使用WCF REST服务下载文件？ [英] Download file using WCF Rest service?

问题描述

如果有来上传的方式文件通过流使用REST会有亦作下载？如果是的话，可以请你告诉我怎么样？ ！在此先感谢

If there is a way to Upload file using rest via stream would there be also for "Download"? If yes, can you please tell me how? Thanks in advance!

推荐答案

我使用从我的REST服务下载的文件的样本方法：

A sample method i use to download the file from my REST service:

[WebGet(UriTemplate = "file/{id}")]
        public Stream GetPdfFile(string id)
        {
            WebOperationContext.Current.OutgoingResponse.ContentType = "application/txt";
            FileStream f = new FileStream("C:\\Test.txt", FileMode.Open);
            int length = (int)f.Length;
            WebOperationContext.Current.OutgoingResponse.ContentLength = length;
            byte[] buffer = new byte[length];
            int sum = 0;
            int count;
            while((count = f.Read(buffer, sum , length - sum)) > 0 )
            {
                sum += count;
            }
            f.Close();
            return new MemoryStream(buffer); 
        }

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