从HttpRequestMessage:controller下载zip文件

时间:2014-01-13 14:50:27

标签: asp.net asp.net-mvc asp.net-web-api

我正在使用ASP.NET MVC开发一个web api,下载 HttpRequestMessage

中附带的 zip文件

如下

 var task = this.Request.Content.ReadAsStreamAsync();
            task.Wait();

            if (this.Request.Content.IsMimeMultipartContent())
            {

                using (Stream requestStream = task.Result)
                {
                     // Do not know how to copy the above request to file stream or zip (ionic zip) and generate zip file from it
                 }
            }

请注意:

1)

using (var fileStream = File.Create("name.zip"))
                        {
                            requestStream.CopyTo(fileStream);
                        }

创建无效的zip ..

2)Zip里面包含很多文件。

等待你的意见

更新1:

 var provider = new MultipartFormDataStreamProvider(ScriptPath);

                Request.Content.ReadAsMultipartAsync(provider);                

                foreach (MultipartFileData file in provider.FileData)
                {

                    Trace.Write(file.Headers.ContentDisposition.FileName);
                   Trace.Write("Server file path: " + ScriptPath);

                }

虽然没有帮助我

1 个答案:

答案 0 :(得分:0)

这对我有用。请视为伪,因为我没有编译它。 此外,您可能需要重新设置阻止.Result调用以利用异步读取。

var requestStream = await Request.Content.ReadAsMultipartAsync();

HttpContent fileContent = requestStream.Contents.SingleOrDefault(c => c.Headers.ContentType != null);

byte[] fileBytes = await fileContent.ReadAsByteArrayAsync();
using (FileStream fs = File.OpenWrite(outputPath))
{
    fs.Write(fileBytes, 0, (int)fileContent.Headers.ContentLength.Value);
}