log4net配置

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1.配置类

public class Log4NetConfig
{
    public static string SqlServer = "ADONetAppender_SqlServer";
    public static string File = "FileAppender";
}

2.注册类

//Author:GaoBing
public class Log
{

    //获取实例
    private static log4net.ILog myLogger = log4net.LogManager.GetLogger(Log4NetConfig.SqlServer);

    //错误级别:Info
    public static void Info(string message)
    {
        InitialLog4Net();
        myLogger.Info(message);
    }
    //错误级别:Debug
    public static void Debug(string message)
    {
        InitialLog4Net();
        myLogger.Debug(message);
    }
    //错误级别:Warn
    public static void Warn(string message)
    {
        InitialLog4Net();
        myLogger.Warn(message);
    }
    //错误级别:Fatal
    public static void Fatal(string message)
    {
        InitialLog4Net();
        myLogger.Fatal(message);
    }
    //错误级别:Error
    public static void Error(string message)
    {
        InitialLog4Net();
        myLogger.Error(message);
    }

    private static void InitialLog4Net()
    {
        //注册log4net日志记录组件
        log4net.Config.XmlConfigurator.Configure(
            new System.IO.FileInfo(AppDomain.CurrentDomain.BaseDirectory + "log4net.config"));
    }

3.log4net.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

  <!-- Author:GaoBingBing-->
  <configSections>
    <section  name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
  </configSections>

  <log4net>

    <!--写入到数据库-->
    <appender name="ADONetAppender_SqlServer" type="log4net.Appender.AdoNetAppender">
      <!--错误队列数据达到10个才持久化到数据库-->
      <bufferSize value="10" />
      <connectionType value="System.Data.SqlClient.SqlConnection" />
      <connectionString value="Server=youserver;UID=sa;PWD=******;DataBase=DB_Logs;Max Pool Size=1000"/>
      <commandText value="INSERT INTO Logs([Date],[Thread],[Level],[Logger],[Message]) VALUES (@log_date, @thread, @log_level, @logger, @message)"/>
      <parameter>
        <parameterName value="@log_date"/>
        <dbType value="DateTime"/>

        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%date{yyyy'-'MM'-'dd HH':'mm':'ss'.'fff}" />
        </layout>
        <!-- <layout type="log4net.Layout.RawTimeStampLayout"/>-->
      </parameter>
      <parameter>
        <parameterName value="@thread"/>
        <dbType value="String"/>
        <size value="255"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%thread"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@log_level"/>
        <dbType value="String"/>
        <size value="50"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%level"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@logger"/>
        <dbType value="String"/>
        <size value="255"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%logger"/>
        </layout>
      </parameter>
      <parameter>
        <parameterName value="@message"/>
        <dbType value="String"/>
        <size value="4000"/>
        <layout type="log4net.Layout.PatternLayout">
          <conversionPattern value="%message"/>
        </layout>
      </parameter>
    </appender>
    <root>
      <level value="ALL"/>
      <appender-ref ref="ADONetAppender_SqlServer"/>

    </root>
    <!-- Specify the level for some specific categories -->
    <logger name="iNotes">
      <!-- <appender-ref ref="B" /> -->
      <level value="ALL"/>
      <appender-ref ref="ADONetAppender_SqlServer"/>

    </logger>

  </log4net>
</configuration>

4.调用

Log.Error("you message");