Asp.NetCore3.1 WebApi 获取配置json文件中的数据

下面只是做一个简单的测试：

1：定义好appsetting.Json文件的配置信息如下：

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "Appset01": {
    "name": "小张",
    "age": "18",
    "sex": "男"
  },
  "personnel": {
    "name": "小张",
    "addr": "湖南怀化",
    "books": [
      {
        "bookid": "b001",
        "bname": "西游记"
      },
      {
        "bookid": "b002",
        "bname": "水浒传"
      }
    ]
  },
  "AllowedHosts": "*"
}

2：根据内容获取或者设置实体来：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace WebApiDemo
{
    public class Appset01
    {
        public string name { get; set; }
        public string age { get; set; }
        public string sex { get; set; }
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace WebApiDemo
{
    public class Person
    {
        public string name { get; set; }
        public string addr { get; set; }
        public Book[] books { get; set; }
    }

    public class Book
    {
        public string bookid { get; set; }
        public string bname { get; set; }
    }
}

3：Startup内容中配置好服务信息：

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Options;

namespace WebApiDemo
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllers();
            services.Configure<Person>(Configuration.GetSection("personnel"));
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IWebHostEnvironment env,IOptions<Appset01>appOptions)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseAuthorization();


            app.UseEndpoints(endpoints =>
            {
                endpoints.MapControllers();
            });
        }
    }
}

4：在Controller中使用：

using System;
namespace WebApiDemo.Controllers
{
    using Microsoft.AspNetCore.Mvc;
    using Microsoft.Extensions.Configuration;
    using Microsoft.Extensions.Options;
    [ApiController]
    [Route("api/[controller]")]
    public class AppSetjsonController : ControllerBase
    {
        private IConfiguration _Configuration;
        public Person _person { get; set; }
        public Appset01 _jwtobj { get; set; }
        public AppSetjsonController(IConfiguration configuration, IOptions<Person> options)
        {
            this._Configuration = configuration;
            this._person = options.Value;
        }
        [HttpGet]
        [Route("getAppSetting")]
        public ApiResult<Appset01> getAppSetting()
        {
            ApiResult<Appset01> dic = new ApiResult<Appset01>();
            try
            {
                //BindNonPublicProperties 默认为false全部获取，true为不获取私有的字段
                dic.data = _Configuration.GetSection("Appset01").Get<Appset01>(c => c.BindNonPublicProperties = true);
                Console.WriteLine("addr=" + _person.addr + ",name=" + _person.name + ", book[0].name=" + _person.books[0].bname);
                dic.message = "获取成功！";
            }
            catch (Exception ex)
            {
                dic.message = "获取失败：" + ex.Message;
            }
            return dic;
        }
    }
}

5：查询的效果展示：

 6：获取自定义路径下的json配置文件信息

其他方法获取(下标)

  using Microsoft.Extensions.Configuration; 

 public IConfiguration _configuration { get; set; }
public BasisApiResult doJson(int index)
{
BasisApiResult result = new BasisApiResult();
List<Dictionary<string, string>> dict = new List<Dictionary<string, string>>();
_configuration.GetSection("OSS").Bind(dict);
dict[index].TryGetValue("AccessKeyId", out string qq);
Console.WriteLine("qq=" + qq);
result.data = qq;
return result;
}