如何zip文件发送到ASP.NET的WebAPI [英] How to send zip files to ASP.NET WebApi

问题描述

我不知道我怎么可以发送一个压缩文件到的WebAPI控制器，​​反之亦然。
的问题是，我的WebAPI使用JSON来传输数据。一个zip文件不可序列化，无论是流。一个字符串是序列化的。但是，必须有一个其他的解决办法，而不是压缩转换为字符串，比发送字符串。这听起来是错误的。

I'm wondering how I can send a zip file to a WebApi controller and vice versa. The problem is that my WebApi uses json to transmit data. A zip file is not serializable, either is a stream. A string would be serializable. But there has to be an other solution than to convert the zip into a string and than send the string. That just sounds wrong.

任何想法如何做到这一点？

Any idea how this is done?

推荐答案

如果您的API方法需要一个的Htt prequestMessage ，那么你可以从拉流：

If your API method expects an HttpRequestMessage then you can pull the stream from that:

public HttpResponseMessage Put(HttpRequestMessage request)
{
    var stream = GetStreamFromUploadedFile(request);

    // do something with the stream, then return something
}

private static Stream GetStreamFromUploadedFile(HttpRequestMessage request)
{
    // Awaiting these tasks in the usual manner was deadlocking the thread for some reason.
    // So for now we're invoking a Task and explicitly creating a new thread.
    // See here: http://stackoverflow.com/q/15201255/328193
    IEnumerable<HttpContent> parts = null;
    Task.Factory
        .StartNew(() => parts = request.Content.ReadAsMultipartAsync().Result.Contents,
                        CancellationToken.None,
                        TaskCreationOptions.LongRunning,
                        TaskScheduler.Default)
        .Wait();

    Stream stream = null;
    Task.Factory
        .StartNew(() => stream = parts.First().ReadAsStreamAsync().Result,
                        CancellationToken.None,
                        TaskCreationOptions.LongRunning,
                        TaskScheduler.Default)
        .Wait();
    return stream;
}

这张贴有 ENCTYPE =的multipart / form-data的的HTTP表单时为我工作。

This works for me when posting an HTTP form with enctype="multipart/form-data".

这篇关于如何zip文件发送到ASP.NET的WebAPI的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！