1 方法封装：
public static class WebFunc
{
public static string GetHtml(string url, Encoding encoding)
{
string html = string.Empty;
try
{
WebRequest request;
request = WebRequest.Create(url);
request.Credentials = CredentialCache.DefaultCredentials;
request.Timeout = 20000;
WebResponse response;
response = request.GetResponse();
html = new StreamReader(response.GetResponseStream(), encoding).ReadToEnd();
}
catch(System.UriFormatException uex)
{
LogHelper.Error(string.Format("ex:{0}, url:{1}", uex, url));
}
catch (System.Net.WebException ex)
{
LogHelper.Error(string.Format("ex:{0}, url:{1}", ex, url));
}
return html;
}
}
调用： string contents = WebFunc.GetHtml(url,Encoding.GetEncoding("gb2312"));