嵌套列表JSON .NET

Question

我当前正在尝试接受POST请求对.net Core Web API端点接受以下模型：

public class OrderPost
{
    [Required]
    public string DeliveryStreet { get; set; }
    public string DeliveryBuilding { get; set; }
    [Required]
    public string DeliveryCity { get; set; }
    [Required]
    public string DeliveryProvince { get; set; }
    [Required]
    public string DeliveryPostalCode { get; set; }
    [Required]
    public string CardName { get; set; }
    [Required]
    public string CardNumber { get; set; }
    [Required]
    public string CardExpiry { get; set; }
    [Required]
    public long CardCvv { get; set; }
    [Required]
    public List<OrderItem> OrderItems { get; set; }
}
public class OrderItem
{
    public long Id { get; set; }
    public string Category { get; set; }
    public string Name { get; set; }
    public string Description { get; set; }
    public Uri ImageUrl { get; set; }
    public long Price { get; set; }
    public DateTimeOffset CreatedAt { get; set; } 
    public DateTimeOffset UpdatedAt { get; set; }
    public long Quantity { get; set; }
}

当我删除List<OrderItem>并在没有列表的情况下发布数据时，呼叫完美效果。一旦我添加列表并尝试和POST数据，我会遇到400 Bad Request错误。我有一种感觉，我只是缺少列表中的一些属性或其他属性。我发布的JSON有效，我对此进行了仔细检查。关于可能导致这一点的任何想法？

这是json我是帖子：

{
    "deliveryStreet": "Test street",
    "deliveryBuilding": "",
    "deliveryCity": "TEst",
    "deliveryProvince": "TEst",
    "deliveryPostalCode": "0852",
    "cardName": "Jane Jones",
    "cardNumber": "4711 1000 0000 0000",
    "cardExpiry": "05 / 20",
    "cardCvv": "123",
    "orderItems": [{
        "id": 1,
        "category": null,
        "name": "Test",
        "description": "Test test test",
        "imageUrl": "http://google.com/",
        "price": 625,
        "createdAt": "2019-02-21T13:25:56.709192",
        "updatedAt": "2019-02-21T13:25:56.709192",
        "quantity": 5
    }]
}

这是我试图 POST到：

的终点

[HttpPost]
public IActionResult Post([FromBody]OrderPost data)
{
        //Get the credit card type off of the number
        var type = StringUtilities.GetCardTypeFromNumber(data.CardNumber);
        //Check if valid type was found
        if (type == "UNKNOWN")
            return BadRequest("Unknown credit card type");
        float total = 0;
        .................
}

Answer 1

您如何发送？

data: {
   deliveryObj: yourDeilveryObj,
   orderItems: yourOrderItemsArray
}

和您的json OBJ应该看起来如下：

{   
    "deliveryObj":      
        {   
            "deliveryStreet": "Test street",
            "deliveryBuilding": "",
            "deliveryCity": "TEst",
            "deliveryProvince": "TEst",
            "deliveryPostalCode": "0852",
            "cardName": "Jane Jones",
            "cardNumber": "4711 1000 0000 0000",
            "cardExpiry": "05 / 20",
            "cardCvv": "123",
        }, 
    "orderItems": [{
        "id": 1,
        "category": null,
        "name": "Test",
        "description": "Test test test",
        "imageUrl": "http://google.com/",
        "price": 625,
        "createdAt": "2019-02-21T13:25:56.709192",
        "updatedAt": "2019-02-21T13:25:56.709192",
        "quantity": 5
    }]
}

现在，在后端，您应该收到它 JObject。

您的接收方法应该看起来像Post(JObject objData)。现在，您可以将此objData分解为JObject和JArray。看起来像是什么：

[HttpPost]
public IHttpActionResult POST(JObject objData)
        {
            dynamic jsonData = objData;
            //DeliveryObj
            JObject deliveryObjJson = jsonData.deliveryObj;
            var deliveryObj= deliveryObjJson .ToObject<OrderPost>();
            //OrderItemsArray
            JArray orderItemsJson = jsonData.orderItems;
            var orderItems = orderItemsJson.Select(item => item.ToObject<OrderItem>()).ToList();

            return Ok(_services.Post(deliveryObj, orderItems ).Data);
        }

Answer 2

对于ASP.NET Core Web API，模型验证错误会自动触发HTTP 400响应，检查自动HTTP 400响应。

尝试使用以下代码进行测试：

services.AddMvc()
    .SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
    .ConfigureApiBehaviorOptions(options =>
    {
        options.SuppressModelStateInvalidFilter = true;
    });