获取网络文件信息[名称、大小、类型]代码,CSharp代码库,德仔网

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【CSharp】获取网络文件信息[名称、大小、类型]

作者:Dezai.CN / 发布于2011/6/27/ 485

<div>string URL = "http://localhost/debug.rar";
string filetype = URL.Substring(URL.LastIndexOf(".") + 1,
(URL.Length - URL.LastIndexOf(".") - 1));
lblType.Text = filetype.ToUpper();
string filename = URL.Substring(URL.LastIndexOf("/") + 1,
(URL.Length - URL.LastIndexOf("/") - 1));
lblName.Text = filename;
System.Net.WebRequest req = System.Net.HttpWebRequest.Create(URL);
req.Method = "HEAD";
System.Net.WebResponse resp = req.GetResponse();
long ContentLength = 0;
float result;
if (long.TryParse(resp.Headers.Get("Content-Length"), out ContentLength))
{
string File_Size;

if (ContentLength >= 1073741824)
{
result = ContentLength / 1073741824.00F;
lblUnit.Text = "GB";
}
else if (ContentLength >= 1048576)
{
result = ContentLength / 1048576.00F;
lblUnit.Text = "MB";
}
else
{
result = ContentLength / 1024.00F;
lblUnit.Text = "KB";
}
File_Size = result.ToString("0.00");
lblSize.Text = File_Size;
}

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