.NET Core 读取 appsettings.json

 appsettings.json 文件配置如下:

{ "ConnectionStrings": { "MyDataBase": "你的数据库连接串" }, "SystemSeting": { "Debugger": true }, "Logging": { "LogLevel": { "Default": "Information", "Microsoft": "Warning", "Microsoft.Hosting.Lifetime": "Information" } }, "AllowedHosts": "*" }

1.Startup.cs文件读取 

 从配置中读取的连接字符串中。 请注意， GetConnectionString() 方法查找其键为的配置值 ConnectionStrings:<connection string name> 。 需要导入 Microsoft.Extensions.Configu 命名空间才能使用此扩展方法。

C#复制

public void ConfigureServices(IServiceCollection services) { services.AddDbContext<MyDataBase>(options => options.UseSqlServer(Configuration.GetConnectionString("MyDataBase"))); }

2.其他文件读取 

var conf = new Microsoft.Extensions.Configuration.ConfigurationBuilder().SetBasePath(System.IO.Directory.GetCurrentDirectory()).AddJsonFile("appsettings.json", true, true).AddJsonFile("appsettings.Development.json", true, true).Build();  var Debugger = conf.GetSection("SystemSeting:Debugger").Get<bool>();   var TourMall = conf.GetSection("ConnectionStrings:MyDataBase").Get<string>();