public dynamic Upload(UploadFileDto model)
{
return(UploadAsync(model).Result);
}
public async Task <dynamic> UploadAsync([FromUri] UploadFileDto model)
{
return(await UploadAsync(Request, model));
}
private async Task <dynamic> UploadAsync(HttpRequestMessage request, UploadFileDto model)
{
if (request == null)
{
throw new ArgumentNullException("request");
}
if (model == null)
{
throw new ArgumentNullException("model");
}
// Check if the request contains multipart/form-data.
bool isMime = request.Content.IsMimeMultipartContent();
if (!isMime)
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
try
{
var mr = new MessageResult();
var fileUrls = new List <string>();
var provider = new MultipartMemoryStreamProvider();
await request.Content.ReadAsMultipartAsync(provider);
foreach (HttpContent content in provider.Contents)
{
//now read individual part into STREAM
var stream = await content.ReadAsStreamAsync();
if (stream.Length != 0)
{
string fileName = GetFileName(content.Headers);
if (fileName == null)
{
continue;
}
string extension = GetFileExtension(fileName);
bool isAllowed = CheckAllowedExtensions(extension);
if (!isAllowed)
{
throw new NotSupportedException("不支持的文件格式：" + extension);
}
//var virtualPathRoot = request.GetRequestContext().VirtualPathRoot;
var server = HttpContext.Current.Server;
//var saveFolder = server.MapPath("~/App_Data/uploads");
var saveFolder = server.MapPath(model.VirtualFolder);
if (!string.IsNullOrWhiteSpace(model.FileName))
{
fileName = model.FileName;
}
var savePath = Path.Combine(saveFolder, fileName);
//Deletion exists file
if (File.Exists(savePath))
{
File.Delete(savePath);
}
MakeSureFolderExist(saveFolder);
using (Stream saveFileStream = File.OpenWrite(savePath))
{
await stream.CopyToAsync(saveFileStream);
stream.Close();
}
}
else
{
fileUrls.Add(null);
}
}
mr.Message = "上传完成";
mr.Success = true;
mr.Data = fileUrls;
return(mr);
}
catch (Exception ex)
{
return(request.CreateErrorResponse(HttpStatusCode.InternalServerError, ex));
}
}