asp.net web api elmah不會將錯誤記錄到xml文件

Question

我想使用Elmah來記錄我的web api應用程序的錯誤日誌。我喜歡它將錯誤記錄到web項目中的我的App_Data文件夾。但目前這不起作用。我最初安裝了elmah。並可以通過訪問我的本地主機：PORT/elmah.axd來查看錯誤日誌。但是沒有任何東西被記錄到App_Data。然後我在網上尋求幫助，並安裝了Elmah.Contrib.WebApi。但這仍然沒有幫助。以下是我的配置文件。

'的web.config

<?xml version="1.0" encoding="utf-8"?> 
 
<configuration> 
 
    <configSections> 
 
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --> 
 
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /> 
 
    </configSections> 
 
    <connectionStrings> 
 
    <!-->add name="DefaultConnection" connectionString="Data Source=(LocalDb)\MSSQLLocalDB;AttachDbFilename=|DataDirectory|\aspnet-CashFlowManagement.Web-20161209090731.mdf;Initial Catalog=aspnet-CashFlowManagement.Web-20161209090731;Integrated Security=True" 
 
     providerName="System.Data.SqlClient" /--> 
 
    <add name="CashFlowDb" connectionString="data source=LENOVO-PC;initial catalog=CashFlow;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework" providerName="System.Data.SqlClient" /> 
 
    </connectionStrings> 
 
    <appSettings></appSettings> 
 
    <system.web> 
 
    <authentication mode="None" /> 
 
    <compilation debug="true" targetFramework="4.5.2" /> 
 
    <httpRuntime targetFramework="4.5.2" /> 
 
    </system.web> 
 
    <system.webServer> 
 
    <modules> 
 
     <remove name="FormsAuthentication" /> 
 
    </modules> 
 
    <handlers> 
 
     <remove name="ExtensionlessUrlHandler-Integrated-4.0" /> 
 
     <remove name="OPTIONSVerbHandler" /> 
 
     <remove name="TRACEVerbHandler" /> 
 
     <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" /> 
 
    </handlers> 
 
    </system.webServer> 
 
    <runtime> 
 
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> 
 
     <dependentAssembly> 
 
     <assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" /> 
 
     </dependentAssembly> 
 
     <dependentAssembly> 
 
     <assemblyIdentity name="Microsoft.Owin.Security.OAuth" publicKeyToken="31bf3856ad364e35" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" /> 
 
     </dependentAssembly> 
 
     <dependentAssembly> 
 
     <assemblyIdentity name="Microsoft.Owin.Security.Cookies" publicKeyToken="31bf3856ad364e35" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" /> 
 
     </dependentAssembly> 
 
     <dependentAssembly> 
 
     <assemblyIdentity name="Microsoft.Owin" publicKeyToken="31bf3856ad364e35" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" /> 
 
     </dependentAssembly> 
 
     <dependentAssembly> 
 
     <assemblyIdentity name="Newtonsoft.Json" culture="neutral" publicKeyToken="30ad4fe6b2a6aeed" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" /> 
 
     </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="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" /> 
 
     </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.Mvc" publicKeyToken="31bf3856ad364e35" /> 
 
     <bindingRedirect oldVersion="1.0.0.0-5.2.3.0" newVersion="5.2.3.0" /> 
 
     </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.Http" publicKeyToken="31bf3856ad364e35" culture="neutral" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" /> 
 
     </dependentAssembly> 
 
     <dependentAssembly> 
 
     <assemblyIdentity name="System.Net.Http.Formatting" publicKeyToken="31bf3856ad364e35" culture="neutral" /> 
 
     <bindingRedirect oldVersion="0.0.0.0-5.2.3.0" newVersion="5.2.3.0" /> 
 
     </dependentAssembly> 
 
    </assemblyBinding> 
 
    </runtime> 
 
    <entityFramework> 
 
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework"> 
 
     <parameters> 
 
     <parameter value="mssqllocaldb" /> 
 
     </parameters> 
 
    </defaultConnectionFactory> 
 
    <providers> 
 
     <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" /> 
 
    </providers> 
 
    </entityFramework> 
 
    <system.codedom> 
 
    <compilers> 
 
     <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:6 /nowarn:1659;1699;1701" /> 
 
     <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" /> 
 
    </compilers> 
 
    </system.codedom> 
 
</configuration>

`

Answer 1

Web.config文件不包含任何ELMAH配置。看看這個ELMAH Tutorial如何開始。缺少配置的問題可能是您的環境不允許PowerShell作爲安裝ELMAH NuGet軟件包的一部分運行。如果您運行Get-ExecutionPolicy，它會返回什麼？

更新：按照指示在Configure elmah.io manually和配置XML文件錯誤日誌：

<elmah> 
    <errorLog type="Elmah.XmlFileErrorLog, Elmah" logPath="~/App_Data" /> 
</elmah> 

作爲替代方案，您可以在安裝之前設置在PowerShell中的執行策略ELMAH：

Set-ExecutionPolicy RemoteSigned