我有在其他线程中看到的以下代码,但它实际上没有显示如何将 MultipartFileData 文件保存到磁盘。
[HttpPost]
public Task<HttpResponseMessage> PostFormData()
{
// Check if the request contains multipart/form-data.
if (!Request.Content.IsMimeMultipartContent())
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
string root = HttpContext.Current.Server.MapPath(Settings.AssetImageTempStorage);
var provider = new MultipartFormDataStreamProvider(root);
// Read the form data and return an async task.
var task = Request.Content.ReadAsMultipartAsync(provider).
ContinueWith<HttpResponseMessage>(t =>
{
if (t.IsFaulted || t.IsCanceled)
{
Request.CreateErrorResponse(HttpStatusCode.InternalServerError, t.Exception);
}
// This illustrates how to get the file names.
foreach (MultipartFileData file in provider.FileData)
{
// HOW DO I SAVE THIS FILE TO DISK HERE ???
Trace.WriteLine(file.Headers.ContentDisposition.FileName);
Trace.WriteLine("Server file path: " + file.LocalFileName);
}
return Request.CreateResponse(HttpStatusCode.OK);
});
return task;
}
最佳答案
这是在服务器中保存文件的示例。希望这会对您有所帮助。
public class TestController : ApiController
{
const string StoragePath = @"T:\WebApiTest";
public async Task<HttpResponseMessage> Post()
{
if (Request.Content.IsMimeMultipartContent())
{
var streamProvider = new MultipartFormDataStreamProvider(Path.Combine(StoragePath, "Upload"));
await Request.Content.ReadAsMultipartAsync(streamProvider);
foreach (MultipartFileData fileData in streamProvider.FileData)
{
if (string.IsNullOrEmpty(fileData.Headers.ContentDisposition.FileName))
{
return Request.CreateResponse(HttpStatusCode.NotAcceptable, "This request is not properly formatted");
}
string fileName = fileData.Headers.ContentDisposition.FileName;
if (fileName.StartsWith("\"") && fileName.EndsWith("\""))
{
fileName = fileName.Trim('"');
}
if (fileName.Contains(@"/") || fileName.Contains(@"\"))
{
fileName = Path.GetFileName(fileName);
}
File.Move(fileData.LocalFileName, Path.Combine(StoragePath, fileName));
}
}
return Request.CreateResponse(HttpStatusCode.OK);
}
else
{
return Request.CreateResponse(HttpStatusCode.NotAcceptable, "This request is not properly formatted");
}
}
关于c#-4.0 - 将 MultipartFileData 文件保存到磁盘,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/20349364/