如何解决这个路由配置？配置的路由返回404

Question

我试图定义一个路由配置，这将使一个可选的“区域”在下面的网址，所有这些都将默认主页：

/uk/home // where the 'uk' parameter can be either 'uk' or 'us' 
/uk  // where the 'uk' parameter can be either 'uk' or 'us' 
/  // in this case, I just want the region to default to 'uk' 

结果我虽然变得不理想。第一个（/uk/home），而第三个（/）都工作，但第二个（/uk），返回404

的配置被定义为：

 routes.MapRoute(
      null, 
      "{region}/{controller}", 
      new { region = "^UK|US$" }, 
      new { controller = "Home", action = "Index" } 
      ); 

     routes.MapRoute(
      null, 
      "{region}", 
      new { region = "^UK|US$" }, 
      new { controller = "Home", action = "Index" } 
      ); 

     routes.MapRoute(
      null, 
      //"{region}", 
      "", 
      new {region = "UK", controller = "Home", action = "Index" } 
      ); 

我需要做什么来确保所有3个URL都默认为主页，空URL将默认地区设为'英国'？

Answer 1

尝试以下途径：

routes.MapRoute(
    "Region", 
    "{region}/{controller}", 
    new { controller = "Home", action = "Index" }, 
    new { region = "^UK|US$" } 
); 

routes.MapRoute(
    "Default", 
    "", 
    new { controller = "Home", action = "Index", region = "UK" } 
);