//生成中文二维码-支持中文(自定义大小)
//暂时未完善 只定义了背景大小
static void Generate(string url, string filename, string savapath, ImgType type = ImgType.Png, int?width = null, int?high = null)
{
QrEncoder qrEncoder = new QrEncoder();
var qrCode = qrEncoder.Encode(url);
//保存成png文件
//string filename = @"H:\桌面\截图\cn.png";
string suffix = ImgSuffix.Getsuffix(type);; //后缀
filename = $"{savapath}{filename}{suffix}";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
int w = 500;
int h = 500;
if (width != null)
{
w = (int)width;
}
if (high != null)
{
h = (int)high;
}
Bitmap map = new Bitmap(w, h);
Graphics g = Graphics.FromImage(map);
g.FillRectangle(Brushes.White, 0, 0, w, h);
render.Draw(g, qrCode.Matrix, new Point(20, 20));
map.Save(filename, ImageFormat.Png);
}
/// <summary>
/// 二维码生成
/// </summary>
/// <param name="url">二维码网站地址或者数据</param>
/// <param name="filename">文件名</param>
/// <param name="savapath">保存地址</param>
/// <param name="type">图片格式</param>
public static void Generate(string url, string filename, string savapath, ImgType type = ImgType.Png)
{
QrEncoder qrEncoder = new QrEncoder();
var qrCode = qrEncoder.Encode(url);
//保存成png文件
//string filename = @"H:\桌面\截图\url.png";
string suffix = ImgSuffix.Getsuffix(type);; //后缀
if (!Directory.Exists(savapath))
{
Directory.CreateDirectory(savapath);
}
filename = $"{savapath}{filename}{suffix}";
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
using (FileStream stream = new FileStream(filename, FileMode.Create))
{
render.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
}
}
/// </summary>
/// 文本内容
/// <param name="text">只支持数字 只支持偶数个 最大长度80</param>
/// <param name="serverPth">存储路径 @"H:\桌面\截图\"</param>
/// <param name="filename">文件名不带后缀</param>
/// <param name="type">文件格式</param>
/// <param name="width">宽度比例3</param>
/// <param name="hight">高度比例1</param>
public static void Generate2(string text, string serverPth, string filename, ImgType type, /*ImageFormat imgFrt,*/ int?width = null, int?hight = null)
{
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_128;
int w = 150;
int h = 50;
if (width != null)
{
w = (int)width;
}
if (hight != null)
{
h = (int)hight;
}
EncodingOptions options = new EncodingOptions()
{
Width = w,
Height = h,
Margin = 2
};
writer.Options = options;
Bitmap map = writer.Write(text);
string suffix = ImgSuffix.Getsuffix(type);; //后缀
if (!Directory.Exists(serverPth))
{
Directory.CreateDirectory(serverPth);
}
filename = $"{serverPth}{filename}{suffix}";//请注意 保存格式和文件扩展名一致性
map.Save(filename);
}
/// <summary>
/// 生成带Logo的二维码
/// </summary>
/// <param name="text">文本内容</param>
public static void Generate(string text, string LogoPth, string serverPth, string filename, ImgType type, /* ImageFormat imgFrt,*/ int?width = null, int?hight = null)
{
try
{
//Logo 图片
Bitmap logo = new Bitmap(LogoPth);
//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);
int w = 300;
int h = 300;
if (width != null)
{
w = (int)width;
}
if (hight != null)
{
h = (int)hight;
}
//生成二维码
ZXing.Common.BitMatrix bm = writer.encode(text, BarcodeFormat.QR_CODE, w, h, hint);
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] / 3.5), logo.Width);
int middleH = Math.Min((int)(rectangle[3] / 3.5), logo.Height);
int middleL = (map.Width - middleW) / 2;
int middleT = (map.Height - middleH) / 2;
//将img转换成bmp格式，否则后面无法创建Graphics对象
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);
}
//将二维码插入图片
Graphics myGraphic = Graphics.FromImage(bmpimg);
//白底
myGraphic.FillRectangle(Brushes.White, middleL, middleT, middleW, middleH);
myGraphic.DrawImage(logo, middleL, middleT, middleW, middleH);
string suffix = ImgSuffix.Getsuffix(type);; //后缀
if (!Directory.Exists(serverPth))
{
Directory.CreateDirectory(serverPth);
}
//保存成图片
bmpimg.Save($"{serverPth}{filename}{suffix}");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
