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;
}