你能用参数做一些像RoutePrefix这样的事情吗？

Question

我想知道我是否可以做一些类似RoutePrefix("{projectName}/usergroups")的事情，因为我有很多项目，每个项目都包含用户组。现在，在每个Usergroup控制器中，我首先需要得到绑定到的Project。这个是可能的吗？

我试过什么

我尝试简单地执行RoutePrefix("projects/{projectName}")，然后在控制器构造函数中传递它，但是它不是那样工作的。我还试图在控制器级别上使用Route而不是RoutePrefix，但是我的内部路由不起作用。

代码

[RoutePrefix("projects"), Authorization]
public class UsergroupController : Controller
{
    private readonly Project _project; // i would like to inject it here on constructor
    private readonly Account _account;
    private readonly IProjectRepository _projectRepository;

    public UsergroupController(IAuthorizationService auth, IProjectRepository projectRepository)
    {
        _projectRepository = projectRepository;
        _account = auth.GetCurrentAccount();
    }

    [Route("{projectName}/usergroups"), HttpGet]
    public ActionResult Index(string projectName)
    {
        // the problem that i will need to pass projectName
        // to every action and do this check in every action as well
        //
        // looks like totally ugly code-duplication
        var project = _projectRepository
            .GetByAccountId(_account.Id.ToString())
            .SingleOrDefault(x => x.Name == projectName);

        if (project == null)
        {
            return HttpNotFound();
        }

        // now get all usergroups in this project e.g. project.Usergroups

        return null;
    }
}

Answer 1

您可以有一个接受参数的路由前缀，但是您的操作方法仍然必须接受该参数，就像它是其路由的一部分一样。您无法满足来自控制器构造函数的依赖：

[RoutePrefix("{projectName}/usergroups")]
public class UsergroupController : Controller
{
    [Route("")]
    public ActionResult Index(string projectName)
    {
        ...
    }
}