Log4net配置

一  AssemblyInfo.cs文件



[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]

二  创建log4net.config文件



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

<configuration>



  <configSections>

    <section  name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>

  </configSections>



  <log4net>



    <!--写入到数据库-->

    <appender name="ADONetAppender_DbServer" type="log4net.Appender.AdoNetAppender">

      <!--错误队列数据达到5个才持久化到数据库-->

      <bufferSize value="1" />

      <param name="ConnectionType" value="MySql.Data.MySqlClient.MySqlConnection, MySql.Data"/>

      <param name="ConnectionString" value="Data Source=ip ;initial catalog=数据库;user id=**;password=**;pooling=true;max pool size=100"/>

      <commandText value="INSERT INTO log(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_DbServer"/>



    </root>

    <!-- Specify the level for some specific categories -->

    <logger name="iNotes">

      <!-- <appender-ref ref="B" /> -->

      <level value="ALL"/>

      <appender-ref ref="ADONetAppender_DbServer"/>



    </logger>





  </log4net>

</configuration>

三  创建Log.cs 文件



    public class Log

    {

        //获取实例

        private static log4net.ILog myLogger = log4net.LogManager.GetLogger(Log4NetConfig.DBServer);



        static Log()

        {

        }



        //错误级别:Info

        public static void Info(Exception ex, string message)

        {

            myLogger.Info(AppendMessage(ex, message));

        }

        //错误级别:Debug

        public static void Debug(Exception ex, string message)

        {

            myLogger.Debug(AppendMessage(ex, message));

        }

        //错误级别:Warn

        public static void Warn(Exception ex, string message)

        {

            myLogger.Warn(AppendMessage(ex, message));

        }

        //错误级别:Fatal

        public static void Fatal(Exception ex, string message)

        {

            myLogger.Fatal(AppendMessage(ex, message));

        }

        //错误级别:Error

        public static void Error(Exception ex, string message)

        {

            myLogger.Error(AppendMessage(ex, message));

        }

        //拼接错误信息

        private static string AppendMessage(Exception ex, string message)

        {



            return "自定义错误信息：" + message + "。系统错误信息:" + ex.Message + ",发生时间：" +

                   DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");

        }

    }

四 创建Log4NetConfig.cs文件



public class Log4NetConfig

    {

        public static string DBServer = "ADONetAppender_DbServer";

        public static string File = "FileAppender";

    }

五，修改Global.asax文件



添加 LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);

六，根据log4net.config里的数据来创建数据库



七，必须添加的类库  log4net.dll，MySql.Data.dll，并且引用



八，必须把 log4net.dll，MySql.Data.dll复制一份放到bin文件夹下，否则不会写日志

九 ，本文来源于：http://www.cnblogs.com/gaobing/p/3809526.html