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URIs in web.xml  RSS feed

 
Harikrishna Gorrepati
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Hi, In general, we define the following in web.xml, What is the meaning of it ? Even though I am not connected to internet, I am able to use this file.

<web-app id="WebApp_ID" version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
</web-app>

[EDIT: added descriptive subject]
 
Bear Bibeault
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You are confusing URI with URL. A URI is just an identifier. Just because it looks like a URL doesn't mean it is a URL that locates a resource. It's just a name.

URI names could just as well have been something like "asdkjfadsjfgjasdhgfkjhdsagfjkhgdsajfha" or "Fred", but the format of a URL was chosen because by including a domain name in the URI, it's easy to avoid collisions. For example, you should never create a URI with google.com in it becaue you don't own that domain name. So therefore, your URIs and Google's URIs can never collide.
 
It is sorta covered in the JavaRanch Style Guide.
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