【log4net】代码配置记录
配置代码
log4net配置类
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146using log4net;
using log4net.Appender;
using log4net.Config;
using log4net.Core;
using log4net.Layout;
using log4net.Repository.Hierarchy;
using System.Configuration;
using System.Reflection;
using System.Text;
namespace Utils.LogUtils
{
public class LogConfig
{
private static string LOG_PATTERN = "[%date] %level [%thread][%c{1}:%line] - %m%n";
private static string DATE_PATTERN = "yyyy-MM-dd'.log'";
private static string LOG_FILE_PATH = "Log/";
private static string connectionType = "System.Data.SqlClient.SqlConnection, System.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089";
private static string commandText = @"INSERT INTO Log ([Date],[Thread],[Level],[Logger],[Message],[Exception]) VALUES (@log_date, @thread, @log_level, @logger, @message, @exception)";
/// <summary>
/// 本地日志设置
/// </summary>
public static void LocalConfig()
{
Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
PatternLayout patternLayout = new PatternLayout();
patternLayout.ConversionPattern = LOG_PATTERN;
patternLayout.ActivateOptions();
// 控制台输出的日志
TraceAppender tracer = new TraceAppender();
tracer.Layout = patternLayout;
tracer.ActivateOptions();
hierarchy.Root.AddAppender(tracer);
// 滚动文件日志
RollingFileAppender roller = new RollingFileAppender();
roller.Layout = patternLayout;
roller.AppendToFile = true;
roller.RollingStyle = RollingFileAppender.RollingMode.Date;
roller.MaxSizeRollBackups = 4;
roller.MaximumFileSize = "1MB";
roller.StaticLogFileName = false;
roller.File = LOG_FILE_PATH;
roller.DatePattern = DATE_PATTERN;
roller.Encoding = Encoding.UTF8;
roller.ActivateOptions();
hierarchy.Root.AddAppender(roller);
hierarchy.Root.Level = log4net.Core.Level.All;
hierarchy.Configured = true;
BasicConfigurator.Configure(roller);
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType).Info("本地日志启动");
}
/// <summary>
/// 数据库日志设置
/// </summary>
public static void DataBaseConfig()
{
// 从web.config的appSetting节点获取配置的数据库连接
string connectionString = ConfigurationManager.AppSettings["DBConnection"].ToString();
Hierarchy hierarchy = (Hierarchy)LogManager.GetRepository();
PatternLayout patternLayout = new PatternLayout();
patternLayout.ConversionPattern = LOG_PATTERN;
patternLayout.ActivateOptions();
TraceAppender tracer = new TraceAppender();
tracer.Layout = patternLayout;
tracer.ActivateOptions();
hierarchy.Root.AddAppender(tracer);
// ado.net数据库日志
AdoNetAppender appender = new AdoNetAppender();
appender.Name = "adoNetAppender";
appender.ConnectionType = connectionType;
appender.ConnectionString = connectionString;
appender.CommandText = commandText;
appender.CommandType = System.Data.CommandType.Text;
appender.BufferSize = 1;
AdoNetAppenderParameter parameter = new AdoNetAppenderParameter();
parameter.DbType = System.Data.DbType.Date;
parameter.ParameterName = "@log_date";
parameter.Size = 255;
parameter.Layout = new RawTimeStampLayout();
appender.AddParameter(parameter);
parameter = new AdoNetAppenderParameter();
parameter.DbType = System.Data.DbType.String;
parameter.ParameterName = "@thread";
parameter.Size = 50;
patternLayout = new PatternLayout("%thread");
parameter.Layout = new Layout2RawLayoutAdapter(patternLayout);
appender.AddParameter(parameter);
parameter = new AdoNetAppenderParameter();
parameter.DbType = System.Data.DbType.String;
parameter.Size = 50;
parameter.ParameterName = "@log_level";
patternLayout = new PatternLayout("%level");
parameter.Layout = new Layout2RawLayoutAdapter(patternLayout);
appender.AddParameter(parameter);
parameter = new AdoNetAppenderParameter();
parameter.DbType = System.Data.DbType.String;
parameter.ParameterName = "@logger";
parameter.Size = 255;
patternLayout = new PatternLayout("%logger");
parameter.Layout = new Layout2RawLayoutAdapter(patternLayout);
appender.AddParameter(parameter);
parameter = new AdoNetAppenderParameter();
parameter.DbType = System.Data.DbType.String;
parameter.ParameterName = "@message";
parameter.Size = 4000;
patternLayout = new PatternLayout("%message");
parameter.Layout = new Layout2RawLayoutAdapter(patternLayout);
appender.AddParameter(parameter);
parameter = new AdoNetAppenderParameter();
parameter.DbType = System.Data.DbType.String;
parameter.ParameterName = "@exception";
parameter.Size = 2000;
parameter.Layout = new Layout2RawLayoutAdapter(new ExceptionLayout());
appender.AddParameter(parameter);
appender.ActivateOptions();
hierarchy.Root.AddAppender(appender);
hierarchy.Root.Level = Level.All;
hierarchy.Configured = true;
BasicConfigurator.Configure(appender);
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType).Info("数据库日志启动");
}
}
}日志工具类
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47using System;
using log4net;
namespace Utils.LogUtils
{
/// <summary>
/// 日志工具
/// </summary>
public class LogHelper
{
// 类型使用typeof(classname)或者MethodBase.GetCurrentMethod().DeclaringType之类的
/// <summary>
/// 输出异常日志
/// </summary>
/// <param name="type">类型</param>
/// <param name="message">信息</param>
/// <param name="ex">异常</param>
public static void ErrorLog(Type type, string message, Exception ex)
{
ILog log = LogManager.GetLogger(type);
log.Error(message, ex);
}
/// <summary>
/// 输出调试日志
/// </summary>
/// <param name="type">类型</param>
/// <param name="message">信息</param>
public static void DebugLog(Type type, string message)
{
ILog log = LogManager.GetLogger(type);
log.Debug(message);
}
/// <summary>
/// 输出信息日志
/// </summary>
/// <param name="type">类型</param>
/// <param name="message">信息</param>
public static void InfoLog(Type type, string message)
{
ILog log = LogManager.GetLogger(type);
log.Info(message);
}
}
}
小记
- 配置的时候要严格遵守顺序，
hierarchy要在最前面声明，不然怎么配置都无效 - 可以通过log4net的调试日志来找问题
在Web.config添加如下配置，来启动log4net的调试日志1
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13<appSettings>
<add key="log4net.Internal.Debug" value="true"/>
</appSettings>
<system.diagnostics>
<trace autoflush="true">
<listeners>
<add
name="textWriterTraceListener"
type="System.Diagnostics.TextWriterTraceListener"
initializeData="D:\log4net.txt" />
</listeners>
</trace>
</system.diagnostics>