log4net封装类

封装说明:

　　1.使用静态方法调用即可写入日志。

　　2.在日志信息写入之前，定义委托处理日志信息，便于记录日志信息之前，显示给用户。

　　3.添加代码配置Log4net，避免应用程序总是携带配置文件。如果需要使用配置文件，即可在AssemblyInfo.cs添加

    [assembly: log4net.Config.XmlConfigurator(ConfigFile = "log.xml", Watch = false)]

展开代码


using System;
using System.Data;
using System.Text;
using log4net;
using log4net.Appender;
using log4net.Config;
using log4net.Layout;
using log4net.Repository.Hierarchy;

namespace DanaZhangCMS.Common
{
    public class Log4NetHelp
    {
        #region 变量定义
        //定义信息的二次处理
        public static event Action<string> OutputMessage;
        //ILog对象
        private static readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        //记录异常日志数据库连接字符串
        private const string _ConnectionString = @"data source=your server;initial catalog=your db;integrated security=false;persist security info=True;User ID=sa;Password=1111";
        //信息模板
        private const string _ConversionPattern = "%n【记录时间】%date%n【描述】%message%n";
        #endregion

        #region 定义信息二次处理方式
        private static void HandMessage(object Msg)
        {
            if (OutputMessage != null)
            {
                OutputMessage(Msg.ToString());
            }
        }
        private static void HandMessage(object Msg, Exception ex)
        {
            if (OutputMessage != null)
            {
                OutputMessage(string.Format("{0}:{1}", Msg.ToString(), ex.ToString()));
            }
        }
        private static void HandMessage(string format, params object[] args)
        {
            if (OutputMessage != null)
            {
                OutputMessage(string.Format(format, args));
            }
        }
        #endregion

        #region 封装Log4net
        public static void Debug(object message)
        {
            HandMessage(message);
            if (log.IsDebugEnabled)
            {
                log.Debug(message);
            }
        }
        public static void Debug(object message, Exception ex)
        {
            HandMessage(message, ex);
            if (log.IsDebugEnabled)
            {
                log.Debug(message, ex);
            }
        }
        public static void DebugFormat(string format, params object[] args)
        {
            HandMessage(format, args);
            if (log.IsDebugEnabled)
            {
                log.DebugFormat(format, args);
            }
        }
        public static void Error(object message)
        {
            HandMessage(message);
            if (log.IsErrorEnabled)
            {
                log.Error(message);
            }
        }
        public static void Error(object message, Exception ex)
        {
            HandMessage(message, ex);
            if (log.IsErrorEnabled)
            {
                log.Error(message, ex);
            }
        }
        public static void ErrorFormat(string format, params object[] args)
        {
            HandMessage(format, args);
            if (log.IsErrorEnabled)
            {
                log.ErrorFormat(format, args);
            }
        }
        public static void Fatal(object message)
        {
            HandMessage(message);
            if (log.IsFatalEnabled)
            {
                log.Fatal(message);
            }
        }
        public static void Fatal(object message, Exception ex)
        {
            HandMessage(message, ex);
            if (log.IsFatalEnabled)
            {
                log.Fatal(message, ex);
            }
        }
        public static void FatalFormat(string format, params object[] args)
        {
            HandMessage(format, args);
            if (log.IsFatalEnabled)
            {
                log.FatalFormat(format, args);
            }
        }
        public static void Info(object message)
        {
            HandMessage(message);
            if (log.IsInfoEnabled)
            {
                log.Info(message);
            }
        }
        public static void Info(object message, Exception ex)
        {
            HandMessage(message, ex);
            if (log.IsInfoEnabled)
            {
                log.Info(message, ex);
            }
        }
        public static void InfoFormat(string format, params object[] args)
        {
            HandMessage(format, args);
            if (log.IsInfoEnabled)
            {
                log.InfoFormat(format, args);
            }
        }
        public static void Warn(object message)
        {
            HandMessage(message);
            if (log.IsWarnEnabled)
            {
                log.Warn(message);
            }
        }
        public static void Warn(object message, Exception ex)
        {
            HandMessage(message, ex);
            if (log.IsWarnEnabled)
            {
                log.Warn(message, ex);
            }
        }
        public static void WarnFormat(string format, params object[] args)
        {
            HandMessage(format, args);
            if (log.IsWarnEnabled)
            {
                log.WarnFormat(format, args);
            }
        }
        #endregion

        #region 手动加载配置
        public static void LoadADONetAppender()
        {
            Hierarchy hier = LogManager.GetLoggerRepository() as log4net.Repository.Hierarchy.Hierarchy;
            if (hier != null)
            {
                log4net.Appender.AdoNetAppender appender = new log4net.Appender.AdoNetAppender();
                appender.Name = "AdoNetAppender";
                appender.CommandType = CommandType.Text;
                appender.BufferSize = 1;
                appender.ConnectionType = "System.Data.SqlClient.SqlConnection, System.Data, Version=1.0.3300.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
                appender.ConnectionString = _ConnectionString;
                appender.CommandText = @"INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @message, @exception)";
                appender.AddParameter(new AdoNetAppenderParameter { ParameterName = "@log_date", DbType = System.Data.DbType.DateTime, Layout = new log4net.Layout.RawTimeStampLayout() });
                appender.AddParameter(new AdoNetAppenderParameter { ParameterName = "@thread", DbType = System.Data.DbType.String, Size = 255, Layout = new Layout2RawLayoutAdapter(new PatternLayout("%thread")) });
                appender.AddParameter(new AdoNetAppenderParameter { ParameterName = "@log_level", DbType = System.Data.DbType.String, Size = 50, Layout = new Layout2RawLayoutAdapter(new PatternLayout("%level")) });
                appender.AddParameter(new AdoNetAppenderParameter { ParameterName = "@logger", DbType = System.Data.DbType.String, Size = 255, Layout = new Layout2RawLayoutAdapter(new PatternLayout("%logger")) });
                appender.AddParameter(new AdoNetAppenderParameter { ParameterName = "@message", DbType = System.Data.DbType.String, Size = 4000, Layout = new Layout2RawLayoutAdapter(new PatternLayout("%message")) });
                appender.AddParameter(new AdoNetAppenderParameter { ParameterName = "@exception", DbType = System.Data.DbType.String, Size = 4000, Layout = new Layout2RawLayoutAdapter(new ExceptionLayout()) });
                appender.ActivateOptions();
                BasicConfigurator.Configure(appender);
            }
        }

        public static void LoadFileAppender()
        {
            FileAppender appender = new FileAppender();
            appender.Name = "FileAppender";
            appender.File = "error.log";
            appender.AppendToFile = true;

            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = _ConversionPattern;
            patternLayout.ActivateOptions();
            appender.Layout = patternLayout;

            //选择UTF8编码，确保中文不乱码。
            appender.Encoding = Encoding.UTF8;

            appender.ActivateOptions();
            BasicConfigurator.Configure(appender);

        }

        public static void LoadRollingFileAppender()
        {
            RollingFileAppender appender = new RollingFileAppender();
            appender.AppendToFile = true;
            appender.Name = "RollingFileAppender";
            appender.DatePattern = "yyyy-MM-dd HH'时.log'";
            appender.File = "Logs/";
            appender.AppendToFile = true;
            appender.RollingStyle = RollingFileAppender.RollingMode.Composite;
            appender.MaximumFileSize = "500kb";
            appender.MaxSizeRollBackups = 10;
            appender.StaticLogFileName = false;


            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = _ConversionPattern;
            patternLayout.ActivateOptions();
            appender.Layout = patternLayout;

            //选择UTF8编码，确保中文不乱码。
            appender.Encoding = Encoding.UTF8;

            appender.ActivateOptions();
            BasicConfigurator.Configure(appender);
        }

        public static void LoadConsoleAppender()
        {
            ConsoleAppender appender = new ConsoleAppender();
            appender.Name = "ConsoleAppender";

            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = _ConversionPattern;
            patternLayout.ActivateOptions();
            appender.Layout = patternLayout;

            appender.ActivateOptions();
            BasicConfigurator.Configure(appender);
        }

        public static void LoadTraceAppender()
        {
            TraceAppender appender = new TraceAppender();
            appender.Name = "TraceAppender";

            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = _ConversionPattern;
            patternLayout.ActivateOptions();
            appender.Layout = patternLayout;

            appender.ActivateOptions();
            BasicConfigurator.Configure(appender);
        }

        public static void LoadEventLogAppender()
        {
            EventLogAppender appender = new EventLogAppender();
            appender.Name = "EventLogAppender";

            PatternLayout patternLayout = new PatternLayout();
            patternLayout.ConversionPattern = _ConversionPattern;
            patternLayout.ActivateOptions();
            appender.Layout = patternLayout;

            appender.ActivateOptions();
            BasicConfigurator.Configure(appender);
        }
        #endregion

        #region 定义常规应用程序中未处理的异常信息记录方式
        public static void LoadUnhandledException()
        {
            AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler
 ((sender, e) =>
 {
     log.Fatal("未处理的异常", e.ExceptionObject as Exception);
 });
        }
        #endregion
    }
}

　

log.xml

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="log4net" type="System.Configuration.IgnoreSectionHandler"/>
  </configSections>
  <log4net>
    <!--定义输出到文件中-->
    <appender name="SysAppender" type="log4net.Appender.RollingFileAppender">
      <!--日志的路径-->
      <file value="Logs/" />
      <!--是否覆盖，默认是追加true-->
      <appendToFile value="true"/>
      <rollingStyle value="Composite"/>
      <!--文件名称-->
      <DatePattern value="yyyy-MM-dd HH'时.log'"></DatePattern>
      <!--设置无限备份=-1 ，最大备份数为1000-->
      <param name="MaxSizeRollBackups" value="1000"/>
      <!--每个文件的大小-->
      <param name="MaximumFileSize" value="500KB"/>
      <!--名称是否可以更改 为false为可以更改-->
      <param name="StaticLogFileName" value="false"/>
      <layout type="log4net.Layout.PatternLayout">
        <!--输出格式-->
        <conversionPattern value="%n【记录时间】%date%n【描述】%message%n"/>
      </layout>
    </appender>
    <!--定义输出到控制台命令行中-->
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%n【记录时间】%date%n【描述】%message%n"/>
      </layout>
    </appender>
    <!--定义输出到windows事件中-->
    <appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%n＝＝＝＝＝＝＝＝＝＝
%n【日志级别】%-5level
%n【记录时间】%date
%n【线程编号】[%thread]
%n【执行时间】[%r]毫秒
%n【出错文件】%F
%n【出错行号】%L
%n【出错的类】%logger 属性[%property{NDC}]
%n【错误描述】%message
%n【错误详情】%newline"/>
      </layout>
    </appender>
    <!--定义输出到Trace中-->
    <appender name="TraceAppender" type="log4net.Appender.TraceAppender">
      <layout type="log4net.Layout.PatternLayout">
        <!--<conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />-->
        <conversionPattern value="%n＝＝＝＝＝＝＝＝＝＝
%n【日志级别】%-5level
%n【记录时间】%date
%n【线程编号】[%thread]
%n【执行时间】[%r]毫秒
%n【出错文件】%F
%n【出错行号】%L
%n【出错的类】%logger 属性[%property{NDC}]
%n【错误描述】%message
%n【错误详情】%newline"/>
      </layout>
    </appender>
    <!--定义日志的输出媒介，下面定义日志以四种方式输出。也可以下面的按照一种类型或其他类型输出。-->
    <root>
      <!--日志的级别 OFF > FATAL > ERROR > WARN > INFO > DEBUG > ALL 只有日志输出级别大于或等于配置的级别才能输出日志信息-->
      <level value="ALL" />
      <!--文件形式记录日志-->
      <appender-ref ref="SysAppender"/>
      <!--控制台控制显示日志-->
      <appender-ref ref="ConsoleAppender"/>
      <!--Windows事件日志-->
      <!--<appender-ref ref="EventLogAppender"/>-->
      <!--TraceAppender日志-->
      <!--<appender-ref ref="TraceAppender"/>-->
    </root>
  </log4net>
</configuration>