log4net配置：

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

<?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_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="Server= 127.0.0.1;UID=root;PWD=root;DataBase=logs;Max Pool Size=1000"/>      <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>

using System;using System.Collections.Generic;using System.Linq;using System.Web;//Author:GaoBingBingpublic class Log{    //获取实例    private static log4net.ILog myLogger = log4net.LogManager.GetLogger(Log4NetConfig.DBServer);    //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");    }}

//Author:GaoBingBingpublic class Log4NetConfig{    public static string DBServer = "ADONetAppender_DbServer";    public static string File = "FileAppender";}