Request.url usage

We are developing Web applications that often need to parse every fragment of the Web address (Request.url) to do some judgment. For example, "Http://localhost:1897/News/Press/Content.aspx/123?id=1#toc", we want to get the first name of the website (News) to judge the different page title.

I think a lot of people use string IndexOf methods and Substring methods:

Request.Url.PathAndQuery.Substring (1, Request.Url.PathAndQuery.IndexOf ("/", 1)-1)

This is actually too buried without the strong design of. NET, in fact, the request object has been provided with a lot of convenient property to obtain a fragment of the Web site.

The table below is the Browser and usage of each of the Web addresses that are associated with the Request:

Web address: Http://localhost:1897/News/Press/Content.aspx/123?id=1#toc
Request.applicationpath	/
Request.PhysicalPath	D:\Projects\Solution\web\News\Press\Content.aspx
System.IO.Path.GetDirectoryName (Request.PhysicalPath)	D:\Projects\Solution\web\News\Press
Request.physicalapplicationpath	D:\Projects\Solution\web\
System.IO.Path.GetFileName (Request.PhysicalPath)	Content.aspx
Request.currentexecutionfilepath	/news/press/content.aspx
Request.filepath	/news/press/content.aspx
Request.path	/news/press/content.aspx/123
Request.rawurl	/news/press/content.aspx/123?id=1
Request.Url.AbsolutePath	/news/press/content.aspx/123
Request.Url.AbsoluteUri	Http://localhost:1897/News/Press/Content.aspx/123?id=1
Request.Url.Scheme	http
Request.Url.Host	localhost
Request.Url.Port	1897
Request.Url.Authority	localhost:1897
Request.Url.LocalPath	/news/press/content.aspx/123
Request.pathinfo	/123
Request.Url.PathAndQuery	/news/press/content.aspx/123?id=1
Request.Url.Query	? id=1
Request.Url.Fragment
Request.Url.Segments	/ news/ press/ content.aspx/ 123

So when you look at this watch, do you still want to use Request.Url.PathAndQuery.Substring (1, Request.Url.PathAndQuery.IndexOf ("/", 1)-1) to write this method?

Write request.url.segments[1 in this way]. Is Replace ("/", "") not short and straight? ^_^

Below is the code for producing the above form:

protected void Page_Load (object sender, EventArgs e)
{

StringBuilder sb = new StringBuilder ();

Sb. Append ("<table cellpadding=3 cellspacing=0 border=1>");

Sb. Append ("<tr><td colspan=2>");
Sb. Append ("website: Http://localhost:1897/News/Press/Content.aspx/123?id=1#toc" >http://localhost:1897/news/ PRESS/CONTENT.ASPX/123?ID=1#TOC sb. Append ("</td></tr>"); ");

//Request.applicationpath
Sb. Append ("<tr><td>");
Sb. Append ("Request.applicationpath");
Sb. Append ("</td><td>");
Sb. Append ("<b>" + Request.applicationpath + "</b>");
Sb. Append ("</td></tr>");

        //Request.PhysicalPath
         sb. Append ("<tr><td>");
        sb. Append ("Request.PhysicalPath");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.PhysicalPath + "</b>");
        sb. Append ("</td></tr>");

        //System.IO.Path.GetDirectoryName ( Request.PhysicalPath)
        sb. Append ("<tr><td>");
        sb. Append ("System.IO.Path.GetDirectoryName (Request.PhysicalPath)");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + System.IO.Path.GetDirectoryName (Request.PhysicalPath) + "</b>");
        sb. Append ("</td></tr>");

        //request.physicalapplicationpath
         sb. Append ("<tr><td>");
        sb. Append ("Request.physicalapplicationpath");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.physicalapplicationpath + "</b>");
        sb. Append ("</td></tr>");

        //System.IO.Path.GetFileName ( Request.PhysicalPath)
        sb. Append ("<tr><td>");
        sb. Append ("System.IO.Path.GetFileName (Request.PhysicalPath)");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + System.IO.Path.GetFileName (Request.PhysicalPath) + "</b>");
        sb. Append ("</td></tr>");

        //request.currentexecutionfilepath
         sb. Append ("<tr><td>");
        sb. Append ("Request.currentexecutionfilepath");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.currentexecutionfilepath + "</b>");
        sb. Append ("</td></tr>");

        //request.filepath
         sb. Append ("<tr><td>");
        sb. Append ("Request.filepath");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.filepath + "</b>");
        sb. Append ("</td></tr>");

        //request.path
         sb. Append ("<tr><td>");
        sb. Append ("Request.path");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.path + "</b>");
        sb. Append ("</td></tr>");

        //request.rawurl
         sb. Append ("<tr><td>");
        sb. Append ("Request.rawurl");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.rawurl + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.AbsolutePath
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.AbsolutePath");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.AbsolutePath + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.AbsoluteUri
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.AbsoluteUri");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.AbsoluteUri + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.Scheme
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.Scheme");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.Scheme + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.Host
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.Host");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.Host + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.Port
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.Port");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.Port + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.Authority
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.Authority");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.Authority + "</b>");
        sb. Append ("</td></tr>");

        //local Request.Url.LocalPath
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.LocalPath");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.LocalPath + "</b>");
        sb. Append ("</td></tr>");

        //request.pathinfo
         sb. Append ("<tr><td>");
        sb. Append ("Request.pathinfo");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + request.pathinfo + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.PathAndQuery
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.PathAndQuery");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.PathAndQuery + "</b>");
        sb. Append ("</td></tr>");

        //Request.Url.Query
         sb. Append ("<tr><td>");
        sb. Append ("Request.Url.Query");
        sb. Append ("</td><td>");
        sb. Append ("<b>" + Request.Url.Query + "</b>");
        sb. Append ("</td></tr>");

//Request.Url.Fragment
//On the principle you should not get any information from Request.Url.Fragment, because usually Browser does not send out #toc this part
Sb. Append ("<tr><td>");
Sb. Append ("Request.Url.Fragment");
Sb. Append ("</td><td>");
Sb. Append ("<b>" + Request.Url.Fragment + "</b>");
Sb. Append ("</td></tr>");

Request.Url.Segments
Sb. Append ("<tr>");
Sb. Append ("<td>");
Sb. Append ("Request.Url.Segments");
Sb. Append ("</td>");
Sb. Append ("<td>");
string[] segments = Request.Url.Segments;
foreach (string s in segments)
{
Sb. Append ("<b>" + S + "</b>");
Sb. Append ("<br/>");
}
Sb. Append ("</td>");
Sb. Append ("</tr>");

Sb. Append ("</table>");

Ltltable.text = sb. ToString ();
}

Request.url usage