Log4net不生成日志

Question

我正在尝试使用Log4Net块生成连接错误的日志。 但是日志根本不会生成。 我有ConnectionString获得不存在的连接。 但是该程序根本不会生成任何日志。

我不确定代码，它主要是从教程站点复制垃圾，因此不确定Log4net代码中发生了什么。

Web.config代码-

<?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=169433
  -->
<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" />
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
  </configSections>
  <connectionStrings>
   <add name="MS_Access_DatabaseConnectionString" connectionString="Provider=Microsoft.ACE.OLEDB.12.0; Data Source=C:\Users\saketans\Desktop\ \DOT NET\Microsoft Access Database\MS_Access_Database.mdb;" />
  </connectionStrings>
  <system.web>
    <authentication mode="None" />
    <compilation debug="true" targetFramework="4.6.1" />
    <httpRuntime targetFramework="4.6.1" />
    <pages>
      <namespaces>
        <add namespace="System.Web.Optimization" />
        <add namespace="Microsoft.AspNet.Identity" />
      </namespaces>
      <controls>
        <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt" />
      </controls>
    </pages>
    <membership>
      <providers>
        <!--
          ASP.NET Membership is disabled in this template. Please visit the following link https://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
        <clear />
      </providers>
    </membership>
    <profile>
      <providers>
        <!--
          ASP.NET Membership Profile is disabled in this template. Please visit the following link https://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
        <clear />
      </providers>
    </profile>
    <roleManager>
      <!--
            ASP.NET Membership Role is disabled in this template. Please visit the following link https://go.microsoft.com/fwlink/?LinkId=301889 to learn about the ASP.NET Membership support in this template
        -->
      <providers>
        <clear />
      </providers>
    </roleManager>
    <!--
            If you are deploying to a cloud environment that has multiple web server instances,
            you should change session state mode from "InProc" to "Custom". In addition,
            change the connection string named "DefaultConnection" to connect to an instance
            of SQL Server (including SQL Azure and SQL  Compact) instead of to SQL Server Express.
      -->
    <sessionState mode="InProc" customProvider="DefaultSessionProvider">
      <providers>
        <add name="DefaultSessionProvider" type="System.Web.Providers.DefaultSessionStateProvider, System.Web.Providers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" connectionStringName="DefaultConnection" />
      </providers>
    </sessionState>
  </system.web>

  <log4net>
    <appender name="FileAppender" type="log4net.Appender.FileAppender,log4net">
      <file value= "C:\Logs\DemoWebsiteLog.txt" />
      <!-- the location where the log file would be created -->
      <appendToFile value="true" />
      <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %level %logger - %message%newline" />
      </layout>
      <filter type="log4net.Filter.LevelRangeFilter">
        <levelMin value="INFO" />
        <levelMax value="FATAL" />
      </filter>
    </appender>
    <root>
      <level value="DEBUG" />
      <appender-ref ref="FileAppender" />
    </root>
  </log4net>


  <system.webServer>
    <modules>
      <remove name="FormsAuthentication" />
    </modules>
  </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="WebGrease" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="EntityFramework" publicKeyToken="b77a5c561934e089" />
        <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin" culture="neutral" 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" culture="neutral" 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" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Owin.Security" culture="neutral" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="0.0.0.0-3.0.1.0" newVersion="3.0.1.0" />
      </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=1.0.7.0, 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=1.0.7.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" warningLevel="4" compilerOptions="/langversion:default /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+" />
    </compilers>
  </system.codedom>
</configuration>

类代码如下-

public class MSAccessConnection
{
    //string connectionString = ConfigurationManager.ConnectionStrings["MS_Access_DatabaseConnectionString"].ConnectionString;
    ILog logger = log4net.LogManager.GetLogger("ErrorLog");


    //Login Check Begins
    public int LoginCheck(String name, String password)
    {
        int count = 1000;
        try
        {
            string connectionString = ConfigurationManager.ConnectionStrings["This connection doesn't exist"].ConnectionString;
            OleDbConnection conn = new OleDbConnection(connectionString);
            if (conn.State == ConnectionState.Closed)
            {
                conn.Open();
            }

            String OleDb = "SELECT COUNT(*) FROM [UserCredentials] where Name='" + name + "' and Password=" + password;


            using (OleDbCommand cmd = new OleDbCommand(OleDb, conn))
            {
                using (OleDbDataReader reader = cmd.ExecuteReader())
                {

                    while (reader.Read())
                    {

                        count = (reader.GetInt32(0));
                    }
                }
            }
        }
        catch (Exception ex)
        {

            logger.Error("Error Message: " + ex.Message.ToString(), ex);

        }
        return (count);
    }
    //Login Check Ends
}

Answer 1

我认为这部分缺失：（加载配置）

Global.asax

void Application_Start(object sender, EventArgs e)
{           
    log4net.Config.XmlConfigurator.Configure();
}