C# 如何从 WebRequest 中删除代理并保持 DefaultWebProxy 不变
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How to remove proxy from WebRequest and leave DefaultWebProxy untouched
提问by Elephantik
I use FtpWebRequest to do some FTP stuff and I need to connect directly (no proxy). However WebRequest.DefaultWebProxy contains IE proxy settings (I reckon).
我使用 FtpWebRequest 来做一些 FTP 的事情，我需要直接连接（无代理）。但是 WebRequest.DefaultWebProxy 包含 IE 代理设置（我认为）。
WebRequest request = WebRequest.Create("ftp://someftpserver/");
// request.Proxy is null here so setting it to null does not have any effect
WebResponse response = request.GetResponse();
// connects using WebRequest.DefaultWebProxy
My code is a piece in a huge application and I don't want to change WebRequest.DefaultWebProxybecause it is global static property and it can have adverse impact on the other parts of the application.
我的代码是一个巨大应用程序中的一部分，我不想更改，WebRequest.DefaultWebProxy因为它是全局静态属性，它可能对应用程序的其他部分产生不利影响。
Any idea how to do it?
知道怎么做吗？
采纳答案by Alastair Pitts
try setting the proxy to an empty WebProxy, ie:
尝试将代理设置为空的 WebProxy，即：
request.Proxy = new WebProxy();
This should create an empty proxy.
这应该创建一个空代理。
回答by dr. evil
Actually setting it to null will be enough as well to disable auto proxy detection, you might save some cycles :)
实际上将其设置为 null 也足以禁用自动代理检测，您可能会节省一些周期:)
request.Proxy = null;
回答by Tshepo Kwienana
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(yourRequestUrl);
if (webRequest.Proxy != null)
{
webRequest.Proxy = null;
}
webRequest.KeepAlive = true;
webRequest.Method = "POST";
webRequest.ContentType = "application/json";
var json = JsonConvert.SerializeObject(yourObject);
ASCIIEncoding encoder = new ASCIIEncoding();
byte[] postBytes = encoder.GetBytes(json);
webRequest.ContentLength = postBytes.Length;
webRequest.CookieContainer = new CookieContainer();
String encoded = System.Convert.ToBase64String(System.Text.Encoding.GetEncoding("ISO-8859-1").GetBytes(string.Format("{0}:{1}", userName, password)));
webRequest.Headers.Add("Authorization", "Basic " + encoded);
Stream requestStream = webRequest.GetRequestStream();
requestStream.Write(postBytes, 0, postBytes.Length);
requestStream.Close();
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
string result;
using (StreamReader rdr = new StreamReader(response.GetResponseStream()))
{
result = rdr.ReadToEnd();
}
回答by bside
Add this to config:
将此添加到配置：
<system.net>
<defaultProxy enabled="false" useDefaultCredentials="false">
<proxy />
<bypasslist />
<module />
</defaultProxy>
</system.net>
