C＃Http Post從正文接收json

Question

我有這個HttpPost方法：

[HttpPost]    
public string Test([FromBody]List<Account> accounts)
{
   var json = JsonConvert.SerializeObject(accounts);
   Console.Write("success");
   return json;
}

這是我的Account類：

public class Account
{
    public int accountId;
    public string accountName;
    public string createdOn;
    public string registrationNumber;
}

這是我與郵遞員發送的json文件：

{
    "Account": [
    {
        "accountId": "1",
        "accountName": "A purple door",
        "createdOn": "25-07-2017",
        "registrationNumber": "purple"
    },
    {
        "accountId": "2",
        "accountName": "A red door",
        "createdOn": "26-07-2017",
        "registrationNumber": "red"
    },
    {
        "accountId": "3",
        "accountName": "A green door",
        "createdOn": "27-07-2017",
        "registrationNumber": "green"
    },
    {
        "accountId": "4",
        "accountName": "A yellow door",
        "createdOn": "25-07-2017",
        "registrationNumber": "yellow"
    }
    ]
}

如果我發送此json，則我的方法無效，它將返回一個空對象。 使其正常工作的唯一方法是僅發送不帶“帳戶”的對象，如下所示：

[
    {
      "accountId": "1",
      "accountName": "A purple door",
      "createdOn": "25-07-2017",
      "registrationNumber": "purple"
    },
    {
      "accountId": "2",
      "accountName": "A red door",
      "createdOn": "26-07-2017",
      "registrationNumber": "red"
    },
    {
      "accountId": "3",
      "accountName": "A green door",
      "createdOn": "27-07-2017",
      "registrationNumber": "green"
    },
    {
      "accountId": "4",
      "accountName": "A yellow door",
      "createdOn": "25-07-2017",
      "registrationNumber": "yellow"
    }
]

但是我想要以前的文件格式。 我的方法如何接收以前的JSON？

Answer 1

嘗試使用此合同來滿足您的要求。

public class Rootobject
{
    public Account[] Account { get; set; }
}

public class Account
{
    public string accountId { get; set; }
    public string accountName { get; set; }
    public string createdOn { get; set; }
    public string registrationNumber { get; set; }
}

方法應該是這樣的。

[HttpPost]    
public string Test([FromBody]Rootobject accounts)
{
   var json = JsonConvert.SerializeObject(accounts);
   Console.Write("success");
   return json;
}

Answer 2

為您的Account類添加一個包裝器並更改方法定義

public class Account
        {
            public int accountId;
            public string accountName;
            public string createdOn;
            public string registrationNumber;
        }
        public class AccountWrapper
        {
            public List<Account> Accounts { get; set; }
        }
public string Test([FromBody]AccountWrapper accounts)
    {

    }