c# log4net

1.App.config

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
  </configSections>
  <log4net>
    <!--定义输出到文件中-->
    <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
      <!--定义文件存放位置-->
      <file value="Log\"/>
      <appendToFile value="true"/>
      <rollingStyle value="Date"/>
      <datePattern value="yyyyMM'.log'"/>
      <!--名称是否可以更改 为false为可以更改-->
      <staticLogFileName value="false"/>
      <layout type="log4net.Layout.PatternLayout">
        <!--每条日志末尾的文字说明-->
        <!--输出格式-->
        <!--样例：{"time":"2008-03-26 13:42:32,111", "info":"info"-->
        <conversionPattern value="{&quot;time&quot;:&quot;%date&quot;,&quot;info&quot;:%message%} %n"/>
      </layout>
    </appender>
    <root>
      <level value="INFO"/>
      <!--文件形式记录日志-->
      <appender-ref ref="RollingLogFileAppender"/>
    </root>
  </log4net>
  
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
  </startup>
</configuration>

2.LogUitls

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

[assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace Test
{
    public class LogUitls
    {
        /// <summary>
        /// 输出日志到Log4Net
        /// </summary>
        /// <param name="t"></param>
        /// <param name="ex"></param>
        #region static void WriteLog(Type t, Exception ex)

        public static void WriteLog(Type t, Exception ex)
        {
            log4net.ILog log = log4net.LogManager.GetLogger(t);
            log.Error("Error", ex);
        }

        #endregion

        /// <summary>
        /// 输出日志到Log4Net
        /// </summary>
        /// <param name="t"></param>
        /// <param name="msg"></param>
        #region static void WriteLog(Type t, string msg)

        public static void WriteLog(Type t, string msg)
        {
            log4net.ILog log = log4net.LogManager.GetLogger(t);
            log.Info(msg);
        }#endregion
    }
}

3.调用

LogUitls.WriteLog(typeof(Form1), "test");