asp.net核心-modelstate badrequest行為不一致

Question

我有一個簡單的模型：

public class Item : Entity<int>
{
    [Required]
    public string Name { get; set; }
    [Required]
    public int Cost { get; set; }
}

內部控制器：

[HttpPost]
public async Task<IActionResult> Create([FromBody] Item item)
{
    if(!ModelState.IsValid) 
    {
       return BadRequest(ModelState);
    }
    repository.Create(item);
    await repository.SaveAsync();
    return Created($"/api/v1/items/{item.Id}", new { message = "Item was created successfully!" });
}

現在，對於以下三個不正確的示例輸入，我得到以下響應：

樣本1：

POST http://localhost:5000/api/v1/items
content-type: application/json

{
    "name": "sample1",
    "cost": $100000
}

響應：

{
  "cost": [
    "The input was not valid."
  ]
}

樣本2：

POST http://localhost:5000/api/v1/items
content-type: application/json

{
    "name": "sample2",
    "cost": "10000000000000000000000000"
}

響應：

{
  "cost": [
    "The input was not valid."
  ]
}

示例3： 這似乎是一個錯誤。 出現一個空鍵（而不是int超出范圍錯誤）

POST http://localhost:5000/api/v1/items
content-type: application/json

{
    "name": "sample3",
    "cost": 10000000000000000000000000
}

響應：

{
  "": [
    "The input was not valid."
  ],
  "cost": [
    "The input was not valid."
  ]
}

編輯：在github上添加了跟蹤票-https: //github.com/aspnet/Mvc/issues/5672

Answer 1

第一個和最后一個是無效的json，第二個是對於整數cost而言過高的數字。 確保您的費用不超過INT_MAX: 2147483647 。