如何在ASP.NET MVC中使用查询字符串路由URL？

Question

我正在尝试在MVC中设置自定义路由,以便采用以下格式从另一个系统获取URL:

../ABC/ABC01?Key=123&Group=456

第二个ABC之后的01是一个步骤编号,这将改变,键和组参数将改变.我需要将此路由路由到控制器中的一个操作,步骤编号键和组作为参数.我尝试了以下代码,但它抛出异常:

码:

routes.MapRoute(
    "OpenCase", 
    "ABC/ABC{stepNo}?Key={key}&Group={group}",
    new {controller = "ABC1", action = "OpenCase"}
);

例外:

`The route URL cannot start with a '/' or '~' character and it cannot contain a '?' character.`

Answer 1

您不能在路由中包含查询字符串.试试这样的路线:

routes.MapRoute("OpenCase", "ABC/ABC{stepNo}",
   new { controller = "ABC1", action = "OpenCase" });

然后,在您的控制器上添加如下方法:

public class ABC1 : Controller
{
    public ActionResult OpenCase(string stepno, string key, string group)
    {
        // do stuff here
        return View();
    }        
}

ASP.NET MVC将自动将查询字符串参数映射到控制器中方法中的参数.

Answer 2

定义路由时，不能/在路由的开头使用 a ：

routes.MapRoute("OpenCase",
    "/ABC/{controller}/{key}/{group}", // Bad. Uses a / at the beginning
    new { controller = "", action = "OpenCase" },
    new { key = @"\d+", group = @"\d+" }
    );

routes.MapRoute("OpenCase",
    "ABC/{controller}/{key}/{group}",  // Good. No / at the beginning
    new { controller = "", action = "OpenCase" },
    new { key = @"\d+", group = @"\d+" }
    );

尝试这个：

routes.MapRoute("OpenCase",
    "ABC/{controller}/{key}/{group}",
    new { controller = "", action = "OpenCase" },
    new { key = @"\d+", group = @"\d+" }
    );

那么您的操作应如下所示：

public ActionResult OpenCase(int key, int group)
{
    //do stuff here
}

看起来您正在将stepNo和“ABC”放在一起以获得一个控制器ABC1。这就是为什么我用{controller}.

由于您还有一个定义“键”和“组”的路由，因此上述路由还将捕获您的初始 URL 并将其发送到操作。