IConfiguration不包含GetValue的定义 [英] IConfiguration does not contain a definition for GetValue

问题描述

在类中移动IConfiguration方法之一后，GetValue<T>停止工作.用法是这样的:

After moving a class through projects one of the IConfiguration methods, GetValue<T> stopped working. The usage is like this:

using Newtonsoft.Json;
using System;
using System.Net;
using System.Text;
using Microsoft.Extensions.Configuration;

namespace Company.Project.Services
{
    public class MyService
    {
        private readonly IConfiguration _configuration;

        public string BaseUri => _configuration.GetValue<string>("ApiSettings:ApiName:Uri") + "/";

        public MyService(
            IConfiguration configuration
        )
        {
            _configuration = configuration;
        }
    }
}

推荐答案

只需安装Microsoft.Extensions.Configuration.Binder，该方法将可用.

Just install Microsoft.Extensions.Configuration.Binder and the method will be available.

原因是GetValue<T>是

The reason is that GetValue<T> is an extension method and does not exists directly in the IConfiguration interface.

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