.net core 单文件发布，找不到appsettings.json的问题

解决方案

config.SetBasePath(GetBasePath());
config.AddJsonFile("appsettings.json", false);

private string GetBasePath()
{
    using var processModule = Process.GetCurrentProcess().MainModule;
    return Path.GetDirectoryName(processModule?.FileName);
}

来源:
https://stackoverflow.com/questions/58307558/how-can-i-get-my-net-core-3-single-file-app-to-find-the-appsettings-json-file