C# zxing条形码开源库的简单使用例子

清疚 2023-05-29 03:43 33阅读 0赞

###                                    C\# zxing条形码开源库的简单使用例子 ###

**一、简述**

记--使用zxing条形码开源库生成条形码和识别图片中的条形码。

例子：链接: https://pan.baidu.com/s/1Xe\_ZEs07mfj-YyvgApK\_Zw 提取码: cy6t

zxing库下载：https://pan.baidu.com/s/10jeBSyZPvDxvPb6LXw-xlQ 提取码: xufm

官网： [https://github.com/micjahn/ZXing.Net/releases][https_github.com_micjahn_ZXing.Net_releases]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmZlaWJ1eWk_size_16_color_FFFFFF_t_70][]

**二、效果**

根据输入的英文字符串生成对应的条形码，然后将条形码保存为图片，再根据图片识别出条形码的内容。

![20191103221123812.gif][]

**三、工程结构**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmZlaWJ1eWk_size_16_color_FFFFFF_t_70 1][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmZlaWJ1eWk_size_16_color_FFFFFF_t_70 2][]

**四、源文件**

Form1.cs文件

using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;
    using System.Windows.Forms;
    using ZXing.Common;
    
    namespace BarCode
    {
        public partial class MainForm : Form
        {
            public MainForm()
            {
                InitializeComponent();
            }
    
            //生成条形码
            private void buttonCreatorBarCode_Click(object sender, EventArgs e)
            {
                string barCodeStr = textBoxBarCodeStr.Text;
                if (barCodeStr != "")
                {
                    setBarCode128(barCodeStr);
                }
            }
    
            /// <summary>
            /// 将生成的条形码设置到pictureBox
            /// </summary>
            /// <param name="acode">条形码对应的文本</param>
            public void setBarCode128(string barCodeStr)
            {
                try
                {
                    EncodingOptions encodeOption = new EncodingOptions();
                    encodeOption.Height = 100;
                    encodeOption.Width = 300;
                    ZXing.BarcodeWriter wr = new ZXing.BarcodeWriter();
                    wr.Options = encodeOption;
                    wr.Format = ZXing.BarcodeFormat.CODE_128;
                    Bitmap img = wr.Write(barCodeStr);
                    pictureBoxBarCode.Image = img;
                }
                catch
                { }
            }
    
            /// <summary>
            /// 识别条形码图片
            /// </summary>
            /// <param name="picPath">条形码图片的路径</param>
            public void getBarCode128FromPic(string picPath)
            {
                try
                {
                    Bitmap img = new Bitmap(picPath);
                    pictureBoxBarCodePic2.Image = img;
    
                    DecodingOptions decodeOption = new DecodingOptions();           
                    ZXing.BarcodeReader reader = new ZXing.BarcodeReader();
                    reader.Options = decodeOption;
                    ZXing.Result result = reader.Decode(img);
                    string barCodeStr = result.ToString();
                    labelBarCodeResult.Text = "识别结果是:"+barCodeStr;
    
                }
                catch
                { }
            }
    
            /// <summary>
            /// 打开图片文件
            /// </summary>
            /// <param name="sender"></param>
            /// <param name="e"></param>
            private void buttonOpenPicFile_Click(object sender, EventArgs e)
            {
                try
                {
                    OpenFileDialog ofd = new OpenFileDialog();
                    ofd.Title = "请选择条形码图片文件";//对话框的标题
                    ofd.InitialDirectory = "D:\\Test";//对话框打开的目录
                    ofd.Filter = "png文件|*.png|所有文件|*.*";//过滤文件类型
                    DialogResult result = ofd.ShowDialog();
                    string res = result.ToString();
                    if (res == "OK")
                    {
                        string filePath = ofd.FileName;
                        getBarCode128FromPic(filePath);
                    }
                }
                catch { }
            }
        }
    }

**五、总结**

5.1 添加引用zxing库          ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmZlaWJ1eWk_size_16_color_FFFFFF_t_70 3][]

5.2 注意

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L25hbmZlaWJ1eWk_size_16_color_FFFFFF_t_70 4][]

单独将生成的可执行文件(xxx.exe)放在其他目录运行或者是其它电脑运行，需要将zxing库所在路径设置到环境变量或者是将zxing.dll放在可执行文件的同级目录下。

[https_github.com_micjahn_ZXing.Net_releases]: https://github.com/micjahn/ZXing.Net/releases
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[20191103221123812.gif]: https://img-blog.csdnimg.cn/20191103221123812.gif
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