Log4Net組件的應用詳解

本文轉載自查看原文 2012-02-21 16:21 15101

第一步：

添加並應用Log4net.dll。然后在Web.config文件中添加下面的配置局

第二步：

新建Log4Net.config的配置文件，並在其中添加下面的配置信息：

<?xml version= " 1.0 " encoding= " UTF-8 "?>
<log4net debug= " false ">

  
  <appender name= " LogFileAppenderByDate " type= " log4net.Appender.RollingFileAppender " >

    
    <param name= " AppendToFile " value= " true " />
    
    <param name= " LockingModel " value= " log4net.Appender.FileAppender.MinimalLock " />
    <param name= " StaticLogFileName " value= " true " />
    
    <param name= " File " value= " d:\Log\\ " />
    <param name= " DatePattern " value= " yyyy-MM-dd.LOG " />
    <param name= " StaticLogFileName " value= " false " />
    <param name= " RollingStyle " value= " Date " />
    <layout type= " log4net.Layout.PatternLayout ">
      <param name= " ConversionPattern " value= " 時間:%d %n級別:%level %n類名:%c%n文件:%F 第%L行%n日志內容:%m%n-----------------------------------------%n%n " />
    </layout>
  </appender>

  
  <appender name= " LogFileAppenderBySize " type= " log4net.Appender.RollingFileAppender " >
    
    <param name= " AppendToFile " value= " true " />
    
    <param name= " LockingModel " value= " log4net.Appender.FileAppender.MinimalLock " />

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

    
    <param name= " RollingStyle " value= " Size " />
    <param name= " File " value= " log.txt " />
    
    <param name= " MaximumFileSize " value= " 200KB "/>
    
    <param name= " MaxSizeRollBackups " value= " 2 " />

    <param name= " StaticLogFileName " value= " false " />
    <layout type= " log4net.Layout.PatternLayout ">
      <param name= " ConversionPattern " value= " 發生時間:%d %n事件級別:%level %n相關類名:%c%n程序文件:%F 第%L行%n日志內容:%m%n-----------------------------------------%n%n " />
    </layout>
  </appender>

  
  <appender name= " AdoNetAppender " type= " log4net.Appender.AdoNetAppender ">
    <bufferSize value= " 1 " />
    
    <connectionType value= " System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089 " />
    <connectionString value= " Data Source=.\SQLEXPRESS;Initial Catalog=CVDS;User ID=sa;Password=sasa " />
    <commandText value= " INSERT INTO Log([Date],[Thread],[Level],[Logger],[Message],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @message, @exception) " />
    <parameter>
      <parameterName value= " @log_date " />
      <dbType value= " DateTime " />
      <layout type= " log4net.Layout.RawTimeStampLayout " />
    </parameter>
    <parameter>
      <parameterName value= " @thread " />
      <dbType value= " String " />
      <size value= " 255 " />
      <layout type= " log4net.Layout.PatternLayout ">
        <conversionPattern value= " %thread " />
      </layout>
    </parameter>
    <parameter>
      <parameterName value= " @log_level " />
      <dbType value= " String " />
      <size value= " 50 " />
      <layout type= " log4net.Layout.PatternLayout ">
        <conversionPattern value= " %level " />
      </layout>
    </parameter>
    <parameter>
      <parameterName value= " @logger " />
      <dbType value= " String " />
      <size value= " 255 " />
      <layout type= " log4net.Layout.PatternLayout ">
        <conversionPattern value= " %logger " />
      </layout>
    </parameter>
    <parameter>
      <parameterName value= " @message " />
      <dbType value= " String " />
      <size value= " 4000 " />
      <layout type= " log4net.Layout.PatternLayout ">
        <conversionPattern value= " %message " />
      </layout>
    </parameter>
    <parameter>
      <parameterName value= " @exception " />
      <dbType value= " String " />
      <size value= " 2000 " />
      <layout type= " log4net.Layout.ExceptionLayout " />
    </parameter>
  </appender>

  <root>
    <level value= " INFO " />
    
    <appender- ref ref= " LogFileAppenderByDate " />
    
    
    
    
  </root>

</log4net>

第三步：

在Global.asax文件中的Application_Start事件中添加如下代碼：

protected void Application_Start( object sender, EventArgs e)
  {
        // Code that runs on application startup
      log4net.Config.XmlConfigurator.ConfigureAndWatch( new FileInfo(Server.MapPath( " Log4Net.config ")));
  }

第四步：調用LOG4net 寫日志

          protected void Button2_Click( object sender, EventArgs e)
        {
                     ILog logs = LogManager.GetLogger( typeof(TEST));

           logs.Fatal( " Excption:這里就是要提示的LOG信息 ");
        }

也可以通過寫一個LogHelper.cs類進行封裝：

using System;
using System.Collections.Generic;
using System.Web;
using log4net;

namespace SBIT.Web.Class
{
     /// <summary>
     /// 日志輔助類
     /// </summary>
     public class LogHelper
    {
         private static ILog log;
         private static LogHelper logHelper = null;
         /// <summary>
         /// 初始化
         /// </summary>
         /// <returns></returns>
         public static ILog GetInstance()
        {
            logHelper = new LogHelper( null);

             return log;
        }
         /// <summary>
         /// 初始化
         /// </summary>
         /// <param name="configPath"></param>
         /// <returns></returns>
         public static ILog GetInstance( string configPath)
        {
            logHelper = new LogHelper(configPath);

             return log;
        }
         /// <summary>
         /// 構造函數
         /// </summary>
         /// <param name="configPath"></param>
         private LogHelper( string configPath)
        {
             if (! string.IsNullOrEmpty(configPath))
            {
                log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
                log4net.Config.XmlConfigurator.Configure( new System.IO.FileInfo(configPath));
            }
             else
            {
                log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
            }
        }

    }
}

通過封裝類寫日志的方法如下：

private static readonly ILog logs = LogHelper.GetInstance(); // LogManager.GetLogger(typeof(TEST));
         protected void Button2_Click( object sender, EventArgs e)
        {
                logs.Fatal( " Excption:這里就是要提示的LOG信息 ");
        }

代碼下載如下：

/Files/huanghai223/ReportProject_web.rar

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