WebApi 2-Json请求待处理

Question

when I call one webapi from ajax, if I return something different from simple string or int, the request is still pending.

here my javascript:

var endPoint = "/api/services/attivita/set";
$.ajax({
    url: endPoint,
    data: JSON.stringify(
        {
        'id': attivita.IDTipoAttivita,
        'descrizione': $('#Descrizione').val()
        }
    ),
    dataType: 'json',
    contentType: "application/json;charset=utf-8",
    processData: false,
    type: 'post',
    success: function (data) {
        console.log('ok');
    },
    error: function (data) {
        console.log('ko');
    }
});

and here webapi code

    [System.Web.Http.HttpGet]
    [System.Web.Http.HttpPost]
    [System.Web.Http.Route("api/services/attivita/set")]
    public TipoAttivita SetAttivita([FromBody] dynamic obj)
    {
        var id = (int)obj.id;
        var descrizione = obj.descrizione.ToString();
        var nuovo = id == -1;

        var attivita = new TipoAttivita()
        //do stuff of attivita object
        this.CurrentDb.TipoAttivita.Add(attivita);
        this.CurrentDb.SaveChanges();

        return (attivita);
    }

If I change to "public int...." and "return(1);" at the end of the function everything works fine.

in WebApiConfig.cs I have this

var jsonFormatter = new JsonMediaTypeFormatter
        {
            SerializerSettings = {ReferenceLoopHandling = ReferenceLoopHandling.Ignore}
        };
        jsonFormatter.SupportedMediaTypes.Add(new MediaTypeHeaderValue("application/json"));

        config.Formatters.Clear();
        config.Formatters.Add(jsonFormatter);

Any idea? Thanks a lot

Answer 1

尝试将返回类型更改为IHttpActionResult并返回Ok(attivita)