C#读取,生成二维码和一维码

在这里用的是ZXing.net 开源地址https://github.com/zxing/zxing
我也做了一个生成和读取实例:链接:https://pan.baidu.com/s/1Q9ybn3ML53NTmVS8G-OE0w 提取码:oy8b
以下是核心源码:转载请保留http://www.luofenming.com/show.aspx?id=ART2019111500001
//引用了
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using ZXing;
using ZXing.Common;
using ZXing.QrCode;
using ZXing.QrCode.Internal;
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="text">内容</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
/// <returns></returns>
public static Bitmap Generate1(string text, int width, int height)
{
    BarcodeWriter writer = new BarcodeWriter();
    writer.Format = BarcodeFormat.QR_CODE;
    QrCodeEncodingOptions options = new QrCodeEncodingOptions()
    {
        DisableECI = true,//设置内容编码
        CharacterSet = "UTF-8",  //设置二维码的宽度和高度
        Width = width,
        Height = height,
        Margin = 1//设置二维码的边距,单位不是固定像素
    };

    writer.Options = options;
    Bitmap map = writer.Write(text);
    return map;
}

/// <summary>
/// 生成一维条形码
/// </summary>
/// <param name="text">内容</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
/// <returns></returns>
public static Bitmap Generate2(string text, int width, int height)
{
    BarcodeWriter writer = new BarcodeWriter();
    //使用ITF 格式,不能被现在常用的支付宝、微信扫出来
    //如果想生成可识别的可以使用 CODE_128 格式
    //writer.Format = BarcodeFormat.ITF;
    writer.Format = BarcodeFormat.CODE_39;
    EncodingOptions options = new EncodingOptions()
    {
        Width = width,
        Height = height,
        Margin = 2
    };
    writer.Options = options;
    Bitmap map = writer.Write(text);
    return map;
}

/// <summary>
/// 生成带Logo的二维码
/// </summary>
/// <param name="text">内容</param>
/// <param name="width">宽度</param>
/// <param name="height">高度</param>
public static Bitmap Generate3(string text, int width, int height)
{
    //Logo 图片
    string logoPath = System.AppDomain.CurrentDomain.BaseDirectory + @"\img\logo.png";
    Bitmap logo = new Bitmap(logoPath);
    //构造二维码写码器
    MultiFormatWriter writer = new MultiFormatWriter();
    Dictionary<EncodeHintType, object> hint = new Dictionary<EncodeHintType, object>();
    hint.Add(EncodeHintType.CHARACTER_SET, "UTF-8");
    hint.Add(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
    //hint.Add(EncodeHintType.MARGIN, 2);//旧版本不起作用,需要手动去除白边

    //生成二维码 
    BitMatrix bm = writer.encode(text, BarcodeFormat.QR_CODE, width + 30, height + 30, hint);
    bm = deleteWhite(bm);
    BarcodeWriter barcodeWriter = new BarcodeWriter();
    Bitmap map = barcodeWriter.Write(bm);

    //获取二维码实际尺寸(去掉二维码两边空白后的实际尺寸)
    int[] rectangle = bm.getEnclosingRectangle();

    //计算插入图片的大小和位置
    int middleW = Math.Min((int)(rectangle[2] / 3), logo.Width);
    int middleH = Math.Min((int)(rectangle[3] / 3), logo.Height);
    int middleL = (map.Width - middleW) / 2;
    int middleT = (map.Height - middleH) / 2;

    Bitmap bmpimg = new Bitmap(map.Width, map.Height, PixelFormat.Format32bppArgb);
    using (Graphics g = Graphics.FromImage(bmpimg))
    {
        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
        g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
        g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
        g.DrawImage(map, 0, 0, width, height);
        //白底将二维码插入图片
        g.FillRectangle(Brushes.White, middleL, middleT, middleW, middleH);
        g.DrawImage(logo, middleL, middleT, middleW, middleH);
    }
    return bmpimg;
}

/// <summary>
/// 删除默认对应的空白
/// </summary>
/// <param name="matrix"></param>
/// <returns></returns>
private static BitMatrix deleteWhite(BitMatrix matrix)
{
    int[] rec = matrix.getEnclosingRectangle();
    int resWidth = rec[2] + 1;
    int resHeight = rec[3] + 1;

    BitMatrix resMatrix = new BitMatrix(resWidth, resHeight);
    resMatrix.clear();
    for (int i = 0; i < resWidth; i++)
    {
        for (int j = 0; j < resHeight; j++)
        {
            if (matrix[i + rec[0], j + rec[1]])
                resMatrix[i, j] = true;
        }
    }
    return resMatrix;
}

/// <summary>
/// 解码二维码
/// </summary>
/// <param name="barcodeBitmap">待解码的二维码图片</param>
/// <returns>扫码结果</returns>
public static string DecodeQrCode(Bitmap barcodeBitmap)
{
    BarcodeReader reader = new BarcodeReader();
    reader.Options.CharacterSet = "UTF-8";
    var result = reader.Decode(barcodeBitmap);
    return (result == null) ? null : result.Text;
}

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