WebResponse.ResponseUri 属性

定义

命名空间:

System.Net

程序集:

System.Net.Requests.dll

Source:

WebResponse.cs

当在派生类中重写时，获取实际响应此请求的 Internet 资源的 URI。

public:
 virtual property Uri ^ ResponseUri { Uri ^ get(); };

public virtual Uri ResponseUri { get; }

member this.ResponseUri : Uri

Public Overridable ReadOnly Property ResponseUri As Uri

属性值

Uri

Uri 类的实例，包含实际响应此请求的 Internet 资源的 URI。

例外

NotSupportedException

当未在子类中重写该属性时，试图获取或设置该属性。

示例

以下示例使用 ResponseUri 属性来确定 的来源位置 WebResponse 。

Uri^ ourUri = gcnew Uri( url );

// Create a 'WebRequest' object with the specified url.
WebRequest^ myWebRequest = WebRequest::Create( url );

// Send the 'WebRequest' and wait for response.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Use "ResponseUri" property to get the actual Uri from where the response was attained.
if ( ourUri->Equals( myWebResponse->ResponseUri ) )
{
   Console::WriteLine( "\nRequest Url : {0} was not redirected", url );
}
else
{
   Console::WriteLine( "\nRequest Url : {0} was redirected to {1}", url, myWebResponse->ResponseUri );
}

// Release resources of response object.
myWebResponse->Close();

Uri ourUri = new Uri(url);            

// Create a 'WebRequest' object with the specified url. 
WebRequest myWebRequest = WebRequest.Create(url); 

// Send the 'WebRequest' and wait for response.
WebResponse myWebResponse = myWebRequest.GetResponse(); 

// Use "ResponseUri" property to get the actual Uri from where the response was attained.
if (ourUri.Equals(myWebResponse.ResponseUri))
    Console.WriteLine("\nRequest Url : {0} was not redirected",url);   
else
    Console.WriteLine("\nRequest Url : {0} was redirected to {1}",url,myWebResponse.ResponseUri);   
// Release resources of response object.
myWebResponse.Close();

Dim ourUri As New Uri(url)
' Create a 'WebRequest' object with the specified url. 

Dim myWebRequest As WebRequest = WebRequest.Create(url)

' Send the 'WebRequest' and wait for response.
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()

' "ResponseUri" property is used to get the actual Uri from where the response was attained.
If ourUri.Equals(myWebResponse.ResponseUri) Then
    Console.WriteLine(ControlChars.Cr + "Request Url : {0} was not redirected", url)
Else
    Console.WriteLine(ControlChars.Cr + "Request Url : {0} was redirected to {1}", url, myWebResponse.ResponseUri)
End If 

' Release resources of response object.
myWebResponse.Close()

注解

属性 ResponseUri 包含实际提供响应数据的 Internet 资源的 URI。 如果基础协议允许重定向请求，则此资源可能不是最初请求的 URI。

注意

类 WebResponse 是类 abstract 。 实例在运行时的实际行为 WebResponse 由 返回 WebRequest.GetResponse的后代类决定。 有关默认值和异常的详细信息，请参阅子代类的文档，例如 HttpWebResponse 和 FileWebResponse。