c# - - - Service读取配置文件

参考：配置 - .NET | Microsoft Docs

1. 编辑项目文件

添加如下NuGet包

<PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="6.0.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="6.0.0" />

2.配置文件添加

appsettings.json文件

{
	"AccessKeyId": "abcdefghijklmnopqrst"
}

3.读取配置文件

在方法中添加

using Microsoft.Extensions.Configuration;

//读取配置文件
IConfiguration config = new ConfigurationBuilder()
    .AddJsonFile("appsettings.json")
    .AddEnvironmentVariables()
    .Build();
string AccessKeyId = config["AccessKeyId"];
string PostgreSQL= config.GetConnectionString("PostgreSQL");

扩展

static HomeClass()
{
    //读取配置文件
    IConfiguration config = new ConfigurationBuilder()
        .AddJsonFile("appsettings.json")
        .AddEnvironmentVariables()
        .Build();
    RedisConnectionString = config.GetConnectionString("Redis");
}
/// <summary>
/// 配置数据库地址
/// </summary>
private static readonly string RedisConnectionString;