StructureMap -> Lamar .NET Core 3.1 服务创建不起作用

StructureMap -> Lamar .NET Core 3.1 service creation not working

我正尝试在最新的 dotnet 核心版本 (3.1) 上从 StructureMap 迁移到 Lamar (4.1.0)

这个项目在切换到 Lamar 之前是有效的,但是发生了太多变化,我失去了联系。

有问题吗?
扫描发生后,如何使用已扫描对象的构造函数创建对象实例。我知道 StructureMap 有点不同,但这段代码以前有效。

代码如下:

Startup.cs(尝试新拉马尔)


var container = new Container(cfg =>
{
    cfg.Scan(scanner =>
    {
        scanner.AssembliesAndExecutablesFromApplicationBaseDirectory(a => a.FullName.Contains("Project.Name.Here"));
        scanner.WithDefaultConventions();
        scanner.SingleImplementationsOfInterface();
    });


    cfg.For<IServerInformationDataAccess>()
        .Use(new ServerInformationDataAccess(Configuration.GetConnectionString(DbConnectionKey), Container.GetInstance<IMapper>()));

Startup.cs(旧的有效)

New Lamar (4.1) 不再允许我创建无参数

尝试了所有的实例化,但他们没有工作......所以我在这里

var container = new Container();

container.Configure(cfg =>
{
    cfg.Scan(s =>
    {
        s.AssembliesAndExecutablesFromApplicationBaseDirectory(a => a.FullName.Contains("Project.Name.Here"));
        s.WithDefaultConventions();
        s.SingleImplementationsOfInterface();
    });

    cfg.For<IServerInformationDataAccess>()
        .Use<ServerInformationDataAccess>(sida => new ServerInformationDataAccess(Configuration.GetConnectionString(DbConnectionKey), container.GetInstance<IMapper>()));

Program.cs


public class Program
{
    public static void Main(string[] args)
    {
        CreateHostBuilder(args).Build().Run();
    }

    public static IHostBuilder CreateHostBuilder(string[] args) =>
        Host.CreateDefaultBuilder(args)
            .UseLamar()
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder.UseStartup<Startup>();
            });
}

在这种情况下,Use 充当工厂代表

//...

cfg.For<IServerInformationDataAccess>()
    .Use<ServerInformationDataAccess>(c => { //<-- c in this case is a container context
        var connectionString = Configuration.GetConnectionString(DbConnectionKey);
        var mapper = c.GetInstance<IMapper>();
        return new ServerInformationDataAccess(connectionString, mapper);
    });

//...

引用Building Objects with Lambdas