如何:从服务终结点导出元数据
本主题介绍如何从服务终结点导出元数据。
从服务终结点导出元数据
创建一个新的 Visual Studio 控制台应用程序项目。 在生成的 Program.cs 文件的 main() 方法中添加下列步骤所示的代码。
创建 WsdlExporter。
WsdlExporter exporter = new WsdlExporter();
Dim exporter As New WsdlExporter()
将 PolicyVersion 属性设置为 PolicyVersion 枚举值之一。 此示例将该值设置为与 WS-Policy 1.5 对应的 Policy15。
exporter.PolicyVersion = PolicyVersion.Policy15;
exporter.PolicyVersion = PolicyVersion.Policy15
创建 ServiceEndpoint 对象的数组。
ServiceEndpoint [] myServiceEndpoints = new ServiceEndpoint[2]; ContractDescription myDescription = new ContractDescription ("myContract"); myServiceEndpoints[0] = new ServiceEndpoint(myDescription,new BasicHttpBinding(),new EndpointAddress("http://localhost/myservice")); myServiceEndpoints[1] = new ServiceEndpoint(myDescription,new BasicHttpBinding(),new EndpointAddress("http://localhost/myservice"));
Dim myServiceEndpoints() As ServiceEndpoint = New ServiceEndpoint(1) {} Dim myDescription As New ContractDescription("myContract") myServiceEndpoints(0) = New ServiceEndpoint(myDescription, New BasicHttpBinding(), New EndpointAddress("http://localhost/myservice")) myServiceEndpoints(1) = New ServiceEndpoint(myDescription, New BasicHttpBinding(), New EndpointAddress("http://localhost/myservice"))
为每个服务终结点导出元数据。
// Export all endpoints for each endpoint in collection. foreach (ServiceEndpoint endpoint in myServiceEndpoints) { exporter.ExportEndpoint(endpoint); }
'Export all endpoints for each endpoint in collection. For Each endpoint As ServiceEndpoint In myServiceEndpoints exporter.ExportEndpoint(endpoint) Next
检查以确保在导出过程中不会发生任何错误,并检索元数据。
// If there are no errors, get the documents. MetadataSet metadataDocs = null; if (exporter.Errors.Count != 0) { metadataDocs = exporter.GetGeneratedMetadata(); }
'If there are no errors, get the documents. Dim metadataDocs As MetadataSet metadataDocs = Nothing If (exporter.Errors.Count = 0) Then metadataDocs = exporter.GetGeneratedMetadata() End If
现在可以使用元数据,例如通过调用 WriteTo(XmlWriter) 方法将它写入文件。
示例
下面列出了此示例的完整代码。
using System;
using System.ServiceModel;
using System.ServiceModel.Description;
namespace WsdlExporterSample
{
class Program
{
static void Main(string[] args)
{
WsdlExporter exporter = new WsdlExporter();
exporter.PolicyVersion = PolicyVersion.Policy15;
ServiceEndpoint [] myServiceEndpoints = new ServiceEndpoint[2];
ContractDescription myDescription = new ContractDescription ("myContract");
myServiceEndpoints[0] = new ServiceEndpoint(myDescription,new BasicHttpBinding(),new EndpointAddress("http://localhost/myservice"));
myServiceEndpoints[1] = new ServiceEndpoint(myDescription,new BasicHttpBinding(),new EndpointAddress("http://localhost/myservice"));
// Export all endpoints for each endpoint in collection.
foreach (ServiceEndpoint endpoint in myServiceEndpoints)
{
exporter.ExportEndpoint(endpoint);
}
// If there are no errors, get the documents.
MetadataSet metadataDocs = null;
if (exporter.Errors.Count != 0)
{
metadataDocs = exporter.GetGeneratedMetadata();
}
}
}
}
Imports System.ServiceModel
Imports System.ServiceModel.Description
Module Module1
Sub Main()
Dim exporter As New WsdlExporter()
exporter.PolicyVersion = PolicyVersion.Policy15
Dim myServiceEndpoints() As ServiceEndpoint = New ServiceEndpoint(1) {}
Dim myDescription As New ContractDescription("myContract")
myServiceEndpoints(0) = New ServiceEndpoint(myDescription, New BasicHttpBinding(), New EndpointAddress("http://localhost/myservice"))
myServiceEndpoints(1) = New ServiceEndpoint(myDescription, New BasicHttpBinding(), New EndpointAddress("http://localhost/myservice"))
'Export all endpoints for each endpoint in collection.
For Each endpoint As ServiceEndpoint In myServiceEndpoints
exporter.ExportEndpoint(endpoint)
Next
'If there are no errors, get the documents.
Dim metadataDocs As MetadataSet
metadataDocs = Nothing
If (exporter.Errors.Count = 0) Then
metadataDocs = exporter.GetGeneratedMetadata()
End If
End Sub
End Module
编译代码
编译 Program.cs 时引用 System.ServiceModel.dll。