驗證網址是否存在 我要驗證一個網址是否存在,用C#怎麼寫啊小弟在綫求謝謝! 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 System.Net.HttpWebRequest req = System.Net.HttpWebRequest.Create(url) as System.Net.HttpWebRequest;req.Method = "HEAD";System.Net.HttpWebResponse res = req.GetResponse() as System.Net.HttpWebResponse;if (res.StatusCode == System.Net.HttpStatusCode.OK){ //存在} private bool UrlCheck(string strUrl){ if (!strUrl.Contains("http://") && !strUrl.Contains("https://")) { strUrl = "http://" + strUrl; } try { HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(strUrl); myRequest.Method = "HEAD"; myRequest.Timeout = 10000; //超时时间10秒 HttpWebResponse res = (HttpWebResponse)myRequest.GetResponse(); return (res.StatusCode == HttpStatusCode.OK); } catch { return false; }}//使用时,我们只需传入Url即可进行有效性检查,使用这个方法时记得加上System.Net命名空间。if (!UrlCheck("http://hyipaying.com")){ //删除操作} try { WebClient client = new WebClient(); byte[] buffer = client.DownloadData(url); } catch (Exception) { isConnect = false; }try { HttpWebRequest request=(HttpWebRequest)WebRequest.Create(""); HttpWebResponse myResponse=(HttpWebResponse)request.GetResponse(); if(myResponse.StatusDescription.ToString().ToUpper()=="") { } } catch(WebException webExcp) { } 判断tatuscode是否为401 配菜问题(急!) datagridview选中行copy某cell的问题 求救,c#怎么设置word的柱状图表内容阿,多谢!! 谁知道Visual Studio 2005 Team System suite 多少M? 这样做我应该拿多少钱 DataGridView 无法更新 关于Jmail组件 关于.net framework1.0和1.1 给个思路,如何禁止鼠标在整个系统中的点击?(不仅仅是本身这个程序) C#小白求指导 listview如何设置文字在图片上面 比较好的c#学习网站
req.Method = "HEAD";
System.Net.HttpWebResponse res = req.GetResponse() as System.Net.HttpWebResponse;
if (res.StatusCode == System.Net.HttpStatusCode.OK)
{
//存在
}
private bool UrlCheck(string strUrl)
{
if (!strUrl.Contains("http://") && !strUrl.Contains("https://"))
{
strUrl = "http://" + strUrl;
}
try
{
HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(strUrl);
myRequest.Method = "HEAD";
myRequest.Timeout = 10000; //超时时间10秒
HttpWebResponse res = (HttpWebResponse)myRequest.GetResponse();
return (res.StatusCode == HttpStatusCode.OK);
}
catch
{
return false;
}
}//使用时,我们只需传入Url即可进行有效性检查,使用这个方法时记得加上System.Net命名空间。
if (!UrlCheck("http://hyipaying.com"))
{
//删除操作
}
{
WebClient client = new WebClient();
byte[] buffer = client.DownloadData(url);
}
catch (Exception)
{
isConnect = false;
}
try
{
HttpWebRequest request=(HttpWebRequest)WebRequest.Create("");
HttpWebResponse myResponse=(HttpWebResponse)request.GetResponse();
if(myResponse.StatusDescription.ToString().ToUpper()=="")
{
}
}
catch(WebException webExcp)
{
}
判断tatuscode是否为401