public async Task <IActionResult> DownloadMchQRCode()
{
string activityNo = this.GetActivityNo();
var(mchList, total) = await _operatApplication.MchList(activityNo, "", 1, 1000);
if (total <= 0)
{
return(BadRequest("未找到商户！"));
}
string dateName = DateTime.Now.ToString("yyyyMMddHHmmss");
string filePath = $"{_hostingEnvironment.WebRootPath}/Image/Wish/{dateName}/";
if (!Directory.Exists(filePath))
{
Directory.CreateDirectory(filePath);
}
foreach (var data in mchList)
{
string path = $@"pages/conversion/index?mchNo={data.mchNo}";
await WxAppApi.GetWxaCodeAsync(_wxOpenAppId, string.Concat(filePath, data.mchName, ".jpeg"), path);
}
string zipPath = $"/File/Wish/";
string zipPathName = $"{zipPath}{dateName}.zip";
string zipPathDir = _hostingEnvironment.WebRootPath + zipPath;
if (!Directory.Exists(zipPathDir))
{
Directory.CreateDirectory(zipPathDir);
}
try
{
ZipFile.CreateFromDirectory(filePath, $"{_hostingEnvironment.WebRootPath}{zipPathName}");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(BadRequest("压缩错误 ！"));
}
if (Directory.Exists(filePath))
{
Directory.Delete(filePath, true);
}
return(File(zipPathName, "application/zip", $"商户核销码-{dateName}.zip"));
}
public async Task <IActionResult> GetQRCode(string path)
{
//var memberId = this.GetMemberId();
////Console.WriteLine("memberId=={1} path1:{0}", path, memberId);
//var stream = new MemoryStream();
//path = HttpUtility.UrlDecode(path);
////Console.WriteLine("memberId=={1} path2:{0}", path, memberId);
//await WxAppApi.GetWxaCodeAsync(_wxOpenAppId, stream, path);
////必须将流的当前位置置0，否则将引发异常
////如果不设置为0，则流的当前位置在流的末端，然后读流就会从末端开始读取，就会引发无效操作异常System.InvalidOperationException
////System.InvalidOperationException: Response Content-Length mismatch: too few bytes written (0 of xxxx)
//stream.Position = 0;
//return new FileStreamResult(stream, "image/gif");
path = HttpUtility.UrlDecode(path);
using (var ms = new MemoryStream())
{
await WxAppApi.GetWxaCodeAsync(_wxOpenAppId, ms, path);
return(File(ms.GetBuffer(), "image/jpeg"));
}
}
