C# 怎么判断URL存在不存在？？
URL是http://moman-share.oss-cn-hangzhou.aliyuncs.com/shareImage/asd@s.com201312311818.jpg
我用网上的方法试了都不行啊。。但是这个URL是存在的啊，大家可以浏览器查看
private static bool UrlExistsUsingHttpWebRequest(string url)
{
try
{
System.Net.HttpWebRequest myRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(url);
myRequest.Method = "HEAD";
myRequest.Timeout = 200;
System.Net.HttpWebResponse res = (System.Net.HttpWebResponse)myRequest.GetResponse();
return (res.StatusCode == System.Net.HttpStatusCode.OK);
}
catch (System.Net.WebException we)
{
System.Diagnostics.Trace.Write(we.Message);
return false;
}
}
