3
我试图将一个对象POST到接受一个复杂类型作为参数但收到参数为null的WebAPI控制器。任何想法为什么?该请求正确地击中了WebAPI方法,并且参数为空。webapi接收空参数
型号:
namespace DMAX.BLL.MASReports.Models
{
public class StatsCriteria
{
#region Constructors and Methods
public StatsCriteria()
{
}
#endregion
#region Properties and Fields
private string _masnum;
private string _notchosen;
private int _currentPage = 1;
private bool _isPrint = false;
private bool _isEmail = false;
private bool _isAjax = false;
public string Masnums { get {
if (!string.IsNullOrEmpty(_masnum)) {
_masnum = _masnum.Replace("'", "");
if (!string.IsNullOrEmpty(NotChosen)) {
string[] notchosenlist = NotChosen.Split(',');
foreach (var notchosen in notchosenlist) {
_masnum = this.RemoveNotChosen(_masnum, notchosen);
}
}
return _masnum;
}
return null;
}
set { _masnum = value; }
}
public string AgentId { get; set; }
public string LicenseNum { get; set; }
public string AgentFullName { get; set; }
public string HeaderName { get; set; }
#endregion
}
}
}
下面是在客户端代码:[该StatsCriteria是项目BLL的一部分,我在MASReports项目引用它]
namespace MASReports.Controllers
{
public ActionResult Reports(StatsCriteria criteria)
{
var client = new HttpClient();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var response = client.PostAsJsonAsync("http://localhost:52765/api/reports", criteria.Masnums.ToString()).Result;
return View("CMAReport", response);
}
}
这里的Webapi中我的控制器的签名。 [该StatsCriteria是项目BLL的一部分,我在ReportsAPI项目到项目的引用] [该CMAReportVM,CMAReport是项目BLL的一部分,我必须在ReportsAPIproject BLL项目的引用]
namespace ReportsAPI.Controllers
{
public class ReportsController : ApiController
{
[HttpPost]
public CMAReportVM Reports([FromBody] StatsCriteria criteria)
{
var cmaReport = Service3.GetCMAReport(criteria.Masnums);
//Create Map to enable mapping business object to View Model
Mapper.CreateMap<CMAReport, CMAReportVM>();
// Maps model to VM model class
var cmaVM = Mapper.Map<CMAReport, CMAReportVM>(cmaReport);
reutn cmaVM;
}
}
}
//这是我的路由:
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
,这里是我的Web API的Golbal.asax
namespace ReportsAPI
{
// Note: For instructions on enabling IIS6 or IIS7 classic mode,
// visit http://go.microsoft.com/?LinkId=9394801
public class WebApiApplication : System.Web.HttpApplication
{
protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
WebApiConfig.Register(GlobalConfiguration.Configuration);
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);
GlobalConfiguration.Configuration.Formatters.JsonFormatter.MediaTypeMappings.Add(new QueryStringMapping("json", "true", "application/json"));
}
}
}
检查模型状态是否有任何错误。 –
response = {StatusCode:500,ReasonPhrase:'内部服务器错误',... – BumbleBee
对不起,我不是很清楚......你可以在动作开始时添加下面的代码来查看更详细的错误:'' if(!ModelState.IsValid) { throw new HttpResponseException(Request.CreateErrorResponse(HttpStatusCode.BadRequest,this.ModelState)); }'...顺便说一句,在你的500以上的回复中,你是否看到任何错误信息? –