C# 整合log4net

1 下载并导入log4net.dll

下载地址：
http://logging.apache.org/log4net/download_log4net.cgi

下载内容：log4net-2.0.8-bin-newkey.zip

解压后找到 log4net.dll，并引入到项目中

2 配置app.config

"1.0" encoding="utf-8" ?>

  
    
"log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
  
  
    
    "RollingFileAppender_DateTime" type="log4net.Appender.RollingFileAppender">
      
      "File" value="..\log\Test.log"/>
      
      "AppendToFile" value="true"/>
      
      "RollingStyle" value="Size"/>
      "DatePattern" value="yyyy-MM-dd-HH"/>
      "StaticLogFileName" value="true"/>
      "MaxSizeRollBackups" value="30"/>
      "MaximumFileSize" value="5MB"/>
      "CountDirection" value="1"/>
      "log4net.Layout.PatternLayout">
        "ConversionPattern" value="%d [%t] %-5p %c - %m%n"/>
      
    
    
    
      "INFO"/>
      "RollingFileAppender_DateTime"/>
    
  

3 配置assembly

AssemblyInfo.cs 最后追加：
[assembly: log4net.Config.DOMConfigurator(Watch = true)]

4 .NET Framework4.X

项目右键属性　⇒　应用程序　⇒　目标框架　⇒　.NET Framework4.X
※　与所使用的log4net.dll 版本一致

5 测试

using System;
using System.Windows.Forms;

namespace AddLogTest
{
    public partial class Form1 : Form
    {
        private static readonly log4net.ILog logger = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            logger.Info("INFO___________________________");

            logger.Error("Error++++++++++++++++++++++++++");

            logger.Debug("Debug==============================");
        }
    }
}

输出：

logger.Info(“INFO___________________________”);

logger.Error(“Error++++++++++++++++++++++++++”);

（由于配置文件只设置了【INFO】模式，Debug内容没被输出）