我有一台运行一些网络抓取控制台应用程序的虚拟机。我想知道你如何为每个控制台应用程序使用不同的代理。我找到的大多数代理C#内容都会更改注册表,但这会更改所有控制台应用程序,而不仅仅是一个。
任何人都有一个如何在没有有效的所有其他控制台应用程序的情况下为特定控制台应用程序使用特定代理的示例?
寻找源代码解决方案
答案 0 :(得分:0)
假设您的控制台应用程序使用其中一种内置方法来下载网页(WebClient,HttpWebRequest等),它们都有一个Proxy Property,它可以完成你所追求的目标。它们几乎都是一样的,所以这里是HttpWebRequest.Proxy的MSDN文档提供的示例:
// Create a new request to the mentioned URL.
HttpWebRequest myWebRequest=(HttpWebRequest)WebRequest.Create("http://www.microsoft.com");
// Obtain the 'Proxy' of the Default browser.
IWebProxy proxy = myWebRequest.Proxy;
// Print the Proxy Url to the console.
if (proxy != null)
{
Console.WriteLine("Proxy: {0}", proxy.GetProxy(myWebRequest.RequestUri));
}
else
{
Console.WriteLine("Proxy is null; no proxy will be used");
}
WebProxy myProxy=new WebProxy();
Console.WriteLine("\nPlease enter the new Proxy Address that is to be set:");
Console.WriteLine("(Example:http://myproxy.example.com:port)");
string proxyAddress;
try
{
proxyAddress =Console.ReadLine();
if(proxyAddress.Length>0)
{
Console.WriteLine("\nPlease enter the Credentials (may not be needed)");
Console.WriteLine("Username:");
string username;
username =Console.ReadLine();
Console.WriteLine("\nPassword:");
string password;
password =Console.ReadLine();
// Create a new Uri object.
Uri newUri=new Uri(proxyAddress);
// Associate the newUri object to 'myProxy' object so that new myProxy settings can be set.
myProxy.Address=newUri;
// Create a NetworkCredential object and associate it with the
// Proxy property of request object.
myProxy.Credentials=new NetworkCredential(username,password);
myWebRequest.Proxy=myProxy;
}
Console.WriteLine("\nThe Address of the new Proxy settings are {0}",myProxy.Address);
HttpWebResponse myWebResponse=(HttpWebResponse)myWebRequest.GetResponse();
答案 1 :(得分:0)
您可以为每个控制台应用程序创建自己的代理身份验证类。
namespace YourProxyNameSpace
{
public class YourProxyClass: IWebProxy
{
public Uri GetProxy(Uri destination)
{
string proxy = ConfigurationManager.AppSettings["proxyaddress"];
return new Uri(proxy);
}
public bool IsBypassed(Uri host)
{
return false;
}
public ICredentials Credentials
{
get
{
string username = ConfigurationManager.AppSettings["username"];
string password = ConfigurationManager.AppSettings["password"];
return new NetworkCredential(username, password);
}
set { }
}
}
}
在配置文件(app.config)中添加以下节点
<system.net>
<defaultProxy>
<module type="YourProxyNameSpace.YourProxyClass, YourProxyNameSpace"/>
</defaultProxy>
</system.net>
<add key="proxyaddress" value="http://proxyAddress:PORT"/>
<add key="username" value="*****"/>
<add key="password" value="*****"/>
希望它可以帮助某人。 :)