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URIs in web.xml

Harikrishna Gorrepati
Ranch Hand

Joined: Sep 23, 2010
Posts: 423
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="" xmlns:xsi=""

[EDIT: added descriptive subject]

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Bear Bibeault
Author and ninkuma

Joined: Jan 10, 2002
Posts: 63334

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 in it becaue you don't own that domain name. So therefore, your URIs and Google's URIs can never collide.

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It is sorta covered in the JavaRanch Style Guide.
subject: URIs in web.xml
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