HTTP, htpp ://

HTTP, htpp ://

From: http://www.cnblogs.com/ranyonsue/p/5984001.html

HTTP URL

HTTP uses the Uniform Resource Identifier (URI) to transmit data and establish a connection. A URL is a special type of URI that contains sufficient information for searching a resource.

The URL, full name: UniformResourceLocator. The Chinese name is the unified Resource Locator. It is the address used to identify a resource on the Internet. The following URL is used as an example to describe the components of a common URL:

Http://www.aspxfans.com: 8080/news/index. asp? BoardID = 5 & ID = 24618 & page = 1 # name

From the above URL, we can see that a complete URL includes the following parts:
1. Protocol part: the Protocol Part of the URL is "http:", which indicates that the webpage uses the HTTP protocol. You can use multiple protocols in the Internet, such as HTTP and FTP. In this example, HTTP is used. The separator "//" after "HTTP"

2. domain name part: the domain name part of the URL is "www.aspxfans.com ". The IP address can also be used as the domain name in a URL.

3. Port: the port is followed by the domain name, and ":" is used as the separator between the domain name and the port. The port is not a required part of a URL. If the port part is omitted, the default port is used.

4. virtual directory part: starting from the first "/" after the domain name to the last "/", it is the virtual directory part. A virtual directory is not a required part of a URL. In this example, the virtual directory is "/news /"

5. File Name: Start from the last "/" after the domain name to "?" Is the file name section. If there is no "?", It starts from the last "/" after the domain name to "#". It is part of the file. If there is no "?" And "#", from the last "/" after the domain name to the end, are part of the file name. In this example, the file name is "index. asp ". The file name is not a required part of a URL. If this part is omitted, the default file name is used.

6. The Anchor part is the anchor part from "#" to the end. In this example, the anchor part is "name ". The anchor part is not a required part of a URL.

7. Parameter section: From "?" The part between the start and the end of "#" is the parameter part, also known as the search part and the query part. In this example, the parameter section is "boardID = 5 & ID = 24618 & page = 1 ". Parameters can have multiple parameters, and "&" is used as the separator between parameters.