Log4net在ASP.NET MVC应用程序中不起作用
Web.config文件
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" requirePermission="false" />
</configSections>
<log4net configSource="configlog4net.config" />
<appSettings>
<add key="webpages:Version" value="3.0.0.0" />
<add key="webpages:Enabled" value="false" />
<add key="PreserveLoginUrl" value="true" />
<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>
<connectionStrings>
<add name="catalogiDbName" connectionString="Data Source=dbserver;Initial Catalog=Catalogi;User ID=sa;Password=pyrAmid09" />
</connectionStrings>
<system.web>
<compilation debug="true" targetFramework="4.5.1" />
<httpRuntime targetFramework="4.5.1" />
<pages>
<namespaces>
<add namespace="System.Web.Helpers" />
<add namespace="System.Web.Mvc" />
<add namespace="System.Web.Mvc.Ajax" />
<add namespace="System.Web.Mvc.Html" />
<add namespace="System.Web.Routing" />
<add namespace="System.Web.WebPages" />
</namespaces>
</pages>
</system.web>
<system.webServer>
<validation validateIntegratedModeConfiguration="false" />
<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="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.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.Optimization" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
</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="WebGrease" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>
配置 log4net.config
<?xml version="1.0"?>
<log4net>
<root>
<priority value="Debug"/>
<appender-ref ref="AsyncLog4NetAppender" />
</root>
<appender name="rollingFile" type="log4net.Appender.RollingFileAppender">
<file type="log4net.Util.PatternString" value="App_DataLogsCatalogiTraceLog.%property{log4net:HostName}.txt" />
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
<appendToFile value="true" />
<rollingStyle value="Date" />
<maximumFileSize value="5MB" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value=" %date [P%property{processId}/D%property{appDomainId}/T%thread] %-5level %logger - %message%newline" />
</layout>
<encoding value="utf-8" />
</appender>
<appender name="AsyncLog4NetAppender" type="Log4Net.Async.ParallelForwardingAppender">
<appender-ref ref="rollingFile" />
</appender>
</log4net>
我的web项目的AssemblyInfo.cs
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("Catalogi.Web.UI")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("Catalogi.Web.UI")]
[assembly: AssemblyCopyright("Copyright © 2017")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// Setting ComVisible to false makes the types in this assembly not visible
// to COM components. If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]
// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("df78b702-d445-4a44-8d80-2888056184b2")]
// Version information for an assembly consists of the following four values:
//
// Major Version
// Minor Version
// Build Number
// Revision
//
// You can specify all the values or you can default the Revision and Build Numbers
// by using the '*' as shown below:
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]
// Log4net
[assembly: log4net.Config.XmlConfigurator(Watch = true)]
我试图解决这个问题时尝试了很多东西：
添加路径到配置文件的程序集中
[程序集：log4net.Config.XmlConfigurator（ConfigFile =“Config log4net.config”，Watch = true）]
将副本设置为log4net.config文件的输出
在web配置中添加<add key="log4net.Internal.Debug" value="true"/>以查看调试
log4net：log4net程序集[log4net，Version = 2.0.8.0，Culture = neutral，PublicKeyToken = 669e0ddf0bb1aa2a]。 从[C： Users MichaelV.PROSEC AppData Local Temp Temporary ASP.NET Files root cd31ee63 e12ae4ed assembly dl3 4cb568d0 dbc1e838_1decd201 log4net.dll]加载。 （Microsoft Windows NT 6.3.9600.0上的.NET Runtime [4.0.30319.42000]）
log4net：defaultRepositoryType [log4net.Repository.Hierarchy.Hierarchy]
log4net：为程序集创建存储库[Catalogi.Core，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null]
log4net：Assembly [Catalogi.Core，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null]从[C： Users MichaelV.PROSEC AppData Local Temp Temporary ASP.NET Files root cd31ee63 e12ae4ed 组件 DL3 c63084c3 0184b750_0cf4d201 Catalogi.Core.dll]
log4net：程序集[Catalogi.Core，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null]没有指定RepositoryAttribute。
使用存储库[log4net-default-repository]和存储库类型[log4net.Repository.Hierarchy.Hierarchy]的log4net：Assembly [Catalogi.Core，Version = 1.0.0.0，Culture = neutral，PublicKeyToken = null]
log4net：使用类型[log4net.Repository.Hierarchy.Hierarchy]创建存储库[log4net-default-repository]
在这个问题上挣扎后，我找到了解决办法。
首先，我必须添加一个新的appsettings键来查找分离的配置文件：
<add key="log4net.Config" value="configlog4net.config"/>
之后，我开始在输出控制台中看到更多信息。 我必须先为我的Log4Net.Async.ParallelForwardingAppender添加软件包log4net.async，之后我必须将以下内容添加到Web配置中，因为它无法加载先前版本的log4net：
<dependentAssembly>
<assemblyIdentity name="log4net" publicKeyToken="669e0ddf0bb1aa2a" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-2.0.8.0" newVersion="2.0.8.0"/>
</dependentAssembly>
现在一切正常。
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