PollyHttpClientBuilderExtensions.AddPolicyHandler 方法

定义

命名空间:

Microsoft.Extensions.DependencyInjection

程序集:

Microsoft.Extensions.Http.Polly.dll

包:

Microsoft.Extensions.Http.Polly v9.0.0-rc.2.24474.3

重载

AddPolicyHandler(IHttpClientBuilder, IAsyncPolicy<HttpResponseMessage>)	添加 PolicyHttpMessageHandler，它将使用提供的 IAsyncPolicy`1 将请求执行涵盖在内。
AddPolicyHandler(IHttpClientBuilder, Func<IServiceProvider,HttpRequestMessage,IAsyncPolicy<HttpResponseMessage>>)	添加 PolicyHttpMessageHandler，它将使用 policySelector 返回的策略将请求执行涵盖在内。
AddPolicyHandler(IHttpClientBuilder, Func<HttpRequestMessage,IAsyncPolicy<HttpResponseMessage>>)	添加 PolicyHttpMessageHandler，它将使用 policySelector 返回的策略将请求执行涵盖在内。
AddPolicyHandler(IHttpClientBuilder, Func<IServiceProvider,HttpRequestMessage, String,IAsyncPolicy<HttpResponseMessage>>, Func<HttpRequestMessage, String>)	添加一个 ， PolicyHttpMessageHandler 它将使用通过执行提供的密钥选择逻辑 keySelector 和 policyFactory返回的策略来包围请求执行。

AddPolicyHandler(IHttpClientBuilder, IAsyncPolicy<HttpResponseMessage>)

添加 PolicyHttpMessageHandler，它将使用提供的 IAsyncPolicy`1 将请求执行涵盖在内。

public:
[System::Runtime::CompilerServices::Extension]
 static Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ AddPolicyHandler(Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ builder, Polly::IAsyncPolicy<System::Net::Http::HttpResponseMessage ^> ^ policy);

public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddPolicyHandler (this Microsoft.Extensions.DependencyInjection.IHttpClientBuilder builder, Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage> policy);

static member AddPolicyHandler : Microsoft.Extensions.DependencyInjection.IHttpClientBuilder * Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage> -> Microsoft.Extensions.DependencyInjection.IHttpClientBuilder

<Extension()>
Public Function AddPolicyHandler (builder As IHttpClientBuilder, policy As IAsyncPolicy(Of HttpResponseMessage)) As IHttpClientBuilder

参数

builder

IHttpClientBuilder

IHttpClientBuilder

policy

IAsyncPolicy<HttpResponseMessage>

IAsyncPolicy`1

返回

IHttpClientBuilder

可用于配置客户端的 IHttpClientBuilder。

注解

有关配置策略的指导，请参阅 上的 PolicyHttpMessageHandler 说明。

AddPolicyHandler(IHttpClientBuilder, Func<IServiceProvider,HttpRequestMessage,IAsyncPolicy<HttpResponseMessage>>)

添加 PolicyHttpMessageHandler，它将使用 policySelector 返回的策略将请求执行涵盖在内。

public:
[System::Runtime::CompilerServices::Extension]
 static Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ AddPolicyHandler(Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ builder, Func<IServiceProvider ^, System::Net::Http::HttpRequestMessage ^, Polly::IAsyncPolicy<System::Net::Http::HttpResponseMessage ^> ^> ^ policySelector);

public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddPolicyHandler (this Microsoft.Extensions.DependencyInjection.IHttpClientBuilder builder, Func<IServiceProvider,System.Net.Http.HttpRequestMessage,Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage>> policySelector);

static member AddPolicyHandler : Microsoft.Extensions.DependencyInjection.IHttpClientBuilder * Func<IServiceProvider, System.Net.Http.HttpRequestMessage, Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage>> -> Microsoft.Extensions.DependencyInjection.IHttpClientBuilder

<Extension()>
Public Function AddPolicyHandler (builder As IHttpClientBuilder, policySelector As Func(Of IServiceProvider, HttpRequestMessage, IAsyncPolicy(Of HttpResponseMessage))) As IHttpClientBuilder

参数

builder

IHttpClientBuilder

IHttpClientBuilder

policySelector

Func<IServiceProvider,HttpRequestMessage,IAsyncPolicy<HttpResponseMessage>>

选择要应用到当前请求的 IAsyncPolicy`1。

返回

IHttpClientBuilder

可用于配置客户端的 IHttpClientBuilder。

注解

有关配置策略的指导，请参阅 上的 PolicyHttpMessageHandler 说明。

AddPolicyHandler(IHttpClientBuilder, Func<HttpRequestMessage,IAsyncPolicy<HttpResponseMessage>>)

添加 PolicyHttpMessageHandler，它将使用 policySelector 返回的策略将请求执行涵盖在内。

public:
[System::Runtime::CompilerServices::Extension]
 static Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ AddPolicyHandler(Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ builder, Func<System::Net::Http::HttpRequestMessage ^, Polly::IAsyncPolicy<System::Net::Http::HttpResponseMessage ^> ^> ^ policySelector);

public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddPolicyHandler (this Microsoft.Extensions.DependencyInjection.IHttpClientBuilder builder, Func<System.Net.Http.HttpRequestMessage,Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage>> policySelector);

static member AddPolicyHandler : Microsoft.Extensions.DependencyInjection.IHttpClientBuilder * Func<System.Net.Http.HttpRequestMessage, Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage>> -> Microsoft.Extensions.DependencyInjection.IHttpClientBuilder

<Extension()>
Public Function AddPolicyHandler (builder As IHttpClientBuilder, policySelector As Func(Of HttpRequestMessage, IAsyncPolicy(Of HttpResponseMessage))) As IHttpClientBuilder

参数

builder

IHttpClientBuilder

IHttpClientBuilder

policySelector

Func<HttpRequestMessage,IAsyncPolicy<HttpResponseMessage>>

选择要应用到当前请求的 IAsyncPolicy`1。

返回

IHttpClientBuilder

可用于配置客户端的 IHttpClientBuilder。

注解

有关配置策略的指导，请参阅 上的 PolicyHttpMessageHandler 说明。

AddPolicyHandler(IHttpClientBuilder, Func<IServiceProvider,HttpRequestMessage, String,IAsyncPolicy<HttpResponseMessage>>, Func<HttpRequestMessage, String>)

添加一个 ， PolicyHttpMessageHandler 它将使用通过执行提供的密钥选择逻辑 keySelector 和 policyFactory返回的策略来包围请求执行。

public:
[System::Runtime::CompilerServices::Extension]
 static Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ AddPolicyHandler(Microsoft::Extensions::DependencyInjection::IHttpClientBuilder ^ builder, Func<IServiceProvider ^, System::Net::Http::HttpRequestMessage ^, System::String ^, Polly::IAsyncPolicy<System::Net::Http::HttpResponseMessage ^> ^> ^ policyFactory, Func<System::Net::Http::HttpRequestMessage ^, System::String ^> ^ keySelector);

public static Microsoft.Extensions.DependencyInjection.IHttpClientBuilder AddPolicyHandler (this Microsoft.Extensions.DependencyInjection.IHttpClientBuilder builder, Func<IServiceProvider,System.Net.Http.HttpRequestMessage,string,Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage>> policyFactory, Func<System.Net.Http.HttpRequestMessage,string> keySelector);

static member AddPolicyHandler : Microsoft.Extensions.DependencyInjection.IHttpClientBuilder * Func<IServiceProvider, System.Net.Http.HttpRequestMessage, string, Polly.IAsyncPolicy<System.Net.Http.HttpResponseMessage>> * Func<System.Net.Http.HttpRequestMessage, string> -> Microsoft.Extensions.DependencyInjection.IHttpClientBuilder

<Extension()>
Public Function AddPolicyHandler (builder As IHttpClientBuilder, policyFactory As Func(Of IServiceProvider, HttpRequestMessage, String, IAsyncPolicy(Of HttpResponseMessage)), keySelector As Func(Of HttpRequestMessage, String)) As IHttpClientBuilder

参数

builder

IHttpClientBuilder

IHttpClientBuilder

policyFactory

Func<IServiceProvider,HttpRequestMessage,String,IAsyncPolicy<HttpResponseMessage>>

根据所选密钥选择要应用于当前请求的 IAsyncPolicy`1。

keySelector

Func<HttpRequestMessage,String>

用于根据 HttpRequestMessage 生成策略密钥的委托。

返回

IHttpClientBuilder

可用于配置客户端的 IHttpClientBuilder。

注解

生成的 policyFactory 密钥首先用于从 IPolicyRegistry 查找现有策略。 如果注册表中不存在策略，请使用 policyFactory 创建一个新策略，并将其添加到 IPolicyRegistry 中。

有关配置策略的指导，请参阅 上的 PolicyHttpMessageHandler 说明。