英文:
How do I launch my own configuration without overriding .NET Core's built-in configuration?
问题
我在Visual Studio 2022中创建了一个launchSettings.json文件，使我能够从Visual Studio的启动设置下拉菜单中快速更改配置，如数据库连接字符串。
由于launchsettings.json将ASPNETCORE_ENVIRONMENT用作选择关联appsettings的键，我无法使用.NET Core内置的配置，如RELEASE，STAGING和DEVELOPMENT。 因此，我的代码及其依赖项无法响应内置配置。
是否有解决方法？
英文:
I've created a launchSettings.json file in Visual Studio 2022, enabling me to quickly change configurations such as the database connection string from Visual Studio's launch settings dropdown.
LaunchSettings.json
"iisSettings": {
    "iisExpress": {
      "applicationUrl": "http://localhost",
      "sslPort": 44392
    }
  },
  "profiles": {
    “Client_1”: {
      "commandName": "IISExpress",
      "launchBrowser": true,
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": “Client_1_ENV
      }
    },
    “Client_2: {
      "commandName": "Project",
      "launchBrowser": true,
      "applicationUrl": "https://localhost:5001;http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Client_2_ENV"
      }
    }
  }
}
appsettings.client_1_ENV.json
{
“ConnectionStrings”: “db.client_1.com”
"ASPNETCORE_ENVIRONMENT": "Development"
}
appsettings.client_2_ENV.json
{
“ConnectionStrings”: “db.client_2.com”
"ASPNETCORE_ENVIRONMENT": "Production"
}
Since launchsettings.json uses ASPNETCORE_ENVIRONMENT as a key for selecting the associated appsettings, I can't use .NET Core's built-in configuration such as RELEASE, STAGING, and DEVELOPMENT. Consequently, my code as well as its dependencies can't respond to the built-in configuration.
Is there a workaround for this?
答案1
得分: 0
在 appsettings.client_1_ENV.json/appsettings.client_2_ENV.json 中配置 "ASPNETCORE_ENVIRONMENT": "Production" 没有意义，根据这个 文档，它们会被 launchsettings.json 中的值覆盖，你的环境名称会变成 Client_1_ENV/Client_2_ENV。
你可以尝试手动添加 JSON 文件进行调试（注意具有相同名称的部分会被覆盖）：
launchsettings.json：
"profiles": {
"Client_1": {
...
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development.Client_1"
}
},
"Client_2": {
...
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development.Client_2"
}
}
}
在 Program.cs 中：
var env = builder.Environment.EnvironmentName;
var realenv = env.Split('.')[0];
var filename = String.Format("appsettings.{0}.json", realenv);
builder.Configuration.AddJsonFile(filename);
var targetstr = builder.Configuration.GetSection("MySection").Value;
var connectstr = builder.Configuration.GetConnectionString("ConStr");
builder.Environment.EnvironmentName = realenv;
在 appsettings.Development.json 中：
"MySection": "Sction1"
结果：
英文:
It makes no sense to configure "ASPNETCORE_ENVIRONMENT": "Production" in appsettings.client_1_ENV.json/appsettings.client_2_ENV.json
They would be all overrided by that in launchsettings.json accroding to this document, and your enviromentname would be Client_1_ENV/Client_2_ENV
You could try add the jsonfile mannully as below for debug(Note the section share the same name would be overrided):
launchsettings.json:
"profiles": {
"Client_1": {
......
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development.Client_1"
}
},
"Client_2": {
......
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development.Client_2"
}
},
In Program.cs:
var env = builder.Environment.EnvironmentName;
var realenv = env.Split('.')[0];
var filename = String.Format("appsettings.{0}.json", realenv);
builder.Configuration.AddJsonFile(filename);
var targetstr = builder.Configuration.GetSection("MySection").Value;
var connectstr = builder.Configuration.GetConnectionString("ConStr");
builder.Environment.EnvironmentName = realenv;
in appsettings.Development.json:
"MySection": "Sction1"
Result:
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