HttpPostClientProtocol Classe

Definizione

public ref class HttpPostClientProtocol : System::Web::Services::Protocols::HttpSimpleClientProtocol

public class HttpPostClientProtocol : System.Web.Services.Protocols.HttpSimpleClientProtocol

type HttpPostClientProtocol = class
    inherit HttpSimpleClientProtocol

Public Class HttpPostClientProtocol
Inherits HttpSimpleClientProtocol

Ereditarietà

Object

MarshalByRefObject

Component

WebClientProtocol

HttpWebClientProtocol

HttpSimpleClientProtocol

HttpPostClientProtocol

Esempio

L'esempio seguente è una classe proxy generata dall'utilità Wsdl.exe per il Math servizio Web XML seguente. La classe proxy deriva da HttpPostClientProtocol, che deriva dalla classe astratta HttpSimpleClientProtocol .

#using <System.Web.Services.dll>
#using <System.Xml.dll>
#using <System.dll>

using namespace System::Diagnostics;
using namespace System::Xml::Serialization;
using namespace System;
using namespace System::Web::Services::Protocols;
using namespace System::Web::Services;

public ref class MyMath: public System::Web::Services::Protocols::HttpPostClientProtocol
{
public:

   [System::Diagnostics::DebuggerStepThroughAttribute]
   MyMath()
   {
      this->Url = "http://www.contoso.com/math.asmx";
   }

   [System::Diagnostics::DebuggerStepThroughAttribute]
   [System::Web::Services::Protocols::HttpMethodAttribute(System::Web::Services::Protocols::XmlReturnReader::typeid,
   System::Web::Services::Protocols::HtmlFormParameterWriter::typeid)]
   [returnvalue:System::Xml::Serialization::XmlRootAttribute("snippet1>",Namespace="http://www.contoso.com/",IsNullable=false)]
   int Add( String^ num1, String^ num2 )
   {
      array<Object^>^temp2 = {num1,num2};
      return  *dynamic_cast<int^>(this->Invoke( "Add", (String::Concat( this->Url, "/Add" )), temp2 ));
   }

   [System::Diagnostics::DebuggerStepThroughAttribute]
   System::IAsyncResult^ BeginAdd( String^ num1, String^ num2, System::AsyncCallback^ callback, Object^ asyncState )
   {
      array<Object^>^temp3 = {num1,num2};
      return this->BeginInvoke( "Add", (this->Url + "/Add" ), temp3, callback, asyncState );
   }

   [System::Diagnostics::DebuggerStepThroughAttribute]
   int EndAdd( System::IAsyncResult^ asyncResult )
   {
      return  *dynamic_cast<int^>(this->EndInvoke( asyncResult ));
   }
};

using System.Diagnostics;
using System.Xml.Serialization;
using System;
using System.Web.Services.Protocols;
using System.Web.Services;

public class MyMath : System.Web.Services.Protocols.HttpPostClientProtocol
{
    [System.Diagnostics.DebuggerStepThroughAttribute()]
    public MyMath()
    {
        this.Url = "http://www.contoso.com/math.asmx";
    }

    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.Web.Services.Protocols.HttpMethodAttribute(typeof(System.Web.Services.Protocols.XmlReturnReader), typeof(System.Web.Services.Protocols.HtmlFormParameterWriter))]
    [return: System.Xml.Serialization.XmlRootAttribute("int", Namespace = "http://www.contoso.com/", IsNullable = false)]
    public int Add(string num1, string num2)
    {
        return ((int)(this.Invoke("Add", (this.Url + "/Add"),
            new object[] { num1, num2 })));
    }

    [System.Diagnostics.DebuggerStepThroughAttribute()]
    public System.IAsyncResult BeginAdd(string num1, string num2, System.AsyncCallback callback, object asyncState)
    {
        return this.BeginInvoke("Add", (this.Url + "/Add"),
            new object[] { num1, num2 }, callback, asyncState);
    }

    [System.Diagnostics.DebuggerStepThroughAttribute()]
    public int EndAdd(System.IAsyncResult asyncResult)
    {
        return ((int)(this.EndInvoke(asyncResult)));
    }
}

Option Strict On
Option Explicit On

Imports System.Diagnostics
Imports System.Web.Services
Imports System.Web.Services.Protocols
Imports System.Xml.Serialization

Public Class MyMath
    Inherits System.Web.Services.Protocols.HttpPostClientProtocol
    
    <System.Diagnostics.DebuggerStepThroughAttribute()>  _
    Public Sub New()
        MyBase.New
        Me.Url = "http://www.contoso.com/math.asmx"
    End Sub
    
    <System.Diagnostics.DebuggerStepThroughAttribute(),  _
     System.Web.Services.Protocols.HttpMethodAttribute(GetType(System.Web.Services.Protocols.XmlReturnReader), GetType(System.Web.Services.Protocols.HtmlFormParameterWriter))>  _
    Public Function Add(ByVal num1 As String, ByVal num2 As String) As <System.Xml.Serialization.XmlRootAttribute("int", [Namespace]:="http://www.contoso.com/", IsNullable:=false)> Integer
        Return CType(Me.Invoke("Add", (Me.Url + "/Add"), New Object() {num1, num2}),Integer)
    End Function
    
    <System.Diagnostics.DebuggerStepThroughAttribute()>  _
    Public Function BeginAdd(ByVal num1 As String, ByVal num2 As String, ByVal callback As System.AsyncCallback, ByVal asyncState As Object) As System.IAsyncResult
        Return Me.BeginInvoke("Add", (Me.Url + "/Add"), New Object() {num1, num2}, callback, asyncState)
    End Function
    
    <System.Diagnostics.DebuggerStepThroughAttribute()>  _
    Public Function EndAdd(ByVal asyncResult As System.IAsyncResult) As Integer
        Return CType(Me.EndInvoke(asyncResult),Integer)
    End Function
End Class

L'esempio seguente è il Math servizio Web XML, da cui è stata creata la classe proxy precedente.

<%@ WebService Language="C#" Class="Math"%>
 using System.Web.Services;
 using System;
 
 public class Math {
      [ WebMethod ]
      public int Add(int num1, int num2) {
          return num1+num2;
          }
 }

<%@ WebService Language="VB" Class="Math"%>
Imports System.Web.Services
Imports System

Public Class Math
    <WebMethod()> _
    Public Function Add(num1 As Integer, num2 As Integer) As Integer
        Return num1 + num2
    End Function 'Add
End Class 'Math

Commenti

Quando un client del servizio Web XML usa il protocollo HTTP-POST, per impostazione predefinita i parametri vengono codificati all'interno del corpo HTTP usando le regole di codifica URL e utilizza xml normale per la risposta. Questo protocollo usa classi che derivano da MimeFormatter per codificare i parametri e restituire valori in formati MIME standard. I codificatori da usare sono specificati nella descrizione del servizio.

Se si compila un client del servizio Web XML utilizzando ASP.NET, è necessario creare una classe proxy derivata indirettamente o direttamente da WebClientProtocol per il servizio Web XML che si desidera chiamare. Quando il client del servizio Web XML chiama tramite HTTP, derivare la classe HttpSimpleClientProtocolproxy , che a sua volta deriva da WebClientProtocol.

HttpGetClientProtocol e HttpPostClientProtocol derivano da HttpSimpleClientProtocol, fornendo il supporto per chiamare un metodo di servizio Web XML usando rispettivamente HTTP-GET e HTTP-POST. I client che chiamano un servizio Web XML tramite SOAP devono derivare da SoapHttpClientProtocol.

Per informazioni dettagliate sulla creazione di una classe proxy, vedere Creazione di un proxy del servizio Web XML.

Vedi anche

• HttpGetClientProtocol
• HttpSimpleClientProtocol
• WebClientProtocol
• SoapHttpClientProtocol