log4net中级使用

测试工程连接https://files.cnblogs.com/deadshot123/Log4NetTest.rar
配置日志到数据库可参照http://logging.apache.org/log4net/release/config-examples.html

一、添加一个web的站点上的log.xml
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,

log4net" />
</configSections>
<log4net>
  <root>
   <level value="DEBUG" />
   <appender-ref ref="LogFileAppender" />
   <appender-ref ref="ConsoleAppender" />
   <appender-ref ref="RollingLogFileAppender" />
   <appender-ref ref="MyAppender"/>
  </root>
  <logger name="testApp.Logging">
   <level value="DEBUG" />
  </logger>
  <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="Header" value="[Header]\r\n" />
    <param name="Footer" value="[Footer]\r\n" />
    <param name="ConversionPattern" value="%d [%t] %-5p - %m%n" />
    
   </layout>
   <filter type="log4net.Filter.LevelRangeFilter">
    <param name="LevelMin" value="DEBUG" />
    <param name="LevelMax" value="WARN" />
   </filter>
  </appender>
  <appender name="MyAppender" type="log4net.Appender.RollingFileAppender">
   <param name="File" value="Logs//" />
   <param name="AppendToFile" value="true" />
   <param name="MaxSizeRollBackups" value="100" />
   <param name="StaticLogFileName" value="false" />
   <param name="DatePattern" value="yyyy-MM-dd".txt"" />
   <param name="RollingStyle" value="Date" />
   <layout type="log4net.Layout.PatternLayout">
    <param name="ConversionPattern" value="%d [%t] %-5p - %m%n" />
   </layout>
  </appender>

  <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
   <layout type="log4net.Layout.PatternLayout">
    <param name="ConversionPattern" value="%d [%t] %-5p %c [%x] - %m%n" />
   </layout>
  </appender>
  <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
   <param name="File" value="Log//" />
   
   
   <param name="AppendToFile" value="true" />
   <param name="MaxSizeRollBackups" value="100" />
   <param name="StaticLogFileName" value="false" />
   <param name="DatePattern" value="yyyy-MM-dd".htm"" />
   <param name="RollingStyle" value="Date" />
   <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>
</log4net>
</configuration>

<!--

<appender-ref ref="LogFileAppender" />
<appender-ref ref="ConsoleAppender" />
-->

二、在类库的assembly.config中添加
[assembly:log4net.Config.DOMConfigurator(ConfigFile="log.xml",Watch=true)]

类库中定义一个日志类
using System;
namespace Common
{

/// <summary>
    /// Logger 的摘要说明。日志操作对象
    /// </summary>
public class Logger
{
  /// <summary>
  /// 隐藏的构造函数，防止被实例化
  /// </summary>
  private Logger()
  {
  }
  /// <summary>
  /// 静态的全局日志变量
  /// </summary>
  public static readonly log4net.ILog ilog = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);//这个反射在static下没有意义

  /// <summary>
  /// log4net的debug级别下的日志
  /// </summary>
  /// <param name="msg">被记录对象</param>
  public static void DebugLog(object msg)
  {

//   string caller=mb.Name;
//   for(int i=0;i< st.FrameCount;i++)
//   {
//    System.Diagnostics.StackFrame sf=st.GetFrame(i);
//    System.Diagnostics.Debug.WriteLine(String.Format("File name:{0}, Line:{1}, Column:{2},MethodName:{3}", sf.GetFileName(), sf.GetFileLineNumber(), sf.GetFileColumnNumber(), sf.GetMethod().Name));
//   }

   if (ilog.IsDebugEnabled)//提高效率
   {
    System.Diagnostics.StackTrace st = new System.Diagnostics.StackTrace();
    System.Reflection.MethodBase mb=st.GetFrame(1).GetMethod();
    ilog.Debug("logger name is:"+ilog.Logger.Name+"\r\nCaller class is:"+mb.DeclaringType+"\r\nCaller Method is:"+mb.Name+"\r\nmessage is:"+msg.ToString());
    //ilog.Debug(msg);
    //ilog.Debug(msg);
   }
  }

  /// <summary>
  /// log4net的Error级别下的日志
  /// </summary>
  /// <param name="msg">被记录对象</param>
  public static void ErrorLog(object msg)

   //由于System.Web.UI.TemplateControl.Error()的存在所以加了Log而不写New。
  {

   if (ilog.IsErrorEnabled)
   {
    System.Diagnostics.StackTrace st = new System.Diagnostics.StackTrace();
    System.Reflection.MethodBase mb=st.GetFrame(1).GetMethod();
    ilog.Error("logger name is:"+ilog.Logger.Name+"\r\nCaller class is:"+mb.DeclaringType+"\r\nCaller Method is:"+mb.Name+"\r\nmessage is:"+msg.ToString());

   }
  }
  /// <summary>
  /// log4net的Warn级别下的日志
  /// </summary>
  /// <param name="msg">被记录对象</param>
  public static void WarnLog(object msg)
  {
   if (ilog.IsWarnEnabled)
   {
    System.Diagnostics.StackTrace st = new System.Diagnostics.StackTrace();
    System.Reflection.MethodBase mb=st.GetFrame(1).GetMethod();
    ilog.Warn("logger name is:"+ilog.Logger.Name+"\r\nCaller class is:"+mb.DeclaringType+"\r\nCaller Method is:"+mb.Name+"\r\nmessage is:"+msg.ToString());

   }
  }
  /// <summary>
  /// log4net的Info级别下的日志
  /// </summary>
  /// <param name="msg">被记录对象</param>
  public static void InfoLog(object msg)
  {
   if (ilog.IsInfoEnabled)
   {
    System.Diagnostics.StackTrace st = new System.Diagnostics.StackTrace();
    System.Reflection.MethodBase mb=st.GetFrame(1).GetMethod();
    ilog.Info("logger name is:"+ilog.Logger.Name+"\r\nCaller class is:"+mb.DeclaringType+"\r\nCaller Method is:"+mb.Name+"\r\nmessage is:"+msg.ToString());

   }
  }

  /// <summary>
  /// log4net的Fatal级别下的日志
  /// </summary>
  /// <param name="msg">被记录对象</param>
  public static void FatalLog(object msg)
  {
   if (ilog.IsFatalEnabled)
   {
    System.Diagnostics.StackTrace st = new System.Diagnostics.StackTrace();
    System.Reflection.MethodBase mb=st.GetFrame(1).GetMethod();
    ilog.Fatal("logger name is:"+ilog.Logger.Name+"\r\nCaller class is:"+mb.DeclaringType+"\r\nCaller Method is:"+mb.Name+"\r\nmessage is:"+msg.ToString());

   }
  }

}

}

三、在web程序中使用
web站点添加引用类库Common.dll

Common.Logger.DebugLog(ip+"Called HelloWorld");进行调用

参考：http://www.cnblogs.com/monthkey/archive/2005/04/30/148278.html
http://www.cnblogs.com/basilwang/archive/2006/08/03/467243.html
http://www.cnblogs.com/wangchunlan2004/archive/2006/08/10/473400.html

生成文件的格式有三种
1。按日期
2。按文件大小
3。同时按日期和文件大小

关键节点
<param name="MaxFileSize" value="10240" />

<param name="StaticLogFileName" value="false" />

<param name="DatePattern" value="yyyyMMddHH".htm"" />

<param name="RollingStyle" value="Composite" />

log4net.Layout.PatternLayout中的转换模式(ConversionPattern)

%m(message):输出的日志消息，如ILog.Debug(…)输出的一条消息

%n(new line):换行

%d(datetime):输出当前语句运行的时刻

%r(run time):输出程序从运行到执行到当前语句时消耗的毫秒数

%t(thread id):当前语句所在的线程ID

%p(priority): 日志的当前优先级别，即DEBUG、INFO、WARN…等

%c(class):当前日志对象的名称，例如：

模式字符串为：%-10c -%m%n

代码为：

ILog log=LogManager.GetLogger(“Exam.Log”);

log.Debug(“Hello”);

则输出为下面的形式：

Exam.Log - Hello

%L：输出语句所在的行号

%F：输出语句所在的文件名

%-数字：表示该项的最小长度，如果不够，则用空格填充

例如，转换模式为%r [%t]%-5p %c - %m%n 的 PatternLayout 将生成类似于以下内容的输出：

176 [main] INFO org.foo.Bar - Located nearest gas station.

发表于 2006-12-08 15:44 deadshot123 阅读(571) 评论(0) 编辑收藏举报

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