Question

Greatings，

我的asp.net mvc4研究项目有问题。我试图用多个get动作创建apicontroller，其中一些带参数，其他 - 没有。

我的api

public class ContentController : ApiController
{
    [System.Web.Http.HttpGet]
    public HttpResponseMessage Categories1()
    {
        return Request.CreateResponse(HttpStatusCode.OK, new string[] { "Toys", "Games", "Animals", "Woob-Woob" }, Configuration.Formatters.JsonFormatter);
    }

    [System.Web.Http.HttpGet]
    public HttpResponseMessage Categories2()
    {
        return Request.CreateResponse(HttpStatusCode.OK, new string[] { "Toys", "Games", "Animals", "Woob-Woob" }, Configuration.Formatters.JsonFormatter);
    }

    [System.Web.Http.HttpGet]
    public HttpResponseMessage Categories3(int i)
    {
        return Request.CreateResponse(HttpStatusCode.OK, new string[] { "Toys", "Games", "Animals", "Woob-Woob" }, Configuration.Formatters.JsonFormatter);
    }

    [System.Web.Http.HttpGet]
    public HttpResponseMessage Categories4(int i)
    {
        return Request.CreateResponse(HttpStatusCode.OK, new string[] { "Toys", "Games", "Animals", "Woob-Woob" }, Configuration.Formatters.JsonFormatter);
    }
}

我的apiConfig：

    public static void Register(HttpConfiguration config)
    {
        config.Routes.MapHttpRoute(
            name: "ApiByActionWithId",
            routeTemplate: "api/{controller}/{action}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );

        config.Routes.MapHttpRoute(
            name: "ApiByAction",
            routeTemplate: "api/{controller}/{action}"
        );

        config.Routes.MapHttpRoute(
            name: "ApiByName",
            routeTemplate: "api/{controller}/{action}/{name}",
            defaults: null
        );

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

以及

的结果

/ api / content / categories1的结果是[“玩具”，“游戏”，“动物”，“Woob-Woob”]

for / api / content / categories3和/ api / content / categories3 / 1 result - “找不到与请求URI匹配的HTTP资源'http：// localhost：51200 / api / content / categories3'。”< / p>

我不知道应如何处理

Answer 1

我认为它失败了，因为api操作中参数的名称与路径中参数的名称不匹配。

更改您的第一条路线：

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

以下内容：

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

看看是否有效。

通常，更具体的路线应位于Register方法的顶部。最常见的路线位于底部，是全能的。

考虑如下控制器：

public class UserSettingsController : ApiController
{
    [HttpGet]
    public HttpResponseMessage GetAll();
    [HttpGet]
    public HttpResponseMessage Get(string key);
    [HttpGet]
    public HttpResponseMessage Set(string key, string value);
    [HttpGet]
    public HttpResponseMessage Restore(string key);
}

要设置路线，需要以下路线。请注意，如果api调用上没有键，则会对它们进行排序，以便触发GetAll方法。如果前两个路由被切换，那么GetAll版本将永远不会被命中，因为对/ api / settings的调用将转到Get方法，并且该键将被设置为null。

        config.Routes.MapHttpRoute(
              name: "user/settings",
              routeTemplate: "user/settings",
              defaults: new { controller = "UserSettings", action = "GetAll" },
              constraints: new { httpMethod = new HttpMethodConstraint(HttpMethod.Get) }
        );

        config.Routes.MapHttpRoute(
              name: "user/settings/{key} (get)",
              routeTemplate: "user/settings/{key}",
              defaults: new { controller = "UserSettings", action = "Get" },
              constraints: new { httpMethod = new HttpMethodConstraint(HttpMethod.Get) }
        );

        config.Routes.MapHttpRoute(
              name: "user/settings/{key} (set)",
              routeTemplate: "user/settings/{key}",
              defaults: new { controller = "UserSettings", action = "Set" },
              constraints: new { httpMethod = new HttpMethodConstraint(HttpMethod.Put) }
        );

        config.Routes.MapHttpRoute(
              name: "user/settings/{key}/restore",
              routeTemplate: "user/settings/{key}/restore",
              defaults: new { controller = "UserSettings", action = "Restore" },
              constraints: new { httpMethod = new HttpMethodConstraint(HttpMethod.Post) }
        );

Asp.net mvc api有多个获取和参数

1 个答案: