Asp.net Core MVC中怎么把二级域名绑定到特定的控制器上

　　从上面的代码我们只看到了域名检测，但是如何把域名定向到特定的控制器上，这就需要我们在注册这个IRouter的时候做些文章，直接上代码：

public static class RouteBuilderExtensions
  {    public static IRouteBuilder MapDomainRoute(
      this IRouteBuilder routeBuilder,string domain,string area,string controller)
    {
      if(string.IsNullOrEmpty(area)||string.IsNullOrEmpty(controller))
      {
        throw new ArgumentNullException("area or controller can not be null");
      }
      var inlineConstraintResolver = routeBuilder
        .ServiceProvider
        .GetRequiredService<IInlineConstraintResolver>();
        string template = "";
          RouteValueDictionary defaults = new RouteValueDictionary();
          RouteValueDictionary constrains = new RouteValueDictionary();
          constrains.Add("area", area);
          defaults.Add("area", area);
          constrains.Add("controller", controller);
          defaults.Add("controller", string.IsNullOrEmpty(controller) ? "home" : controller);
          defaults.Add("action", "index");
          template += "{action}/{id?}";//路径规则中不再包含控制器信息，但是上面通过constrains限定了查找时所要求的控制器名称
          routeBuilder.Routes.Add(new SubDomainRouter(routeBuilder.DefaultHandler, domain, template, defaults, constrains, inlineConstraintResolver));
      return routeBuilder;
    }
}

　　最后我们就可以在Startup中注册对应的规则，如下：

public static class RouteBuilderExtensions
  {    public static IRouteBuilder MapDomainRoute(
      this IRouteBuilder routeBuilder,string domain,string area,string controller)
    {
      if(string.IsNullOrEmpty(area)||string.IsNullOrEmpty(controller))
      {
        throw new ArgumentNullException("area or controller can not be null");
      }
      var inlineConstraintResolver = routeBuilder
        .ServiceProvider
        .GetRequiredService<IInlineConstraintResolver>();
        string template = "";
          RouteValueDictionary defaults = new RouteValueDictionary();
          RouteValueDictionary constrains = new RouteValueDictionary();
          constrains.Add("area", area);
          defaults.Add("area", area);
          constrains.Add("controller", controller);
          defaults.Add("controller", string.IsNullOrEmpty(controller) ? "home" : controller);
          defaults.Add("action", "index");
          template += "{action}/{id?}";//路径规则中不再包含控制器信息，但是上面通过constrains限定了查找时所要求的控制器名称
          routeBuilder.Routes.Add(new SubDomainRouter(routeBuilder.DefaultHandler, domain, template, defaults, constrains, inlineConstraintResolver));
      return routeBuilder;
    }
}

以上所述是小编给大家介绍的Asp.net Core MVC中怎么把二级域名绑定到特定的控制器上，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对易采站长站网站的支持！