读取配置文件,appsettings.json和注入ICO

https://www.cnblogs.com/knowledgesea/p/7079880.html

引入Nuget的两个类库

Microsoft.Extensions.Configuration
Microsoft.Extensions.Configuration.Json

使用

var builder = new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json");
var configurationRoot = builder.Build();
var motherNameSection = configurationRoot.GetSection("mother").GetSection("name");

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如果我们要读取Bin的Value值，这样处于多层嵌套的json

只要在StartUp中加上这个-----》层级关系用"   :   "英文冒号隔开就是了

//注册appsetting的值
services.Configure<AppSetting>(_configuration.GetSection("Zhu:Kai"));