Question

是否可以使用webresponse在磁盘上检索文件大小？如果没有，我怎么能检索文件大小？

HttpWebRequest request = (HttpWebRequest)WebRequest.Create(finalUrl);
request.AllowAutoRedirect = true;
request.KeepAlive = false;
request.ProtocolVersion = HttpVersion.Version10;
request.ServicePoint.ConnectionLimit = 24;

//request.Method = "HEAD";
var contentType = string.Empty;

using (WebResponse webResponse = request.GetResponse())
{
    contentType = webResponse.ContentType;
    using (Stream stream = webResponse.GetResponseStream())
    {
        using (MemoryStream memoryStream = new MemoryStream())
        {
            Byte[] buffer = new Byte[1024];
            Int32 bytesRead;
            while ((bytesRead = stream.Read(buffer, 0, buffer.Length)) > 0)
            {
                memoryStream.Write(buffer, 0, bytesRead);
            }

            documentFile.Data = memoryStream.ToArray();
        }
    }
}

Answer 1

我认为，在下载文件读取ContentLength标题之前，这是从网站获取文件大小信息的唯一方法，并且无法保证服务器提供它。

var fileSize = webResponse.ContentLength;

或下载文件后，您可以获取流的长度以检索大小;

var fileSize = memoryStream.Length;

使用WebResponse的磁盘上的文件大小？

1 个答案: