我试图读取从网址返回的数据。请考虑以下代码:
private static void Read()
{
_targetUrl = "https://url";
_proxyUrl = "http://differentUrl:8080";
ServicePointManager.ServerCertificateValidationCallback += AcceptAllCertifications;
ServicePointManager.Expect100Continue = true;
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
WebProxy webProxy = new WebProxy
{
Address = _proxyUri,
BypassProxyOnLocal = false,
UseDefaultCredentials = false
};
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(_targetUrl);
request.Proxy = webProxy;
request.Method = "GET";
WebResponse response = request.GetResponse();
Stream stream = response.GetResponseStream();
string ret = "";
byte[] buffer = new byte[1048];
int read;
while (stream != null && (read = stream.Read(buffer, 0, buffer.Length)) > 0)
{
Console.Write(Encoding.ASCII.GetString(buffer, 0, read));
ret += Encoding.ASCII.GetString(buffer, 0, read);
}
Console.WriteLine("READ: \n{0}", ret);
}
private static bool AcceptAllCertifications(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors policyErrors)
{
return true;
}
我被抛出异常:
System.Net.WebException:底层连接已关闭:An 接收时发生意外错误。 ---> System.ComponentModel.Win32Exception:客户端和服务器不能 沟通,因为他们没有共同的算法
以下代码:
WebResponse response = request.GetResponse();
我已经通过浏览器直接访问_targetUrl进行了验证,其中代理的设置与代码中定义的代理相同,并且能够看到浏览器返回的数据。
我带来了上面的编码,我从搜索到的参考文献中搜索了一些碎片。我发现的大多数建议似乎与我现在使用的建议几乎相同。
这里有点丢失。有人能指出正确的方向吗?
感谢您的关注。