Log4Net简单使用

     1.配置文件添加

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

<log4net>
<!--<logger name="logerror">
<level value="ERROR" />
<appender-ref ref="ErrorAppender" />
</logger>-->
<logger name="loginfo">
<level value="INFO" />
<appender-ref ref="InfoAppender" />
</logger>
<!--<appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="Log\LogError\" />
<param name="AppendToFile" value="true" />
<param name="MaxSizeRollBackups" value="100" />
<param name="MaxFileSize" value="10240" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="yyyyMMdd&quot;.txt&quot;" />
<param name="RollingStyle" value="Date" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="%n异常时间:%d %n异常级别:%-5p%n异常内容:%m%n" />
</layout>
--><!--&lt; &gt; = <> %n = 回车--><!--
</appender>-->
<appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="LogInfo\" />
<param name="AppendToFile" value="true" />
<param name="MaxFileSize" value="10240" />
<param name="MaxSizeRollBackups" value="100" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="yyyyMMdd&quot;.txt&quot;" />
<param name="RollingStyle" value="Date" />
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="日志时间:%d %n日志级别:%-5p %n日志内容:%m%n%n" />
</layout>
</appender>
</log4net>

2.添加Log4Net引用文件

3.配置[assembly: log4net.Config.XmlConfigurator(ConfigFile = "Web.config", Watch = true)]在 AssemblyInfo 下

4.调用方法写日志

 1 public class LogHelper
 2 {
 3 public static readonly log4net.ILog loginfo = log4net.LogManager.GetLogger("loginfo");
 4 
 5 public static readonly log4net.ILog logerror = log4net.LogManager.GetLogger("logerror");
 6 
 7 //public static void SetConfig()
 8 //{
 9 // log4net.Config.XmlConfigurator.Configure();
10 //}
11 
12 //public static void SetConfig(FileInfo configFile)
13 //{
14 // log4net.Config.XmlConfigurator.Configure(configFile);
15 //}
16 
17 public static void WriteLog(string info)
18 {
19 if (loginfo.IsInfoEnabled)
20 {
21 loginfo.Info(info);
22 }
23 }
24 
25 public static void WriteErrorLog(string info)
26 {
27 if (logerror.IsErrorEnabled)
28 {
29 logerror.Error(info);
30 }
31 }
32 }
原文地址:https://www.cnblogs.com/zhouyu2017/p/9580043.html