How are these addresses resolved?

How are these addresses resolved?
When I saw a website, I found their link was like this:
http://www.***.con/message/743a6d161ed6414c8dd0f5b959aa8a5e
I heard that I checked the source code of the web page and found that their hyperlinks were like this:

To-do Work

I can understand ***.asp?id=1&name=zhang or ***.aspx?id=1&name=zhang
But the above I don’t understand the link address. How can I find the specific access page in the above link address?
Thank you very much!

Web address resolution

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http://www.***.con/message/743a6d161ed6414c8dd0f5b959aa8a5e
re:
This is server-side url rewriting. Each server (apache, iis, nginx) rewrite rule syntax may have Difference

Backlog

re:
This is called address definition. I know that Java is like this. The above href attribute value is divided into
request address:/message/list. In java, you can add the suffix or omit
?catid=18&p=1, the parameter set of GET request
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url rewriting: by the server according to the rewriting rules Jump to the actual address

Address definition: This (/message/list) is the actual address.
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The address definition is generally in the configuration file? I don't know how to use .net. Please open all the configurations and take a look. The following is the address definition of java


ChannelServlet
com.apobates.servlet.ChannelServlet


ChannelServlet
/channel/build< ;/url-pattern>


The value of url-pattern is.

In a .net website, how to parse it?
re:
To define it, it must be written in accordance with the specifications in a configuration file that can be read by the server. If you want to go deeper, where can you study the architecture of the server?
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The server I am talking about is also called an application server. Like: IIS, apache, nginx,
java, there are many:
tomcat, jboss, sun application server, weblogic,...
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There is also a web container called
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Web services will provide an http interception mechanism
that is, when accessing http, you have the opportunity to process it in advance with your own code or predetermined configuration.
At this time you can parse the http connection into whatever you want