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>
转载于:https://www.cnblogs.com/ayzhanglei/p/3189063.html