launch.json 和 launchSetting.json 的差別

在 Visual Studio 開發環境 中會用 launchSettings.json 控制啟動參數。

在 VS Code 中進行除錯與啟動，則使用 launch.json。

如果你用 dotnet run，它會參考 launchSettings.json 中指定的 applicationUrl 和環境變數。

舉例說明

• launch.json（VS Code）

{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Launch .NET Core App",
      "type": "coreclr",
      "request": "launch",
      "preLaunchTask": "build",
      "program": "${workspaceFolder}/bin/Debug/net6.0/MyApp.dll",
      "args": [],
      "cwd": "${workspaceFolder}",
      "env": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  ]
}

• launchSettings.json（Visual Studio 或 dotnet CLI）

{
  "profiles": {
    "MyApp": {
      "commandName": "Project",
      "launchBrowser": true,
      "applicationUrl": "https://localhost:5001;http://localhost:5000",
      "environmentVariables": {
        "ASPNETCORE_ENVIRONMENT": "Development"
      }
    }
  }
}