Python框架总是提供以优雅的方式处理URL的方法,比如像这样 http://somewhere.overtherainbow.com/userid/123424/
请注意结尾路径/userid/123424/
在ASP.NET中该如何实现呢?
Python框架总是提供以优雅的方式处理URL的方法,比如像这样 http://somewhere.overtherainbow.com/userid/123424/
请注意结尾路径/userid/123424/
在ASP.NET中该如何实现呢?
这个示例使用ASP.NET路由实现友好的URL。
应用程序处理的映射示例包括:
http://samplesite/userid/1234 - http://samplesite/users.aspx?userid=1234
http://samplesite/userid/1235 - http://samplesite/users.aspx?userid=1235
这个示例使用查询字符串,避免了对aspx页面进行任何修改的要求。
<system.web>
<compilation debug="true">
<assemblies>
…
<add assembly="System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</assemblies>
</compilation>
…
<httpModules>
…
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</httpModules>
</system.web>
<system.webServer>
…
<modules>
…
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</modules>
<handlers
…
<add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
</handlers>
</system.webServer>
定义从友好的URL到aspx页面的映射,保存请求的用户ID以备后用。
void Application_Start(object sender, EventArgs e)
{
RegisterRoutes(RouteTable.Routes);
}
public static void RegisterRoutes(RouteCollection routes)
{
routes.Add("UseridRoute", new Route
(
"userid/{userid}",
new CustomRouteHandler("~/users.aspx")
));
}
在路由处理之前,将查询字符串添加到当前上下文中。
using System.Web.Compilation;
using System.Web.UI;
using System.Web;
using System.Web.Routing;
public class CustomRouteHandler : IRouteHandler
{
public CustomRouteHandler(string virtualPath)
{
this.VirtualPath = virtualPath;
}
public string VirtualPath { get; private set; }
public IHttpHandler GetHttpHandler(RequestContext
requestContext)
{
// Add the querystring to the URL in the current context
string queryString = "?userid=" + requestContext.RouteData.Values["userid"];
HttpContext.Current.RewritePath(
string.Concat(
VirtualPath,
queryString));
var page = BuildManager.CreateInstanceFromVirtualPath
(VirtualPath, typeof(Page)) as IHttpHandler;
return page;
}
}
这是aspx页面上的参考代码。
protected void Page_Load(object sender, EventArgs e)
{
string id = Page.Request.QueryString["userid"];
switch (id)
{
case "1234":
lblUserId.Text = id;
lblUserName.Text = "Bill";
break;
case "1235":
lblUserId.Text = id;
lblUserName.Text = "Claire";
break;
case "1236":
lblUserId.Text = id;
lblUserName.Text = "David";
break;
default:
lblUserId.Text = "0000";
lblUserName.Text = "Unknown";
break;
}
<system.web>
<compilation debug="true">
<assemblies>
…
<add assembly="System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</assemblies>
</compilation>
…
<httpModules>
…
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
</httpModules>
</system.web>
<system.webServer>
…
<modules>
…
<add name="UrlRoutingModule" type="System.Web.Routing.UrlRoutingModule, System.Web.Routing, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35"/>
</modules>
<handlers
…
<add name="UrlRoutingHandler" preCondition="integratedMode" verb="*" path="UrlRouting.axd" type="System.Web.HttpForbiddenHandler, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"/>
</handlers>
</system.webServer>
定义从友好的URL到aspx页面的映射,并保存请求的用户ID以供后续使用。
void Application_Start(object sender, EventArgs e)
{
RegisterRoutes(RouteTable.Routes);
}
public static void RegisterRoutes(RouteCollection routes)
{
routes.Add("UseridRoute", new Route
(
"userid/{userid}",
new CustomRouteHandler("~/users.aspx")
));
}
将包含参数的路由上下文传递给页面。(请注意IRoutablePage的定义)
using System.Web.Compilation;
using System.Web.UI;
using System.Web;
using System.Web.Routing;
public interface IRoutablePage
{
RequestContext RequestContext { set; }
}
public class CustomRouteHandler : IRouteHandler
{
public CustomRouteHandler(string virtualPath)
{
this.VirtualPath = virtualPath;
}
public string VirtualPath { get; private set; }
public IHttpHandler GetHttpHandler(RequestContext
requestContext)
{
var page = BuildManager.CreateInstanceFromVirtualPath
(VirtualPath, typeof(Page)) as IHttpHandler;
if (page != null)
{
var routablePage = page as IRoutablePage;
if (routablePage != null) routablePage.RequestContext = requestContext;
}
return page;
}
}
请注意IRoutablePage的实现。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.Routing;
public partial class users : System.Web.UI.Page, IRoutablePage
{
protected RequestContext requestContext;
protected object RouteValue(string key)
{
return requestContext.RouteData.Values[key];
}
protected void Page_Load(object sender, EventArgs e)
{
string id = RouteValue("userid").ToString();
switch (id)
{
case "1234":
lblUserId.Text = id;
lblUserName.Text = "Bill";
break;
case "1235":
lblUserId.Text = id;
lblUserName.Text = "Claire";
break;
case "1236":
lblUserId.Text = id;
lblUserName.Text = "David";
break;
default:
lblUserId.Text = "0000";
lblUserName.Text = "Unknown";
break;
}
}
#region IRoutablePage Members
public RequestContext RequestContext
{
set { requestContext = value; }
}
#endregion
}
首先,这是带有两个动作的控制器代码。Index从模型获取用户列表,userid获取单个用户:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using System.Web.Mvc.Ajax;
namespace MvcApplication1.Controllers
{
public class UsersController : Controller
{
public ActionResult Index()
{
return View(Models.UserDB.GetUsers());
}
public ActionResult userid(int id)
{
return View(Models.UserDB.GetUser(id));
}
}
}
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Index.aspx.cs" Inherits="MvcApplication1.Views.Index" %>
<%@ Import Namespace="MvcApplication1.Controllers" %>
<%@ Import Namespace="MvcApplication1.Models" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title></title>
</head>
<body>
<div>
<h2>Index of Users</h2>
<ul>
<% foreach (User user in (IEnumerable)ViewData.Model) { %>
<li>
<%= Html.ActionLink(user.name, "userid", new {id = user.id })%>
</li>
<% } %>
</ul>
</div>
</body>
</html>
这里是userid.aspx视图,显示个人详细信息:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="userid.aspx.cs" Inherits="MvcApplication1.Views.Users.userid" %>
<%@ Import Namespace="MvcApplication1.Controllers" %>
<%@ Import Namespace="MvcApplication1.Models" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<div>
<table border ="1">
<tr>
<td>
ID
</td>
<td>
<%=((User)ViewData.Model).id %>
</td>
</tr>
<tr>
<td>
Name
</td>
<td>
<%=((User)ViewData.Model).name %>
</td>
</tr>
</table>
</div>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace MvcApplication1.Models
{
public class UserDB
{
private static List<User> users = new List<User>{
new User(){id=12345, name="Bill"},
new User(){id=12346, name="Claire"},
new User(){id=12347, name="David"}
};
public static List<User> GetUsers()
{
return users;
}
public static User GetUser(int id)
{
return users.First(user => user.id == id);
}
}
public class User
{
public int id { get; set; }
public string name { get; set; }
}
}
我一直在使用Intelligencia的URL重写器:
配置非常简单 - 可能只需要一个小时就可以全部设置好并运行。几乎没有什么问题...
我会推荐它,但是我应该提到我没有尝试过其他的。
祝你好运!
我已经为这个问题开发了一个开源的NuGet库,它会隐式地将EveryMvc/Url转换为every-mvc/url。
破折号连接的URL更加友好且易于阅读。小写URL往往会创建较少的问题。(更多请参见我的博客文章)
NuGet包:https://www.nuget.org/packages/LowercaseDashedRoute/
要安装它,只需通过右键单击项目并选择NuGet包管理器,在“在线”选项卡中输入“Lowercase Dashed Route”,然后它应该弹出。
或者,您可以在“程序包管理器控制台”中运行此代码:
Install-Package LowercaseDashedRoute
之后,您应该打开App_Start/RouteConfig.cs文件,注释掉现有的route.MapRoute(...)调用,并添加以下内容:
routes.Add(new LowercaseDashedRoute("{controller}/{action}/{id}",
new RouteValueDictionary(
new { controller = "Home", action = "Index", id = UrlParameter.Optional }),
new DashedRouteHandler()
)
);
就是这样。所有的URL都是小写、带破折号,并且在不需要你做任何其他操作的情况下隐式转换。