我一直在关注本教程以支持将文件上传作为 MVC4 的 WebAPI 的一部分:http: //blogs.msdn.com/b/henrikn/archive/2012/03/01/file-upload-and-asp-net-web -api.aspx。
当我的控制器收到请求时,它会抱怨“MIME 多部分消息不完整。”。有人对如何调试有任何提示吗?我尝试将流的位置重置为 0,因为在它击中处理程序之前有其他东西在读取它。
我的 HTML 如下所示:
<form action="/api/giggl" method="post" enctype="multipart/form-data">
<span>Select file(s) to upload :</span>
<input id="file1" type="file" multiple="multiple" />
<input id="button1" type="submit" value="Upload" />
</form>
和我的控制器的 Post 方法是这样的:
public Task<IEnumerable<string>> Post()
{
if (Request.Content.IsMimeMultipartContent())
{
Stream reqStream = Request.Content.ReadAsStreamAsync().Result;
if (reqStream.CanSeek)
{
reqStream.Position = 0;
}
string fullPath = HttpContext.Current.Server.MapPath("~/App_Data");
var streamProvider = new MultipartFormDataStreamProvider(fullPath);
var task = Request.Content.ReadAsMultipartAsync(streamProvider).ContinueWith(t =>
{
if (t.IsFaulted || t.IsCanceled)
Request.CreateErrorResponse(HttpStatusCode.InternalServerError, t.Exception);
var fileInfo = streamProvider.FileData.Select(i =>
{
var info = new FileInfo(i.LocalFileName);
return "File uploaded as " + info.FullName + " (" + info.Length + ")";
});
return fileInfo;
});
return task;
}
else
{
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotAcceptable, "Invalid Request!"));
}
}
我错过了什么明显的东西吗?>