在appsettings.json
{
"MyArray": [
"str1",
"str2",
"str3"
]
}
在Startup.cs
public void ConfigureServices(IServiceCollection services)
{
services.AddSingleton<IConfiguration>(Configuration);
}
在HomeController
public class HomeController : Controller
{
private readonly IConfiguration _config;
public HomeController(IConfiguration config)
{
this._config = config;
}
public IActionResult Index()
{
return Json(_config.GetSection("MyArray"));
}
}
上面是我的代码。结果是零。
如何获取数组?
你可以像这样使用Microsoft.Extensions.Configuration.Binder包:
在你的appsettings.json中
{
"MyArray": [
"str1",
"str2",
"str3"
]
}
创建保存配置的对象:
public class MyConfig
{
public List<string> MyArray { get; set; }
}
在你的控制器绑定配置:
public class HomeController : Controller
{
private readonly IConfiguration _config;
private readonly MyConfig _myConfig = new MyConfig();
public HomeController(IConfiguration config)
{
_config = config;
}
public IActionResult Index()
{
return Json(_config.Bind(_myConfig));
}
}
从appsettings.json中获取所有section的所有值
public static string[] Sections = { "LogDirectory", "Application", "Email" };
Dictionary<string, string> sectionDictionary = new Dictionary<string, string>();
List<string> sectionNames = new List<string>(Sections);
sectionNames.ForEach(section =>
{
List<KeyValuePair<string, string>> sectionValues = configuration.GetSection(section)
.AsEnumerable()
.Where(p => p.Value != null)
.ToList();
foreach (var subSection in sectionValues)
{
sectionDictionary.Add(subSection.Key, subSection.Value);
}
});
return sectionDictionary;
.Net Core 7.x中处理对象的不同方法
在appsettings.json:
{
"People": [
{ "FirstName": "Glen", "LastName": "Johnson", "Age": 30 },
{ "FirstName": "Matt", "LastName": "Smith", "Age": 40 },
{ "FirstName": "Fred", "LastName": "Williams", "Age": 50 }
]
}
Person类:
public class Person
{
public string FirstName { get; set; }
public string LastName { get; set; }
public int Age { get; set; }
}
在代码中:
var appConfig = App.Current.AppConfiguration; // Or could be passed in through DI
var children = appConfig.GetSection("People")
.GetChildren()
.ToList();
var people = new List<Person>();
foreach (var child in children)
{
var rec = new Person
{
FirstName = appConfig[$"{child.Path}:FirstName"],
LastName = appConfig[$"{child.Path}:LastName"],
Age = int.Parse(appConfig[$"{child.Path}:Age"]),
};
people.Add(rec);
}