26

我正在使用 Serilog 进行日志记录,但无法弄清楚如何将日志事件分隔到不同的文件中。例如,我想将错误记录到 error_log-ddmmyyyy.txt 并将警告记录到 warn_log-ddmmyyyy.txt。

这是我的记录器配置:

Log.Logger = new LoggerConfiguration()
            .WriteTo.Logger(lc =>
                lc.Filter.ByIncludingOnly(Matching.WithProperty("Level", "Warning"))
                    .WriteTo.RollingFile(
                        Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"Logs\warn_log-{Date}.txt"),
                        outputTemplate: OutputTemplate))
            .WriteTo.Logger(lc =>
                lc.Filter.ByIncludingOnly(Matching.WithProperty("Level", "Error"))
                    .WriteTo.RollingFile(
                        Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @"Logs\error_log-{Date}.txt"),
                        outputTemplate: OutputTemplate))
            .CreateLogger();

它仅在我在日志消息中明确指定 {Level} 属性时才有效。

我试图使用:

Matching.WithProperty<LogEventLevel>("Level", l => l == LogEventLevel.Warning)

但它也没有用。

4

5 回答 5

46

我使用以下配置,它适用于我:

            Log.Logger = new LoggerConfiguration()
                    .MinimumLevel.Debug()
                    .WriteTo.LiterateConsole()
                    .WriteTo.Logger(l => l.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Information).WriteTo.RollingFile(@"Logs\Info-{Date}.log"))
                    .WriteTo.Logger(l => l.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Debug      ).WriteTo.RollingFile(@"Logs\Debug-{Date}.log"))
                    .WriteTo.Logger(l => l.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Warning    ).WriteTo.RollingFile(@"Logs\Warning-{Date}.log"))
                    .WriteTo.Logger(l => l.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Error      ).WriteTo.RollingFile(@"Logs\Error-{Date}.log"))
                    .WriteTo.Logger(l => l.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Fatal      ).WriteTo.RollingFile(@"Logs\Fatal-{Date}.log"))
                    .WriteTo.RollingFile(@"Logs\Verbose-{Date}.log")
                    .CreateLogger();
于 2016-10-07T06:36:23.660 回答
20

我认为你需要:

.ByIncludingOnly(evt => evt.Level == LogEventLevel.Warning)

编辑:

在许多情况下,现在使用Serilog.Sinks.Map更加简洁。有了它,例子可以写成:

Log.Logger = new LoggerConfiuration()
    .WriteTo.Map(
        evt => evt.Level,
        (level, wt) => wt.RollingFile("Logs\\" + level + "-{Date}.log"))
    .CreateLogger();
于 2015-02-05T00:20:02.880 回答
3

通常对于我的用例,我需要多个日志,每个日志都包含一个最低级别。这样我以后可以更有效地调查日志。

对于 Serilog 的更新版本,我建议使用这个:

Log.Logger = new LoggerConfiuration()
    .MinimumLevel.Debug()
    .WriteTo.File(path: "debug.log", rollingInterval: RollingInterval.Day)
    .WriteTo.File(path: "info.log", restrictedToMinimumLevel: LogEventLevel.Information, rollingInterval: RollingInterval.Day)
    .WriteTo.File(path: "error.log",restrictedToMinimumLevel: LogEventLevel.Error, rollingInterval: RollingInterval.Day)
    .WriteTo.Console(restrictedToMinimumLevel: LogEventLevel.Warning)
    .CreateLogger();
于 2020-06-14T05:54:25.977 回答
0

另一种变体是在一个文件中包含 ERROR 和 FATAL(而不是在一个文件中包含错误,而在另一个文件中包含致命错误)。对我来说似乎有很多文件将它们分开。请记住,可以使用“或”运算符。

Log.Logger = new LoggerConfiguration()
    .WriteTo.File("logs\\all.log", rollingInterval: RollingInterval.Day)
    .WriteTo.Logger(
        x => x.Filter.ByIncludingOnly(y => y.Level == Serilog.Events.LogEventLevel.Error || y.Level == Serilog.Events.LogEventLevel.Fatal)
        .WriteTo.File("logs\\error.log", rollingInterval: RollingInterval.Day))
    .CreateLogger();
于 2019-09-17T17:47:23.547 回答
0
var dateTimeNowString = $"{DateTime.Now:yyyy-MM-dd_HH-mm-ss}";
Log.Logger = new LoggerConfiguration()
    .MinimumLevel.Debug()
    .MinimumLevel.Override("Microsoft", LogEventLevel.Warning)
    .WriteTo.Logger(
        x => x.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Error)
            .WriteTo.File($"Logs/{dateTimeNowString}-Error.log")
    )
    .WriteTo.Logger(
        x => x.Filter.ByIncludingOnly(e => e.Level == LogEventLevel.Warning)
            .WriteTo.File($"Logs/{dateTimeNowString}-Warning.log")
    )
    .WriteTo.File($"Logs/{dateTimeNowString}-All.log")
    .WriteTo.Console()
    .CreateLogger();

这些是我的 nuget 包:

    <PackageReference Include="Serilog.AspNetCore" Version="2.1.1" />
    <PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
    <PackageReference Include="Serilog.Sinks.File" Version="4.0.0" />
于 2019-06-19T06:14:29.643 回答