本文介绍了ASP.NET Core 使用 IConfiguration 获取 Json 数组的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在 appsettings.json 中
In appsettings.json
{ "MyArray": [ "str1", "str2", "str3" ] }在 Startup.cs 中
In Startup.cs
public void ConfigureServices(IServiceCollection services) { services.AddSingleton<IConfiguration>(Configuration); }在家庭控制器中
In HomeController
public class HomeController : Controller { private readonly IConfiguration _config; public HomeController(IConfiguration config) { this._config = config; } public IActionResult Index() { return Json(_config.GetSection("MyArray")); } }上面有我的代码,我得到了空如何获取数组?
There are my codes above, I got null How to get the array?
推荐答案如果你想选择第一项的值,那么你应该这样做-
If you want to pick value of first item then you should do like this-
var item0 = _config.GetSection("MyArray:0");如果你想选择整个数组的值,那么你应该这样做-
If you want to pick value of entire array then you should do like this-
IConfigurationSection myArraySection = _config.GetSection("MyArray"); var itemArray = myArraySection.AsEnumerable();理想情况下,您应该考虑使用 官方文档建议的选项模式.这会给您带来更多好处.
Ideally, you should consider using options pattern suggested by official documentation. This will give you more benefits.
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ASP.NET Core 使用 IConfiguration 获取 Json 数组
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