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失败 - 网络错误

Chrome 调试器窗口

屏幕截图 2 是调试器窗口信息，下面是用于下载文件的代码，它在 Visual Studio Chrome Emulators 中运行良好，但是当我部署代码时，它停止工作。相同的代码在另一个地方使用，一个工作正常，不知道为什么这个不起作用。

    public ActionResult DownloadFile(decimal document_id)
    {
        var DocumentForDownload = riskProfile.GetDocumentForDownload(document_id, isfordownload: true);
        byte[] byteArray = DocumentForDownload.DOCUMENT;
        var filename = DocumentForDownload.DOCUMENT_NAME + "." + DocumentForDownload.EXTENSION;
        string mimeType = "application/" + DocumentForDownload.EXTENSION;
        System.Web.HttpContext.Current.Response.Clear();
        System.Web.HttpContext.Current.Response.ClearContent();
        System.Web.HttpContext.Current.Response.ClearHeaders();
        System.Web.HttpContext.Current.Response.AddHeader("content-length", byteArray.Length.ToString());
        System.Web.HttpContext.Current.Response.ContentType = "application/" + DocumentForDownload.EXTENSION;
        System.Web.HttpContext.Current.Response.AddHeader("content-disposition", "attachment; filename=" + filename);
        System.Web.HttpContext.Current.Response.Charset = "utf-8";
        System.Web.HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("windows-1250");
        System.Web.HttpContext.Current.Response.BinaryWrite(byteArray);
        System.Web.HttpContext.Current.Response.Flush();
        System.Web.HttpContext.Current.Response.OutputStream.Close();
        System.Web.HttpContext.Current.Response.End();
        System.Web.HttpContext.Current.Response.Close();
        return new EmptyResult();
    }
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1 回答 1

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找到了解决办法，传输编码是chunked，不支持 content-length 头，所以我们需要将传输编码指定为identity。

System.Web.HttpContext.Current.Response.AddHeader("Transfer-Encoding", "identity")
于 2016-10-17T20:53:33.660 回答