正则判断路径为网络路径还是本地路径
/// <summary>
/// 识别urlStr是否是网络路径
/// </summary>
/// <param name="urlStr"></param>
/// <returns></returns>
public bool UrlDiscern(string urlStr)
{
if (Regex.IsMatch(urlStr, @"((http|ftp|https)://)(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(:[0-9]{1,4})*(/[a-zA-Z0-9\&%_\./-~-]*)?"))
{
return true;
}
else
{
return false;
}
}
判断网络路径和本地路径是否存在
/// <summary>
/// 判断远程文件是否存在
/// </summary>
/// <param name="fileUrl"></param>
/// <returns></returns>
public bool RemoteFileExists(string fileUrl)
{
HttpWebRequest re = null;
HttpWebResponse res = null;
try
{
re = (HttpWebRequest)WebRequest.Create(fileUrl);
res = (HttpWebResponse)re.GetResponse();
if (res.ContentLength >= 0 && res.StatusCode == HttpStatusCode.OK)
{
//MessageBox.Show("文件存在");
return true;
}
}
catch (Exception)
{
//MessageBox.Show("无此文件");
return false;
}
finally
{
if (re != null)
{
re.Abort();//销毁关闭连接
}
if (res != null)
{
res.Close();//销毁关闭响应
}
}
return false;
}
/// <summary>
/// 判断本地文件是否存在
/// </summary>
/// <param name="path"></param>
/// <returns></returns>
public bool LocalFileExists(string filePath)
{
if (File.Exists(filePath))
{
return true;
}
else
{
return false;
}
}
