HttpClient.GetAsync 方法 (System.Net.Http)

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public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(System::String ^ requestUri);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string requestUri);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string? requestUri);

member this.GetAsync : string -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As String) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(Uri ^ requestUri);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri requestUri);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri? requestUri);

member this.GetAsync : Uri -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As Uri) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(System::String ^ requestUri, System::Net::Http::HttpCompletionOption completionOption);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string requestUri, System.Net.Http.HttpCompletionOption completionOption);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string? requestUri, System.Net.Http.HttpCompletionOption completionOption);

member this.GetAsync : string * System.Net.Http.HttpCompletionOption -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As String, completionOption As HttpCompletionOption) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(System::String ^ requestUri, System::Threading::CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string requestUri, System.Threading.CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string? requestUri, System.Threading.CancellationToken cancellationToken);

member this.GetAsync : string * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As String, cancellationToken As CancellationToken) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(Uri ^ requestUri, System::Net::Http::HttpCompletionOption completionOption);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri requestUri, System.Net.Http.HttpCompletionOption completionOption);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri? requestUri, System.Net.Http.HttpCompletionOption completionOption);

member this.GetAsync : Uri * System.Net.Http.HttpCompletionOption -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As Uri, completionOption As HttpCompletionOption) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(Uri ^ requestUri, System::Threading::CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri requestUri, System.Threading.CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri? requestUri, System.Threading.CancellationToken cancellationToken);

member this.GetAsync : Uri * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As Uri, cancellationToken As CancellationToken) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(System::String ^ requestUri, System::Net::Http::HttpCompletionOption completionOption, System::Threading::CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string requestUri, System.Net.Http.HttpCompletionOption completionOption, System.Threading.CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (string? requestUri, System.Net.Http.HttpCompletionOption completionOption, System.Threading.CancellationToken cancellationToken);

member this.GetAsync : string * System.Net.Http.HttpCompletionOption * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As String, completionOption As HttpCompletionOption, cancellationToken As CancellationToken) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。

public:
 System::Threading::Tasks::Task<System::Net::Http::HttpResponseMessage ^> ^ GetAsync(Uri ^ requestUri, System::Net::Http::HttpCompletionOption completionOption, System::Threading::CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri requestUri, System.Net.Http.HttpCompletionOption completionOption, System.Threading.CancellationToken cancellationToken);

public System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage> GetAsync (Uri? requestUri, System.Net.Http.HttpCompletionOption completionOption, System.Threading.CancellationToken cancellationToken);

member this.GetAsync : Uri * System.Net.Http.HttpCompletionOption * System.Threading.CancellationToken -> System.Threading.Tasks.Task<System.Net.Http.HttpResponseMessage>

Public Function GetAsync (requestUri As Uri, completionOption As HttpCompletionOption, cancellationToken As CancellationToken) As Task(Of HttpResponseMessage)

HttpRequestException 在所有适用的 .NET Framework 版本上引发。

TaskCanceledException 不会在所有适用的 .NET Core 版本上引发任何内部异常。

TaskCanceledException 在 .NET 5 及更高版本上引发嵌套 TimeoutException 的。