routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}"
);
默认访问可以匹配到
https://localhost:44302/home/index/1
https://localhost:44302/home/index
https://localhost:44302/home
https://localhost:44302
也可以匹配到
https://localhost:44302/course/learn/1
-》CourseController.cs
在Views文件夹下,新建 Course 文件夹,然后右键 。 添加-》视图-》learn.cshtml
@{
ViewData["Title"]= "学习";
}
学习页面内容
//防止输入https://localhost:44302/home跳到博客专用路由
routes.MapRoute(
name: "home",
template: "home", //https://localhost:44302/home,跳到Home控制器中Index方法
defaults: new { controller = "Home", action = "Index" }
);
//博客专用路由
routes.MapRoute(
name:"blog",
template:"{name}", //https://localhost:44302/博客名,跳到Blog控制器中Index方法
defaults: new { controller ="Blog",action="Index"}
);
public class BlogController : Controller
{
public IActionResult Index(string name)
{
ViewData["BlogName"] = name;
return View();
}
}
@ViewData["BlogName"]博客
特性路由:在Action添加标注,来指定路由规则
1、Startup.cs 文件中 app.UseMvc(删除全部路由);
2、在Action添加标注
public class HomeController : Controller
{
[Route("")]
[Route("home")]
[Route("home/index")]
public IActionResult Index()
{
return View();
}
[Route("home/abc")]//https://localhost:44302/home/abc
public IActionResult About()
{
ViewData["Message"] = "Your application description page.";
return View();
}
}
注意:
A、如果2个方法有相同标注,为防止冲突,可以这样做
[HttpPost("home/abc")]
B、特性路由参数
//学习
[Route("course/learn/{id}")] //https://localhost:44302/course/learn/1
public IActionResult learn(int id)
{
return View();
}
组合路由:在 Controller 和Action 上添加路由标注
//课程
[Route("c")]
public class CourseController : Controller
{
[Route("index")] // https://localhost:44302/c/index
[Route("/idd")] // 以/开头的不是组合路由 https://localhost:44302/idd
public IActionResult Index()
{
return View();
}
}
在路由模板中使用
[controller] 表示和控制器同名的名称
[action] 表示和Action同名的名称
[area] 表示和区域同名的名称
[Route("[controller]")]
public class CourseController : Controller
{
[Route("[action]")] // https://localhost:44302/course/index
public IActionResult Index()
{
return View();
}
}
还可以在控制器上面使用多个路由特性,实现多个地址匹配一个控制器
[Route("[controller]")]
[Route("more")] // https://localhost:44302/more/index
public class CourseController : Controller
{
[Route("[action]")] // https://localhost:44302/course/index
public IActionResult Index()
{
return View();
}
}
还可以这样写
[Route("[controller]/[action]")] //https://localhost:44302/course/index
//也可以放到方法上
public class CourseController : Controller
{
public IActionResult Index()
{
return View();
}
}
通过创建一个实现了IRouteTemplateProvider的类。然后在类里面配置Template和Order还有Name这三个属性就可以实现特性标注了。
只要那个类或者Action增加了这个自定义标注就可以自动设置上面的Template特性。
namespace FirstCoreMvc.core
{
public class MyRouteAttribute : Attribute, IRouteTemplateProvider
{
public string Template => "www/[controller]/[action]";
public int? Order {get;set;}
public string Name { get; set; }
}
}
2、调用
public class BlogController : Controller
{
[MyRoute] //https://localhost:44302/www/blog/index
public IActionResult Index(string name)
{
ViewData["BlogName"] = name;
return View();
}
}