/// <summary>
/// 保存附件信息到数据库
/// </summary>
/// <param name="provider"></param>
/// <param name="folder">保存文件夹</param>
/// <returns></returns>
private Attachment SaveAttchment(PoseidonMultipartFormDataStreamProvider provider, string folder)
{
MultipartFileData file = provider.FileData[0];
Attachment attachment = new Attachment();
attachment.FileName = Path.GetFileName(file.LocalFileName);
attachment.OriginName = file.Headers.ContentDisposition.FileName;
attachment.Extension = Path.GetExtension(file.LocalFileName);
attachment.ContentType = file.Headers.ContentType.MediaType;
attachment.UploadTime = DateTime.Now;
attachment.Size = new FileInfo(file.LocalFileName).Length;
attachment.Folder = folder;
attachment.MD5Hash = Hasher.GetFileMD5Hash(file.LocalFileName);
if (file.Headers.Contains("md5hash"))
{
string md5 = file.Headers.GetValues("md5hash").ToList().First();
if (attachment.MD5Hash != md5)
{
throw new Exception("文件哈希计算不匹配");
}
}
attachment.Name = provider.FormData["name"];
attachment.Remark = provider.FormData["remark"];
BusinessFactory <AttachmentBusiness> .Instance.Create(attachment);
return(attachment);
}
public async Task <HttpResponseMessage> PostFileDataAsync()
{
// Check if the request contains multipart/form-data.
if (!Request.Content.IsMimeMultipartContent())
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
string root = AppConfig.GetAppSetting("UploadPath");
var folder = GeneratePath();
var path = HttpContext.Current.Server.MapPath("~" + root + "//" + folder);
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
var provider = new PoseidonMultipartFormDataStreamProvider(path);
try
{
// Read the form data.
await Request.Content.ReadAsMultipartAsync(provider);
if (provider.FileData.Count == 0)
{
return(Request.CreateResponse(HttpStatusCode.Forbidden));
}
var attachment = SaveAttchment(provider, folder);
return(Request.CreateResponse(HttpStatusCode.OK, attachment));
}
catch (System.Exception e)
{
return(Request.CreateErrorResponse(HttpStatusCode.InternalServerError, e));
}
}