[英]using foreach for C# for Email in Asp.NetCore Web API
[英]Routing in c# ASP.NETcore
_Layout 中的 Products/List 字符串有問題。 cshtml。 當我啟動站點並單擊“產品”選項卡時,沒有重定向到工作表部分,並給出 404 錯誤。而不是在 _Layout 中指定的地址路徑。 cshtml (asp-action="Products/List"),它輸出"Products%2FList"。 問題是否與路由設置有關? 但是,如果您手動輸入完整地址:https://localhost:44332/Products/List,則控制器會毫無問題地找到它。
布局:
<ul class="navbar-nav flex-grow-1">
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Index">Home</a>
</li>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Privacy">Privacy</a>
<li class="nav-item">
<a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Products/List">Products</a>
</li>
產品控制器:
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace AppForPryaniki.Controllers
{
public class ProductsController : Controller
{
private ProductReader reader;
public ProductsController()
{
reader = new ProductReader();
}
// Products/List
public IActionResult List()
{
List<Product> products = reader.ReadFromFile();
return View(products);
}
// Products/Details/1
public IActionResult Details(int id)
{
List<Product> products = reader.ReadFromFile();
Product product = products.Where(x => x.Id == id).FirstOrDefault();
if (product != null)
{
return View(product);
}
else
{
return NotFound();
}
}
}
}
設置路由:
public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Home/Error");
// The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseStaticFiles();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllerRoute(
name: "default",
pattern: "{controller=Home}/{action=Index}/{id?}");
});
}
}
}
家庭控制器
namespace AppForPryaniki.Controllers
{
public class HomeController : Controller
{
private readonly ILogger<HomeController> _logger;
public HomeController(ILogger<HomeController> logger)
{
_logger = logger;
}
public IActionResult Index()
{
Product product = new Product();
product.Id = 1;
product.Name = "Test";
return View(product);
}
public IActionResult Privacy()
{
return View();
}
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
{
return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
}
public IActionResult Products()
{
return View();
}
public IActionResult Test()
{
return View();
}
}
}
你這里有兩個錯誤:
<a class="nav-link text-dark" asp-area="" asp-controller="Home" asp-action="Products/List">Products</a>
首先,您想要路由到ProductsController
上的操作,因此Home
是用於asp-controller
的錯誤值。 相反,您想使用Products
。
其次, asp-action
值也是錯誤的,因為您想要的操作稱為List
,而不是Products/List
。 正確的值為List
。
這是更改后的樣子:
<a class="nav-link text-dark" asp-area="" asp-controller="Products" asp-action="List">Products</a>
當您檢查https://localhost:44332/Products/List
以查看它是否有效時,您已經自行解決了這個問題。 當您能夠直接導航到類似的內容時,這始終表明您嘗試在視圖中生成的鏈接是問題所在。
Controller 和 Action 的名稱不正確。 asp-controller
應該是Products
並且asp-action
應該是List
。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.