个人使用的log4net配置

最近在项目中使用log4net，配置起来有点麻烦，在参考了网上的资料后，按自己喜好做了一份配置文件，保存在此，以备复制粘贴。 （- -|）

在Config文件根下增加以下配置：

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

<log4net>
    <root>
      <level value="DEBUG" />
      <appender-ref ref="InfoAppender" />
    </root>
    <appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="Log\\log" />
      <param name="AppendToFile" value="true" />
      <param name="MaxSizeRollBackups" value="10" />
      <param name="MaximumFileSize" value="5MB" />
      <param name="RollingStyle" value="Date" />
      <param name="DatePattern" value="yyyy-MM-dd" />
      <param name="StaticLogFileName" value="false" />
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="****%-5level [%date][Thread ID: %thread]: %message%newline" />
      </layout>
    </appender>
    <filter type="log4net.Filter.LevelRangeFilter">
      <param name="LevelMin" value="INFO" />
      <param name="LevelMax" value="ERROR" />
    </filter>
</log4net>

 

 

如果是Web项目，新建一个Global.asax文件，并在Application_Start方法里增加：log4net.Config.DOMConfigurator.Configure();

如果是WinForm项目，打开AssemblyInfo.cs文件，并增加[assembly: log4net.Config.DOMConfigurator()]

 

一个辅助类：

using System;

using System.Collections.Generic;

using log4net;



public enum LogLevel

{

    Debug, 

    Info,        

    Warning,

    Error,

    Fatal

}



/// <summary>

/// Summary description for LogHelper

/// </summary>

public class LogHelper

{

    private static readonly ILog log = LogManager.GetLogger("loginfo");



    private LogHelper()

    { }



    public static void Write(LogLevel level, string message)

    {

        Write(level, message, null, null);

    }



    public static void Write(LogLevel level, Exception e)

    {

        Write(level, null, null, e);

    }



    public static void Write(LogLevel level, string message, Exception e)

    {

        Write(level, message, null, e);

    }



    public static void Write(LogLevel level, string message, IDictionary<string, string> additionalInfo)

    {

        Write(level, message, additionalInfo);

    }



    public static void Write(LogLevel level, string message, IDictionary<string, string> additionalInfo, Exception e)

    {

        string formattedMessage;

        switch (level)

        {

            case LogLevel.Debug:

                if (log.IsDebugEnabled)

                {

                    formattedMessage = FormatOutputMessage(message, additionalInfo);

                    log.Debug(formattedMessage, e);

                }

                break;

            case LogLevel.Info:

                if (log.IsInfoEnabled)

                {

                    formattedMessage = FormatOutputMessage(message, additionalInfo);

                    log.Info(formattedMessage, e);

                }

                break;

            case LogLevel.Warning:

                if (log.IsWarnEnabled)

                {

                    formattedMessage = FormatOutputMessage(message, additionalInfo);

                    log.Warn(formattedMessage, e);

                }

                break;

            case LogLevel.Error:

                if (log.IsErrorEnabled)

                {

                    formattedMessage = FormatOutputMessage(message, additionalInfo);

                    log.Error(formattedMessage, e);

                }

                break;

            case LogLevel.Fatal:

                if (log.IsFatalEnabled)

                {

                    formattedMessage = FormatOutputMessage(message, additionalInfo);

                    log.Fatal(formattedMessage, e);

                }

                break;

            default:

                throw new ArgumentException(string.Format("type '{0}' not add to Write method", level));

        }

    }



    private static string FormatOutputMessage(string message, IDictionary<string, string> additionalInfo)

    {

        if (additionalInfo == null || additionalInfo.Count == 0)

            return message;



        System.Text.StringBuilder buffer = new System.Text.StringBuilder();

        if (!string.IsNullOrEmpty(message))

            buffer.AppendLine(message);

        foreach (KeyValuePair<string, string> kvp in additionalInfo)

            buffer.AppendLine(kvp.Key + " = " + kvp.Value);



        return buffer.ToString();

    }

}