Question

我的Rest API中有一个枚举作为参数之一。

端点合同：

List<Transaction> GetTransactions(int employeeID, int recordOffset, int recordLimit, TransactionType transactionType = TransactionType.All);

InputJSON请求：

{
            "employeeID":"123",
            "recordOffset": 0,
            "recordLimit": 80,
            "transactionType":"All"
}

当我使用transactionType键传递此输入JSON时，我收到了400个错误的请求。

请让我知道如何，我应该在json请求中传递一个ENUM值。

public enum TransactionType
{
    All = 0,
    Incoming = 1,
    Outgoing = 2
}

异常消息：

The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://Services/2015/03:transactionType. The InnerException message was 'There was an error deserializing the object of type Entities.TransactionType. The value 'All' cannot be parsed as the type 'Int64'.'.  Please see InnerException for more details

Answer 1

期望的参数是>>> value = 2 >>> f"{value:+g}" '+2' >>> value = -2.00001 >>> f"{value:+g}" '-2.00001' >>> value = 2.00001 >>> f"{value:+g}" '+2.00001'。您应该在此处的JSON请求中传递List<string> listmobilenumber = new List<string>(); string filePath = string.Empty; if (attachmentcsv != null) { string path = Server.MapPath("~/Uploads/"); if (!Directory.Exists(path)) { Directory.CreateDirectory(path); } filePath = path + Path.GetFileName(attachmentcsv.FileName); string extension = Path.GetExtension(attachmentcsv.FileName); attachmentcsv.SaveAs(filePath); string csvData = System.IO.File.ReadAllText(filePath); foreach (string row in csvData.Split('\r','\n')) { if (!string.IsNullOrEmpty(row)) { listmobilenumber.Add(row); } } }，int或0的int值。

根据您构建JSON请求的方式，可以添加所需的Enum的值，例如1

这样，您可以在建立请求时实际使用Enum来确保使用可行的值。

WCF REST JSON请求：格式化程序异常

1 个答案: