C#之MVC中使用Log4Net

1 下載log4net.dllweb

2 在web.config 中的 <configSections>節點內增長以下代碼app

<!--log4net_s-->
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
<!--log4net_e-->

3 新增Config文件夾並增長log4net.config文件具體配置能夠自定義示例內容以下：spa

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <configSections>
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
  </configSections>
  <log4net debug="false">
    <!--錯誤日誌配置-->
    <appender name="ErrorAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="D:\\MyWebLog\\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%d-------------------%n%m%n" />
      </layout>
    </appender>

    <!--信息日誌配置-->
    <appender name="InfoAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="D:\\MyWebLog\\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="%n%d-------------------%n%m%n" />
      </layout>
    </appender>

    <!--Debug日誌配置-->
    <appender name="DebugAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="D:\\MyWebLog\\LogDebug\\" />
      <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="%d,%m%n" />
      </layout>
    </appender>

    <!--嚴重錯誤日誌配置-->
    <appender name="FataAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="D:\\MyWebLog\\LogFata\\" />
      <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="%d,%m%n" />
      </layout>
    </appender>

    <!--警告日誌配置-->
    <appender name="WarnAppender" type="log4net.Appender.RollingFileAppender">
      <param name="File" value="D:\\MyWebLog\\LogWarn\\" />
      <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="%d,%m%n" />
      </layout>
    </appender>
    <!--log4net.LogManager.GetLogger("logerror")用這個來選擇這種類型-->
    <logger name="logerror">
      <level value="ERROR" />
      <appender-ref ref="ErrorAppender" />
    </logger>
    <logger name="loginfo">
      <level value="INFO" />
      <appender-ref ref="InfoAppender" />
    </logger>
    <logger name="logdebug">
      <level value="DEBUG" />
      <appender-ref ref="DebugAppender" />
    </logger>
    <logger name="logwarn">
      <level value="WARN" />
      <appender-ref ref="WarnAppender" />
    </logger>
    <logger name="logfata">
      <level value="FATA" />
      <appender-ref ref="FataAppender" />
    </logger>

  </log4net>
</configuration>

4 添加一個Log4NetHelper類庫文件內容以下：debug

public static class Log4NetHelper { private static string _debugAppender = "logdebug"; private static string _errorAppender = "logerror"; private static string _fatalAppender = "logfata"; private static string _infoAppender = "loginfo"; private static string _warnAppender = "logwarn"; #region 屬性設置 /// <summary>
        /// 設置DebugAppender的值，默認爲：logdebug
        /// </summary>
        public static string DebugAppender { set { _debugAppender = value; } } /// <summary>
        /// 設置ErrorAppender的值，默認爲：logerror
        /// </summary>
        public static string ErrorAppender { set { _errorAppender = value; } } /// <summary>
        /// 設置FatalAppender的值，默認爲：logfata
        /// </summary>
        public static string FatalAppender { set { _fatalAppender = value; } } /// <summary>
        /// 設置InfoAppender的值，默認爲：loginfo
        /// </summary>
        public static string InfoAppender { set { _infoAppender = value; } } /// <summary>
        /// 設置WarnAppender的值，默認爲：logwarn
        /// </summary>
        public static string WarnAppender { set { _warnAppender = value; } } #endregion /// <summary>
        /// 加載log4net的日誌配置文件
        /// </summary>
        /// <param name="configFilePath">日誌配置文件的完整路徑</param>
        public static void LoadConfig(string configFilePath) { if (string.IsNullOrEmpty(configFilePath) || !File.Exists(configFilePath)) { throw new ArgumentNullException("日誌配置文件不存在"); } XmlConfigurator.ConfigureAndWatch(new FileInfo(configFilePath)); } /// <summary>
        /// 根據指定的日誌適配器名稱獲取日誌對象
        /// </summary>
        /// <param name="appenderName">日誌適配器名稱</param>
        /// <returns>日誌對象</returns>
        private static ILog GetLogByName(string appenderName) { if (string.IsNullOrEmpty(appenderName)) { throw new ArgumentNullException("日誌配置名稱不能爲空"); } return LogManager.GetLogger(appenderName); } /// <summary>
        /// 記錄調試日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        public static void Debug(string message) { ILog logByName = GetLogByName(_debugAppender); if (logByName.IsDebugEnabled) { logByName.Debug(message); } } /// <summary>
        /// 記錄調試日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        /// <param name="exception">爲日誌附加異常信息，能夠在配置中獲取更準確的信息，如無異常信息，則能夠爲null</param>
        public static void Debug(string message, Exception exception) { ILog logByName = GetLogByName(_debugAppender); if (logByName.IsDebugEnabled) { logByName.Debug(message, exception); } } /// <summary>
        /// 記錄錯誤日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        public static void Error(string message) { ILog logByName = GetLogByName(_errorAppender); if (logByName.IsErrorEnabled) { logByName.Error(message); } } /// <summary>
        /// 記錄錯誤日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        /// <param name="exception">爲日誌附加異常信息，能夠在配置中獲取更準確的信息，如無異常信息，則能夠爲null</param>
        public static void Error(string message, Exception exception) { ILog logByName = GetLogByName(_errorAppender); if (logByName.IsErrorEnabled) { logByName.Error(message, exception); } } /// <summary>
        /// 記錄嚴重錯誤日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        public static void Fatal(string message) { ILog logByName = GetLogByName(_fatalAppender); if (logByName.IsFatalEnabled) { logByName.Fatal(message); } } /// <summary>
        /// 記錄嚴重錯誤日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        /// <param name="exception">爲日誌附加異常信息，能夠在配置中獲取更準確的信息，如無異常信息，則能夠爲null</param>
        public static void Fatal(string message, Exception exception) { ILog logByName = GetLogByName(_fatalAppender); if (logByName.IsFatalEnabled) { logByName.Fatal(message, exception); } } /// <summary>
        /// 記錄信息日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        public static void Info(string message) { ILog logByName = GetLogByName(_infoAppender); if (logByName.IsInfoEnabled) { logByName.Info(message); } } /// <summary>
        /// 記錄信息日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        /// <param name="exception">爲日誌附加異常信息，能夠在配置中獲取更準確的信息，如無異常信息，則能夠爲null</param>
        public static void Info(string message, Exception exception) { ILog logByName = GetLogByName(_infoAppender); if (logByName.IsInfoEnabled) { logByName.Info(message, exception); } } /// <summary>
        /// 記錄警告日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        public static void Warn(string message) { ILog logByName = GetLogByName(_warnAppender); if (logByName.IsWarnEnabled) { logByName.Warn(message); } } /// <summary>
        /// 記錄警告日誌
        /// </summary>
        /// <param name="message">日誌信息，若是因異常記錄日誌，則message能夠爲null</param>
        /// <param name="exception">爲日誌附加異常信息，能夠在配置中獲取更準確的信息，如無異常信息，則能夠爲null</param>
        public static void Warn(string message, Exception exception) { ILog logByName = GetLogByName(_warnAppender); if (logByName.IsWarnEnabled) { logByName.Warn(message, exception); } } }

5 在global.asax.cs 的Application_Start方法增長以下代碼調試

//讀取log4net的配置文件日誌

Log4NetHelper.LoadConfig(AppDomain.CurrentDomain.BaseDirectory + "Config\\Log4net.config");

6 控制器action方法調用示例code

Log4NetHelper.Error("abc"); Log4NetHelper.Info("abc"); Log4NetHelper.Fatal("abc"); Log4NetHelper.Debug("abc"); Log4NetHelper.Warn("abc");