log4net在winforn中的使用
1、新建一个面目2、添加引用（添加log4net.dll的引用）
3、新建一个App.config文件
<?xml version="1.0" encoding="utf-8" ?><configuration><configSections> <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net-net-1.2.10.0" /></configSections><log4net> <root> <level value="ALL" /> <appender-ref ref="LogFileAppender" /> </root> <appender name="LogFileAppender" type="log4net.Appender.FileAppender" > <param name="File" value="log-file.txt" /> <param name="AppendToFile" value="true" /> <layout type="log4net.Layout.PatternLayout"> <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] &lt;%X{auth}&gt;%n - %m%n" /> </layout> </appender></log4net></configuration>4、第一种方法：在Properties目录下 的AssemblyInfo.cs文件添加一句代码（在命名空间下添加）
第二种方法：在每个要记录日志的form中添加（在命名空间下添加）
5、应用
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Text;using System.Windows.Forms;using log4net;//namespace Log{ public partial class Form1 : Form { private static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo("log4net.config")); //log4net.ILog log = log4net.LogManager.GetLogger(typeof(Form1)); //log.Debug("hello"); log.Warn("你好！"); } }}
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