MVC Core 2.0未按约定搜索视图

/User/Index Works UserController 查找 /Views/User/Index.cshtml

/User/Index?Page=2

/User/Index/Page2 与一起失败

InvalidOperationException:未找到视图“Index”。搜索了以下位置:/Views/Shared/Index。cshtml`

/Views/User anymore .

/用户/索引/第2页

app.UseMvc(routes => {
    routes.MapRoute(
        name: "pagination",
        template: "{controller}/{action}/Page{page}",
        defaults: new { action = "Index"}
    );
    routes.MapRoute(
        name: "default",
        template: "{controller=Home}/{action=Index}"
    );
});

以及UserController的索引操作:

public async Task<IActionResult> Index(int page = 1) => 
  View( await GetIndexModel(page));

如果指定视图的整个路径,则分页URL有效:

public async Task<IActionResult> Index(int page = 1) =>
  View("~/Views/User/Index.cshtml", await GetIndexModel(page));