C# 从WCF服务器到UWP客户端的流式视频

就像我在标题中写的： 在服务器端，我有以下方法：

[OperationContract]
Stream GetStream();

它返回流，但当我在客户机中获取它时，它返回字节[]：

 public System.Threading.Tasks.Task<byte[]> GetStreamAsync() {
            return base.Channel.GetStreamAsync();
        }

---

我还是不明白。是否有人像我一样遇到此错误，或者我如何使用此返回类型进行流式处理。

也许您应该这样做

在WCF Web.config中添加端点

<endpoint address="files" behaviorConfiguration="WebBehavior"
      binding="webHttpBinding" bindingConfiguration="HttpStreaming"
      contract="WebService.IFileService" />
<endpoint address="data" binding="basicHttpBinding" contract="WebService.MyWCFService" />

在客户端。首先更新您的WCF服务参考，并在以下时间更新：

public async Task DownloadFile(string FileId)
    {
        string serverAddress = "http...../MyWCFService.svc";

        string filename = "test.txt";

        StorageFolder folder = KnownFolders.PicturesLibrary;
        var file = await folder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);

        BackgroundDownloader downloader = new BackgroundDownloader();
        DownloadOperation download = downloader.CreateDownload(new Uri($"{serverAddress}/files/DownloadFile?FileId={FileId}"), file);

        await download.StartAsync();
    }

---

我在我的WCF实例中没有看到它：尝试使用[WebInvoke]属性而不是[OperationContract]。或者在客户端看不到任何WCF方法？它会自动更改客户端中的返回类型：[WebInvoke]我无法定义它此函数是通过工具自动生成的。所以我用那种方法什么都不碰

public async Task DownloadFile(string FileId)
    {
        string serverAddress = "http...../MyWCFService.svc";

        string filename = "test.txt";

        StorageFolder folder = KnownFolders.PicturesLibrary;
        var file = await folder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);

        BackgroundDownloader downloader = new BackgroundDownloader();
        DownloadOperation download = downloader.CreateDownload(new Uri($"{serverAddress}/files/DownloadFile?FileId={FileId}"), file);

        await download.StartAsync();
    }