HttpWebRequest.ConnectionGroupName 屬性

public:
 virtual property System::String ^ ConnectionGroupName { System::String ^ get(); void set(System::String ^ value); };

public override string ConnectionGroupName { get; set; }

member this.ConnectionGroupName : string with get, set

Public Overrides Property ConnectionGroupName As String

屬性值

String

這個要求的連接群組名稱。The name of the connection group for this request. 預設值是 null。The default value is null.

範例

下列程式碼範例示範如何使用使用者資訊來形成連接群組，假設在 username password domain 呼叫此程式碼之前，應用程式已設定了變數、和。The following code example show how to use user information to form a connection group, assuming that the variables username, password, and domain are set by the application before this code is called.

// Create a secure group name.
// This example uses the SHA1 algorithm.
// Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
SHA1Managed^ Sha1 = gcnew SHA1Managed;
array<Byte>^updHash = Sha1->ComputeHash( Encoding::UTF8->GetBytes( "usernamepassworddomain" ) );
String^ secureGroupName = Encoding::Default->GetString( updHash );

// Create a request for a specific URL.
WebRequest^ myWebRequest = WebRequest::Create( "http://www.contoso.com" );

// Set the authentication credentials for the request.      
myWebRequest->Credentials = gcnew NetworkCredential( "username","password","domain" );
myWebRequest->ConnectionGroupName = secureGroupName;

// Get the response.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Insert the code that uses myWebResponse here.
// Close the response.
myWebResponse->Close();

// Create a secure group name.
// This example uses the SHA1 algorithm.
// Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
SHA1Managed Sha1 = new SHA1Managed();
Byte[] updHash = Sha1.ComputeHash(Encoding.UTF8.GetBytes("username" + "password" +  "domain"));
String secureGroupName = Encoding.Default.GetString(updHash);

// Create a request for a specific URL.
WebRequest myWebRequest=WebRequest.Create("http://www.contoso.com");

// Set the authentication credentials for the request.
myWebRequest.Credentials = new NetworkCredential("username", "password", "domain");
myWebRequest.ConnectionGroupName = secureGroupName;

// Get the response.
WebResponse myWebResponse=myWebRequest.GetResponse();

// Insert the code that uses myWebResponse here.

// Close the response.
myWebResponse.Close();

' Create a secure group name.
' This example uses the SHA1 algorithm.
' Due to collision problems with SHA1, Microsoft recommends SHA256 or better.
Dim Sha1 As New SHA1Managed()
Dim updHash As [Byte]() = Sha1.ComputeHash(Encoding.UTF8.GetBytes(("username" + "password" + "domain")))
Dim secureGroupName As [String] = Encoding.Default.GetString(updHash)
   
' Create a request for a specific URL.
Dim myWebRequest As WebRequest = WebRequest.Create("http://www.contoso.com")
   
' Set the authentication credentials for the request.      
myWebRequest.Credentials = New NetworkCredential("username", "password", "domain")
myWebRequest.ConnectionGroupName = secureGroupName
   
' Get the response.
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()
   
' Insert the code that uses myWebResponse here.
' Close the response.
myWebResponse.Close()
   

備註

ConnectionGroupName屬性可讓您建立要求與連接群組的關聯。The ConnectionGroupName property enables you to associate a request with a connection group. 當您的應用程式對不同使用者要求一部伺服器時，這會很有用，例如從資料庫伺服器抓取客戶資訊的網站。This is useful when your application makes requests to one server for different users, such as a Web site that retrieves customer information from a database server.

給繼承者的注意事項

每個連接群組都會為伺服器建立額外的連接。Each connection group creates additional connections for a server. 這可能會導致超過該伺服器的屬性所設定的連接數目 ConnectionLimit 。This may result in exceeding the number of connections set by the ConnectionLimit property for that server.

適用於

另請參閱

• MaxConnection
• ConnectionGroupName
• 連接群組Connection Grouping