ASP.NET使用HttpWebRequest读取远程网页源代码
作者：haishu
本文分享了一个使用HttpWebRequest读取远程网页的案例，供大家参考学习。
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。
public string GetPage(string url)
{
HttpWebRequest request = null;
HttpWebResponse response = null;
StreamReader reader = 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 = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);
string html = reader.ReadToEnd();
return html;
}
}
catch
{
}
finally
{
if (response != null)
{
response.Close();
response = null;
}
if (reader != null)
reader.Close();
if (request != null)
request = null;
}
return string.Empty;
}