CreateDirectory(filepath);
                System.IO.FileStream fs = new System.IO.FileStream(filepath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
                bmp.Save(fs, System.Drawing.Imaging.ImageFormat.Png);
                fs.Close();
                image.Dispose();
                bmp.Dispose();
                al.Add(GetIMGbyte(filepath));
            }
            var s = DateTime.Now.ToString("yyyymmddhhmmssfff").ToString();
            tphc(Server.MapPath(@"~\Upload\\"), DateTime.Now.ToString("yyyymmddhhmmssfff").ToString(), al, 1200, 1660);
            return Content(@"/Upload/"   s   ".png");
        }


        /// <summary>  
        /// 合成图片  
        /// </summary>  
        /// <param name="fileFoldUrl">文件夹url</param>  
        /// <param name="fileName">文件名</param>  
        /// <param name="_alMemo">要合成的每张图片的大小数组</param>  
        /// <param name="_width">合成后的宽度</param>  
        /// <param name="_height">合成后的高度</param>  
        public void tphc(string fileFoldUrl, string fileName, ArrayList _alMemo, int _width, int _height)
        {
            byte[] tp = get_tphcMemo(_alMemo, _width, _height);
            this.view_picture(fileFoldUrl, fileName, tp);
        }

        /// <summary>  
        /// 获取合成图片后的字节大小  
        /// </summary>  
        /// <param name="_al">要合成的每张图片的大小数组</param>  
        /// <param name="_width">合成后的宽度</param>  
        /// <param name="_height">合成后的高度</param>  
        /// <returns>byte[]</returns>  
        private byte[] get_tphcMemo(ArrayList _al, int _width, int _height)
        {
            //byte[]  
            byte[] tp = null;
            //MemoryStream  
            MemoryStream ms = null;
            MemoryStream imgms = null;
            //Bitmap  
            Bitmap bmp = null;
            //image  
            System.Drawing.Image img = null;
            //Graphics  
            Graphics gp = null;
            try
            {
                ms = new MemoryStream();
                bmp = new Bitmap(_width, _height);
                bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                img = System.Drawing.Image.FromStream(ms);
                int i_top = 10;
                var v = 0;
                var y = 10;
                for (int pic_i = 0; pic_i < _al.Count; pic_i  )
                {

                    //if (pic_i == 3)
                    //    break;
                    gp = Graphics.FromImage(img);
                    MemoryStream ms1 = new MemoryStream(((byte[])_al[pic_i]));
                    System.Drawing.Image img1 = System.Drawing.Image.FromStream(ms1);
                    Bitmap bmp1 = new Bitmap(img1);
                    if (v >= 6)
                    {
                        y  = bmp1.Width   25;
                        v = 0;
                        i_top = 10;
                    }
                    Rectangle rtl = new Rectangle(i_top, y, bmp1.Width, bmp1.Height);
                    gp.DrawImage(bmp1, rtl, 0, 0, bmp1.Width, bmp1.Height, GraphicsUnit.Pixel);
                    i_top  = bmp1.Width   10;
                    ms1.Dispose();
                    img1.Dispose();
                    bmp1.Dispose();
                    gp.Dispose();
                    v  ;
                }

                imgms = new MemoryStream();
                img.Save(imgms, img.RawFormat);
                imgms.Position = 0;
                tp = new byte[imgms.Length];
                imgms.Read(tp, 0, Convert.ToInt32(imgms.Length));
                return tp;
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }
        private byte[] GetIMGbyte(string PicturePath)
        {
            //将需要存储的图片读取为数据流
            FileStream fs = new FileStream(@PicturePath, FileMode.Open, FileAccess.Read);
            Byte[] btye2 = new byte[fs.Length];
            fs.Read(btye2, 0, Convert.ToInt32(fs.Length));
            fs.Close();
            return btye2;
        }
        /// <summary>  
        /// 保存图片  
        /// </summary>  
        /// <param name="fileFoldUrl">文件夹url</param>  
        /// <param name="fileName">文件名</param>  
        /// <param name="zp">文件的字节数组</param>  
        public void view_picture(string fileFoldUrl, string fileName, byte[] zp)
        {
            MemoryStream ms = new MemoryStream(zp);
            Bitmap btp = new Bitmap(ms);
            DirectoryInfo dti = new DirectoryInfo(fileFoldUrl);
            string fileUrl = fileFoldUrl   fileName   ".png";
            btp.Save(fileUrl);
        }
    }
}