URI 패턴

https://stackoverflow.com/questions/176264/what-is-the-difference-between-a-uri-a-url-and-a-urn

What is the difference between a URI, a URL and a URN?

URI 벤다이어그램

URI -- Uniform Resource Identifier

URIs are a standard for identifying documents using a short string of numbers, letters, and symbols. They are defined by RFC 3986 - Uniform Resource Identifier (URI): Generic Syntax. URLs, URNs, and URCs are all types of URI.

URI는 짧은 문자열의 숫자, 문자 및 기호를 사용하여 문서를 식별하기 위한 표준입니다. RFC 3986 - URI(Uniform Resource Identifier): 일반 구문에 의해 정의됩니다. URL, URN 및 URC는 모두 URI 유형입니다.

URL -- Uniform Resource Locator

Contains information about how to fetch a resource from its location. For example:

리소스를 해당 경로에서 가져오는 방법에 대한 정보를 가지고 있습니다. 예를 들어...

• http://example.com/mypage.html
• ftp://example.com/download.zip
• mailto:user@example.com
• file:///home/user/file.txt
• tel:1-888-555-5555
• http://example.com/resource?foo=bar#fragment
• /other/link.html (A relative URL, only useful in the context of another URL)

URLs always start with a protocol (http) and usually contain information such as the network host name (example.com) and often a document path (/foo/mypage.html). URLs may have query parameters and fragment identifiers.

URL은 항상 프로토콜(프로토콜)로 시작하며 일반적으로 네트워크 호스트 이름(example.com)과 문서 경로(/foo/mypage.contract)와 같은 정보를 포함합니다. URL에는 쿼리 파라미터와 식별자가 있을 수 있습니다.

사실 URN은 몰라도 된다...

URN -- Uniform Resource Name

Identifies a resource by a unique and persistent name, but doesn't necessarily tell you how to locate it on the internet. It usually starts with the prefix urn: For example:

• urn:isbn:0451450523 to identify a book by its ISBN number.
• urn:uuid:6e8bc430-9c3a-11d9-9669-0800200c9a66 a globally unique identifier
• urn:publishing:book - An XML namespace that identifies the document as a type of book.

URNs can identify ideas and concepts. They are not restricted to identifying documents. When a URN does represent a document, it can be translated into a URL by a "resolver". The document can then be downloaded from the URL.