C#-日志系统的创建&最小输出等级的设置

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概述

使用第三方库 Serilog、Serilog.Sinks.File、Serilog.Formatting.Compact 进行创建

步骤

安装第三方库

Log 全局变量

        /// <summary>
        /// 日志系统
        /// </summary>
        public ILogger Log { get; private set; }

创建日志实例方法

        /// <summary>
        /// 独立的日志系统
        /// </summary>
        /// <returns></returns>
        private ILogger buildLogService()
        {
            var basepath = Path.Combine(获取路径方法, "Log");
            var logInstance = new LoggerConfiguration()
            //设置最小的输出日志等级为Verbose
                .MinimumLevel.Verbose()
                .WriteTo.Logger(lc => lc
              //这行是合并Fatal和Error级别的日志
                    .Filter.ByIncludingOnly(v => v.Level == Serilog.Events.LogEventLevel.Error || v.Level == Serilog.Events.LogEventLevel.Fatal)
                    .WriteTo.File(
                            Path.Combine(basepath, "error-.txt"),
                            //outputTemplate: @"{Timestamp:yyyy-MM-dd HH:mm-dd } [{Level:u3}] {Message:lj} {NewLine}",
                            rollingInterval: RollingInterval.Day,
                            rollOnFileSizeLimit: true,
                            encoding: Encoding.UTF8,
                            retainedFileCountLimit: 20,
                            fileSizeLimitBytes: 1024 * 2048))
                .WriteTo.Logger(lc => lc
                    .Filter.ByIncludingOnly(v => v.Level == Serilog.Events.LogEventLevel.Information)
                    .WriteTo.File(
                           Path.Combine(basepath, "info-.txt"),
                            //outputTemplate: @"{Timestamp:yyyy-MM-dd HH:mm-dd } [{Level:u3}] {Message:lj} {NewLine}",
                            rollingInterval: RollingInterval.Day,
                            rollOnFileSizeLimit: true,
                            encoding: Encoding.UTF8,
                            retainedFileCountLimit: 20,
                            fileSizeLimitBytes: 1024 * 2048))

                 .WriteTo.Logger(lc => lc
                    .Filter.ByIncludingOnly(v => v.Level == Serilog.Events.LogEventLevel.Warning)
                    .WriteTo.File(
                           Path.Combine(basepath, "warning-.txt"),
                            //outputTemplate: @"{Timestamp:yyyy-MM-dd HH:mm-dd } [{Level:u3}] {Message:lj} {NewLine}",
                            rollingInterval: RollingInterval.Day,
                            rollOnFileSizeLimit: true,
                            encoding: Encoding.UTF8,
                            retainedFileCountLimit: 20,
                            fileSizeLimitBytes: 1024 * 2048))

                  .WriteTo.Logger(lc => lc
                    .Filter.ByIncludingOnly(v => v.Level == Serilog.Events.LogEventLevel.Debug)
                    .WriteTo.File(
                             Path.Combine(basepath, "debug-.txt"),
                             //outputTemplate: @"{Timestamp:yyyy-MM-dd HH:mm-dd } [{Level:u3}] {Message:lj} {NewLine}",
                             rollingInterval: RollingInterval.Day,
                             rollOnFileSizeLimit: true,
                             encoding: Encoding.UTF8,
                             retainedFileCountLimit: 20,
                             fileSizeLimitBytes: 1024 * 2048))

                .WriteTo.Logger(lc => lc
                    .Filter.ByIncludingOnly(v => v.Level == Serilog.Events.LogEventLevel.Verbose)
                    .WriteTo.File(
                             Path.Combine(basepath, "verbose-.txt"),
                             //outputTemplate: @"{Timestamp:yyyy-MM-dd HH:mm-dd } [{Level:u3}] {Message:lj} {NewLine}",
                             rollingInterval: RollingInterval.Day,
                             rollOnFileSizeLimit: true,
                             encoding: Encoding.UTF8,
                             retainedFileCountLimit: 20,
                             fileSizeLimitBytes: 1024 * 2048))
                .CreateLogger();

            return logInstance;
        }

设置日志的最小输出等级

声明赋值后，在创建时的相关片段进行替换

        /// <summary>
        /// 改变系统Log的日志输出等级
        /// </summary>
        public LoggingLevelSwitch LogLevelSwith { get; private set; }
        
        //设置最小的日志输出等级
  		.MinimumLevel.ControlledBy(LogLevelSwith )

测试结果