ASP.NET使用HttpWebRequest读取远程网页源代码
读取远程网页能做什么就不用多说了吧,做小偷程序或是采集,也就诸如此类了吧。
publicstringGetPage(stringurl) { HttpWebRequestrequest=null; HttpWebResponseresponse=null; StreamReaderreader=null; try { request=(HttpWebRequest)WebRequest.Create(url); request.Timeout=20000; request.AllowAutoRedirect=false; response=(HttpWebResponse)request.GetResponse(); if(response.StatusCode==HttpStatusCode.OK&&response.ContentLength<1024*1024) { reader=newStreamReader(response.GetResponseStream(),System.Text.Encoding.Default); stringhtml=reader.ReadToEnd(); returnhtml; } } catch { } finally { if(response!=null) { response.Close(); response=null; } if(reader!=null) reader.Close(); if(request!=null) request=null; } returnstring.Empty; }