第一步，如果不是http网站，则需认证信托证书
/// <summary>
/// 认证信托证书
/// </summary>
/// <param name="sender"></param>
/// <param name="cert"></param>
/// <param name="chain"></param>
/// <param name="error"></param>
/// <returns></returns>
public static bool RemoteCertificateValidate(object sender, X509Certificate cert, X509Chain chain, SslPolicyErrors error)
{
LogHelper.WriteInfo("Warning, trust any certificate");
return true;
}
第二步，文字中文信息转成UTF-8格式
/// <summary>
/// 把中文转换成UTF-8
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string UrlEncode(string str)
{
byte[] utf8 = Encoding.UTF8.GetBytes(str);
string s = "";
foreach (byte b in utf8)
{
s += string.Format("%{0:X2}", b);
}
return s;
}
第三步，使用HttpRequest方式访问指定Url
/// <summary>
/// 使用HttpRequest方式访问Url
/// </summary>
/// <param name="url"></param>
/// <returns></returns>
public static string CreateHttpRequest(string url)
{
try
{
//创建HttpWebRequest请求连接
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
//获取HttpResponse响应
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream stream = null;
StreamReader reader = null;
string strLine = string.Empty;
string strResponse = string.Empty;
//判断请求是否正常
if (response.StatusCode == HttpStatusCode.OK)
{
stream = response.GetResponseStream();
reader = new StreamReader(stream, Encoding.UTF8);
//逐行读取
while ((strLine = reader.ReadLine()) != null)
{
strResponse += strLine + "\r\n";
}
}
}
catch (Exception e)
{
LogHelper.WriteError(e.Message, e);
}
return strResponse;
}