500内部：找到与请求匹配的多个操作

Question

AJAX

 $.ajax({
                url: '../api/TechViews/SView',
                type: 'POST',
                dataType: 'json',
                data: JSON.stringify({ Filter: JSON.stringify(eth.Data), Type: $('.productType.active').data('name'), Name: $('#txtView').val() }),
                global: false,
                contentType: "application/json; charset=utf-8",
                success: function (data) {
                   alert('success');

                },
                error: function (xhrequest, ErrorText, thrownError) {
                   alert('Fail');
                }
            });

控制器

    [Route("SView")]
    [HttpPost]
    public string Post([FromBody]TechViewsModel value)
    {
        string result = string.Empty;
        return result;
    }

    [Route("DView")]
    [HttpPost]
    public string Post([FromBody]TechViewsModel value)
    {
        string result = string.Empty;
        return result;
    }

Route使用的命名空间是AttributeRouting.Web.Mvc。在AJAX来电时，我得到2个错误500 (Internal Server Error)

1. 适用于TechViews
2. 适用于SView

，回复为"Message":"An error has occurred.","ExceptionMessage":"Multiple actions were found that match the request: \r\nSystem.String Post

RouteConfig

 public static void RegisterRoutes(RouteCollection routes)
    {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Login", action = "LoginPage", id = UrlParameter.Optional }
        );
    }

我试过了，

1. 删除HttpPost
2. 重新订购HttpPost和Route
3. 更改命名conntraints的名称
4. 删除参数中的FromBody
5. 更改方法名称和参数类型。

当我只使用一个没有Route的帖子时，相同的代码工作正常。

我哪里错了？

Answer 1

在api路由配置中启用config.MapHttpAttributeRoutes()选项。

public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API configuration and services

            // Web API routes
            config.MapHttpAttributeRoutes();

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

在global.asax.cs

中

GlobalConfiguration.Configure(WebApiConfig.Register);