ASP.NET Core使用IConfiguration获取Json数组 [英] ASP.NET Core Get Json Array using IConfiguration
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
In Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddSingleton<IConfiguration>(Configuration);
}
在HomeController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,我为空 如何获得数组?
There are my codes above, I got null How to get the array?
推荐答案
如果要选择第一项的值,则应该这样做-
If you want to pick value of first item then you should do like this-
var item0 = _config.GetSection("MyArray:0");
如果要选择整个数组的值,则应该这样做-
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,您应该考虑使用选项文件,由官方文档建议.这将为您带来更多好处.
Ideally, you should consider using options pattern suggested by official documentation. This will give you more benefits.
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