.NET Core创建一个控制台（Console）程序

{
 "version": "1.0.0-",
 "buildOptions": {
  "emitEntryPoint": true
 },

 "dependencies": {
  "Microsoft.NETCore.App": {
   "type": "platform",
   "version": "1.0.0-rc2-3002702"
  },
  "Microsoft.Extensions.DependencyInjection": "1.0.0-rc2-final",
  "Microsoft.Extensions.Logging": "1.0.0-rc2-final",
  "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-final",
  "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-final",
  "System.Text.Encoding": "4.0.11-rc2-24027",
  "System.Text.Encoding.CodePages": "4.0.1-rc2-24027"
 },

 "frameworks": {
  "coreapp1.0": {
   "imports": "dnxcore50"
  }
 }
}

{
 "IncludeScopes": false,
 "LogLevel": {
  "App": "Warning"
 }
}

using System;
using Microsoft.Extensions.Configuration;
using System.Text;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;

namespace ConsoleLogApp
{
  public class Program
  {
    public static void Main(string[] args)
    {
      // 支持中文编码
      Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);

      // 加载日志配置文件
      var setttins = new ConfigurationBuilder().AddJsonFile("log.json").Build();

      // 创建ConsoleLogProvider并根据日志类目名称（CategoryName）生成Logger实例
      var logger = new ServiceCollection().AddLogging().BuildServiceProvider().GetService<ILoggerFactory>().AddConsole(setttins).CreateLogger("App");

      // 设置事件ID
      const int eventId = 888888;

      // 输出正常提示日志
      logger.LogInformation(eventId, "订单号（{OderNo}）", "12345678000");

      // 输出警示日志
      logger.LogWarning(eventId, "待处理订单数达到5分钟内的预警值{max}", 2000);

      // 输出错误日志
      logger.LogError(eventId, "数据库连接超时");

      Console.ReadLine();
    }
  }
}