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(ILogHelperLoggingEnricher enricher); /// <summary> /// Add logs filter /// </summary> /// <param name="filterFunc">filterFunc, logProviderType/categoryName/Exception, whether to write log</param> bool AddFilter(Func<Type, string, LogHelperLogLevel, Exception, bool> filterFunc); ///// <summary> ///// config period batching ///// </summary> ///// <param name="period">period</param> ///// <param name="batchSize">batchSize</param> //void PeriodBatchingConfig(TimeSpan period, int batchSize); /// <summary> /// Build for LogFactory /// </summary> /// <returns></returns> ILogHelperFactory Build(); }

增加 logging 的配置：

public static class LogHelper { private static ILogHelperFactory LogFactory { get; private set; } = NullLogHelperFactory.Instance; public static void ConfigureLogging(Action<ILogHelperLoggingBuilder> configureAction) { var loggingBuilder = new LogHelperLoggingBuilder(); configureAction?.Invoke(loggingBuilder); LogFactory = loggingBuilder.Build(); } public static ILogHelperLogger GetLogger<T>() => LogFactory.GetLogger(typeof(T)); public static ILogHelperLogger GetLogger(Type type) => LogFactory.GetLogger(type); public static ILogHelperLogger GetLogger(string categoryName) { return LogFactory.CreateLogger(categoryName); } }

最后的使用方式：

internal class LoggingTest { private static readonly ILogHelperLogger Logger = LogHelper.GetLogger<LoggingTest>(); public static void MainTest() { var abc = "1233"; LogHelper.ConfigureLogging(builder => { builder .AddLog4Net() //.AddSerilog(loggerConfig => loggerConfig.WriteTo.Console()) .WithMinimumLevel(LogHelperLogLevel.Info) .WithFilter((category, level) => level > LogHelperLogLevel.Error && category.StartsWith("System")) .EnrichWithProperty("Entry0", ApplicationHelper.ApplicationName) .EnrichWithProperty("Entry1", ApplicationHelper.ApplicationName, e => e.LogLevel >= LogHelperLogLevel.Error)// 当 LogLevel 是 Error 及以上级别时才增加 Property ; }); Logger.Debug("12333 {abc}", abc); Logger.Trace("122334334"); Logger.Info($"122334334 {abc}"); Logger.Warn("12333, err:{err}", "hahaha"); Logger.Error("122334334"); Logger.Fatal("12333"); } }

More#

增加 LoggingEvent 还想做一个批量提交日志，如上面定义的 PeriodBatchingConfig 一样，批量同步到 Provider 但是实际使用下来，有些 provider 不支持设置日志的时间，时间是内部记录的，这样一来日志记录的时间就不准了，而且大多都不支持批量写日志，所以后面放弃了，但是如果只是用自己的扩展，不用 log4net 之类的外部的日志框架的话，我觉得还是可以做的，可以提高效率，目前主要用 Serilog 和 log4net，暂时不更新了，就先这样吧

下一版本要解决的事情

• ILogProvider 记录日志返回一个 Task 感觉有些鸡肋，没太大意义，后面再改一下吧
• Serilog 的 Filter 是基于 LogEvent 的，后面看是否需要改一下，基于 LogEvent 的话更简洁，而且可以根据 LogEvent 内的 Properties 做过滤，所以 AddFilter 的API 可以更新一下 AddFilter(Func<LogHelperLoggingEvent, bool> filter)

Reference#

• https://github.com/serilog/serilog
• https://github.com/serilog/serilog-sinks-periodicbatching
• https://github.com/aspnet/Logging
• https://github.com/aspnet/Extensions/tree/master/src/Logging
• https://github.com/WeihanLi/WeihanLi.Common/tree/dev/src/WeihanLi.Common/Logging