using QRCoder;
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
namespace SIP.Common
{
/// <summary>
/// 二维码
/// </summary>
public static class QrCodeQrCodeHelper
{
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="data"></param>
/// <returns></returns>
public static Image CreteQr(string data)
{
QRCodeGenerator qrGenerator = new QRCodeGenerator();
QRCodeData qrCodeData = qrGenerator.CreateQrCode(data, QRCodeGenerator.ECCLevel.Q);
QRCode qrCode = new QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(20);
return qrCodeImage;
}
/// <summary>
///
/// </summary>
/// <param name="qr"></param>
/// <param name="front"></param>
/// <param name="botton"></param>
/// <returns></returns>
public static Image AddName(Image qr, string front, string botton)
{
Graphics g = Graphics.FromImage(qr);
if (!string.IsNullOrWhiteSpace(front))
{
Font fontf = new Font("黑体", 40);
SolidBrush sbrushf = new SolidBrush(Color.Black);
g.DrawString(front, fontf, sbrushf, new Point(335, 25));
MemoryStream msf = new MemoryStream();
qr.Save(msf, ImageFormat.Bmp);
}
Font font = new Font("黑体", 20);
SolidBrush sbrush = new SolidBrush(Color.Black);
int height = qr.Height - 80 + 10;
int index = 1;
int count = 15;
while (true)
{
int length = botton.Length < index * count ? botton.Length - (index - 1) * count : count;
string str = botton.Substring((index - 1) * count, length);
g.DrawString(str, font, sbrush, new Point(150, height + ((index - 1) * 25)));
MemoryStream ms = new MemoryStream();
qr.Save(ms, ImageFormat.Bmp);
if (botton.Length < index * count)
break;
index++;
}
return qr;
}
/// <summary>
/// 获取二维码图片
/// </summary>
/// <param name="data">数据</param>
/// <param name="name">二维码名称</param>
/// <returns></returns>
public static Image GetQr(string data, string front, string bottom)
{
Image qr = CreteQr(data);
qr = AddName(qr, front, bottom);
return qr;
}
}
}
//调用的地方
string filename = DateTime.Now.ToString("yyyyMMddHHMssffff");
string filepath = FileHelper.GetAbsolutePath("/temp/qrcode/" + filename + "/");
if (Directory.Exists(filepath))
{
Directory.Delete(filepath);
}
else
{
Directory.CreateDirectory(filepath);
}
var list = _iEquipmentService.GetPageAdmin(view, out total).ToList();
for (int i = 0; i < list.Count; i++)
{
var p = list[i];
var img = QrCodeQrCodeHelper.GetQr(p.Code, p.AssetCode, p.Name);
img.Save(filepath + p.AssetCode + ".jpeg", System.Drawing.Imaging.ImageFormat.Jpeg);
}
string fn = filepath + filename + ".zip";
DotNetZipHelper.ZipFolder(filepath, fn, "设备二维码", "设备二维码");
//下载文件
FileDown d = new FileDown();
d.DownLoad(fn);
//删除文件
System.IO.FileInfo file = new System.IO.FileInfo(fn);
if (file.Exists)
file.Delete();
return Json(new { bl = true });
