/// <summary>
/// 下载文件
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
public HttpResponseMessage GetFile(string fileName)
{
if (!FileProvider.Exists(fileName))
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
long fileLength = FileProvider.GetLength(fileName);
var fileInfo = GetFileInfoFromRequest(this.Request, fileLength);
//获取剩余部分文件流
var stream = new PartialContentFileStream(FileProvider.Open(fileName),
fileInfo.From, fileInfo.To);
var response = new HttpResponseMessage();
response.Content = new StreamContent(stream, BufferSize);
SetResponseHeaders(response, fileInfo, fileLength, fileName);
return(response);
}
public IActionResult GetFile()
{
string fileName = @"D:\Files\BI_V2.0.zip";
if (!FileUtil.IsExistFile(fileName))
{
return(new StatusCodeResult(StatusCodes.Status404NotFound));
}
//获取下载文件长度
var fileLength = FileUtil.GetLength(fileName);
//初始化下载文件信息
var fileInfo = _downloadServices.GetFileInfoFromRequest(_contextAccessor.HttpContext.Request, fileLength);
//获取剩余部分文件流
var stream = new PartialContentFileStream(FileUtil.GetStreamFrom(fileName), fileInfo.From, fileInfo.To);
var contentType = MimeMappingUtil.GetMimeMapping(fileName);
//设置响应 请求头
_downloadServices.SetResponseHeaders(_contextAccessor.HttpContext.Response, fileInfo, contentType, fileLength, fileName);
return(new FileStreamResult(stream, new Microsoft.Net.Http.Headers.MediaTypeHeaderValue(contentType)));
}
public HttpResponseMessage GetFileResponse(string filePath)
{
var bytes = HttpServerUtility.UrlTokenDecode(filePath);
var path = HttpUtility.UrlDecode(bytes, Encoding.UTF8);
if (string.IsNullOrEmpty(path) || !File.Exists(path))
{
throw new HttpResponseException(HttpStatusCode.NotFound);
}
var fileName = Path.GetFileName(path);
var fielStream = File.Open(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
long fileLength = fielStream.Length;
var fileInfo = GetFileByRequest(Request, fileLength);
//获取剩余部分文件流
var stream = new PartialContentFileStream(fielStream, fileInfo.From, fileInfo.To);
var response = new HttpResponseMessage {
Content = new StreamContent(stream, BufferSize)
};
SetResponseHeaders(response, fileInfo, fileLength, fileName);
return(response);
}
public IActionResult GetFile(string fileName)
{
fileName = "cn_windows_8_1_x64_dvd_2707237.iso";
if (!_fileProvider.Exists(fileName))
{
return(new StatusCodeResult(StatusCodes.Status404NotFound));
}
//获取下载文件长度
var fileLength = _fileProvider.GetLength(fileName);
//初始化下载文件信息
var fileInfo = GetFileInfoFromRequest(_context.Request, fileLength);
//获取剩余部分文件流
var stream = new PartialContentFileStream(_fileProvider.Open(fileName),
fileInfo.From, fileInfo.To);
//设置响应 请求头
SetResponseHeaders(_context.Response, fileInfo, fileLength, fileName);
return(new FileStreamResult(stream, new MediaTypeHeaderValue(MimeType)));
}
