流zip文件MVC.NET开始流式传输

Question

我正在尝试创建一种方法,在用户下载时不断传输zip文件(这样就不会浪费流媒体)

我添加了一个thread.sleep来模拟延迟

public override void ExecuteResult(ControllerContext context) {
    HttpResponseBase response = context.HttpContext.Response;

    response.Clear();
    response.ClearContent();
    response.ClearHeaders();
    response.Cookies.Clear();
    response.ContentType = ContentType;
    response.ContentEncoding = Encoding.Default;
    response.AddHeader("Content-Type", ContentType);
    context.HttpContext.Response.AddHeader("Content-Disposition", 
                            String.Format("attachment; filename={0}", 
                            this.DownloadName));
    int ind = 0;
    using (ZipOutputStream zipOStream = 
                new ZipOutputStream(context.HttpContext.Response.OutputStream))
    {
        foreach (var file in FilesToZip)
        {
            ZipEntry entry = new ZipEntry(FilesToZipNames[ind++]);
            zipOStream.PutNextEntry(entry);
            Thread.Sleep(1000);
            zipOStream.Write(file, 0, file.Length);
            zipOStream.Flush();
        }
        zipOStream.Finish();
    }    
    response.OutputStream.Flush();
}

看起来拉链将不会开始流式传输,直到所有文件都是压缩文件.有没有办法连续流？也许有一个不同的图书馆？

Answer 1

假设zip格式部分流式传输,则问题是默认情况下您的响应正在缓冲.如果将HttpResponseBase.BufferOutput设置为false,则应立即开始流式传输.