這篇文章主要給大家介紹了在ASP.NET core Web中使用appsettings.json設定檔的方法,文中給出了詳細的範例程式碼,需要的朋友可以參考學習,下面來一起看看吧。
前言
最近在研究把asp.net程式移植到linux上,正好.net core出來了,就進行了學習。
移植代碼基本順利,但是發現.net core中沒有ConfigurationManager,無法讀寫設定檔,單獨寫個xml之類的嫌麻煩,就Google了下,發現了個方法,遂記錄如下,方便以後尋找:
方法如下
設定檔結構
public class DemoSettings{ public string MainDomain { get; set; } public string SiteName { get; set; }}
appsettings.json中顯示效果
appsettings.json
{ "DemoSettings": { "MainDomain": "http://www.mysite.com", "SiteName": "My Main Site" }, "Logging": { "IncludeScopes": false, "LogLevel": { "Default": "Debug", "System": "Information", "Microsoft": "Information" } }}
配置Services
原配置
public void ConfigureServices(IServiceCollection services){ // Add framework services. services.AddMvc();}
自訂
public void ConfigureServices(IServiceCollection services){ // Add framework services. services.AddMvc(); // Added - uses IOptions<T> for your settings. services.AddOptions(); // Added - Confirms that we have a home for our DemoSettings services.Configure<DemoSettings>(Configuration.GetSection("DemoSettings"));}
然後把設定注入進相應的Controller後就可以使用了
public class HomeController : Controller{ private DemoSettings ConfigSettings { get; set; } public HomeController(IOptions<DemoSettings> settings) { ConfigSettings = settings.Value; } public IActionResult Index() { ViewData["SiteName"] = ConfigSettings.SiteName; return View(); }}
總結