Question

我希望有人可以帮助我。我有一个WCF REST服务，它可以正常使用所有GET功能。但是我无法使POST方法起作用。我的服务合同是

    [OperationContract]
    [WebInvoke(Method = "POST", BodyStyle = WebMessageBodyStyle.Wrapped, RequestFormat = WebMessageFormat.Json, ResponseFormat = WebMessageFormat.Json, UriTemplate = "NewEmployeeLeave/")]
    string addTimeOff(mmpTimeOff data);

正在调用以下

// addTimeOff
    // Add a new time off record with passed information
    public string addTimeOff(mmpTimeOff data)
    {
        try
        {
            // Add the new record to the employees leave requests
            mmpTimeOff newTimeOff = data;
            db.TimeOffs.Add(new TimeOff
            {
                StartDate = newTimeOff.StartDate,
                EndDate = newTimeOff.EndDate,
                PersonId = newTimeOff.PersonId,
                Manager = newTimeOff.Manager,
                TimeOffType = newTimeOff.TimeOffType,
                Status = newTimeOff.Status,
                Notes = newTimeOff.Notes
            });

            db.SaveChanges();
        }
        // Make sure that we can push the error back to the client.
        catch (Exception e)
        {
            return e.Message;
        }

        return "ok";
    }

客户端代码如下。

client = new HttpClient();
        HttpResponseMessage response=new HttpResponseMessage();
        mmpPerson user = new mmpPerson();
        client.BaseAddress = new Uri(url);
        client.DefaultRequestHeaders.Accept.Clear();
        client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

        try
        {
            mmpTimeOff newLeave = new mmpTimeOff()
            {
                PersonId = user.Id,
                StartDate = DateTime.Parse("2017-10-22"),
                EndDate = DateTime.Parse("2017-10-28"),
                TimeOffType = "Annual",
                Manager = user.Manager,
                Status = "Appr"

            };

            response = await client.PostAsJsonAsync(url + "/newemployeeleave", newLeave);
            if (response.IsSuccessStatusCode)
            {
                ViewBag.Added = "Added New Leave Successfully";
            }

当客户端运行时，我得到一个空值，通过addTimeOff方法发送。

该类在服务中定义为

public class mmpTimeOff
{
    [DataMember]
    public int Id { get; set; }
    [DataMember]
    public System.DateTime StartDate { get; set; }
    [DataMember]
    public System.DateTime EndDate { get; set; }
    [DataMember]
    public string TimeOffType { get; set; }
    [DataMember]
    public int PersonId { get; set; }
    [DataMember]
    public string Status { get; set; }
    [DataMember]
    public Nullable<int> Manager { get; set; }
    [DataMember]
    public string Notes { get; set; }

}

并作为连接服务绑定到客户端。

如何成功将对象数据传递到服务。

感谢所有的帮助。

里克

Answer 1

尤里卡!!!!

感谢尤金。在阅读了你的回复并查看了链接之后，我使用POSTMAN进行了一些进一步的调查，我发现PostAsJsonAsync确实正在对正在传递的数据进行json转换，但由于对象的StartDate和EndDate属性是DateTime对象，它似乎是json转换不喜欢它。

我已将模型更改为传递日期字符串，现在它正在按预期工作。

里克

从MVC客户端调用MS WCF REST服务POST BAD请求c＃

1 个答案: