c# - 如何在 asp.net mvc 中从同一个 api Controller 调用多个 GET 方法？

Question

我正在使用 asp.net mvc5 和 webapi 2。这是我的示例 Controller -

public class DataFetchController : ApiController
{
    public async Task<HttpResponseMessage> GetDO()
    {
        return Request.CreateResponse("ok");
    }

    public async Task<HttpResponseMessage> GetDoes()
    {
        return Request.CreateResponse("ok");
    }
 }

在我的 WebApiConfig.cs 文件中，我有以下代码 -

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

当我运行这个项目并尝试浏览“api/DataFetch/getdo”链接时，我遇到了一个错误，显示 -

{"$id":"1","Message":"An error has occurred.","ExceptionMessage":"Multiple actions were found that match the request: \r\nGetDO on type MagicMeter.Controllers.DataFetchController\r\nGetDoes on type MagicMeter.Controllers.DataFetchController","ExceptionType":"System.InvalidOperationException","StackTrace":" at System.Web.Http.Controllers.ApiControllerActionSelector.ActionSelectorCacheItem.SelectAction(HttpControllerContext controllerContext)\r\n at System.Web.Http.Controllers.ApiControllerActionSelector.SelectAction(HttpControllerContext controllerContext)\r\n at System.Web.Http.ApiController.ExecuteAsync(HttpControllerContext controllerContext, CancellationToken cancellationToken)\r\n at System.Web.Http.Dispatcher.HttpControllerDispatcher.d__1.MoveNext()"}

我该如何解决这个问题？？

Answer 1

尝试将您的路由配置代码更改为此

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