ASP.NET Core2.0项目实战-005

配置

controller

using Microsoft.AspNetCore.Mvc; using Microsoft.Extensions.Configuration; using Microsoft.Extensions.Options; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Threading.Tasks; namespace KevinTest001.Controllers { //属于整一个对象 public class ConfigController : Controller { private MyOprations myOprations; public ConfigController(IOptions<MyOprations> options) { myOprations = options.Value; } public IActionResult Index() { ConfigurationBuilder configurationBuilder = new ConfigurationBuilder(); //加载配置文件 configurationBuilder.SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json"); var configuration = configurationBuilder.Build(); string connectString = configuration.GetConnectionString("DefaultConnection"); // return View(); //http://localhost:49609/Config/index var name = configuration.GetValue<string>("name"); var name2 = configuration["name"]; var name3 = configuration["person:age"]; var name4 = configuration["person1:0:age"]; var name5 = configuration["person2:0:age:0:abc"]; //return Content(connectString); //return Content(name4); return Content(myOprations.name); } } }

appsettings.json

//{ // "Logging": { // "LogLevel": { // "Default": "Warning" // } // }, // "AllowedHosts": "*" //} { "ConnectionStrings": { "DefaultConnection": "Server=(Lovaldb)\\SQLEXPRESS;Database=ILPF ;Trusted_Connection=True;MultipleActiveResultSets=true" }, "name": "Kevin", "person0": { "age": 20, "name": "Tom" }, "person1": [ { "age": 20, "name": "Tom" }, { "age": 20, "name": "Tom" } ], "person2": [ { "age": [ { "abc": 20 } ], "name": "Tom" }, { "age": 20, "name": "Tom" } ], "person": { "name": "John", "age":20 } }