WebProxy.GetDefaultProxy 方法

定義

命名空間:

System.Net

組件:

System.Net.WebProxy.dll

來源:

WebProxy.cs

警告

WebProxy.GetDefaultProxy has been deprecated. Use the proxy selected for you by default.

讀取因特網選項非動態 Proxy 設定。

public:
 static System::Net::WebProxy ^ GetDefaultProxy();

[System.Obsolete("WebProxy.GetDefaultProxy has been deprecated. Use the proxy selected for you by default.")]
public static System.Net.WebProxy GetDefaultProxy ();

[<System.Obsolete("WebProxy.GetDefaultProxy has been deprecated. Use the proxy selected for you by default.")>]
static member GetDefaultProxy : unit -> System.Net.WebProxy

Public Shared Function GetDefaultProxy () As WebProxy

傳回

WebProxy

WebProxy實例，包含來自因特網選項的非動態 Proxy 設定。

屬性

ObsoleteAttribute

例外狀況

PlatformNotSupportedException

在 .NET Core 上。

範例

下列程式代碼範例示範如何呼叫此方法。

void CheckDefaultProxyForRequest( Uri^ resource )
{
   WebProxy^ proxy = (WebProxy^)( WebProxy::GetDefaultProxy() );
   
   // See what proxy is used for resource.
   Uri^ resourceProxy = proxy->GetProxy( resource );
   
   // Test to see whether a proxy was selected.
   if ( resourceProxy == resource )
   {
      Console::WriteLine( "No proxy for {0}", resource );
   }
   else
   {
      Console::WriteLine( "Proxy for {0} is {1}", resource, 
         resourceProxy );
   }
}

public static void CheckDefaultProxyForRequest(Uri resource)
{
    WebProxy proxy = (WebProxy) WebProxy.GetDefaultProxy();

    // See what proxy is used for resource.
    Uri resourceProxy = proxy.GetProxy(resource);

    // Test to see whether a proxy was selected.
    if (resourceProxy == resource)
    {
        Console.WriteLine("No proxy for {0}", resource);
    }
    else
    {
        Console.WriteLine("Proxy for {0} is {1}", resource.ToString(),
            resourceProxy.ToString());
    }
}

備註

方法 GetDefaultProxy 會從計算機的因特網選項讀取非動態 Proxy 設定，並使用這些設定建立 WebProxy 實例。

此方法 GetDefaultProxy 不會從 Internet Explorer 執行的腳本、自動組態專案，或從 DHCP 或 DNS 查閱產生的任何動態設定。

應用程式應該使用 屬性， HttpClient.DefaultProxy 而不是 GetDefaultProxy 方法。

注意

.NET Core 不支援此屬性。