How to use NuGet and configure log4net will not be introduced, directly on the code ( QRDecodeDemo.zip ).
(Project under Visual Studio 2015, using .NET Framework 4.5.2)
Tucao about the inability to insert code blocks in the blog park... The typesetting is ugly, as follows:
using System;
using System.IO;
using System.Drawing;
using System.Configuration;
using ThoughtWorks.QRCode.Codec;
using ThoughtWorks.QRCode.Codec.Data;
using log4net;
namespace QRDecodeConsoleApp
{
class Program
{
/// <summary>
/// Private log object
/// </summary>
private static readonly ILog logger = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
/// <summary>
/// Identify all QR code images (PNG) in the specified directory
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
try
{
string[] files;
if (args.Length > 0)
{
files = Directory.GetFiles(args[0], "*.png");//Parameters after exe in CMD
}
else
{
//Read the specified road strength (the road strength configured in QRDecodeConsoleApp.exe.config)
files = Directory.GetFiles(ConfigurationManager.AppSettings["QRImgPath"], "*.png");
}
// file to store the result
string filePath = "txtResult" + DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".config";
CreateTxtFile(filePath, "");//initially empty
// read and append to the record file one by one
for (int i = 0; i < files.Length; i++)
{
File.AppendAllText(filePath, CodeDecoder(files[i]) + "\t" + files[i] + "\n");//Append to the file record
logger.Info("The first" + i + "successful identification");
Console.WriteLine("" + i + "successful recognition");
}
Console.WriteLine("Recognition completed, press any key to exit");
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("Recognition error: " + ex.Message);
logger.Error("Identification error");
logger.Error("Exception description:\t" + ex.Message);
logger.Error("Exception method:\t" + ex.TargetSite);
logger.Error("Exception stack: \t" + ex.StackTrace);
Console.ReadLine();
}
}
/// <summary>
/// Read the image file and identify the QR code
/// </summary>
/// <param name="filePath">image file path</param>
/// <returns>Identification result string</returns>
public static string CodeDecoder(string filePath)
{
string decoderStr;
try
{
if (!System.IO.File.Exists(filePath))//Determine whether there is a main folder that needs to be read, if it does not exist, terminate
return null;
Bitmap bitMap = new Bitmap(Image.FromFile(filePath));//Instantiate the bitmap object and instantiate the file as a bitmap object with color information
QRCodeDecoder decoder = new QRCodeDecoder();//实例化QRCodeDecoder
decoderStr = decoder.decode(new QRCodeBitmapImage(bitMap), System.Text.Encoding.UTF8);//Convert color information into string information through the .decoder method
}
catch (Exception ex)
{
throw ex;
}
return decoderStr;//Return string information
}
/// <summary>
/// Create a text type file
/// </summary>
/// <param name="filename">File name (.config, .txt file, etc.)</param>
/// <param name="txtStr">File content string</param>
static void CreateTxtFile(string filename, string txtStr)
{
try
{
FileStream fs = new FileStream(filename, FileMode.Create);//Generate file
byte[] data = System.Text.Encoding.UTF8.GetBytes(txtStr);//Get byte array
fs.Write(data, 0, data.Length);//Start writing
fs.Flush();//Empty the buffer
fs.Close();//Close the stream
}
catch (Exception ex)
{
throw ex;
}
}
}
}