Question

我的动作有不同的类型参数。

public class MyController : ApiController
{       
    [HttpPost]
    public UpdateFeatureResponse UpdateFeature(UpdateFeatureResuest reqResuest)
    {
        return new UpdateFeatureResponse { IsSuccess = true };
    }

    [HttpPost]
    public DeleteFeatureResponse DeleteFeature(DeleteFeatureRequest request)
    {
        return new DeleteFeatureResponse{ IsSuccess = true };
    }

}

我的请求类型是这样的：

public class UpdateFeatureResuest
{
    public int Id { get; set; }
    public string Feature { get; set; }
}

public class UpdateFeatureResponse
{
    public bool IsSuccess { get; set; }
}

public class DeleteFeatureRequest
{
    public int Id { get; set; }
}

public class DeleteFeatureResponse
{
    public bool IsSuccess { get; set; }
}

路线在这里：

config.Routes.MapHttpRoute(
    name: "DefaultApi",
    routeTemplate: "api/{controller}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

当我通过fiddler发送请求（http://localhost:52285/api/My/UpdateFeature）时，它返回 HTTP / 1.1 500内部服务器错误

错误信息是：

{“message”：“发生错误。”，“exceptionMessage”：“在WebGUI.Controllers类型上找到与请求匹配的多个操作：\ r \ nUpdateFeature类型为WebGUI.Controllers.MyController \ r \ n \ nDeleteFeature .MyController“，”exceptionType“：”System.InvalidOperationException“，”stackTrace“：”.....

Answer 1

您的路线错误，因为它未指定操作名称，因此它将UpdateFeature部分视为ID参数。将其更改为：

config.Routes.MapHttpRoute(
    name: "DefaultApi",
    routeTemplate: "api/{controller}/{action}/{id}",
    defaults: new { id = RouteParameter.Optional }
);

Answer 2

最好使用Route属性。

例如

[RoutePrefix("myapi")]
public class MyController : ApiController
{       
    [Route("update")]
    [HttpPost]
    public UpdateFeatureResponse UpdateFeature(UpdateFeatureResuest reqResuest)
    {
        return new UpdateFeatureResponse { IsSuccess = true };
    }

    [Route("delete")]
    [HttpPost]
    public DeleteFeatureResponse DeleteFeature(DeleteFeatureRequest request)
    {
        return new DeleteFeatureResponse{ IsSuccess = true };
    }

}

现在在WebApiConfig

之前将其添加到config.Routes.MapHttpRoute()

config.MapHttpAttributeRoutes();

Web Api找到了多个操作

2 个答案: