Question

我已经为注册创建了一个WebAPI POST方法。当我使用POSTMAN测试服务时，模型对象始终为NULL。我搜索了很多这个问题，但似乎没有什么对我有用。

我的代码如下：

 public HttpResponseMessage PostStudent(EmployeeModel emp)
    {
        if (ModelState.IsValid)
        {
            using (HRMSEntities reg = new HRMSEntities())
            {
                APIRegistration entities = new APIRegistration();
                entities.Emp_No = emp.EmpNumber;
                entities.MobileNo = emp.MobileNumber;
                entities.IMEINo = emp.IMEINumber;
                entities.GPS_LAT = emp.GPSLatitude;
                entities.GPS_LOG = emp.GPSLog;
                entities.GPS_LOCATION = emp.GPSLocation;

                reg.APIRegistrations.Add(entities);
                reg.SaveChanges();

                var response = Request.CreateResponse<EmployeeModel>(HttpStatusCode.OK, emp);
                return response;
            }
        }
        else
        {
            return Request.CreateErrorResponse(HttpStatusCode.NotFound, "Emplyee not found"); 
        }


    }

这是我的POST请求：

POST/api/Registration
Cache-Control →no-cache
Content-Length →26
Content-Type →application/json; charset=utf-8
Date →Wed, 25 Apr 2018 05:41:48 GMT
Expires →-1
Pragma →no-cache
Server →Microsoft-IIS/10.0
X-AspNet-Version →4.0.30319
X-Powered-By →ASP.NET
{"EmpNumber":"104091"
 "MobileNumber":"1234567898"
 "IMEINumber":"123456789256543"
 "GPSLatitude":"47.54"
 "GPSLog"::56.543"
 "GPSLocation":"GOA"
 }

我在this链接上看到了评论，并尝试了所有解决方案，但没有任何效果。我究竟做错了什么？？

Answer 1

问题已解决。 JSON参数上缺少逗号，问题得到解决。

WebAPI Post Method中的Mobel对象始终为NULL

1 个答案: