/// <summary>
/// 生成单个二维码
/// </summary>
/// <param name="subProjectId"></param>
/// <param name="pixel"></param>
/// <returns></returns>
public Task <string> SaveQrCode(Guid subProjectId, int pixel = 4)
{
var generator = new QRCodeGenerator();
var filePath = GetQrCodePath(subProjectId);
// 如果存在就不生成
if (File.Exists(filePath))
{
return(Task.FromResult(filePath));
}
// 生成二维码
// var url = "https://dotnet.holacodes.com/app/home/relational-info?id=" + subProjectId;
// 获取租户信息
var tenantId = CurrentUnitOfWork.GetTenantId();
var tenancyName = tenantId.HasValue ? _tenantManager.GetById((int)tenantId).TenancyName : null;
// 在url里面填入租户名字
var url = $"https://dotnet.holacodes.com/public;tenancyName={tenancyName}/relational-info?id=" + subProjectId;
var qrCode = new QRCode(generator.CreateQrCode(url, QRCodeGenerator.ECCLevel.M, true));
var bitmap = qrCode.GetGraphic(pixel, Color.Black, Color.White, true);
bitmap.Save(filePath, ImageFormat.Jpeg);
// 释放资源
qrCode.Dispose();
bitmap.Dispose();
generator.Dispose();
return(Task.FromResult(filePath));
}
public ActionResult QR_Button_Click(string LessonCode)
{
QRCodeGenerator qrgenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrgenerator.CreateQrCode(LessonCode, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
System.Web.UI.WebControls.Image imgQRcode = new System.Web.UI.WebControls.Image();
imgQRcode.Width = 500;
imgQRcode.Height = 500;
using (Bitmap qrCodeImage = qrCode.GetGraphic(20))
{
using (MemoryStream ms = new MemoryStream())
{
qrCodeImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] byteImage = ms.ToArray();
imgQRcode.ImageUrl = "data:image/png;base64, " + Convert.ToBase64String(byteImage);
}
ViewData["QRCodeImage"] = imgQRcode.ImageUrl;
imgQRcode.Dispose();
qrCodeData.Dispose();
qrgenerator.Dispose();
qrCode.Dispose();
qrCodeData.Dispose();
return(View("TestQR"));
}
}
private void GenerateGeoLocationQr(string lat, string longi)
{
try
{
Geolocation generator = new Geolocation(lat, longi);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
var qrCodeAsBitmap = qrCode.GetGraphic(20);
if (save_image_geo)
{
using (FolderBrowserDialog f = new FolderBrowserDialog())
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeAsBitmap.Save(Path.Combine(f.SelectedPath, "qr-code-geolocation.png"));
}
}
}
GeoPic.Image = qrCodeAsBitmap;
qrGenerator.Dispose();
qrCode.Dispose();
qrCodeData.Dispose();
}
catch (Exception)
{
throw;
}
}
private void GenerateQRForBookMark(string name, string url)
{
Bookmark generator = new Bookmark(url, name);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeAsBitmap = qrCode.GetGraphic(20);
if (save_image_book == true)
{
using (FolderBrowserDialog f = new FolderBrowserDialog())
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeAsBitmap.Save(Path.Combine(f.SelectedPath, "qr-code-bookmark.png"));
}
}
}
bookPicture.Image = qrCodeAsBitmap;
qrGenerator.Dispose();
qrCode.Dispose();
qrCodeData.Dispose();
}
private void GenerateQRForUrl(string url)
{
try
{
Url generator = new Url(url);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeAsBitmap = qrCode.GetGraphic(20);
if (save_image_url == true)
{
using (FolderBrowserDialog f = new FolderBrowserDialog())
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeAsBitmap.Save(Path.Combine(f.SelectedPath, "qr-code-url.png"));
}
}
}
pictureBoxUrl.Image = qrCodeAsBitmap;
qrCode.Dispose();
qrCodeData.Dispose();
qrGenerator.Dispose();
}
catch (Exception e)
{
MetroSetMessageBox.Show(this, "An error : " + e.Message, "QR Creator");
}
}
/// <summary>
/// 生成开箱，二维码图片，并返回byte数组.
/// </summary>
/// <param name="CodeStr">.</param>
/// <returns>..</returns>
public static byte[] OpenQRCodeBytes(string CodeStr)
{
if (string.IsNullOrWhiteSpace(CodeStr))
{
return(null);
}
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(CodeStr, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(20);
Stream stream = new MemoryStream();
qrCodeImage.Save(stream, ImageFormat.Png);
qrCode.Dispose();
byte[] buffer = new byte[stream.Length];
if (stream.CanWrite)
{
stream.Write(buffer, 0, buffer.Length);
}
stream.Dispose();
return(buffer);
}
public static ImageSource GetQRCode(string Text)
{
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(Text, QRCodeGenerator.ECCLevel.L);
QRCode qrCode = new QRCode(qrCodeData);
ImageSource IS = Convert(qrCode.GetGraphic(5, "#000000", "#FFFFFF", false));
qrCode.Dispose();
GC.Collect();
return(IS);
}
private void button1_Click(object sender, EventArgs e)
{
Image barCodeImage = myBarcode.Encode(BarcodeLib.TYPE.CODE128, textBox1_barcode.Text);
pictureBox_BarCode.Image = barCodeImage;
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCode qrCode = new QRCode(qrGenerator.CreateQrCode(textBox2_qrcode.Text, QRCodeGenerator.ECCLevel.Q));
pictureBox_QRCode.Image = qrCode.GetGraphic(2, Color.Black, Color.White, false);
qrGenerator.Dispose();
qrCode.Dispose();
}
public static Image QRCodeImage(string data)
{
Image picQRCode;
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCode qrCode = new QRCode(qrGenerator.CreateQrCode(data,
QRCodeGenerator.ECCLevel.Q));
picQRCode = qrCode.GetGraphic(8, Color.Black, Color.White, false);
qrGenerator.Dispose();
qrCode.Dispose();
return(picQRCode);
}
//二维码文本 -> 二维码图片
private void getQRCodeImg(string qrCodeText, int pixelPerModel, string imgPath)
{
//QRCodeData qRCodeData = ;
QRCodeGenerator qRCodeGenerator = new QRCodeGenerator();
QRCode qrCode = new QRCode(qRCodeGenerator.CreateQrCode(qrCodeText, QRCodeGenerator.ECCLevel.M));
//Bitmap qrCodeImg = qrCode.GetGraphic(pixelPerModel);
qrCode.GetGraphic(pixelPerModel, Color.Black, Color.White, false).Save(imgPath);
//qrCodeImg.Save(imgPath);
qRCodeGenerator.Dispose();
qrCode.Dispose();
}
public IActionResult GetQrCode(string text, int size = 10)
{
var graphic = new QRCode(new QRCodeGenerator().CreateQrCode(text, QRCodeGenerator.ECCLevel.Q)).GetGraphic(size);
base.Response.Body.Dispose();
var memoryStream = new MemoryStream();
graphic.Save(memoryStream, ImageFormat.Png);
graphic.Dispose();
return(File(memoryStream.ToArray(), "image/png"));
}
void loadQR()
{
for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
{
QRCodeGenerator qr = new QRCodeGenerator();
string Name = dataGridView1.Rows[i].Cells[1].Value.ToString();
QRCode qrC = new QRCode(qr.CreateQrCode(Name, QRCodeGenerator.ECCLevel.Q));
Image QR = qrC.GetGraphic(2, Color.Black, Color.White, false);
imageListName.Images.Add(QR);
listView2.Items.Add(Name, i);
qr.Dispose();
qrC.Dispose();
}
listView2.LargeImageList = imageListName;
}
/// <summary>
/// 批量生成二维码并下载，要把生成和下载分开的原因是：在文件下载的位置查询数据库，不建议这样做
/// </summary>
/// <param name="subProjectIds"></param>
/// <param name="pixel"></param>
/// <returns></returns>
public Task SaveQrCodes(IEnumerable <Guid> subProjectIds, int pixel = 4)
{
var generator = new QRCodeGenerator();
// 生成二维码，操作时间较长，获取hash名字做临时文件夹
var hashName = MD5.Create().ComputeHash(Encoding.Default.GetBytes(DateTime.Now.ToLongTimeString()))
.ToString();
var qrFolderPath = Path.Join(_hostingEnvironment.ContentRootPath, FileItemManager.FileItemsPath, hashName);
Directory.CreateDirectory(qrFolderPath);
foreach (var id in subProjectIds)
{
// var url = "https://dotnet.holacodes.com/app/home/relational-info?id=" + id;
// 获取租户信息
var tenantId = CurrentUnitOfWork.GetTenantId();
var tenancyName = tenantId.HasValue ? _tenantManager.GetById((int)tenantId).TenancyName : null;
// 在url里面填入租户名字
var url = $"https://dotnet.holacodes.com/public;tenancyName={tenancyName}/relational-info?id=" + id;
var qrCode = new QRCode(generator.CreateQrCode(url, QRCodeGenerator.ECCLevel.M, true));
var bitmap = qrCode.GetGraphic(pixel, Color.Black, Color.White, true);
bitmap.Save(Path.Join(qrFolderPath, id + ".jpg"), ImageFormat.Jpeg);
qrCode.Dispose();
bitmap.Dispose();
}
generator.Dispose();
// 创建压缩文件
var qrZipFile = GetQrCodesZipPath();
if (File.Exists(qrZipFile))
{
File.Delete(qrZipFile);
}
System.IO.Compression.ZipFile.CreateFromDirectory(qrFolderPath, qrZipFile);
// 删除临时文件
if (Directory.Exists(qrFolderPath))
{
Directory.Delete(qrFolderPath, true);
}
return(Task.CompletedTask);
}
public static bool GenerarQRManualmente(String RFCEmisor, String RFCReceptor, String Total, String UUID, String SelloCFD, out byte[] QRRes)
{
bool Resultado = false;
String QRTexto = "https://verificacfdi.facturaelectronica.sat.gob.mx/default.aspx?&" + "id=" + UUID + "&fe=" + SelloCFD.Substring(SelloCFD.Length - 8, 8) + "&re=" + RFCEmisor + "&rr=" + RFCReceptor + "&tt=" + Total;
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(QRTexto, QRCodeGenerator.ECCLevel.M);
QRCode qrCode = new QRCode(qrCodeData);
System.IO.MemoryStream mem = new System.IO.MemoryStream();
EncoderParameters encoderParameters = new EncoderParameters(1);
encoderParameters.Param[0] = new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, 75L);
qrCode.GetGraphic(5).Save(mem, GetEncoder(ImageFormat.Jpeg), encoderParameters);
QRRes = mem.ToArray();
Resultado = true;
mem.Close();
mem.Dispose();
qrCode.Dispose();
GC.WaitForFullGCComplete();
return(Resultado);
}
private void GenerateQRFromText(string text)
{
try
{
// Creating the elements here
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(text, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(20);
// If user checks the check box saves the image with default name
if (save_image_text == true)
{
using (FolderBrowserDialog f = new FolderBrowserDialog())
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeImage.Save(Path.Combine(f.SelectedPath, "qr-code-text.png"));
}
}
}
// show image
pictureBoxText.Image = qrCodeImage;
// free ram
qrGenerator.Dispose();
qrCodeData.Dispose();
qrCode.Dispose();
}
//If ex is catched displat
//TODO : Custom Mess
// Not more showing the message but an fix for this error
catch (Exception e)
{
MetroSetMessageBox.Show(this, "An error : " + e.Message, "QR Creator");
}
}
/// <summary>
/// Creates QR code generating task and gets it.
/// </summary>
/// <param name="recipeId">Recipe Id</param>
/// <returns>QR code generation task</returns>
private Task GetCreateTask(string recipeId)
{
var task = new Task(() =>
{
var qrCodeData = this._qrGenerator.CreateQrCode(recipeId, QRCodeGenerator.ECCLevel.Q);
var qrCode = new QRCode(qrCodeData);
var qrImage = qrCode.GetGraphic(20);
var fileStream = File.Create($@"{this._path}\{recipeId}.jpg");
qrImage.Save(fileStream, ImageFormat.Jpeg);
fileStream.Dispose();
qrImage.Dispose();
qrCode.Dispose();
qrCodeData.Dispose();
});
task.Start();
return(task);
}
/// <summary>
/// QRコード生成処理
/// </summary>
/// <param name="pURL"></param>
/// <returns></returns>
private BitmapFrame CreateQRCode(string pURL)
{
// 処理結果
BitmapFrame eResult = null;
// ジェネレーターオブジェクト生成
var eQRCodeGenerator = new QRCodeGenerator();
// QRコードオブジェクト生成
var eQRCodeData = eQRCodeGenerator.CreateQrCode(pURL, QRCodeGenerator.ECCLevel.Q);
var eQRCode = new QRCode(eQRCodeData);
// Bitmap変換
var eBitmapQrCode = eQRCode.GetGraphic(20);
// リサイズ
var eBitmap = new Bitmap(eBitmapQrCode, 350, 350);
// QRコードオブジェクト破棄
eQRCode.Dispose();
// 画像の表示
using (var eStream = new MemoryStream()) {
eBitmap.Save(eStream, ImageFormat.Bmp);
eStream.Seek(0, SeekOrigin.Begin);
eResult = BitmapFrame.Create(eStream, BitmapCreateOptions.None, BitmapCacheOption.OnLoad);
}
return(eResult);
}
private void GenerateQRForWifi(string name, string password, string auth)
{
try
{
using (FolderBrowserDialog f = new FolderBrowserDialog())
{
// if this is empty then this will not execute :
// TODO : Check the pass only on WPA or WEP
if (auth == "nopass")
{
WiFi generator = new WiFi(name, password, WiFi.Authentication.nopass);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeAsBitmap = qrCode.GetGraphic(20);
if (save_image_wifi == true)
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeAsBitmap.Save(Path.Combine(f.SelectedPath, "qr-code-wifi-no-pass.png"));
}
}
pictureBoxWifi.Image = qrCodeAsBitmap;
//free ram
qrGenerator.Dispose();
qrCodeData.Dispose();
qrCode.Dispose();
Clear();
}
else if (auth == "WPA")
{
WiFi generator = new WiFi(name, password, WiFi.Authentication.WPA);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeAsBitmap = qrCode.GetGraphic(20);
if (save_image_wifi == true)
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeAsBitmap.Save(Path.Combine(f.SelectedPath, "qr-code-wifi-pass.png"));
}
}
pictureBoxWifi.Image = qrCodeAsBitmap;
qrGenerator.Dispose();
qrCodeData.Dispose();
qrCode.Dispose();
Clear();
}
else if (auth == "WEP")
{
WiFi generator = new WiFi(name, password, WiFi.Authentication.WEP);
string payload = generator.ToString();
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(payload, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeAsBitmap = qrCode.GetGraphic(20);
if (save_image_wifi == true)
{
if (f.ShowDialog() == DialogResult.OK)
{
qrCodeAsBitmap.Save(Path.Combine(f.SelectedPath, "qr-code-wifi-pass.png"));
}
}
pictureBoxWifi.Image = qrCodeAsBitmap;
qrGenerator.Dispose();
qrCodeData.Dispose();
qrCode.Dispose();
Clear();
}
}
}
catch (Exception e)
{
MetroSetMessageBox.Show(this, "An error : " + e.Message, "QR Creator");
}
}
