C# 判断网站是否能访问或者断链

转自：http://www.cnblogs.com/junny/archive/2012/10/30/2745978.html

using System.Net;public bool CheckUrlVisit(string url) {       try{HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);HttpWebResponse resp = (HttpWebResponse)req.GetResponse();if (resp.StatusCode == HttpStatusCode.OK){
　　　　　　　　　　resp.Close(); return true;}}catch (WebException webex){return false;}return false;}string[] links = { "http://www.baidu.com", "http://www.google.com", "http://www.chinabuffetflora.com" };foreach (string link in links){HttpContext.Current.Response.Write( link+" :  "+CheckUrlVisit(link)+" <br>");}        

测试结果：

http://www.baidu.com : True 
http://www.google.com : True 
http://www.chinabuffetflora.com : False