多个GET在网页API调用错误动作 [英] Multiple GET's in Web API calling wrong action

问题描述

我有一个的Web API ，看起来像下面...

I have a Web API, that looks like the following...

public class LeaguesController : ApiController
{
    //api/Leagues/active/1
    //api/Leagues/complete/1
    //api/Leagues/both/1
    [GET("api/Leagues/{type}/{id}")]
    public List<Competition> Get([FromUri]int id, 
                                [FromUri]CompetitionManager.MiniLeagueType type)
    {
        return CompetitionManager.GetUsersMiniLeagues(id, true, type);
    }

    //api/Leagues/GetMiniLeagueTable/3
    [GET("api/Leagues/GetMiniLeagueTable/{id}")]
    public List<SportTableRow> GetMiniLeagueTable([FromUri]int id)
    {
        return SportManager.GetMiniLeagueTable("", id).TableRows;
    }
}

在我所说的第一种方法获取，这工作正常。
当我使用小提琴手或Chrome REST客户端调用第二种方法 GetMiniLeagueTable ，我收到以下错误：

When I call the first method Get, this works fine. When I use fiddler or Chrome REST Client to call the second method GetMiniLeagueTable, I am getting the following error:

{消息：请求是无效的。 MessageDetail：参数
  字典包含不可为空的参数类型的空项
  键入'CompetitionManager + MiniLeagueType'的方法
  System.Collections.Generic.List`1 [竞争]获取（的Int32，
  MiniLeagueType）中的LeaguesController。一个可选参数必须是
  引用类型，可空类型，或声明为可选
  参数。}

{ Message: "The request is invalid." MessageDetail: "The parameters dictionary contains a null entry for parameter 'type' of non-nullable type 'CompetitionManager+MiniLeagueType' for method 'System.Collections.Generic.List`1[Competition] Get(Int32, MiniLeagueType)' in 'LeaguesController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter." }

我使用 AttributeRouting 装饰方法，但这似乎并没有工作。这是工作的罚款我之前介绍过 MiniLeagueType 。

能欣赏到这问题的人来了，或者你可以点我到我要去的地方错了？

Has anyone come across this issue, or can you point me to where I am going wrong?

推荐答案

我觉得原因是这个网址： API /联盟/ GetMiniLeagueTable / 3 。这两个URL匹配的路线，因为它可以跨preTED这样：<？code> API /联盟类型= GetMiniLeagueTable和ID = 3 。但它不能转换 GetMiniLeagueTable 为 CompetitionManager.MiniLeagueType 值，所以它会产生错误。

I think that the cause is this url : api/Leagues/GetMiniLeagueTable/3. This url matches both routes, as it can be interpreted as such : api/Leagues?type=GetMiniLeagueTable&id=3. But it cannot convert GetMiniLeagueTable as a CompetitionManager.MiniLeagueType value, so it raises an error.

您应作出更具体的路线，例如 API /联盟/ GetCompetitions / {类型} / {ID} ，以prevent URL匹配2更不同的路线。

You should make more specific routes, for example api/Leagues/GetCompetitions/{type}/{id}, in order to prevent url matching 2 or more different routes.

另一种可能性是反转你的行动命令，因为它会才去为下一个，如果网址不符合检查的第一个行动的路线。

Another possibility is to invert your action orders, as it will check first action's route before going for the next one if the url doesn't match.

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