1、在配置文件appsettings.json里新增AppSettings节点

{  "Logging": {    "LogLevel": {      "Default": "Warning"    }  },  "AppSettings": {    "HttpUrl": "http://www.ehongcn.com",    "Copyright": "山南远宏科技有限公司"  },  "AllowedHosts": "*"}

2、新建实体类AppSettings，通常建在公共类库Common里

public class AppSettings    {        public string HttpUrl { get; set; }        public string Copyright { get; set; }    }

3、在Startup类里的ConfigureServices配置

services.Configure
     
      (Configuration.GetSection("AppSettings"));
     

4、控制器或者业务类里使用

private readonly AppSettings _appSettings;        public HomeController(IOptions
     
       appSettings)        {            _appSettings = appSettings.Value;        }        public IActionResult Index()        {            ViewData["Url"] = _appSettings.HttpUrl;            return View();        }
     

5、页面上使用

@using Microsoft.Extensions.Options;@using Demo.Common@inject IOptions
     
       Settings@{    ViewData["Title"] = "Privacy Policy";}
      
@ViewData["Title"]
      
版权所属有 @Settings.Value.Copyright.