1.安装
使用nuget下载log4net 当前最新2.0.8
2.配置项目程序集
在Assembly程序集中增加如下
[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", Watch = true)]
3.在log4net.config文件中配置如下 如是站点应放到bin文件夹下
<![CDATA[<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
<log4net>
<!-- 错误日志类-->
<logger name="logerror">
<level value="ALL" />
<appender-ref ref="ErrorAppender" />
</logger>
<!-- 信息日志类 -->
<logger name="loginfo">
<level value="ALL" />
<appender-ref ref="InfoAppender" />
</logger>
<!-- 错误日志附加介质-->
<appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="Log\\Error\\" />
<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".htm"" />
<param name="RollingStyle" value="Date" />
<!--布局-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="<HR COLOR=red>%n【异常时间】：%d [%t] <BR>%n【异常级别】：%-5p <BR>%n【异 常 类】：%c [%x] <BR>%n%m <BR>%n <HR Size=1>" />
</layout>
</appender>
<!-- 信息日志附加介质-->
<appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
<param name="File" value="Log\\Info\\" />
<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".htm"" />
<param name="RollingStyle" value="Date" />
<!-- 信息日志布局-->
<layout type="log4net.Layout.PatternLayout">
<param name="ConversionPattern" value="<HR COLOR=blue>%n日志时间：%d [%t] <BR>%n日志级别：%-5p <BR>%n日 志 类：%c [%x] <BR>%n%m <BR>%n <HR Size=1>" />
</layout>
</appender>
</log4net>
</configuration>
]]>
4.创建帮助类
<![CDATA[namespace Common
{
/// <summary>
/// 日志帮助类
/// </summary>
public class LogHelper
{
//GetLogger表示log4net配置文件中logger标签中name属性，此处要一致 不然无log输出
private static readonly log4net.ILog logInfo = log4net.LogManager.GetLogger("loginfo");
private static readonly log4net.ILog logError = log4net.LogManager.GetLogger("logerror");
/// <summary>
/// 记录Info日志
/// </summary>
/// <param name="msg"></param>
/// <param name="ex"></param>
public static void Info(string msg)
{
if (logInfo.IsInfoEnabled)
{
logInfo.Info(msg);
}
}
/// <summary>
/// 记录Error日志
/// </summary>
/// <param name="errorMsg"></param>
/// <param name="ex"></param>
public static void Error(string info, Exception ex = null)
{
if (!string.IsNullOrEmpty(info) && ex == null)
{
logError.ErrorFormat("【附加信息】 : {0}<br>", new object[] { info });
}
else if (!string.IsNullOrEmpty(info) && ex != null)
{
string errorMsg = BeautyErrorMsg(ex);
logError.ErrorFormat("【附加信息】 : {0}<br>{1}", new object[] { info, errorMsg });
}
else if (string.IsNullOrEmpty(info) && ex != null)
{
string errorMsg = BeautyErrorMsg(ex);
logError.Error(errorMsg);
}
}
/// <summary>
/// 美化错误信息
/// </summary>
/// <param name="ex">异常</param>
/// <returns>错误信息</returns>
private static string BeautyErrorMsg(Exception ex)
{
string errorMsg = string.Format("【异常类型】：{0} <br>【异常信息】：{1} <br>【堆栈调用】：{2}", new object[] { ex.GetType().Name, ex.Message, ex.StackTrace });
errorMsg = errorMsg.Replace("\r\n", "<br>");
errorMsg = errorMsg.Replace("位置", "<strong style=\"color:red\">位置</strong>");
return errorMsg;
}
}
}]]>