第一步:新增帮助类库,即动态库,具体实现如下
using log4net; using log4net.Appender; using log4net.Config; using log4net.Layout; using log4net.Repository.Hierarchy; using System; using System.Data; using System.Text; namespace KUN.Common { public class LogHelper { #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); } #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 } }
第二步:nuget安装log4net,略
第三步:配置文件复制到项目位置,略,同时设置属性为,始终复制+内容
log4net.config,内容如下
<?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="FileAppender" type="log4net.Appender.FileAppender"> <file value="log-file.log" /> <appendToFile value="true" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" /> </layout> </appender> <appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender"> <file value="Logs/" /> <appendToFile value="true" /> <rollingStyle value="Composite" /> <staticLogFileName value="false" /> <datePattern value="yyyyMMdd'.log'" /> <maxSizeRollBackups value="10" /> <maximumFileSize value="1MB" /> <layout type="log4net.Layout.PatternLayout"> <conversionPattern value="%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" /> </layout> </appender> <!-- Setup the root category, add the appenders and set the default level --> <root> <level value="ALL" /> <appender-ref ref="RollingLogFileAppender" /> </root> </log4net> </configuration>
第四步:应用项目中,注册使用,如下所示:
using log4net.Config; using log4net.Repository; using System; using System.IO; using System.Windows.Forms; namespace Demo { static class Program { /// <summary> /// ILoggerRepository repository /// </summary> public static ILoggerRepository repository { get; set; } /// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); //加log4日志 repository = log4net.LogManager.GetRepository(); XmlConfigurator.Configure(repository, new FileInfo("log4net.config")); Application.Run(new Form1()); } } }
第五步:测试使用,如下,详细略
private void btnLogTest_Click(object sender, EventArgs e) { LogHelper.ErrorFormat("log4net-{0}", "日志测试一把"); }
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