.net core 中使用Log4net输出日志到数据库中去
1.使用Nuget安装log4net 和 mysql.data
2.设置log4net 的配置文件 log4net.config
- 可以设置多个仓库进而插入到数据不同的表中
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<log4net>
<!--Info日志-->
<logger name="loginfo">
<level value="INFO" />
<appender-ref ref="AdoNetAppender_MySql"/>
</logger>
<!-- name属性指定其名称,type则是log4net.Appender命名空间的一个类的名称,意思是,指定使用哪种介质-->
<appender name="AdoNetAppender_MySql" type="log4net.Appender.ADONetAppender">
<!--日志缓存写入条数 设置为0时只要有一条就立刻写到数据库-->
<bufferSize value="1" />
<!--日志数据库连接串-->
<connectionType value="MySql.Data.MySqlClient.MySqlConnection, MySql.Data" />
<connectionString value="server=localhost;userid=root;pwd=123456;port=3306;database=hipmysql;SslMode=none" />
<!--日志数据库脚本-->
<commandText value="INSERT INTO LogDetails (LogDate,LogThread,LogLevel,LogLogger,LogActionClick,LogMessage,UserName,UserIP) VALUES (@log_date, @thread, @log_level, @logger, @ActionsClick, @message,@UserName,@UserIP)" />
<!--日志时间LogDate -->
<parameter>
<parameterName value="@log_date" />
<dbType value="DateTime" />
<layout type="log4net.Layout.RawTimeStampLayout" />
</parameter>
<!--线程号-->
<parameter>
<parameterName value="@thread" />
<dbType value="String" />
<size value="100" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%t" />
</layout>
</parameter>
<!--日志类型LogLevel -->
<parameter>
<parameterName value="@log_level" />
<dbType value="String" />
<size value="200" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%p" />
</layout>
</parameter>
<!--日志名称-->
<parameter>
<parameterName value="@logger" />
<dbType value="String" />
<size value="500" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%logger" />
</layout>
</parameter>
<parameter>
<parameterName value="@message" />
<dbType value="String" />
<size value="3000" />
<layout type="Utility.Log4net.ActionLayoutPattern">
<!--<conversionPattern value="%message" />-->
<conversionPattern value="%actionInfo{Message}" />
</layout>
</parameter>
<parameter>
<parameterName value="@ActionsClick" />
<dbType value="String" />
<size value="4000" />
<layout type="log4net.Layout.ExceptionLayout" />
<!--<layout type="Log4NetApply.MyLayout" >
<conversionPattern value = "%property{ActionsClick}"/>
</layout>-->
</parameter>
<!--自定义UserName-->
<parameter>
<parameterName value="@UserName" />
<dbType value="String" />
<size value="30" />
<layout type="Utility.Log4net.ActionLayoutPattern" >
<conversionPattern value = "%actionInfo{UserName}"/>
</layout>
</parameter>
<parameter>
<parameterName value="@UserIP" />
<dbType value="String" />
<size value="20" />
<layout type="Utility.Log4net.ActionLayoutPattern" >
<conversionPattern value = "%actionInfo{UserIP}"/>
</layout>
</parameter>
</appender>
</log4net>
</configuration>
3.在mysql 中创建对应的数据表
4.创建自定义字段的实体类
using System;
using System.Collections.Generic;
using System.Text;
namespace Utility.Log4net
{
public class ActionLoggerInfo
{
public string UserName { get; set; }
public string UserIP { get; set; }
public string Message { get; set; }
public ActionLoggerInfo(string username, string userip,string message)
{
this.UserName = username;
this.UserIP = userip;
this.Message = message;
}
}
}
5.创建转换器类ActionConverter
using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using log4net.Layout;
using log4net.Layout.Pattern;
using log4net.Core;
namespace Utility.Log4net
{
public class ActionConverter: PatternLayoutConverter
{
protected override void Convert(System.IO.TextWriter writer, LoggingEvent loggingEvent)
{
var actionInfo = loggingEvent.MessageObject as ActionLoggerInfo;
if (actionInfo == null)
{
writer.Write("");
}
else
{
switch (this.Option.ToLower())
{
case "username":
writer.Write(actionInfo.UserName);
break;
case "userip":
writer.Write(actionInfo.UserIP);
break;
case "message":
writer.Write(actionInfo.Message);
break;
default:
writer.Write("");
break;
}
}
}
}
}
6.继承log4net 的PatternLayout ，创建自定义的属性类
using System;
using System.Collections.Generic;
using System.Text;
using log4net;
using log4net.Layout;
using log4net.Layout.Pattern;
using log4net.Core;
namespace Utility.Log4net
{
public class ActionLayoutPattern : PatternLayout
{
public ActionLayoutPattern()
{
this.AddConverter("actionInfo", typeof(ActionConverter));
}
}
}
7.创建日志帮助类loghelper
using log4net;
using log4net.Config;
using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
namespace Utility.Log4net
{
public class LogHelper
{
public static readonly LogHelper Instance = new LogHelper();
private static readonly log4net.ILog loginfo = log4net.LogManager.GetLogger("loginfo");
//public static log4net.ILog loginfo = LogManager.GetLogger("loginfo");
public LogHelper() {
string text = "";
text = System.AppDomain.CurrentDomain.BaseDirectory + "config\\Log4Net.config";
XmlConfigurator.ConfigureAndWatch(new FileInfo(text));
}
private static ActionLoggerInfo _message = null;
private static log4net.ILog _log;
public static log4net.ILog Log
{
get
{
if (_log == null)
{
_log = LogManager.GetLogger("OperateLogger");
}
return _log;
}
}
public static void Debug()
{
if (Log.IsDebugEnabled)
{
Log.Debug(_message);
}
}
public static void Error()
{
if (Log.IsErrorEnabled)
{
Log.Error(_message);
}
}
public static void Fatal()
{
if (Log.IsFatalEnabled)
{
Log.Fatal(_message);
}
}
public static void Info()
{
if (loginfo.IsInfoEnabled)
{
loginfo.Info(_message);
}
}
public static void Warn()
{
try
{
if (Log.IsWarnEnabled)
{
Log.Warn(_message);
}
} catch (Exception e)
{
var t = e;
}
}
public static void SaveMessage(string username, string userip, string message, int level)
{
_message = new ActionLoggerInfo(username, userip, message);
switch (level)
{
case 1: Info(); break;
case 2: Warn(); break;
case 3: Error(); break;
case 4: Fatal(); break;
default: break;
}
}
}
}
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