1、.NET Core 2.0项目中安装引用NLog相关依赖
1)使用Nuget界面管理器
搜索"NLog.Extensions.Logging"
,在列表中找到它,点击"安装"
,在分别搜索"NLog"
、"Microsoft.Extensions.DependencyInjection"
和“Microsoft.Extensions.Configuration.Json”
,然后在点击"安装"
。
相关文档:VS(Visual Studio)中Nuget的使用
2)使用Package Manager命令安装
PM> Install-Package NLog.Extensions.Logging
PM> Install-Package NLog
PM> Install-Package Microsoft.Extensions.DependencyInjection
PM> Install-Package Microsoft.Extensions.Configuration.Json
3)使用.NET CLI命令安装
> dotnet add TodoApi.csproj package NLog.Extensions.Logging
> dotnet add TodoApi.csproj package NLog
> dotnet add TodoApi.csproj package Microsoft.Extensions.DependencyInjection
> dotnet add TodoApi.csproj package Microsoft.Extensions.Configuration.Json
4) 修改csproj文件
2、创建nlog.config配置文件
在应用程序项目的根目录中创建nlog.config(全部小写)文件(文件属性:始终复制):
在项目根目录创建nlog.config配置文件,内容如下:
或者
相关文档:https://github.com/NLog/NLog/wiki/Configuration-file
3、修改.NET Core 2.0项目代码
1) 创建runner class
public class Runner
{
private readonly ILogger_logger;
public Runner(ILoggerlogger)
{
_logger = logger;
}
public void DoAction(string name)
{
_logger.LogDebug(20, "Doing hard work! {Action}", name);
}
}
2) 配置依赖注入(DI:Dependency injector)container
private static IServiceProvider BuildDi(IConfiguration config){ return new ServiceCollection() .AddTransient() // Runner is the custom class .AddLogging(loggingBuilder => { // configure Logging with NLog loggingBuilder.ClearProviders(); loggingBuilder.SetMinimumLevel(Microsoft.Extensions.Logging.LogLevel.Trace); loggingBuilder.AddNLog(config); }) .BuildServiceProvider();}
3) 引用所需的命名空间
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using NLog;
using NLog.Extensions.Logging;
4) 修改main()方法
创建DI container,获取到Runner实例并运行:
static void Main(string[] args){ var logger = LogManager.GetCurrentClassLogger(); try { var config = new ConfigurationBuilder() .SetBasePath(System.IO.Directory.GetCurrentDirectory()) //From NuGet Package Microsoft.Extensions.Configuration.Json .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true) .Build(); var servicesProvider = BuildDi(config); using (servicesProvider as IDisposable) { var runner = servicesProvider.GetRequiredService(); runner.DoAction("Action1"); Console.WriteLine("Press ANY key to exit"); Console.ReadKey(); } } catch (Exception ex) { // NLog: catch any exception and log it. logger.Error(ex, "Stopped program because of exception"); throw; } finally { // Ensure to flush and stop internal timers/threads before application-exit (Avoid segmentation fault on Linux) LogManager.Shutdown(); }}
相关文档:
Getting-started-with-.NET-Core-2---Console-application
ASP.NET Core 3.0安装配置使用NLog的方法及示例代码
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.NET Core 2.0 Console(控制台)项目 Microsoft.Extensions.Logging nlog配置使用
https://github.com/NLog/NLog/wiki/Getting-started-with-ASP.NET-Core-3