/// <summary>
/// 文件下载（返回Base64）
/// </summary>
/// <returns>文件Base64</returns>
public DownloadFileRes DownloadFileBase64(OpenFileModel model)
{
DownloadFileRes downloadFile = new DownloadFileRes();
try
{
var downloadRes = GetDownloadFileStream(model);
if (downloadRes.ErrorCode > 0)
{
downloadFile.ErrorCode = downloadRes.ErrorCode;
downloadFile.ErrorDetail = downloadRes.ErrorDetail;
return(downloadFile);
}
using (MemoryStream memstream = new MemoryStream())
{
const int bufferLen = 10 * 1024 * 1024;
byte[] buffer = new byte[bufferLen];
int count = 0;
while ((count = downloadRes.Stream.Read(buffer, 0, buffer.Length)) > 0)
{
memstream.Write(buffer, 0, count);
}
downloadFile.FileValue = Convert.ToBase64String(memstream.ToArray());
}
downloadFile.ErrorCode = 0;
return(downloadFile);
}
catch (Exception ex)
{
_log.Debug($"DownloadFileBase64 Exception: {ex.Message}");
throw ex;
}
}
/// <summary>
/// 文件下载（返回路径）
/// </summary>
/// <returns>文件路径</returns>
public DownloadFileRes FileDownload(OpenFileModel model, string savePath)
{
DownloadFileRes downloadFile = new DownloadFileRes();
try
{
var downloadRes = GetDownloadFileStream(model);
if (downloadRes.ErrorCode > 0)
{
downloadFile.ErrorCode = downloadRes.ErrorCode;
downloadFile.ErrorDetail = downloadRes.ErrorDetail;
return(downloadFile);
}
if (!string.IsNullOrEmpty(model.Rev))
{
savePath = $"{savePath}\\{model.Rev}";
}
//如果不存在，创建它
if (!Directory.Exists(savePath))
{
Directory.CreateDirectory(savePath);
}
// 文件全路径
string filePath = $"{savePath}\\{downloadRes.FileName}";
//写入数据
using (FileStream fs = new FileStream(filePath, FileMode.OpenOrCreate))
{
const int bufferLen = 10 * 1024 * 1024;
byte[] buffer = new byte[bufferLen];
int count = 0;
while ((count = downloadRes.Stream.Read(buffer, 0, bufferLen)) > 0)
{
fs.Write(buffer, 0, count);
}
fs.Dispose();
}
downloadFile.FileValue = filePath;
downloadFile.ErrorCode = 0;
return(downloadFile);
}
catch (Exception ex)
{
_log.Debug($"FileDownload Exception: {ex.Message}");
throw ex;
}
}
