ServicePointManager.FindServicePoint メソッド
要求を処理するための通信を管理するには、既存の ServicePoint を検出するか、新しい ServicePoint を作成します。
オーバーロードの一覧
指定した Uri との通信を管理するには、既存の ServicePoint を検出するか、新しい ServicePoint を作成します。
.NET Compact Framework でもサポート。
[Visual Basic] Overloads Public Shared Function FindServicePoint(Uri) As ServicePoint
[JScript] public static function FindServicePoint(Uri) : ServicePoint;
指定した URI との通信を管理するには、既存の ServicePoint を検出するか、新しい ServicePoint を作成します。
.NET Compact Framework でもサポート。
[Visual Basic] Overloads Public Shared Function FindServicePoint(String, IWebProxy) As ServicePoint
[C#] public static ServicePoint FindServicePoint(string, IWebProxy);
[C++] public: static ServicePoint* FindServicePoint(String*, IWebProxy*);
[JScript] public static function FindServicePoint(String, IWebProxy) : ServicePoint;
指定した Uri インスタンスとの通信を管理するには、既存の ServicePoint を検出するか、新しい ServicePoint を作成します。
.NET Compact Framework でもサポート。
[Visual Basic] Overloads Public Shared Function FindServicePoint(Uri, IWebProxy) As ServicePoint
[C#] public static ServicePoint FindServicePoint(Uri, IWebProxy);
[C++] public: static ServicePoint* FindServicePoint(Uri*, IWebProxy*);
[JScript] public static function FindServicePoint(Uri, IWebProxy) : ServicePoint;
使用例
[Visual Basic, C#, C++] このメソッドを呼び出して ServicePoint インスタンスにアクセスする例を次に示します。
[Visual Basic, C#, C++] メモ ここでは、FindServicePoint のオーバーロード形式のうちの 1 つだけについて、使用例を示します。その他の例については、各オーバーロード形式のトピックを参照してください。
' This is the program entry point. It allows the user to enter
' a server name that is used to locate its current homepage.
Public Shared Sub Main(ByVal args() As String)
Dim proxy As String = Nothing
Dim port As Integer = 80
' Define a regular expression to parse the user's input.
' This is a security check. It allows only
' alphanumeric input strings between 2 to 40 characters long.
Dim rex As New Regex("^[a-zA-Z]\w{1,39}$")
If args.Length = 0 Then
' Show how to use this program.
showUsage()
Return
End If
proxy = args(0)
If (Not (rex.Match(proxy)).Success) Then
Console.WriteLine("Input string format not allowed.")
Return
End If
' Create a proxy object.
Dim proxyAdd As String
proxyAdd = "http://" + proxy + ":" + port.ToString()
Dim DefaultProxy As New WebProxy(proxyAdd, True)
' Set the proxy that all HttpWebRequest instances use.
GlobalProxySelection.Select = DefaultProxy
' Get the base interface for proxy access for the
' WebRequest-based classes.
Dim Iproxy As IWebProxy = GlobalProxySelection.Select
' Set the maximum number of ServicePoint instances to maintain.
' Note that, if a ServicePoint instance for that host already
' exists when your application requests a connection to
' an Internet resource, the ServicePointManager object
' returns this existing ServicePoint. If none exists
' for that host, it creates a new ServicePoint instance.
ServicePointManager.MaxServicePoints = 4
' Set the maximum idle time of a ServicePoint instance to 10 seconds.
' After the idle time expires, the ServicePoint object is eligible for
' garbage collection and cannot be used by the ServicePointManager.
ServicePointManager.MaxServicePointIdleTime = 1000
ServicePointManager.UseNagleAlgorithm = True
ServicePointManager.Expect100Continue = True
ServicePointManager.CheckCertificateRevocationList = True
ServicePointManager.DefaultConnectionLimit = _
ServicePointManager.DefaultPersistentConnectionLimit
' Create the Uri object for the resource you want to access.
Dim MS As New Uri("https://msdn.microsoft.com/")
' Use the FindServicePoint method to find an existing
' ServicePoint object or to create a new one.
Dim servicePoint As ServicePoint = ServicePointManager.FindServicePoint(MS, Iproxy)
ShowProperties(servicePoint)
Dim hashCode As Integer = servicePoint.GetHashCode()
Console.WriteLine(("Service point hashcode: " + hashCode.ToString()))
' Make a request with the same scheme identifier and host fragment
' used to create the previous ServicePoint object.
makeWebRequest(hashCode, "https://msdn.microsoft.com/library/")
End Sub 'Main
[C#]
public static void Main (string[] args)
{
int port = 80;
// Define a regular expression to parse the user's input.
// This is a security check. It allows only
// alphanumeric input strings between 2 to 40 characters long.
Regex rex = new Regex (@"^[a-zA-Z]\w{1,39}$");
if (args.Length < 1)
{
showUsage ();
return;
}
string proxy = args[0];
if ((rex.Match (proxy)).Success != true)
{
Console.WriteLine ("Input string format not allowed.");
return;
}
string proxyAdd = "http://" + proxy + ":" + port;
// Create a proxy object.
WebProxy DefaultProxy = new WebProxy (proxyAdd, true);
// Set the proxy that all HttpWebRequest instances use.
GlobalProxySelection.Select = DefaultProxy;
// Get the base interface for proxy access for the
// WebRequest-based classes.
IWebProxy Iproxy = GlobalProxySelection.Select;
// Set the maximum number of ServicePoint instances to
// maintain. If a ServicePoint instance for that host already
// exists when your application requests a connection to
// an Internet resource, the ServicePointManager object
// returns this existing ServicePoint instance. If none exists
// for that host, it creates a new ServicePoint instance.
ServicePointManager.MaxServicePoints = 4;
// Set the maximum idle time of a ServicePoint instance to 10 seconds.
// After the idle time expires, the ServicePoint object is eligible for
// garbage collection and cannot be used by the ServicePointManager object.
ServicePointManager.MaxServicePointIdleTime = 1000;
ServicePointManager.UseNagleAlgorithm = true;
ServicePointManager.Expect100Continue = true;
ServicePointManager.CheckCertificateRevocationList = true;
ServicePointManager.DefaultConnectionLimit = ServicePointManager.DefaultPersistentConnectionLimit;
// Create the Uri object for the resource you want to access.
Uri MS = new Uri ("https://msdn.microsoft.com/");
// Use the FindServicePoint method to find an existing
// ServicePoint object or to create a new one.
ServicePoint servicePoint = ServicePointManager.FindServicePoint (MS, Iproxy);
ShowProperties (servicePoint);
int hashCode = servicePoint.GetHashCode ();
Console.WriteLine ("Service point hashcode: " + hashCode);
// Make a request with the same scheme identifier and host fragment
// used to create the previous ServicePoint object.
makeWebRequest (hashCode, "https://msdn.microsoft.com/library/");
}
[C++]
void main()
{
String* args[] = Environment::GetCommandLineArgs();
int port = 80;
// Define a regular expression to parse the user's input.
// This is a security check. It allows only
// alphanumeric input strings between 2 to 40 characters long.
Regex* rex = new Regex(S"^[a-zA-Z]\\w{1,39}$");
if (args->Length < 2)
{
showUsage();
return;
}
String* proxy = args[1];
if ((rex->Match(proxy))->Success != true)
{
Console::WriteLine(S"Input string format not allowed.");
return;
}
String* proxyAdd = String::Format( S"http://{0}:{1}", proxy, __box(port));
// Create a proxy object.
WebProxy* DefaultProxy = new WebProxy(proxyAdd, true);
// Set the proxy that all HttpWebRequest instances use.
GlobalProxySelection::Select = DefaultProxy;
// Get the base interface for proxy access for the
// WebRequest-based classes.
IWebProxy* Iproxy = GlobalProxySelection::Select;
// Set the maximum number of ServicePoint instances to
// maintain. If a ServicePoint instance for that host already
// exists when your application requests a connection to
// an Internet resource, the ServicePointManager object
// returns this existing ServicePoint instance. If none exists
// for that host, it creates a new ServicePoint instance.
ServicePointManager::MaxServicePoints = 4;
// Set the maximum idle time of a ServicePoint instance to 10 seconds.
// After the idle time expires, the ServicePoint object is eligible for
// garbage collection and cannot be used by the ServicePointManager.
ServicePointManager::MaxServicePointIdleTime = 1000;
ServicePointManager::UseNagleAlgorithm = true;
ServicePointManager::Expect100Continue = true;
ServicePointManager::CheckCertificateRevocationList = true;
ServicePointManager::DefaultConnectionLimit = ServicePointManager::DefaultPersistentConnectionLimit;
// Create the Uri object for the resource you want to access.
Uri* MS = new Uri(S"https://msdn.microsoft.com/");
// Use the FindServicePoint method to find an existing
// ServicePoint object or to create a new one.
ServicePoint* servicePoint = ServicePointManager::FindServicePoint(MS, Iproxy);
ShowProperties(servicePoint);
int hashCode = servicePoint->GetHashCode();
Console::WriteLine(S"Service point hashcode: {0}", __box(hashCode));
// Make a request with the same scheme identifier and host fragment
// used to create the previous ServicePoint object.
makeWebRequest(hashCode, S"https://msdn.microsoft.com/library/");
}
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をクリックします。
参照
ServicePointManager クラス | ServicePointManager メンバ | System.Net 名前空間