获取状态:404,statusText:"Not Found",url ... 在 asp.net 中使用核心 webApi?

getting status: 404, statusText: "Not Found", url ... in asp.net using core webApi?

在 ASP.NET Core Web API 中出现 404 错误。使用 ASP.NET 我在前端使用 Angular 7。当我单击表单的保存按钮时,表单数据到达 angular 中的 post 方法,但在单击保存后显示 404 错误。对于这种形式,我创建了第一个模型,在其中为数据库定义了它的 属性,然后我为该模型创建了控制器并使用了我在模型中声明的 属性。

Angular 服务 ts 文件:

export class MurderService {
   BaseUrl :string ='';
  constructor( private http:HttpClient, private config:ConfigService) {
    this.BaseUrl=config.getApiURI();
   }

  murderQuestionnaire(data: any){
     var murderBody={
       Dead: data.Dead,
       Wounded: data.Wounded,
       CriminalsInvolved: data.CriminalsInvolved,
       CriminalAppearance: data.CriminalAppearance,
       VehiclesUsed: data.VehiclesUsed,
       WeaponsDescription :data.WeaponsDescription
     };
     return this.http.post(this.BaseUrl +'/Complians' , murderBody);//upto here data reaches 
      successfully
  }
}

API 此服务的控制器:

    [Route("api/[controller]")]
    [ApiController]
    public class ComplainMurderController : ControllerBase
    {
        [HttpPost]
        [Route("Complians")]
        //api:/Complians
        public void PostComplainMurder(Complians complian)
        {
            var complianMurder = new Complians()
            {
                Dead = complian.Dead,
                Wounded = complian.Wounded,
                CriminalsInvolved = complian.CriminalsInvolved,
                CriminalAppearence = complian.CriminalAppearence,
                VehiclesUsed = complian.VehiclesUsed,
                WeaponsDescription = complian.WeaponsDescription
            };
            try
            {
               // var result = await complian.Add(complianMurder);
                AuthenticationContext authenticationContext = new AuthenticationContext();
                authenticationContext.Add(complianMurder);
                authenticationContext.SaveChanges();
            }
            catch(Exception ex)
            {
                throw ex;
            }
        }
    }
}

错误

POST http://localhost:49601/api/Complians 404 (Not Found)

您的控制器路由定义为 api/[controller](在您的情况下,这导致 api/ComplainMurder)。您的操作定义为 Complians。这些组合起来就是你的实际路线:api/ComplainMurder/Complians,不匹配 api/Complians.

用这个改变你的 Angular 7 面将修复它:

return this.http.post(this.BaseUrl +'/ComplainMurder/Complians' , murderBody);

旁注:注意 incorrect/inconsistent 拼写(合规而不是抱怨),因为它势必会导致混淆 and/or 错误。