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HttpWebRequest.SendChunked Vlastnost

Definice

Získá nebo nastaví hodnotu, která určuje, zda se mají odesílat data v segmentech do internetového prostředku.

public:
 property bool SendChunked { bool get(); void set(bool value); };
public bool SendChunked { get; set; }
member this.SendChunked : bool with get, set
Public Property SendChunked As Boolean

Hodnota vlastnosti

true odesílat data do internetového prostředku v segmentech; jinak false. Výchozí hodnota je false.

Výjimky

Příklady

Následující příklad kódu nastaví SendChunked vlastnost true tak, aby se data mohly odesílat v segmentech do internetového prostředku.

// A new 'HttpWebRequest' object is created.
HttpWebRequest^ myHttpWebRequest = (HttpWebRequest^)( WebRequest::Create( myUri ) );
myHttpWebRequest->SendChunked = true;
// 'TransferEncoding' property is set to 'gzip'.
myHttpWebRequest->TransferEncoding = "gzip";
Console::WriteLine( "\nPlease Enter the data to be posted to the (http://<machine name>/CodeSnippetTest::asp) uri:" );
String^ inputData = Console::ReadLine();
String^ postData = String::Concat( "testdata= ", inputData );
// 'Method' property of 'HttpWebRequest' class is set to POST.
myHttpWebRequest->Method = "POST";
ASCIIEncoding^ encodedData = gcnew ASCIIEncoding;
array<Byte>^ byteArray = encodedData->GetBytes( postData );
// 'ContentType' property of the 'HttpWebRequest' class is set to S"application/x-www-form-urlencoded".
myHttpWebRequest->ContentType = "application/x-www-form-urlencoded";
// 'ContentLength' property is set to Length of the data to be posted.
myHttpWebRequest->ContentLength = byteArray->Length;
Stream^ newStream = myHttpWebRequest->GetRequestStream();
newStream->Write( byteArray, 0, byteArray->Length );
newStream->Close();
Console::WriteLine( "\nData has been posted to the Uri\n\nPlease wait for the response.........." );
// The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
HttpWebResponse^ myHttpWebResponse = (HttpWebResponse^)( myHttpWebRequest->GetResponse() );
// Displaying the contents of the page to the console
Stream^ streamResponse = myHttpWebResponse->GetResponseStream();
StreamReader^ streamRead = gcnew StreamReader( streamResponse );
array<Char>^ readBuff = gcnew array<Char>(256);
int count = streamRead->Read( readBuff, 0, 256 );
Console::WriteLine( "\nThe contents of the HTML page are :  " );
while ( count > 0 )
{
   String^ outputData = gcnew String( readBuff,0,count );
   Console::WriteLine( outputData );
   count = streamRead->Read( readBuff, 0, 256 );
}
streamRead->Close();
streamResponse->Close();
myHttpWebResponse->Close();
// A new 'HttpWebRequest' object is created.
HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(myUri);
myHttpWebRequest.SendChunked = true;
// 'TransferEncoding' property is set to 'gzip'.
myHttpWebRequest.TransferEncoding = "gzip";
Console.WriteLine("\nPlease Enter the data to be posted to the (http://<machine name>/CodeSnippetTest.asp) uri:");

string inputData = Console.ReadLine();
string postData = "testdata=" + inputData;
// 'Method' property of 'HttpWebRequest' class is set to POST.
myHttpWebRequest.Method = "POST";
ASCIIEncoding encodedData = new ASCIIEncoding();
byte[]  byteArray = encodedData.GetBytes(postData);
// 'ContentType' property of the 'HttpWebRequest' class is set to "application/x-www-form-urlencoded".
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
// 'ContentLength' property is set to Length of the data to be posted.
myHttpWebRequest.ContentLength = byteArray.Length;
Stream newStream = myHttpWebRequest.GetRequestStream();
newStream.Write(byteArray, 0, byteArray.Length);
newStream.Close();
Console.WriteLine("\nData has been posted to the Uri\n\nPlease wait for the response..........");

// The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
// Displaying the contents of the page to the console
Stream streamResponse = myHttpWebResponse.GetResponseStream();
StreamReader streamRead = new StreamReader(streamResponse);
Char[] readBuff = new Char[256];
int count = streamRead.Read(readBuff, 0, 256);
Console.WriteLine("\nThe contents of the HTML page are :  ");

while (count > 0)
{
   String outputData = new String(readBuff, 0, count);
   Console.WriteLine(outputData);
   count = streamRead.Read(readBuff, 0, 256);
}
// Release the response object resources.
streamRead.Close();
streamResponse.Close();
myHttpWebResponse.Close();
' A new 'HttpWebRequest' object is created.
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create(myUri), HttpWebRequest)
myHttpWebRequest.SendChunked = True
' 'TransferEncoding' property is set to 'gzip'.
myHttpWebRequest.TransferEncoding = "gzip"
Console.WriteLine(ControlChars.Cr + "Please Enter the data to be posted to the (http://" + ChrW(60) + "machine name" + ChrW(62) + "/CodeSnippetTest.asp) uri:")
Dim inputData As String = Console.ReadLine()
Dim postData As String = "testdata" + ChrW(61) + inputData
' 'Method' property of 'HttpWebRequest' class is set to POST.
myHttpWebRequest.Method = "POST"
Dim encodedData As New ASCIIEncoding()
Dim byteArray As Byte() = encodedData.GetBytes(postData)
' 'ContentType' property of the 'HttpWebRequest' class is set to "application/x-www-form-urlencoded".
myHttpWebRequest.ContentType = "application/x-www-form-urlencoded"
' 'ContentLength' property is set to Length of the data to be posted.
myHttpWebRequest.ContentLength = byteArray.Length
Dim newStream As Stream = myHttpWebRequest.GetRequestStream()
newStream.Write(byteArray, 0, byteArray.Length)
newStream.Close()
Console.WriteLine(ControlChars.Cr + "Data has been posted to the Uri" + ControlChars.Cr + ControlChars.Cr + "Please wait for the response..........")
' The response object of 'HttpWebRequest' is assigned to a 'HttpWebResponse' variable.
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
' Displaying the contents of the page to the console
Dim streamResponse As Stream = myHttpWebResponse.GetResponseStream()
Dim streamRead As New StreamReader(streamResponse)
Dim readBuff(256) As [Char]
Dim count As Integer = streamRead.Read(readBuff, 0, 256)
Console.WriteLine(ControlChars.Cr + "The contents of the HTML page are :  ")
While count > 0
    Dim outputData As New [String](readBuff, 0, count)
    Console.WriteLine(outputData)
    count = streamRead.Read(readBuff, 0, 256)
End While
' Release the response object resources.  
streamRead.Close()
streamResponse.Close()
myHttpWebResponse.Close()

Poznámky

Opatrnost

WebRequest, HttpWebRequest, ServicePointa WebClient jsou zastaralé a neměli byste je používat pro nový vývoj. Místo toho použijte HttpClient.

Při SendChunkedtrueodešle požadavek data do internetového prostředku v segmentech. Internetový prostředek musí podporovat příjem dat v bloku dat.

Změna vlastnosti SendChunked po spuštění požadavku voláním GetRequestStream, BeginGetRequestStream, GetResponsenebo metoda BeginGetResponse vyvolá InvalidOperationException.

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