Log4Net Webservice 没有创建文件，我做错了什么？

Question

我正在尝试使用 Log4Net，它记录到 ASP.Net 站点中的文件，但我的实现只是不创建文件。我查看了代码一千次，并将其与我找到的一些解决方案进行了比较，但无法找出错误，所以也许你们可以帮助我。 我们开始：

我的 Web.Config 如下所示：

    <?xml version="1.0"?>
<configuration>


  <configSections>
    <sectionGroup name="system.serviceModel">
      <section name="domainServices" type="System.ServiceModel.DomainServices.Hosting.DomainServicesSection, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" allowDefinition="MachineToApplication" requirePermission="false" />
    </sectionGroup>
    <section name="log4net"
     type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
  </configSections>

  <log4net>
    <root>
      <level value="ALL"/>
      <appender name="RollingFileAppender"/>
    </root>
    <appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender, log4net">
      <file value="mylogfile.txt" />
      <appendToFile value="true" />
      <rollingStyle value="Size" />
      <maxSizeRollBackups value="5" />
      <maximumFileSize value="10MB" />
      <staticLogFileName value="true" />
      <layout type="log4net.Layout.PatternLayout, log4net">
        <conversionPattern value="%date [%thread] %level %logger - %message%newline" />
      </layout>
    </appender>
  </log4net>
  <connectionStrings>
    <add name="ApplicationServices"
         connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|\aspnetdb.mdf;User Instance=true"
         providerName="System.Data.SqlClient" />
  </connectionStrings>

  <system.web>
    <httpModules>
      <add name="DomainServiceModule" type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    </httpModules>
    <compilation debug="true" targetFramework="4.0" />
    <globalization culture="auto" uiCulture="auto" />

    <authentication mode="Forms">
      <forms name=".Log4NetDemoApplication_ASPXAUTH" timeout="2880" />
    </authentication>

    <membership>
      <providers>
        <clear/>
        <add name="AspNetSqlMembershipProvider" type="System.Web.Security.SqlMembershipProvider" connectionStringName="ApplicationServices"
             enablePasswordRetrieval="false" enablePasswordReset="true" requiresQuestionAndAnswer="false" requiresUniqueEmail="false"
             maxInvalidPasswordAttempts="5" minRequiredPasswordLength="6" minRequiredNonalphanumericCharacters="0" passwordAttemptWindow="10"
             applicationName="/" />
      </providers>
    </membership>

    <roleManager enabled="true">
      <providers>
        <clear/>
        <add name="AspNetSqlRoleProvider" type="System.Web.Security.SqlRoleProvider" connectionStringName="ApplicationServices" applicationName="/" />
        <add name="AspNetWindowsTokenRoleProvider" type="System.Web.Security.WindowsTokenRoleProvider" applicationName="/" />
      </providers>
    </roleManager>

    <profile>
      <providers>
        <clear/>
        <add name="AspNetSqlProfileProvider" type="System.Web.Profile.SqlProfileProvider" connectionStringName="ApplicationServices" applicationName="/"/>
      </providers>
      <properties>
        <add name="FriendlyName"/>
      </properties>
    </profile>

  </system.web>

  <system.webServer>
    <validation validateIntegratedModeConfiguration="false"/>
    <modules runAllManagedModulesForAllRequests="true">
      <add name="DomainServiceModule" preCondition="managedHandler"
          type="System.ServiceModel.DomainServices.Hosting.DomainServiceHttpModule, System.ServiceModel.DomainServices.Hosting, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    </modules>
  </system.webServer>

  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="false" />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
  </system.serviceModel>
</configuration>

在我的 AssemblyInfo.cs 中看起来像这样：

       #region Assembly mscorlib.dll, v4.0.30319
    // C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.0\mscorlib.dll
    #endregion

    using System;
    using System.Runtime.InteropServices;

    namespace System.Reflection
    {
        // Summary:
        //     Defines a company name custom attribute for an assembly manifest.
        [AttributeUsage(AttributeTargets.Assembly, Inherited = false)]
        [ComVisible(true)]
        public sealed class AssemblyCompanyAttribute : Attribute
        {
            // Summary:
            //     Initializes a new instance of the System.Reflection.AssemblyCompanyAttribute
            //     class.
            //
            // Parameters:
            //   company:
            //     The company name information.
            public AssemblyCompanyAttribute(string company);

            // Summary:
            //     Gets company name information.
            //
            // Returns:
            //     A string containing the company name.
            public string Company { get; }
        }
    }

最后但并非最不重要的是，实际代码如下所示：

        using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.Services;

    namespace Log4NetDemoApplication.Web.Services
    {
        /// <summary>
        /// Summary description for POWSTestLog
        /// </summary>
        [WebService(Namespace = "http://tempuri.org/")]
        [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
        [System.ComponentModel.ToolboxItem(false)]
        // To allow this Web Service to be called from script, using ASP.NET AJAX, uncomment the following line. 
        // [System.Web.Script.Services.ScriptService]
            public class POWSTestLog : System.Web.Services.WebService
        {
            private static readonly log4net.ILog log = log4net.LogManager.GetLogger
        (System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

            [WebMethod]
            public string TestService()
            {
                log4net.ILog logger = log4net.LogManager.GetLogger(typeof(POWSTestLog));


               // log4net.Config.XmlConfigurator.Configure();
                logger.Debug("adsölkaölskd");
                log.Debug("Debug logging");
                log.Info("Info logging");
                log.Warn("Warn logging");
                log.Error("Error logging");
                log.Fatal("Fatal logging");
                return "Hello World";
            }
        }
    }

Can't look at this stuff no more =)
Thanks for all your help!

Answer 1

在请求记录器之前，您应该对其进行配置。试试看：

log4net.Config.XmlConfigurator.ConfigureAndWatch(log4netConfigPath);
ILog log4netLogger = LogManager.GetLogger(typeof(MyType));

编辑：我是怎么做到的

web.config：

Log4net 配置位于/Config/log4net.config.xml

global.asax

private void Application_Start(object sender, EventArgs e)
{
    try
    {
        var log4netConfigPath = Server.MapPath(
                  ConfigurationManager.AppSettings["log4netConfigFilePath"]);
        if (!String.IsNullOrEmpty(log4netConfigPath) && File.Exists(log4netConfigPath))
        {
            FileInfo log4netConfig = new FileInfo(log4netConfigPath);
            if (log4netConfig != null)
            {
                log4net.Config.XmlConfigurator.ConfigureAndWatch(log4netConfig);                            
                ILog log4netLogger = LogManager.GetLogger(typeof(Global));

                // Then register in IoC container so it would be accessible for dependency injection, etc
                // ...
            }
        }
    }
    catch (Exception ex)
    {
       // log error, etc
    }
}

log4net.config.xml，文件追加器

<appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender,log4net">
  <lockingModel type="log4net.Appender.FileAppender+InterProcessLock" />
  <param name="Threshold" value="WARN" />
  <file type="log4net.Util.PatternString">
    <conversionPattern value="logs\lf-%date{yyyy.MM.dd.HH.mm.ss}-[%processid].log" />
  </file>
  <appendToFile value="true"/>
  <rollingStyle value="Composite"/>
  <maxSizeRollBackups value="-1"/>
  <maximumFileSize value="5MB"/>
  <countDirection value="1"/>
  <layout type="log4net.Layout.PatternLayout,log4net">
      <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] - %C{1}-%M - %m%n"/>
  </layout>
</appender>

Answer 2

为什么 Configure() 方法被注释掉了？应该调用它以使用您在 web.config 中的配置。

log4net.Config.XmlConfigurator.Configure();

您的代码应如下所示

        [WebMethod]
        public string TestService()
        {
            log4net.Config.XmlConfigurator.Configure();

            var logger = log4net.LogManager.GetLogger(typeof(POWSTestLog));

            logger.Debug("Test log entry.");                
            return "Hello World";
        }