日志组件Serilog使用

NuGet 安装 Serilog

核心的包是 Serilog 和 Serilog.AspNetCore
建议安装 Serilog.AspNetCore，几乎包含了Serilog常用的所有包
异步写入 Serilog.Sinks.Async
写入MSSQL Serilog.Sinks.MSSqlServer

Install-Package Serilog.AspNetCore
Install-Package Serilog # winform 安装
Install-Package Serilog.Sinks.Async
Install-Package Serilog.Sinks.MSSqlServer

日志输出控制台

  public static void Test1()
        {           
            Log.Logger = new LoggerConfiguration()
                        .WriteTo.Console()  //输出到控制台
                        .CreateLogger();

            Log.Information("Info输出到控制台测试！");
            Log.Debug("Debug输出控制台测试！");
            Log.Error("Error错误信息输出");
            Log.Warning("Warning警告信息输出");
        }

日志输出到文件

   public static  void Test2()
        {
            /*
            WriteTo.File详解
                path：默认路径是程序的bin目录+path参数，当然也可以写绝对路径，只需要写入参数就可以了
                rollingInterval：创建文件的类别，可以是分钟，小时，天，月。 此参数可以让创建的log文件名 + 时间。例如log20191219.log
                outputTemplate：日志模板，可以自定义
                retainedFileCountLimit：设置日志文件个数最大值，默认31，意思就是只保留最近的31个日志文件,等于null时永远保留文件
             */


            //同步输出到本地文件
            //日志模板
            string SerilogOutputTemplate = "{NewLine}{NewLine}Date：{Timestamp:yyyy-MM-dd HH:mm:ss.fff}{NewLine}LogLevel：{Level}{NewLine}Message：{Message}{NewLine}{Exception}" + new string('-', 100);

            Log.Logger = new LoggerConfiguration()
              .MinimumLevel.Debug() // 所有Sink的最小记录级别
              .WriteTo.Console()    //输出到控制台
              .WriteTo.File("Logs\\log.log", //$"{AppContext.BaseDirectory}Logs\log.log"
                            rollingInterval: RollingInterval.Day,
                            outputTemplate: SerilogOutputTemplate
                            , retainedFileCountLimit: 31
                            )
              .CreateLogger();

            Log.Information("Info输出到控制台测试！");
            Log.Debug("Debug输出控制台测试！");
            Log.Error("Error错误信息输出");
            Log.Warning("Warning警告信息输出");



            //异步输出到本地文件
            Log.Logger = new LoggerConfiguration()
         .WriteTo.Async(a => a.File("Logs\\log.log", rollingInterval: RollingInterval.Day))
         .CreateLogger();

            Log.Information("Info异步输出到控制台测试！");
            Log.Debug("Debug异步输出控制台测试！");
            Log.Error("Error异步错误信息输出");
            Log.Warning("Warning异步警告信息输出");

            Log.CloseAndFlush();

        }

日志分等级输出到文件

     public static void Test3()
        {
            string LogFilePath(string LogEvent) => $@"{AppContext.BaseDirectory}Logs\{LogEvent}\log.log";
            string SerilogOutputTemplate = "{NewLine}{NewLine}Date：{Timestamp:yyyy-MM-dd HH:mm:ss.fff}{NewLine}LogLevel：{Level}{NewLine}Message：{Message}{NewLine}{Exception}" + new string('-', 50);

            Log.Logger = new LoggerConfiguration()
.Enrich.FromLogContext()
.WriteTo.Console()
.MinimumLevel.Verbose() // 所有Sink的最小记录级别
.WriteTo.Logger(lg => lg.Filter.ByIncludingOnly(p => p.Level == LogEventLevel.Debug).WriteTo.File(LogFilePath("Debug"), rollingInterval: RollingInterval.Day, outputTemplate: SerilogOutputTemplate))
.WriteTo.Logger(lg => lg.Filter.ByIncludingOnly(p => p.Level == LogEventLevel.Information).WriteTo.File(LogFilePath("Information"), rollingInterval: RollingInterval.Day, outputTemplate: SerilogOutputTemplate))
.WriteTo.Logger(lg => lg.Filter.ByIncludingOnly(p => p.Level == LogEventLevel.Warning).WriteTo.File(LogFilePath("Warning"), rollingInterval: RollingInterval.Day, outputTemplate: SerilogOutputTemplate))
.WriteTo.Logger(lg => lg.Filter.ByIncludingOnly(p => p.Level == LogEventLevel.Error).WriteTo.File(LogFilePath("Error"), rollingInterval: RollingInterval.Day, outputTemplate: SerilogOutputTemplate))
.WriteTo.Logger(lg => lg.Filter.ByIncludingOnly(p => p.Level == LogEventLevel.Fatal).WriteTo.File(LogFilePath("Fatal"), rollingInterval: RollingInterval.Day, outputTemplate: SerilogOutputTemplate))
.CreateLogger();


            Log.Information("Info输出到控制台测试！");
            Log.Debug("Debug输出控制台测试！");
            Log.Error("Error错误信息输出");
            Log.Fatal("Fatal致命错误日志输出");
            Log.Warning("Warning警告信息输出");
        }

日志输出到数据库

     public static void Test4()
        {
            try
            {
                string connectionString = @"Server=127.0.0.1\MSSQLSERVER19;Initial Catalog=RW_TEST;User ID=sa;Password=123456"; 
                string tableNameA = "LogsA";
                string tableNameB = "LogsB";
                string tableNameC = "LogsC";
                static void Write()
                {
                    Log.Information("测试信息");
                    Log.Error("Error");
                    Log.Write(LogEventLevel.Error, new Exception("错误"), "致命错误");
                };

                //A:默认配置
                //autoCreateSqlTable为true 时 会自动创建日志表
                Log.Logger = new LoggerConfiguration().WriteTo.MSSqlServer(connectionString, tableNameA, autoCreateSqlTable: true).CreateLogger();
                Write();

                //B:移除列
                var options = new ColumnOptions();
                options.Store.Remove(StandardColumn.Properties);
                options.Store.Remove(StandardColumn.MessageTemplate);
                Log.Logger = new LoggerConfiguration()
                             .WriteTo.MSSqlServer(connectionString, tableNameB, columnOptions: options, autoCreateSqlTable: true)
                             .CreateLogger();
                Write();

                //C:添加自定义列
                options = new ColumnOptions();
                options.AdditionalColumns = new Collection<SqlColumn>
                {
                    new SqlColumn { DataType = SqlDbType.NVarChar, DataLength =-1, ColumnName = "IP" },
                    new SqlColumn { DataType = SqlDbType.NVarChar, DataLength =-1, ColumnName = "IP2" }
                };
                Log.Logger = new LoggerConfiguration()
                                 .Enrich.WithProperty("IP", "8.8.8.8")
                                 .Enrich.WithProperty("IP2", "9.9.9.9")
                                 .WriteTo.MSSqlServer(connectionString, tableNameC, columnOptions: options, autoCreateSqlTable: true)
                                 .CreateLogger();
                Write();
                Console.WriteLine("Hello World!");
            }
            catch (Exception ex )
            {

                throw;
            }
            
        }