• Serilog 记录日志


    从 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
    Install-Package Serilog.Sinks.Async
    Install-Package Serilog.Sinks.MSSqlServer

    日志输出

    输出到控制台

     1 using Serilog;
     2 using System;
     3 using System.Collections.Generic;
     4 using System.ComponentModel;
     5 using System.IO;
     6 using System.Linq;
     7 
     8 namespace NetCoreConsoleApp
     9 {
    10     class Program
    11     {
    12         static void Main(string[] args)
    13         {
    14             Log.Logger = new LoggerConfiguration()
    15             .WriteTo.Console()  //输出到控制台
    16             .CreateLogger();
    17 
    18             Log.Information("log");
    19 
    20         }
    21  
    22 
    23     }
    24 }

    输出到本地日志文件

    WriteTo.File详解(日志默认路径为当前程序路径)

         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文件名默认 + 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

     1 using Serilog;
     2 using System;
     3 using System.Collections.Generic;
     4 using System.ComponentModel;
     5 using System.IO;
     6 using System.Linq;
     7 
     8 namespace NetCoreConsoleApp
     9 {
    10     class Program
    11     {
    12         static void Main(string[] args)
    13         {
    14             /*
    15             WriteTo.File详解 
    16                 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
    17                 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
    18                 outputTemplate:日志模板,可以自定义
    19                 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
    20              */
    21 
    22 
    23             string SerilogOutputTemplate = "{NewLine}{NewLine}Date:{Timestamp:yyyy-MM-dd HH:mm:ss.fff}{NewLine}LogLevel:{Level}{NewLine}Message:{Message}{NewLine}{Exception}" + new string('-', 100);
    24 
    25             Log.Logger = new LoggerConfiguration()
    26               .MinimumLevel.Debug() // 所有Sink的最小记录级别
    27               .WriteTo.Console()    //输出到控制台
    28               .WriteTo.File("00_Logs\log.log", //$"{AppContext.BaseDirectory}00_Logslog.log"
    29                             rollingInterval: RollingInterval.Day,
    30                             outputTemplate: SerilogOutputTemplate
    31                             //,retainedFileCountLimit: 31
    32                             )
    33               .CreateLogger();
    34             Log.Information("log");
    35         }
    36     }
    37 }

    输出到本地日志文件(异步)

    需要Serilog.Sinks.Async包,github详解路径:https://github.com/serilog/serilog-sinks-async

     1 using Serilog;
     2 
     3 namespace NetCoreConsoleApp
     4 {
     5     class Program
     6     {
     7         static void Main(string[] args)
     8         {
     9             //github详解路径:https://github.com/serilog/serilog-sinks-async
    10 
    11             Log.Logger = new LoggerConfiguration()
    12           .WriteTo.Async(a => a.File("00_Logs\log.log", rollingInterval: RollingInterval.Day))
    13           .CreateLogger();
    14             Log.Information("log");
    15             Log.CloseAndFlush();
    16         }
    17     }
    18 }

    不同的日志级别输出到不同的文件夹下

    using Serilog;
    using Serilog.Events;
    using System;
    
    namespace NetCoreConsoleApp
    {
        class Program
        {
            static void Main(string[] args)
            {
                string LogFilePath(string LogEvent) => $@"{AppContext.BaseDirectory}00_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.Debug() // 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("log");
                Log.Error("log");
            }
        }
    }

    输出到MSSQL 

    需要Serilog.Sinks.MSSqlServer包github详解路径:https://github.com/serilog/serilog-sinks-mssqlserver

    参考链接:https://www.cnblogs.com/lonelyxmas/p/11980881.html

    using Serilog;
    using Serilog.Events;
    using Serilog.Sinks.MSSqlServer;
    using System;
    using System.Collections.ObjectModel;
    using System.Data;
    
    namespace ConsoleApp1
    {
        class Program
        {
            static void Main(string[] args)
            {
    
    
                string connectionString = @"Server=....";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!");
                Console.ReadKey();
    
            }
        }
    }

     

     ASP.NET Core 中使用 Serilog

    参考链接:https://www.cnblogs.com/MaleDeer/p/10797509.html

    在Program.cs程序启动时注入Serilog 加载配置

    using System;
    using Microsoft.AspNetCore.Hosting;
    using Microsoft.Extensions.Hosting;
    using Serilog;
    
    namespace WebApplication1
    {
        public class Program
        {
            public static void Main(string[] args)
            {
    
                Log.Logger = new LoggerConfiguration()
                 .MinimumLevel.Debug()
                 .WriteTo.Console()
                 .WriteTo.File($"{AppContext.BaseDirectory}00_Logs\log.log", rollingInterval: RollingInterval.Day)
                 .CreateLogger();
    
                try
                {
                    Log.Information("Starting up");
                    CreateHostBuilder(args).Build().Run();
                }
                catch (Exception ex)
                {
                    Log.Fatal(ex, "Application start-up failed");
                }
                finally
                {
                    Log.CloseAndFlush();
                }
            }
    
            public static IHostBuilder CreateHostBuilder(string[] args) =>
                Host.CreateDefaultBuilder(args)
                    .ConfigureWebHostDefaults(webBuilder =>
                    {
                        webBuilder.UseStartup<Startup>();
                    })
                .UseSerilog();
        }
    }

    或者

    using System;using Microsoft.AspNetCore.Hosting;
    using Microsoft.Extensions.Hosting;
    using Serilog;
    
    namespace WebApplication1
    {
        public class Program
        {
            public static void Main(string[] args)
            {
                CreateHostBuilder(args).Build().Run();
    
            }
    
            public static IHostBuilder CreateHostBuilder(string[] args) =>
                Host.CreateDefaultBuilder(args)
                    .ConfigureWebHostDefaults(webBuilder =>
                    {
                        webBuilder.UseStartup<Startup>();
                        webBuilder.UseSerilog((hostingContext, loggerConfiguration) =>
                        {
                            loggerConfiguration
                           .ReadFrom.Configuration(hostingContext.Configuration)
                           .Enrich.FromLogContext()
                           .WriteTo.File($"{AppContext.BaseDirectory}00_Logs\log.log", rollingInterval: RollingInterval.Day)
                           .WriteTo.Console();
                        });
                    });
        }
    }

    使用 Serilog 时,直接使用 ILogger 即可,因为此服务项目应该是默认注入了,此处需要依赖关系注入知识。如你不了解依赖关系注入,请看 微软官方文档

    using System.Collections.Generic;
    using Microsoft.AspNetCore.Mvc;
    using Microsoft.Extensions.Logging;
    
    namespace WebApplication1.Controllers
    {
        [Route("api/[controller]")]
        [ApiController]
        public class ValuesController : ControllerBase
        {
            private readonly ILogger<ValuesController> _logger;
    
            public ValuesController(ILogger<ValuesController> logger)
            {
                _logger = logger;
            }
    
            // GET api/values
            [HttpGet]
            public ActionResult<IEnumerable<string>> Get()
            {
                _logger.LogInformation("test info");
                return new string[] { "value1", "value2" };
            }
        }
    }

    相关链接 

     
     
     
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  • 原文地址:https://www.cnblogs.com/RainFate/p/12073662.html
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