/// <summary>
/// 创建二维码返回Base64字符串
/// </summary>
/// <param name="plainText">二维码内容</param>
public static string CreateQRCodeToBase64(QRCodeCreateEntity qRCodeCreateEntity)
{
try
{
string result = "";
MemoryStream ms = ChangeToStream(qRCodeCreateEntity);
byte[] arr = new byte[ms.Length];
ms.Position = 0;
ms.Read(arr, 0, (int)ms.Length);
ms.Close();
if (qRCodeCreateEntity.DrawQuietZones)
{
result = "data:image/jpeg;base64," + Convert.ToBase64String(arr);
}
else
{
result = Convert.ToBase64String(arr);
}
return(result);
}
catch (Exception ex)
{
throw new Exception("创建二维码返回Base64字符串方法异常", ex);
}
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="qRCodeCreateEntity"></param>
/// <returns></returns>
public static Bitmap CreateCodeToBitmap(QRCodeCreateEntity qRCodeCreateEntity)
{
Bitmap icon = null;
if (string.IsNullOrEmpty(qRCodeCreateEntity.ContextText))
{
return(null);
}
// 如果有Icon则添加
if (qRCodeCreateEntity.IconSource != null && qRCodeCreateEntity.IconSource.Length > 0)
{
Stream stream = new MemoryStream(qRCodeCreateEntity.IconSource);
icon = new Bitmap(stream);
}
QRCodeGenerator qrGenerator = new QRCodeGenerator();
//QRCodeGenerator.ECCLevel:纠错能力,Q级：约可纠错25%的数据码字
QRCodeData qrCodeData = qrGenerator.CreateQrCode(qRCodeCreateEntity.ContextText, QRCodeGenerator.ECCLevel.Q);
QRCode qrcode = new QRCode(qrCodeData);
// 将十六进制颜色码转化为Color对象
Color darkColor = ColorTranslator.FromHtml(qRCodeCreateEntity.DarkColor);
Color lightColor = ColorTranslator.FromHtml(qRCodeCreateEntity.LightColor);
// 生成二维码
Bitmap qrCodeImage = qrcode.GetGraphic(qRCodeCreateEntity.PixelsPerModule, darkColor, lightColor,
icon, qRCodeCreateEntity.IconSizePercent, qRCodeCreateEntity.IconBorderWidth, qRCodeCreateEntity.DrawQuietZones);
return(qrCodeImage);
}
/// <summary>
/// 创建二维码返回文件路径名称
/// </summary>
/// <param name="qRCodeCreateEntity">二维码内容</param>
public static string CreateQRCodeToFile(QRCodeCreateEntity qRCodeCreateEntity)
{
try
{
// => 设置生成文件相关信息
string fileName = "";
//二维码文件目录
string filePath = @"C:/Images/QR/";
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
//创建二维码文件路径名称
fileName = filePath + DateTime.Now.ToString("yyyyMMddHHmmss") + ".jpg";
// => 创建二维码
Bitmap qrCodeImage = CreateCodeToBitmap(qRCodeCreateEntity);
qrCodeImage.Save(fileName, ImageFormat.Jpeg);
return(fileName);
}
catch (Exception ex)
{
throw new Exception("创建二维码返回文件路径名称方法异常", ex);
}
}
/// <summary>
/// 二维码将Bitmap转化为Stream
/// </summary>
/// <param name="qRCodeCreateEntity"></param>
/// <returns></returns>
public static MemoryStream ChangeToStream(QRCodeCreateEntity qRCodeCreateEntity)
{
Bitmap qrCodeImage = CreateCodeToBitmap(qRCodeCreateEntity);
MemoryStream memoryStream = new MemoryStream();
qrCodeImage.Save(memoryStream, ImageFormat.Jpeg);
return(memoryStream);
}
/// <summary>
/// 创建二维码返回byte数组
/// </summary>
/// <param name="qRCodeCreateEntity">二维码内容</param>
public static byte[] CreateQRCodeToBytes(QRCodeCreateEntity qRCodeCreateEntity)
{
try
{
MemoryStream ms = ChangeToStream(qRCodeCreateEntity);
byte[] arr = new byte[ms.Length];
ms.Position = 0;
ms.Read(arr, 0, (int)ms.Length);
ms.Close();
return(arr);
}
catch (Exception ex)
{
throw new Exception("创建二维码返回byte数组方法异常", ex);
}
}