在 POST 请求中出现 HTTP 404 错误 - C#

Question

我正在尝试创建新的 customerId 和 orderId。 然后它将显示一个新订单并检索创建的代码 201。 我不明白为什么代码不起作用。我有什么遗漏吗？

为此工作了几天，但没有运气。 希望你能看到我哪里出错了。

仍然是编程新手，非常感谢您的帮助。

代码如下：

型号：

using System.Collections.Generic;

namespace Project.Models
{
    public class Customer
    {
       public string CustomerId { get; set; }
       public string FirstName { get; set; }
       public string LastName { get; set; }
       public string DateOfBirth { get; set; }
    }

   public class Order
   {
       public string OrderId { get; set; }
       public string Product { get; set; }
       public string Status { get; set; }
       public double Price { get; set; }
   }

    public class CustomerOrder
    {
      public string CustomerId {get; set;}
      public string OrderId { get; set; }
    } 
}

---

存储库：

using System.Collections.Generic;
using System.Linq;
using Project.Models;
using System.Net;
using System.Collections.Specialized;
using System.Text;


namespace Project.Repositories
{
   public class OrderRepository
   {

       private static List<Order> _Orders;
       private static List<CustomerOrder> _CustomerOrder;

       static OrderRepository()
       {
           _Orders = new List<Order>();
           _CustomerOrder= new List<CustomerOrder>();

           _Orders.Add(new Order
           {
               OrderId = "124",
               Product= "Shirts",
               Status= "On it's way",
               Price= 100.20,
           });

           _Orders.Add(new Order
           {
               OrderId= "122",
               Product= "Pants",
               Status= "Not ready",
               Price= 300.30,
           });

           _Orders.Add(new Order
           {
               OrderId= "143",
               Product= "Deadpool",
               Status= "On it's way",
               Price= 6.20,
           });

           _Orders.Add(new Order
           {
               OrderId= "156",
               Product= "Socks",
               Status= "Not ready",
               Price= 3.30,
           });

           _CustomerOrder.Add(new CustomerOrder
           {
               CustomerId = "578",
               OrderId = "156",
           });
}

public static void SaveNewCustomerOrder(string customerId, string orderId, CustomerOrder customerOrder)
{
    order.CustomerID = customerId;
    order.OrderId= orderId;
    Order.Add(order);
}

---

控制器：

OrderController.cs：

using System.Collections.Generic;
using System.Linq;
using Microsoft.AspNetCore.Mvc;
using Project.Models;
using Project.Repositories;

namespace Project.Controllers
{
   public class OrderController : Controller
   {
      [HttpPost("customers/{customerId}/orders/{orderId}/overview")]
       public IActionResult Post([FromRoute] string customerId, string orderId, [FromBody] CustomerOrder customerOrder)
       {
          OrderRepository.SaveNewCustomerOrder(customerId, orderId, customerOrder);

          return Ok();
       }
    }
 }

---

Answer 1

[HttpPost("customers/{customerId}/orders/{orderId}/overview")]
public IActionResult Post([FromRoute] string customerId, [FromRoute] string orderId, [FromBody] CustomerOrder customerOrder)
{
    OrderRepository.SaveNewCustomerOrder(customerId, orderId, customerOrder);

    return Ok();
}

我认为不是您要寻找的答案，而是开始添加 orderID 像 [fromRoute] 参数，当您进行调试时，您在参数中看到正确的值吗？您使用的是 aspnet .core 2.0 吗？

您确定路径正确吗？我在之前的评论中读到了这个： http://localhost:5000/customers/{customerId}/orders/{orderId}/overview

检查是这个路径： http://localhost:5000/api/customers/{customerId}/orders/{orderId}/overview

Answer 2

你应该更新你的 HttpPost("Path")

根据this和this

最好用

[RoutePrefix("Path")] 带有类/控制器和

[Route("Path")]Action Method 装饰器。

Answer 3

我已经复制了您的代码，但您的预期存在一些问题。

1)

public static void SaveNewCustomerOrder(string customerId, string orderId, CustomerOrder customerOrder)
{
    order.CustomerID = customerId;
    order.OrderId= orderId;
    Order.Add(order);
}

在该方法中，您尝试添加 customerId 和 orderId，但它们不属于订单类。然后，您尝试将此订单添加到订单列表中。 我认为您可能打算传递订单而不是客户订单。我有以下类和控制器工作：

控制器：

using System.Collections.Generic;
using System.Linq;
using Microsoft.AspNetCore.Mvc;
using ben22.Repositories;
using ben22.Models.Models;

namespace ben22.Controllers
{
    public class OrderController : Controller
    {
        [HttpPost("customers/{customerId}/orders/{orderId}/overview")]
        public IActionResult Post([FromRoute] string customerId, string orderId, [FromBody] Order order)
        {
            OrderRepository.SaveNewCustomerOrder(customerId, orderId, new Order());

            return Ok();
        }
    }
}

更新了 SaveNewCustomerOrder：

public static void SaveNewCustomerOrder(string customerId, string orderId, Order order)
{
    var newCustomer = new CustomerOrder
    {
        CustomerId = customerId,
        OrderId = orderId
    };
    _CustomerOrder.Add(newCustomer);

    _Orders.Add(order);

}

点击以下端点（替换 yourPort）：

http://localhost:{yourPort}/customers/1/orders/2/overview

主体：

{
  "orderId": "55",
  "product": "Football",
  "status": "Approved",
  "price": 9.99
}

此外，如果这不起作用，我会在 Visual Studio 中检查您的 launchUrl，并可能重新启动它。

Answer 4

假设如下

我希望显示一个新订单并检索已创建的代码 201

以下内容仅作为上述请求的演示示例，并非直接取自您的示例。

public class OrderController : Controller {
    //...removed for brevity

    //POST "customers/578/orders/1576/overview
    [HttpPost("customers/{customerId}/orders/{orderId}/overview")]
    public IActionResult Post(string customerId, string orderId) {
        var order = orderRepository.CreateNewCustomerOrder(customerId, orderId);
        if(order == null) {
            return BadRequest();
        }
        //return 201 created status code along with 
        //the route name, route value, and the actual object that is created
        return CreatedAtRoute("GetOrder", new { orderId = order.OrderId }, order);
    }

    //GET orders/157
    [HttpGet("orders/{orderId}", Name = "GetOrder")]
    public IActionResult GetOrder(string orderId) {
        var order = orderRepository.GetOrder(orderId);
        if(order == null) {
            return NotFound();
        }
        return Ok(order);
    }
}