为 ASP.NET 网站配置 Application Insights

此过程将 ASP.NET Web 应用配置为将遥测发送到 Azure Application Insights 服务。 它适用于托管在你自己的本地或云中 IIS 服务器上的 ASP.NET 应用。

先决条件

若要要将 Application Insights 添加到 ASP.NET 网站,需要:

如果没有 Azure 订阅,请在开始前创建一个试用帐户

重要

建议使用连接字符串而不是检测密钥。 新的 Azure 区域要求使用连接字符串而不是检测密钥。 连接字符串用于标识要与遥测数据关联的资源。 它还允许你修改可供你的资源将其用作遥测目标的终结点。 你需要复制连接字符串,并将其添加到应用程序的代码或环境变量中。

创建基本的 ASP.NET Web 应用

  1. 启动 Visual Studio 2019。
  2. 选择“文件” > “新建” > “项目” 。
  3. 选择“ASP.NET Web 应用程序(.NET Framework) C#”。
  4. 输入项目名称 > 选择“创建”。
  5. 选择“MVC” > “创建” 。

自动添加 Application Insights

本部分将指导你将 Application Insights 自动添加到基于模板的 ASP.NET Web 应用。 在 Visual Studio 中的 ASP.NET Web 应用项目中,请执行以下操作:

  1. 选择“添加 Application Insights 遥测” > “Application Insights Sdk (本地)” > “下一步” > “完成” > “关闭” 。

  2. 打开 ApplicationInsights.config 文件。

  3. 在结束标记 </ApplicationInsights> 之前,添加一行,其中包含 Application Insights 资源的检测密钥。 可以在新建的 Application Insights 资源(作为本文先决条件之一而创建)的“概述”窗格中找到检测密钥。

    <InstrumentationKey>your-instrumentation-key-goes-here</InstrumentationKey>
    
  4. 选择“项目” > “管理 NuGet 包” > “更新”>“将每个 Microsoft.ApplicationInsights NuGet 包更新到最新的稳定版本” 。

  5. 通过选择“IIS Express”来运行应用程序。 将启动基本 ASP.NET 应用。 浏览站点上的页面时,遥测将发送到 Application Insights。

手动添加 Application Insights

本部分将指导你将 Application Insights 手动添加到基于模板的 ASP.NET Web 应用。 本部分假定你使用的是基于标准 ASP.NET Framework MVC Web 应用模板的 Web 应用。

  1. 将以下 NuGet 包及其依赖项添加到项目中:

  2. 在某些情况下,将自动为你创建 ApplicationInsights.config 文件。 如果该文件已存在,请跳到步骤 #4。 如果没有自动创建,则需要自行创建。 在项目中与 Global.asax 文件相同的级别上,创建一个名为 ApplicationInsights.config 的新文件

  3. 将以下 XML 配置复制到新创建的文件中:

    <?xml version="1.0" encoding="utf-8"?>
    <ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings">
     <TelemetryInitializers>
       <Add Type="Microsoft.ApplicationInsights.DependencyCollector.HttpDependenciesParsingTelemetryInitializer, Microsoft.AI.DependencyCollector" />
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.AzureRoleEnvironmentTelemetryInitializer, Microsoft.AI.WindowsServer" />
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.BuildInfoConfigComponentVersionTelemetryInitializer, Microsoft.AI.WindowsServer" />
       <Add Type="Microsoft.ApplicationInsights.Web.WebTestTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.SyntheticUserAgentTelemetryInitializer, Microsoft.AI.Web">
         <!-- Extended list of bots:
               search|spider|crawl|Bot|Monitor|BrowserMob|BingPreview|PagePeeker|WebThumb|URL2PNG|ZooShot|GomezA|Google SketchUp|Read Later|KTXN|KHTE|Keynote|Pingdom|AlwaysOn|zao|borg|oegp|silk|Xenu|zeal|NING|htdig|lycos|slurp|teoma|voila|yahoo|Sogou|CiBra|Nutch|Java|JNLP|Daumoa|Genieo|ichiro|larbin|pompos|Scrapy|snappy|speedy|vortex|favicon|indexer|Riddler|scooter|scraper|scrubby|WhatWeb|WinHTTP|voyager|archiver|Icarus6j|mogimogi|Netvibes|altavista|charlotte|findlinks|Retreiver|TLSProber|WordPress|wsr-agent|http client|Python-urllib|AppEngine-Google|semanticdiscovery|facebookexternalhit|web/snippet|Google-HTTP-Java-Client-->
         <Filters>search|spider|crawl|Bot|Monitor|AlwaysOn</Filters>
       </Add>
       <Add Type="Microsoft.ApplicationInsights.Web.ClientIpHeaderTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.AzureAppServiceRoleNameFromHostNameHeaderInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.OperationNameTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.OperationCorrelationTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.UserTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.AuthenticatedUserIdTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.AccountIdTelemetryInitializer, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.SessionTelemetryInitializer, Microsoft.AI.Web" />
     </TelemetryInitializers>
     <TelemetryModules>
       <Add Type="Microsoft.ApplicationInsights.DependencyCollector.DependencyTrackingTelemetryModule, Microsoft.AI.DependencyCollector">
         <ExcludeComponentCorrelationHttpHeadersOnDomains>
           <!-- 
           Requests to the following hostnames will not be modified by adding correlation headers.         
           Add entries here to exclude additional hostnames.
           NOTE: this configuration will be lost upon NuGet upgrade.
           -->
           <Add>core.chinacloudapi.cn</Add>
           <Add>core.chinacloudapi.cn</Add>
           <Add>core.cloudapi.de</Add>
           <Add>core.usgovcloudapi.net</Add>
         </ExcludeComponentCorrelationHttpHeadersOnDomains>
         <IncludeDiagnosticSourceActivities>
           <Add>Microsoft.Azure.EventHubs</Add>
           <Add>Microsoft.Azure.ServiceBus</Add>
         </IncludeDiagnosticSourceActivities>
       </Add>
       <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.PerformanceCollectorModule, Microsoft.AI.PerfCounterCollector">
         <!--
         Use the following syntax here to collect additional performance counters:
    
         <Counters>
           <Add PerformanceCounter="\Process(??APP_WIN32_PROC??)\Handle Count" ReportAs="Process handle count" />
           ...
         </Counters>
    
         PerformanceCounter must be either \CategoryName(InstanceName)\CounterName or \CategoryName\CounterName
    
         NOTE: performance counters configuration will be lost upon NuGet upgrade.
    
         The following placeholders are supported as InstanceName:
           ??APP_WIN32_PROC?? - instance name of the application process  for Win32 counters.
           ??APP_W3SVC_PROC?? - instance name of the application IIS worker process for IIS/ASP.NET counters.
           ??APP_CLR_PROC?? - instance name of the application CLR process for .NET counters.
         -->
       </Add>
       <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.QuickPulse.QuickPulseTelemetryModule, Microsoft.AI.PerfCounterCollector" />
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.AppServicesHeartbeatTelemetryModule, Microsoft.AI.WindowsServer" />
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.AzureInstanceMetadataTelemetryModule, Microsoft.AI.WindowsServer">
         <!--
         Remove individual fields collected here by adding them to the ApplicationInsighs.HeartbeatProvider 
         with the following syntax:
    
         <Add Type="Microsoft.ApplicationInsights.Extensibility.Implementation.Tracing.DiagnosticsTelemetryModule, Microsoft.ApplicationInsights">
           <ExcludedHeartbeatProperties>
             <Add>osType</Add>
             <Add>location</Add>
             <Add>name</Add>
             <Add>offer</Add>
             <Add>platformFaultDomain</Add>
             <Add>platformUpdateDomain</Add>
             <Add>publisher</Add>
             <Add>sku</Add>
             <Add>version</Add>
             <Add>vmId</Add>
             <Add>vmSize</Add>
             <Add>subscriptionId</Add>
             <Add>resourceGroupName</Add>
             <Add>placementGroupId</Add>
             <Add>tags</Add>
             <Add>vmScaleSetName</Add>
           </ExcludedHeartbeatProperties>
         </Add>
    
         NOTE: exclusions will be lost upon upgrade.
         -->
       </Add>
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.DeveloperModeWithDebuggerAttachedTelemetryModule, Microsoft.AI.WindowsServer" />
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.UnhandledExceptionTelemetryModule, Microsoft.AI.WindowsServer" />
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.UnobservedExceptionTelemetryModule, Microsoft.AI.WindowsServer">
         <!--</Add>
       <Add Type="Microsoft.ApplicationInsights.WindowsServer.FirstChanceExceptionStatisticsTelemetryModule, Microsoft.AI.WindowsServer">-->
       </Add>
       <Add Type="Microsoft.ApplicationInsights.Web.RequestTrackingTelemetryModule, Microsoft.AI.Web">
         <Handlers>
           <!-- 
           Add entries here to filter out additional handlers: 
    
           NOTE: handler configuration will be lost upon NuGet upgrade.
           -->
           <Add>Microsoft.VisualStudio.Web.PageInspector.Runtime.Tracing.RequestDataHttpHandler</Add>
           <Add>System.Web.StaticFileHandler</Add>
           <Add>System.Web.Handlers.AssemblyResourceLoader</Add>
           <Add>System.Web.Optimization.BundleHandler</Add>
           <Add>System.Web.Script.Services.ScriptHandlerFactory</Add>
           <Add>System.Web.Handlers.TraceHandler</Add>
           <Add>System.Web.Services.Discovery.DiscoveryRequestHandler</Add>
           <Add>System.Web.HttpDebugHandler</Add>
         </Handlers>
       </Add>
       <Add Type="Microsoft.ApplicationInsights.Web.ExceptionTrackingTelemetryModule, Microsoft.AI.Web" />
       <Add Type="Microsoft.ApplicationInsights.Web.AspNetDiagnosticTelemetryModule, Microsoft.AI.Web" />
     </TelemetryModules>
     <ApplicationIdProvider Type="Microsoft.ApplicationInsights.Extensibility.Implementation.ApplicationId.ApplicationInsightsApplicationIdProvider, Microsoft.ApplicationInsights" />
     <TelemetrySinks>
       <Add Name="default">
         <TelemetryProcessors>
           <Add Type="Microsoft.ApplicationInsights.Extensibility.PerfCounterCollector.QuickPulse.QuickPulseTelemetryProcessor, Microsoft.AI.PerfCounterCollector" />
           <Add Type="Microsoft.ApplicationInsights.Extensibility.AutocollectedMetricsExtractor, Microsoft.ApplicationInsights" />
           <Add Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.AdaptiveSamplingTelemetryProcessor, Microsoft.AI.ServerTelemetryChannel">
             <MaxTelemetryItemsPerSecond>5</MaxTelemetryItemsPerSecond>
             <ExcludedTypes>Event</ExcludedTypes>
           </Add>
           <Add Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.AdaptiveSamplingTelemetryProcessor, Microsoft.AI.ServerTelemetryChannel">
             <MaxTelemetryItemsPerSecond>5</MaxTelemetryItemsPerSecond>
             <IncludedTypes>Event</IncludedTypes>
           </Add>
         </TelemetryProcessors>
         <TelemetryChannel Type="Microsoft.ApplicationInsights.WindowsServer.TelemetryChannel.ServerTelemetryChannel, Microsoft.AI.ServerTelemetryChannel" />
       </Add>
     </TelemetrySinks>
     <!-- 
       Learn more about Application Insights configuration with ApplicationInsights.config here: 
       http://go.microsoft.com/fwlink/?LinkID=513840
     -->
     <InstrumentationKey>your-instrumentation-key-here</InstrumentationKey>
    </ApplicationInsights>
    
  4. 在结束标记 </ApplicationInsights> 之前,添加 Application Insights 资源的检测密钥。 可以在新建的 Application Insights 资源(作为本文先决条件之一而创建)的“概述”窗格中找到检测密钥。

    <InstrumentationKey>your-instrumentation-key-goes-here</InstrumentationKey>
    
  5. 在项目中与 ApplicationInsights.config 文件相同的级别上,创建名为 ErrorHandler 的文件夹,其中包含名为 AiHandleErrorAttribute.cs 的新 C# 文件。 文件的内容将如下所示:

    using System;
    using System.Web.Mvc;
    using Microsoft.ApplicationInsights;
    
    namespace WebApplication10.ErrorHandler //namespace will vary based on your project name
    {
        [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, Inherited = true, AllowMultiple = true)] 
        public class AiHandleErrorAttribute : HandleErrorAttribute
        {
            public override void OnException(ExceptionContext filterContext)
            {
                if (filterContext != null && filterContext.HttpContext != null && filterContext.Exception != null)
                {
                    //If customError is Off, then AI HTTPModule will report the exception
                    if (filterContext.HttpContext.IsCustomErrorEnabled)
                    {   
                        var ai = new TelemetryClient();
                        ai.TrackException(filterContext.Exception);
                    } 
                }
                base.OnException(filterContext);
            }
        }
    }
    
    
  6. App_Start 文件夹中,打开 FilterConfig.cs 文件并进行更改,使其与示例相匹配:

    using System.Web;
    using System.Web.Mvc;
    
    namespace WebApplication10 //Namespace will vary based on project name
    {
        public class FilterConfig
        {
            public static void RegisterGlobalFilters(GlobalFilterCollection filters)
            {
                filters.Add(new ErrorHandler.AiHandleErrorAttribute());
            }
        }
    }
    
  7. 按如下所示更新 Web.config 文件:

    <?xml version="1.0" encoding="utf-8"?>
    <!--
      For more information on how to configure your ASP.NET application, please visit
      https://go.microsoft.com/fwlink/?LinkId=301880
      -->
    <configuration>
      <appSettings>
        <add key="webpages:Version" value="3.0.0.0" />
        <add key="webpages:Enabled" value="false" />
        <add key="ClientValidationEnabled" value="true" />
        <add key="UnobtrusiveJavaScriptEnabled" value="true" />
      </appSettings>
      <system.web>
        <compilation debug="true" targetFramework="4.7.2" />
        <httpRuntime targetFramework="4.7.2" />
        <httpModules>
          <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" />
          <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" />
        </httpModules>
      </system.web>
      <runtime>
        <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
          <dependentAssembly>
            <assemblyIdentity name="Antlr3.Runtime" publicKeyToken="eb42632606e9261f" />
            <bindingRedirect oldVersion="0.0.0.0-3.5.0.2" newVersion="3.5.0.2" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" />
            <bindingRedirect oldVersion="0.0.0.0-12.0.0.0" newVersion="12.0.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect oldVersion="0.0.0.0-1.6.5135.21930" newVersion="1.6.5135.21930" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
            <bindingRedirect oldVersion="1.0.0.0-5.2.7.0" newVersion="5.2.7.0" />
          </dependentAssembly>
          <dependentAssembly>
            <assemblyIdentity name="System.Memory" publicKeyToken="cc7b13ffcd2ddd51" culture="neutral" />
            <bindingRedirect oldVersion="0.0.0.0-4.0.1.1" newVersion="4.0.1.1" />
          </dependentAssembly>
        </assemblyBinding>
      </runtime>
      <system.codedom>
        <compilers>
          <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:1659;1699;1701" />
          <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" />
        </compilers>
      </system.codedom>
      <system.webServer>
        <validation validateIntegratedModeConfiguration="false" />
        <modules>
          <remove name="TelemetryCorrelationHttpModule" />
          <add name="TelemetryCorrelationHttpModule" type="Microsoft.AspNet.TelemetryCorrelation.TelemetryCorrelationHttpModule, Microsoft.AspNet.TelemetryCorrelation" preCondition="managedHandler" />
          <remove name="ApplicationInsightsWebTracking" />
          <add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
        </modules>
      </system.webServer>
    </configuration>
    
    

现在已成功配置服务器端应用程序监视。 如果运行 Web 应用,将能够看到遥测开始出现在 Application Insights 中。

添加客户端监视

前面几个部分提供了有关自动和手动配置服务器端监视的方法的指导。 若要添加客户端监视,将需要使用客户端 JavaScript SDK。 可以通过在页面 HTML 的结束标记 </head> 之前添加 JavaScript 代码片段来监视任何网页的客户端事务。

尽管可以手动将代码片段添加到每个 HTML 页面的标头,但建议改为将代码片段添加到主页,这样可以将代码片段插入网站的所有页面中。 对于本文中基于模板的 ASP.NET MVC 应用,需要编辑位于“视图” > “共享”下名为 _Layout.cshtml 的文件 。

若要添加客户端监视,请打开 _Layout.cshtml 文件,然后按照客户端 JavaScript SDK 配置文章中基于代码片段的设置说明进行操作。

疑难解答

当前版本的 Visual Studio 2019 中存在一个已知问题,即对于基于 .NET Framework 的应用而言,将检测密钥存储在用户机密中时,该密钥将被损坏,最终必须将该密钥硬编码到 applicationinsights.config 文件中,才能解决此 bug。 本文旨在通过不使用用户机密来完全避免此问题。

开源 SDK

有关最新的更新和 bug 修复,请参阅发行说明

后续步骤

  • 配置采样以帮助降低遥测流量和数据存储费用。