(HTTP (HyperTextTransferProtocol) is the abbreviation of Hypertext Transfer Protocol, which is used to transmit the data of WWW method. For the specific content of HTTP protocol, please refer to RFC2616. The HTTP protocol adopts a request/response model. The client sends a request to the server. The request header includes the request's method, URI, protocol version, and a MIME-like message structure including request modifiers, client information, and content. The server responds with a status line containing the message protocol version, success or error code plus server information, entity meta information, and possibly entity content.
http protocol basics.doc)