C# Log4net日志设置与AppenderSkeleton - ToB企服应用市场:ToB评测及商务社交产业平台

<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net" />
</configSections>
<log4net>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="D:\MyLog1" />
<appendToFile value="true" />
<param name="StaticLogFileName" value="false" />
<param name="DatePattern" value="yyyyMMdd".log"" />
<rollingStyle value="Date" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%newline %n记录时间：%date %n线程ID:[%thread] %n日志级别： %-5level %n出错类：%logger property: [%property{NDC}] - %n错误描述：%message%newline %n" />
</layout>
<lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
</appender>
<root>
<level value="ALL"></level>
<appender-ref ref="RollingFileAppender"></appender-ref>
</root>
</log4net>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
</startup>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="log4net" publicKeyToken="669e0ddf0bb1aa2a" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-2.0.15.0" newVersion="2.0.15.0" />
</dependentAssembly>
</assemblyBinding>
</runtime>
</configuration>

复制代码

// log4net初始化配置文件作用域全局 //代码：
//Log4net配置
[assembly: log4net.Config.XmlConfigurator(ConfigFileExtension = "config", Watch = true)]

复制代码

static void Main()
{
log4net.ILog _log = log4net.LogManager.GetLogger("Main");
_log.Info("正常信息 ");
_log.Error("错误");
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new Form1());
}

复制代码

[assembly: log4net.Config.XmlConfigurator(ConfigFile = "log4net.config", ConfigFileExtension = "config", Watch = true)]

复制代码

private void button1_Click(object sender, EventArgs e)
{
log4net.ILog log = log4net.LogManager.GetLogger("AppLogger1");
log.Info("button test");
}

复制代码

// strlog4Config 这里传入的是log4net.config 的配置文件
public static void InitLogNet(string strlog4Config)
{
log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(strlog4Config));
_Logfile = strlog4Config;
_Log["info_logo"] = log4net.LogManager.GetLogger("info_logo");
_Log["error_logo"] = log4net.LogManager.GetLogger("error_logo");
}

复制代码

Log4NetHelper.InitLog4Net(Application.StartupPath + "\\log4net.config");

复制代码

public class Log4NetHelper
{
private static string _Logfile;
private static Dictionary<string, log4net.ILog> _Log = new Dictionary<string, log4net.ILog>();
public static void InitLogNet(string strlog4Config)
{
log4net.Config.XmlConfigurator.Configure(new System.IO.FileInfo(strlog4Config));
_Logfile = strlog4Config;
_Log["info_logo"] = log4net.LogManager.GetLogger("info_logo");
_Log["error_logo"] = log4net.LogManager.GetLogger("error_logo");
}
/// <summary>
/// 写入日志
/// </summary>
public static void WriteInfoLog(string strInfoLog)
{
if (_Log["info_logo"].IsInfoEnabled)
{
_Log["info_logo"].Info(strInfoLog);
}
}
/// <summary>
/// 功能描述:写入错误日志
/// </summary>
/// <param name="strErrLog">strErrLog</param>
/// <param name="ex">ex</param>
public static void WriteErrorLog(string strErrLog, Exception ex = null)
{
if (_Log["error_logo"].IsErrorEnabled)
{
_Log["error_logo"].Error(strErrLog, ex);
}
}
/// <summary>
/// 功能描述:写入日志
/// </summary>
/// <param name="strType">日志类型（对应log4net配置文件中logger.nama）</param>
/// <param name="strLog">strLog</param>
public static void WriteByLogType(string strType, string strLog)
{
if (!_Log.ContainsKey(strType))
{
//判断是否存在节点
if (!HasLogNode(strType))
{
WriteErrorLog("log4net配置文件不存在【" + strType + "】配置");
return;
}
_Log[strType] = log4net.LogManager.GetLogger(strType);
}
_Log[strType].Error(strLog);
}
/// <summary>
/// 功能描述:是否存在指定的配置
/// </summary>
/// <param name="strNodeName">strNodeName</param>
/// <returns>返回值</returns>
private static bool HasLogNode(string strNodeName)
{
XmlDocument doc = new XmlDocument();
doc.Load(_Logfile);
var lstNodes = doc.SelectNodes("//configuration/log4net/logger");
foreach (XmlNode item in lstNodes)
{
if (item.Attributes["name"].Value.ToLower() == strNodeName)
return true;
}
return false;
}
}

复制代码

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
</configSections>
<log4net>
<logger name="modifyLogger">
<level value="ALL" />
<appender-ref ref="modifyLogFile" />
</logger>
<appender name="modifyLogFile" type="log4net.Appender.RollingFileAppender,log4net" >
<param name= "File" value= "log/modify/"/>
<param name= "AppendToFile" value= "true"/>
<param name= "MaxSizeRollBackups" value= "10"/>
<param name= "StaticLogFileName" value= "false"/>
<param name= "DatePattern" value= "yyyy-MM-dd".log""/>
<param name= "RollingStyle" value= "Composite"/>
<maximumFileSize value="10MB"/>
<layout type="log4net.Layout.PatternLayout">
<param name="Header" value="
----------------------application startup--------------------------
" />
<param name="Footer" value="
 ----------------------application shutdown--------------------------
" />
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} --%-5p-- %m%n" />
</layout>
</appender>
<logger name="logLogger">
<level value="ALL" />
<appender-ref ref="LogFile" />
</logger>
<appender name="LogFile" type="log4net.Appender.RollingFileAppender,log4net" >
<param name= "File" value= "log/"/>
<param name= "AppendToFile" value= "true"/>
<param name= "MaxSizeRollBackups" value= "10"/>
<param name= "StaticLogFileName" value= "false"/>
<param name= "DatePattern" value= "yyyy-MM-dd".log""/>
<param name= "RollingStyle" value= "Composite"/>
<maximumFileSize value="10MB"/>
<layout type="log4net.Layout.PatternLayout">
<param name="Header" value="
----------------------application startup--------------------------
" />
<param name="Footer" value="
 ----------------------application shutdown--------------------------
" />
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} --%-5p-- %m%n" />
</layout>
</appender>
<appender>
</appender>
<logger name="logApp">
<level value="ALL" />
</logger>
<root>
</root>
</log4net>
</configuration>

复制代码

public static bool s_IsStarting = false;//程序正在加载中
public static List<string> s_ErrMsg = new List<string>();//加载过程中是错误信息
private static ILog log4Net = log4net.LogManager.GetLogger("logLogger");//全局日志 "logLogger"与log4net.config配置里的名称一致
private static readonly ILog LogModify = LogManager.GetLogger("modifyLogger");//模块参数修改记录

复制代码

<appender name="CustomAppender" type="YourNamespace.CustomAppender, YourAssembly">
</appender>
<root>
<level value="DEBUG" />
<appender-ref ref="CustomAppender" />
</root>

复制代码

public class CustomAppender : AppenderSkeleton
{
protected override void Append(LoggingEvent loggingEvent)
{
// 实现自定义的日志处理逻辑
//RenderLoggingEvent 方法将 LoggingEvent 对象中的信息（如日志级别、日志消息、时间戳等）转换为字符串。这使得日志消息可以被输出到配置的目标（如文件或控制台）中。
string _logMessage =RenderLoggingEvent(loggingEvent);
Console.WriteLine($"Custom Log Output: {_logMessage}");
}
public override void ActivateOptions()
{
base.ActivateOptions();
// 自定义初始化逻辑
}
}

复制代码