ASP.NET Core 2.0系列学习笔记-配置文件

ASP.NET Core 2.0 配置文件：
应用程序的配置文件：appsettings.json，引用前端的包文件：bower.json，打包配置文件：bundleconfig.json。
ASP.NET Core 2.0 MVC下默认appsettings.json ：
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
}
}bundleconfig.json：// Configure bundling and minification for the project.
// More info at https://go.microsoft.com/fwlink/?LinkId=808241 [
{
"outputFileName": "wwwroot/css/site.min.css",
// An array of relative input file paths. Globbing patterns supported
"inputFiles": [
"wwwroot/css/site.css"
]
},
{
"outputFileName": "wwwroot/js/site.min.js",
"inputFiles": [
"wwwroot/js/site.js"
],
// Optionally specify minification options
"minify": {
"enabled": true,
"renameLocals": true
},
// Optionally generate .map file
"sourceMap": false
}
]
读取配置文件（appsettings.json ）

{
"connectionStrings": {
"conn": "Data Source=localhost;Initial Catalog=helloworld;Integrated Security=True"
},
"appSettings": {
"app_key": "helloworld",
"app_secret": "1234567890abcdef"
},
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
}
}

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration; //IConfigurationRoot ConfigurationBuilder
using Microsoft.Extensions.Logging;
using NLog;//NLog日志配置

namespace NETCoreNLog
{
public class Program
{
public static void Main(string[] args)
{
BuildWebHost(args).Run();
ConfigAndLog();
}

public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.Build();

public static IConfigurationRoot Configuration { get; set; }
public static Logger log = LogManager.GetCurrentClassLogger();
public static void ConfigAndLog()
{
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json");
Configuration = builder.Build();
string app_key = Configuration["appSettings:app_key"];
string conn = Configuration["connectionStrings:conn"];
log.Debug($"数据库连接为：{conn}");
}
}
}