mvc 4中的路由问题 [英] Problem in routing in mvc 4

问题描述

我在Global.asax中有两个路由。两者都是正确的，但问题是只有路线运行，例如，如果我的网址是api / catagory / GetAllCatagory，那么它运行正常，但如果我的网址是api / catagory / Id那么它会给出错误。

I have tow Routes in Global.asax. Both are correct but the problem is that only route run which is first e.g if my url us api/catagory/GetAllCatagory then it run fine but if my url is api/catagory/Id then it gives error.

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




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

推荐答案

不是路由专家，但由于您的ID是可选的，因此可能如下。

假设您发送api / category / id



读取第一条路线，它与你的api /控制器/动作相匹配（因为你有三个部分，计算机不区分名称的含义） - 也就是说，第一条路线匹配为如果它是没有参数的动作请求。



因此，您的路线会尝试将id从api / category / id映射到api / {controller} / {action}中的action



尝试在第一个ro中设置id ute as mandatory。





如果这有帮助，请花些时间接受解决方案。谢谢。

Not an expert on routing, but since your id is optional it may be the following.
Let's say you send api/category/id

First route is read and it matches your api/controller/action (since you have three parts and computer does not distinguish the names for meaning) - that is, first route matches as if it is action request without parameters.

Therefore, your route tries to map id from api/category/id to action in api/{controller}/{action}

Try setting id in first route as mandatory.


If this helps, please take time to accept the solution. Thank you.

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