/// <summary>
/// 生成小程序码方法
/// </summary>
/// <param name="param"></param>
public void CreateQrCode(WxPayData param, string httpUrl, ref string imageUrl)
{
try
{
System.Net.HttpWebRequest request;
request = (System.Net.HttpWebRequest)WebRequest.Create(httpUrl);
request.Method = "POST";
request.ContentType = "application/json;charset=UTF-8";
string paraUrlCoded = param.ToJson();
byte[] payload;
payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
request.ContentLength = payload.Length;
Stream writer = request.GetRequestStream();
writer.Write(payload, 0, payload.Length);
writer.Close();
System.Net.HttpWebResponse response;
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.Stream s;
s = response.GetResponseStream(); //返回图片数据流
byte[] tt = ShopCommon.StreamToBytes(s); //将数据流转为byte[]
//在文件名前面加上时间，以防重名
string imgName = "xcx_" + Guid.NewGuid().ToString() + ".png";
//文件存储相对于当前应用目录的虚拟目录
string path = "/upload/qrcode/";
//获取相对于应用的基目录,创建目录
string imgPath = System.AppDomain.CurrentDomain.BaseDirectory + path; //通过此对象获取文件名
if (!Directory.Exists(imgPath))
{
Directory.CreateDirectory(imgPath);
}
//System.IO.File.WriteAllBytes(Server.MapPath(path + imgName), tt);//讲byte[]存储为图片
#region Png
MemoryStream stream = new MemoryStream(tt);
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
img.Save(Server.MapPath(path + imgName), System.Drawing.Imaging.ImageFormat.Png);
#endregion
imageUrl = path + imgName;
}
catch (Exception e)
{
Log.Error("CreateQrCode", e.ToString());
}
}
/// <summary>
/// 生成小程序二维码
/// 带参数（商品Id），扫码进入小程序商品详情页
/// </summary>
/// <param name="pid">商品Id</param>
/// <param name="imageName">生成的二维码相对路径+名称</param>
/// <param name="oldImage">原二维码相对路径+名称</param>
private void CreateMiniProgramCode(int pid, ref string imageName, string oldImage = "")
{
if (pid > 0)
{
string access_token = XcxApi.Pay.WxGetInfo.IsExistAccess_Token();
string url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token=" + access_token;
XcxApi.Pay.WxPayData jsondata = new XcxApi.Pay.WxPayData();
jsondata.SetValue("scene", pid);
jsondata.SetValue("page", "pages/product/detail");
jsondata.SetValue("width", 430);
try
{
#region 除原图
if (!string.IsNullOrWhiteSpace(oldImage))
{
if (File.Exists(Server.MapPath(oldImage)))
{
File.Delete(Server.MapPath(oldImage));
}
}
#endregion
System.Net.HttpWebRequest request;
request = (System.Net.HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "application/json;charset=UTF-8";
string paraUrlCoded = jsondata.ToJson();
byte[] payload;
payload = System.Text.Encoding.UTF8.GetBytes(paraUrlCoded);
request.ContentLength = payload.Length;
Stream writer = request.GetRequestStream();
writer.Write(payload, 0, payload.Length);
writer.Close();
System.Net.HttpWebResponse response;
response = (System.Net.HttpWebResponse)request.GetResponse();
System.IO.Stream s;
s = response.GetResponseStream(); //返回图片数据流
byte[] tt = ShopCommon.StreamToBytes(s); //将数据流转为byte[]
//在文件名前面加上时间，以防重名
string imgName = "xcx_" + Guid.NewGuid().ToString() + ".png";
//文件存储相对于当前应用目录的虚拟目录
string path = "/upload/qrcode/";
//获取相对于应用的基目录,创建目录
string imgPath = System.AppDomain.CurrentDomain.BaseDirectory + path; //通过此对象获取文件名
if (!Directory.Exists(imgPath))
{
Directory.CreateDirectory(imgPath);
}
//System.IO.File.WriteAllBytes(Server.MapPath(path + imgName), tt);//讲byte[]存储为图片
#region Png
MemoryStream stream = new MemoryStream(tt);
System.Drawing.Image img = System.Drawing.Image.FromStream(stream);
img.Save(Server.MapPath(path + imgName), System.Drawing.Imaging.ImageFormat.Png);
#endregion
imageName = path + imgName;
}
catch (Exception e)
{
XcxApi.Pay.Log.Error("CreateProductMiniProgramQrCode", e.ToString());
}
}
}
