步骤一：
Nuget导入配置包
ConfigurationBuilder："Microsoft.Extensions.Configuration"
AddJsonFile："Microsoft.Extensions.Configuration.Json"
步骤二：
创建Student实体类
public class Student
{
public string Name { get; set; }
public string Age { get; set; }
}
步骤三：
更改配置文件appsettings.json文件内容
{
"Student": {
"Name": "张三",
"Age": "24"
}
}
步骤四：
修改Program 主程序，重新设置UseConfiguration
public class Program
{
public static void Main(string[] args)
{
BuildWebHost(args).Run();
}
public static IWebHost BuildWebHost(string[] args) =>
WebHost.CreateDefaultBuilder(args)
.UseConfiguration(//此处增加
new ConfigurationBuilder()
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
.Build()
)
.UseStartup<Startup>()
.Build();
}
步骤五：
修改Startup——> ConfigureServices 通过Configure注入属性
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddOptions().Configure<Student>(Configuration.GetSection(nameof(Student)));
services.AddMvc();
}
步骤六：
HomeController 中使用Student实体
IOptions<Student> _student;
public HomeController(IOptions<Student> student)
{
_student = student;
}
public IActionResult Index()
{
return View(_student.Value);
}
