如何在中隔离分离文件中的连接字符串asp.net核心?

使用 ConfigureAppConfiguration 在你的 Program

WebHost.CreateDefaultBuilder(args)
.UseStartup<Startup>()
.ConfigureAppConfiguration(builder =>
{
    builder.AddJsonFile("appsetting.json");
    builder.AddXmlFile("connectionStrings.config"));
});

具有.NET内核或ASP.NET核心我们不用网站配置或者应用程序配置为了这个目的。有一个新的 configuration-system

1. appsettings.json文件,可选
2. appsettings.{environment}.json,可选
3. 环境变量

为此,您需要有对的引用(默认情况下,通过meta包为visualstudio模板提供)

1. Microsoft.Extensions.Configuration
2. Microsoft.Extensions.Configuration.Json
3. Microsoft.Extensions.Configuration.EnvironmentVariables

现在不要使用默认配置,而是在startup类中构建自己的配置。

public class Startup 
{
  // environment is being injected by the webhost
  public Startup(IHostingEnvironment environment)
  {
     var configuration = new ConfigurationBuilder()
                             .AddJsonFile(Path.Combine(AppContext.BaseDirectory, "appsettings.json"), optional: false) // u can change that if you want to be optional
                             .AddJsonFile(Path.Combine(AppContext.BaseDirectory, $"appsettings.{environment.environmentName}.json), optional: false)"
                             .AddJsonFile(Path.Combine(AppContext.BaseDirectory, "connectionsettings.json"), optional: false)
                             .Build();
  }
}

然后你就可以像以前一样访问它们了

configuration.GetConnectionString("MyConnectionString");

"ConnectionStrings": {
   "MyConnectionString": "some-connectionstring-value"
}

https://docs.microsoft.com/en-us/aspnet/core/security/app-secrets?view=aspnetcore-3.1&tabs=windows

• 这个秘密文件在git文件夹之外,所以它永远不会被错误地提交。
• 您可以从visualstudio编辑这个秘密文件,它看起来与appsettings.json文件