Asp.Net使用代理IP远程获取数据

mportant;">/// <summary>
/// 远程获取数据
/// </summary>
/// <param name="url">url</param>
/// <param name="code">编码</param>
/// <param name="ProxyStr">代理IP，格式：10.20.30.40:8888</param>
/// <returns></returns>
public static string SendUrl(string url, Encoding code, string ProxyStr)
{
string html = string.Empty;
try
{
HttpWebRequest WebReques = (HttpWebRequest)HttpWebRequest.Create(url);
WebReques.Method = "GET";
WebReques.Timeout = 20000;
if (ProxyStr.Length > 0)
{
WebProxy proxy = new WebProxy(ProxyStr, true);
WebReques.Proxy = proxy;
}

HttpWebResponse WebRespon = (HttpWebResponse)WebReques.GetResponse();
if (WebRespon != null)
{
StreamReader sr = new StreamReader(WebRespon.GetResponseStream(), code);
html = sr.ReadToEnd();
sr.Close();
sr.Dispose();
WebRespon.Close();
}
}
catch
{
html = “err”;
}
return html;
}