log4net 动态载入配置根据类名进行写入日志文件

锋君

于 2025-03-12 11:14:54 发布

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文章标签：服务器 c# .net log4j

本文链接：https://blog.youkuaiyun.com/xiuyuandashen/article/details/146198799

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前言

默认log4net配置写入的日志文件都是写入到一个日志文件当中，最多根据时间进行拆分文件，当日志过多时不好排除问题，单个文件也会过大

实现方式

using log4net.Appender;
using log4net.Core;
using log4net.Layout;
using log4net;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


/// <summary>
/// 动态生成日志配置文件，根据传入的Type，该类不影响默认 log4net.config 配置文件
/// </summary>
public static class LoggerManager
{
    public static ILog GetLogger(Type type)
    {
        DateTime Now = DateTime.Now;
        // All Level 日志存储位置
        string logFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Logs", Now.ToString("yyyy-MM-dd"), $"{type.Name}.log");
        // 异常 Error Level 日志存储位置
        string logErrorFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Logs", "Error",Now.ToString("yyyy-MM-dd"), $"{type.Name}.log");
        var hierarchy = (log4net.Repository.Hierarchy.Hierarchy)LogManager.GetRepository();
        var logger = hierarchy.GetLogger(type.FullName) as log4net.Repository.Hierarchy.Logger;

        if (logger != null && logger.Appenders.Count > 0)
        {
            return new LogImpl(logger);
        }

        // 全局等级的配置  RollingFileAppender
        var appender = new RollingFileAppender
        {
            Name = $"{type.Name}Appender",
            File = logFilePath,
            AppendToFile = true,
            RollingStyle = RollingFileAppender.RollingMode.Size,
            MaxFileSize = 10 * 1024 * 1024, // 10MB
            MaxSizeRollBackups = 5,
            StaticLogFileName = true,
            Layout = new PatternLayout("[%date{yyyy-MM-dd HH:mm:ss,fff}] [%level] %message%newline"),
            Threshold = Level.All,
            LockingModel = new FileAppender.MinimalLock(),
            Encoding = Encoding.UTF8
        };

        // 异常的配置
        var errAppender = new RollingFileAppender
        {
            Name = $"{type.Name}Appender",
            File = logErrorFilePath,
            AppendToFile = true,
            RollingStyle = RollingFileAppender.RollingMode.Size,
            MaxFileSize = 10 * 1024 * 1024, // 10MB
            MaxSizeRollBackups = 5,
            StaticLogFileName = true,
            Layout = new PatternLayout("[%date{yyyy-MM-dd HH:mm:ss,fff}] [%level] %message%newline"),
            Threshold = Level.Error,
            LockingModel = new FileAppender.MinimalLock(),
            Encoding = Encoding.UTF8
        };

        appender.ActivateOptions();
        errAppender.ActivateOptions();
        logger.AddAppender(appender);
        logger.AddAppender(errAppender);

        logger.Repository.Configured = true;

        return new LogImpl(logger);
    }
}

上述方法可以在不允许原有配置log4net.config 情况下进行

使用案例

下面代码是SuperSocket的一个命令（Socket）接收方法
private static readonly log4net.ILog sg_log = LoggerManager.GetLogger(typeof(DevAlarmReport));
使用动态记录

记录Info日志
sg_log.Info($"DevAlarmReport,来源方IP:{ip},接受数据:{receivedData}");

记录Error日志
sg_log.Error(Error);
Error 等级日志根据动态配置会存储在
在这里插入图片描述

using SuperSocket.SocketBase.Command;
using SuperSocket.SocketBase.Protocol;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

using Newtonsoft.Json;
using System.Configuration;

using log4net;
using JMT.FrmXinYiChangCommunication.Common;
using JMT.FrmXinYiChangCommunication.Entity;

namespace JMT.FrmXinYiChangLightState
{
    //接收设备停机开机状态信息-过滤器
    public class DevAlarmReport : CommandBase<SocketSession, BinaryRequestInfo>
    {
        //SqlSugarClient Db;
        //List<Device> devices = new List<Device>();
        //public XYCBll bll = new XYCBll();
        //public XmlBuilders XmlBuilders = new XmlBuilders();
        Dictionary<string, string> response = new Dictionary<string, string>();
        //日志
        private static readonly log4net.ILog sg_log = LoggerManager.GetLogger(typeof(DevAlarmReport));
       // public SuperSocketService service = new SuperSocketService();

        public static string CmdName = "DevAlarmReport";
        int light;
        public override void ExecuteCommand(SocketSession session, BinaryRequestInfo requestInfo)
        {
            try
            {
                string ip = session.RemoteEndPoint.Address.ToString();
                string receivedData = Encoding.UTF8.GetString(requestInfo.Body);
                截取头部4个字节长度
                var startIndex = receivedData.IndexOf("{");
                var dataStartStr = receivedData.Substring(startIndex, receivedData.Length - startIndex);
                var endIndex = dataStartStr.IndexOf("}");
                // string str = receivedData.Substring(3, receivedData.Length - 4);
                var dataStr = dataStartStr.Substring(0, endIndex + 1);

                sg_log.Info($"DevAlarmReport,来源方IP:{ip},接受数据:{receivedData}");

                // 处理数据
                DevStatusRecord report = JsonConvert.DeserializeObject<DevStatusRecord>(dataStr);
                CheckRequestMsg(report);
                report.MessagePushTime = DateTime.Now;

                
                // 添加到队列

                // 响应机台
                string ResposeResult = JsonConvert.SerializeObject(CommandResponseResult.Success(CmdName));
                byte[] sendData = ResposeResult.ToByteByStr();
                session.Send(sendData, 0, sendData.Length);
            }
            catch(Exception ex)
            {
                string Error = $"命令:[{CmdName}],解析处理数据出现问题:{ex.Message}";
                string ResposeResult = JsonConvert.SerializeObject(CommandResponseResult.Error(CmdName, Error));
                byte[] sendData = ResposeResult.ToByteByStr();
                session.Send(sendData, 0, sendData.Length);
                sg_log.Error(Error);
            }
        }

        /// <summary>
        /// 校验请求参数
        /// </summary>
        /// <param name="record"></param>
        /// <exception cref="Exception"></exception>
        public void CheckRequestMsg(DevStatusRecord record)
        {
            if (string.IsNullOrEmpty(record.EqNo))
            {
                throw new Exception($"机台号不能为空!");
            }
        }
    }

}

不会影响原有的log4net.config

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
	<!-- This section contains the log4net configuration settings -->
	<log4net>
		<appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
			<layout type="log4net.Layout.PatternLayout" value="%date [%thread] %-5level %logger - %message%newline" />
		</appender>

    <appender name="LogInfoAppender" type="log4net.Appender.RollingFileAppender">
			<file value="Logs/Info/" />
			<appendToFile value="true" />
			<!-- 文件的编码方式 -->
			<param name="Encoding" value="UTF-8"/>
			<rollingStyle value="Date" />
			<staticLogFileName value="false" />
			<datePattern value="yyyyMMdd_HH'.log'" />
			<maximumFileSize value="15MB" />
			<!--最小锁定模型以允许多个进程可以写入同一个文件-->
			<param name="lockingModel"  type="log4net.Appender.FileAppender+MinimalLock" />
			<layout type="log4net.Layout.PatternLayout">
				<param name="ConversionPattern" value="&#13;&#10;--------------------------------------------------------------------------------------&#13;&#10;%n日志时间：%d [%t] %n日志级别：%-5p %n日 志 类：%c [%x] %n%m" />
				<!--<param name="Header" value="&#13;&#10;======================================================================================&#13;&#10;" />-->
			</layout>
			<filter type="log4net.Filter.LevelRangeFilter">
				<param name="LevelMin" value="DEBUG"/>
				<param name="LevelMax" value="INFO"/>
			</filter>
			<param name="Encoding" value="utf-8" />
		</appender>

		<appender name="RollingErrorLogFileAppender" type="log4net.Appender.RollingFileAppender">
			<file value="Logs/Error/" />
			<appendToFile value="true" />
			<rollingStyle value="Date" />
			<staticLogFileName value="false" />
			<datePattern value="yyyyMMdd_HH'Err.log'" />
			<maximumFileSize value="15MB" />
			<!--最小锁定模型以允许多个进程可以写入同一个文件-->
			<param name="lockingModel"  type="log4net.Appender.FileAppender+MinimalLock" />
			<layout type="log4net.Layout.PatternLayout">
				<param name="ConversionPattern" value="%n&#13;&#10;--------------------------------------------------------------------------------------&#13;&#10;%n日志时间：%d [%t] %n日志级别：%-5p %n日 志 类：%c [%x] %n%m" />
			</layout>
			<filter type="log4net.Filter.LevelRangeFilter">
				<param name="LevelMin" value="WARN"/>
				<param name="LevelMax" value="FATAL"/>
			</filter>
			<param name="Encoding" value="utf-8" />
		</appender>

    <!-- 设备联机日志 -->
    <appender name="ConnectedClosed" type="log4net.Appender.RollingFileAppender">
			<file value="Logs/ConnectedClosed/" />
			<appendToFile value="true" />
			<!-- 文件的编码方式 -->
			<param name="Encoding" value="UTF-8"/>
			<rollingStyle value="Date" />
			<staticLogFileName value="false" />
			<datePattern value="yyyyMMdd'ConnectedClosed.log'" />
			<maximumFileSize value="15MB" />
			<!--最小锁定模型以允许多个进程可以写入同一个文件-->
			<param name="lockingModel"  type="log4net.Appender.FileAppender+MinimalLock" />
			<layout type="log4net.Layout.PatternLayout">
				<param name="ConversionPattern" value="&#13;&#10;--------------------------------------------------------------------------------------&#13;&#10;%n日志时间：%d [%t] %n日志级别：%-5p %n日 志 类：%c [%x] %n%m" />
				<!--<param name="Header" value="&#13;&#10;======================================================================================&#13;&#10;" />-->
			</layout>
			<filter type="log4net.Filter.LevelRangeFilter">
				<param name="LevelMin" value="DEBUG"/>
				<param name="LevelMax" value="INFO"/>
			</filter>
			<param name="Encoding" value="utf-8" />
		</appender>
    <!-- 发送命令接收命令日志 -->
    <appender name="SendGet" type="log4net.Appender.RollingFileAppender">
      <file value="Logs/SendGet/" />
      <appendToFile value="true" />
      <!-- 文件的编码方式 -->
      <param name="Encoding" value="UTF-8"/>
      <rollingStyle value="Date" />
      <staticLogFileName value="false" />
      <datePattern value="yyyyMMdd'SendGet.log'" />
      <maximumFileSize value="15MB" />
      <!--最小锁定模型以允许多个进程可以写入同一个文件-->
      <param name="lockingModel"  type="log4net.Appender.FileAppender+MinimalLock" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="&#13;&#10;--------------------------------------------------------------------------------------&#13;&#10;%n日志时间：%d [%t] %n日志级别：%-5p %n日 志 类：%c [%x] %n%m" />
        <!--<param name="Header" value="&#13;&#10;======================================================================================&#13;&#10;" />-->
      </layout>
      <filter type="log4net.Filter.LevelRangeFilter">
        <param name="LevelMin" value="DEBUG"/>
        <param name="LevelMax" value="INFO"/>
      </filter>
      <param name="Encoding" value="utf-8" />
    </appender>
    <!-- 数据上传日志 -->
    <appender name="DataMes" type="log4net.Appender.RollingFileAppender">
      <file value="Logs/DataMes/" />
      <appendToFile value="true" />
      <!-- 文件的编码方式 -->
      <param name="Encoding" value="UTF-8"/>
      <rollingStyle value="Date" />
      <staticLogFileName value="false" />
      <datePattern value="yyyyMMdd_HH'DataMes.log'" />
      <maximumFileSize value="15MB" />
      <!--最小锁定模型以允许多个进程可以写入同一个文件-->
      <param name="lockingModel"  type="log4net.Appender.FileAppender+MinimalLock" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="&#13;&#10;--------------------------------------------------------------------------------------&#13;&#10;%n日志时间：%d [%t] %n日志级别：%-5p %n日 志 类：%c [%x] %n%m" />
        <!--<param name="Header" value="&#13;&#10;======================================================================================&#13;&#10;" />-->
      </layout>
      <filter type="log4net.Filter.LevelRangeFilter">
        <param name="LevelMin" value="DEBUG"/>
        <param name="LevelMax" value="INFO"/>
      </filter>
      <param name="Encoding" value="utf-8" />
    </appender>




    <!-- Setup the root category, add the appenders and set the default level -->
		<!--<root>
			<level value="ALL" />
			<appender-ref ref="LogInfo" />
			<appender-ref ref="RollingErrorLogFileAppender" />
			<appender-ref ref="ResolveLogInfo" />
		</root>-->

		<logger name="LogInfo">
			<appender-ref ref="LogInfoAppender" />
		</logger>
    <logger name="ConnectedClosed">
      <appender-ref ref="ConnectedClosed" />
    </logger>
    <logger name="SendGet">
      <appender-ref ref="SendGet"/>
    </logger>
    <logger name="DataMes">
      <appender-ref ref="DataMes"/>
    </logger>
    

		<!--<logger name="ConsoleLog" additivity="true">
			--><!--additivity 是否确认子日志对象继承父日志对象的appender列表，默认为True:确认--><!--
			--><!--注意优先级，优先级低的要放在后面--><!--
			<level value="ALL" />
			<appender-ref ref="ConsoleAppender" />
		</logger>-->

	</log4net>
</configuration>

在这里插入图片描述