ServiceDescription Classe

Definizione

public ref class ServiceDescription

public class ServiceDescription

type ServiceDescription = class

Public Class ServiceDescription

Ereditarietà

Object

ServiceDescription

Esempio

Nell'esempio seguente vengono illustrati vari modi per creare un'istanza di un ServiceDescription oggetto .

Uri baseAddress = new Uri("http://localhost:8001/Simple");
ServiceHost serviceHost = new ServiceHost(typeof(CalculatorService), baseAddress);

serviceHost.AddServiceEndpoint(
    typeof(ICalculator),
    new WSHttpBinding(),
    "CalculatorServiceObject");

// Enable Mex
ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
smb.HttpGetEnabled = true;
serviceHost.Description.Behaviors.Add(smb);

serviceHost.Open();

// Use Default constructor
ServiceDescription sd = new ServiceDescription();

// Create ServiceDescription from a collection of service endpoints
List<ServiceEndpoint> endpoints = new List<ServiceEndpoint>();
ContractDescription conDescr = new ContractDescription("ICalculator");
EndpointAddress endpointAddress = new EndpointAddress("http://localhost:8001/Basic");
ServiceEndpoint ep = new ServiceEndpoint(conDescr, new BasicHttpBinding(), endpointAddress);
endpoints.Add(ep);
ServiceDescription sd2 = new ServiceDescription(endpoints);

// Iterate through the list of behaviors in the ServiceDescription
ServiceDescription svcDesc = serviceHost.Description;
KeyedByTypeCollection<IServiceBehavior> sbCol = svcDesc.Behaviors;
foreach (IServiceBehavior behavior in sbCol)
{
    Console.WriteLine("Behavior: {0}", behavior.ToString());
}

// svcDesc is a ServiceDescription.
svcDesc = serviceHost.Description;
string configName = svcDesc.ConfigurationName;
Console.WriteLine("Configuration name: {0}", configName);

// Iterate through the endpoints contained in the ServiceDescription
ServiceEndpointCollection sec = svcDesc.Endpoints;
foreach (ServiceEndpoint se in sec)
{
    Console.WriteLine("Endpoint:");
    Console.WriteLine("\tAddress: {0}", se.Address.ToString());
    Console.WriteLine("\tBinding: {0}", se.Binding.ToString());
    Console.WriteLine("\tContract: {0}", se.Contract.ToString());
    KeyedByTypeCollection<IEndpointBehavior> behaviors = se.Behaviors;
    foreach (IEndpointBehavior behavior in behaviors)
    {
        Console.WriteLine("Behavior: {0}", behavior.ToString());
    }
}

string name = svcDesc.Name;
Console.WriteLine("Service Description name: {0}", name);

string namespc = svcDesc.Namespace;
Console.WriteLine("Service Description namespace: {0}", namespc);

Type serviceType = svcDesc.ServiceType;
Console.WriteLine("Service Type: {0}", serviceType.ToString());

// Instantiate a service description specifying a service object
// Note: Endpoints collection and other properties will be null since
// we have not specified them
CalculatorService svcObj = new CalculatorService();
ServiceDescription sd3 = ServiceDescription.GetService(svcObj);
String serviceName = sd3.Name;
Console.WriteLine("Service name: {0}", serviceName);

Dim baseAddress As New Uri("http://localhost:8001/Simple")
Dim serviceHost As New ServiceHost(GetType(CalculatorService), baseAddress)

serviceHost.AddServiceEndpoint(GetType(ICalculator), New WSHttpBinding(), "CalculatorServiceObject")

' Enable Mex
Dim smb As New ServiceMetadataBehavior()
smb.HttpGetEnabled = True
serviceHost.Description.Behaviors.Add(smb)

serviceHost.Open()

' Use Default constructor
Dim sd As New ServiceDescription()

' Create ServiceDescription from a collection of service endpoints
Dim endpoints As New List(Of ServiceEndpoint)()
Dim conDescr As New ContractDescription("ICalculator")
Dim endpointAddress As New EndpointAddress("http://localhost:8001/Basic")
Dim ep As New ServiceEndpoint(conDescr, New BasicHttpBinding(), endpointAddress)
endpoints.Add(ep)
Dim sd2 As New ServiceDescription(endpoints)

' Iterate through the list of behaviors in the ServiceDescription
Dim svcDesc As ServiceDescription = serviceHost.Description
Dim sbCol As KeyedByTypeCollection(Of IServiceBehavior) = svcDesc.Behaviors
For Each behavior As IServiceBehavior In sbCol
    Console.WriteLine("Behavior: {0}", CType(behavior, Object).ToString())
Next behavior

' svcDesc is a ServiceDescription.
svcDesc = serviceHost.Description
Dim configName As String = svcDesc.ConfigurationName
Console.WriteLine("Configuration name: {0}", configName)

' Iterate through the endpoints contained in the ServiceDescription
Dim sec As ServiceEndpointCollection = svcDesc.Endpoints
For Each se As ServiceEndpoint In sec
    Console.WriteLine("Endpoint:")
    Console.WriteLine(Constants.vbTab & "Address: {0}", se.Address.ToString())
    Console.WriteLine(Constants.vbTab & "Binding: {0}", se.Binding.ToString())
    Console.WriteLine(Constants.vbTab & "Contract: {0}", se.Contract.ToString())
    Dim behaviors As KeyedByTypeCollection(Of IEndpointBehavior) = se.Behaviors
    For Each behavior As IEndpointBehavior In behaviors
        Console.WriteLine("Behavior: {0}", CType(behavior, Object).ToString())
    Next behavior
Next se

Dim name = svcDesc.Name
Console.WriteLine("Service Description name: {0}", name)

Dim namespc = svcDesc.Namespace
Console.WriteLine("Service Description namespace: {0}", namespc)

Dim serviceType As Type = svcDesc.ServiceType
Console.WriteLine("Service Type: {0}", serviceType.ToString())

' Instantiate a service description specifying a service object
' Note: Endpoints collection and other properties will be null since 
' we have not specified them
Dim svcObj As New CalculatorService()
Dim sd3 As ServiceDescription = ServiceDescription.GetService(svcObj)
Dim serviceName = sd3.Name
Console.WriteLine("Service name: {0}", serviceName)

Commenti

Le informazioni contenute in ServiceDescription vengono utilizzate dal sistema Windows Communication Foundation (WCF) per compilare i componenti di runtime per il servizio.

Usare questo metodo quando si aggiungono comportamenti personalizzati per estendere ServiceHost. A livello di codice, è necessario Add(T) il comportamento del servizio personalizzato a Behaviors prima di quando si chiama il Open metodo sull'oggetto ServiceHost .

I GetService(Object) metodi e GetService(Type) sono disponibili per riflettere sui comportamenti che usano il modello di programmazione Windows Communication Foundation (WCF) quando si sostituisce ServiceHostBase con il proprio meccanismo di hosting.

Esportare i metadati relativi a un endpoint di servizio passando ServiceEndpoint come parametro a ExportEndpoint(ServiceEndpoint). Dopo aver chiamato questo metodo o uno degli altri metodi di esportazione forniti da WsdlExporter, utilizzare la GeneratedWsdlDocuments proprietà per restituire l'insieme di ServiceDescription oggetti .