WCF 4.0 REST上传MS-Excel文件

问题描述

我想通过WCF-REST服务上传MS-Excel文件。
我使用了下面的帖子给出的解决方案： -

我的POST方法被声明为：

$ p $ [OperationContract]
[WebInvoke（Method =POST，UriTemplate =/ RFQ）]
[WebContentType（application / octet-stream）]
UploadRFQDoc（Stream fileContents）;


当我调试时，流的内容是好的，直到调用去，当我附加服务调试，流fileContents参数变为空，服务返回[Bad Request]。我没有发送大文件（这只是50 KB）。我使用HttpClient来调用Post。
这里是客户端代码（RestClient是HttpClient）。

pre $ protected $ Post（string uri，Stream stream，int长度）
{
var content = HttpContent.Create（output => CopyToStream（stream，output，length），application / octet-stream，length）;
Uri relativeUri = new Uri（uri，UriKind.Relative）;

var resp = RestClient.Post（relativeUri，content）;

ProcessResponse（resp）;


void CopyToStream（Stream input，Stream output，int length）
{
var buffer = new byte [length];
var read = input.Read（buffer，0，Convert.ToInt32（length））;

output.Write（buffer，0，read）;
}

任何线索都可能出错。
很多感谢。

解决方案

I am trying to upload MS-Excel file through WCF-REST Service.I used the solution given in below post:-RESTful WCF service image upload problemMy POST Method is declared as:

  [OperationContract]
                [WebInvoke(Method = "POST", UriTemplate = "/RFQ")]
                [WebContentType("application/octet-stream")]
                void UploadRFQDoc(Stream fileContents);

When I debug, stream content is fine till the call goes, and when I attach service to debug, Stream fileContents parameter becomes null , and service returns with [Bad Request]. I am not sending large file (it is just 50 KB). I am using HttpClient to call the Post.Here are the client code(RestClient is HttpClient).

 protected void Post(string uri, Stream stream, int length)
        {
            var content = HttpContent.Create(output => CopyToStream(stream, output, length), "application/octet-stream", length);
            Uri relativeUri = new Uri(uri, UriKind.Relative);

            var resp = RestClient.Post(relativeUri, content);

            ProcessResponse(resp);
        }

        void CopyToStream(Stream input, Stream output, int length)
        {
            var buffer = new byte[length];
            var read = input.Read(buffer, 0, Convert.ToInt32 (length));

            output.Write(buffer, 0, read);
        }

Any clue what else can go wrong.Many Thanks.

解决方案

[WebContentType("application/octet-stream")] attribute was unnecessary here. I commented it out, and all worked fine :).

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