为什么我的帖子方法没有收到它发送的数据?

时间:2017-10-16 00:28:51

标签: c# http-post postman asp.net-core-webapi asp.net-core-2.0

我有一个post方法,每次调用参数School时总是为null。我确保发送正确的数据,我正在使用Postman,但是当我用断点检查它时,我得到一个空对象。

我与邮递员发送的内容:

{
    "Id": "",
    "Name": "Test"
}

控制器:

[HttpPost]
public IActionResult Post([FromBody] School school)
{
    try
    {
        if (!ModelState.IsValid)
        {
            return BadRequest();
        }

        var schoolData = Mapper.Map<School, Data.School>(school);

        var schoolModel = _schoolRepository.AddSchool(schoolData);

        return CreatedAtRoute("GetSchool", new { id = schoolModel }, schoolModel);
    }
    catch (Exception e)
    {
        return LogException(e);
    }
}

型号:

public class School
{
    public Guid Id { get; set; }
    [Required(ErrorMessage = "Name is required")]
    public string Name { get; set; }
    public IEnumerable<Teacher> Teachers { get; set; }
    public IEnumerable<Class> Classes { get; set; }
}

1 个答案:

答案 0 :(得分:1)

问题是您的模型需要Guid并且您要发送empty string

"Id": ""

无论Id不是[Required],模型仍然无法解析数据。但是,您可以做的是将其排除在绑定之外:

public IActionResult Post([FromBody][Bind(Include = nameof(School.Name))] School school)

或者,更好的选择是使用ViewModel。但是,在这种情况下,由于您只有一个属性,我只是使用它:

public IActionResult Post([FromBody]string name)