Setting up the front-end of a Web service PDF
Preview Setting up the front-end of a Web service
BBrruusssseellss II..TT.. WWoorrkkss sseemmiinnaarr 1166 MMaayy 11999955 SSeettttiinngg uupp aann IInntteerrnneett iinnffoorrmmaattiioonn sseerrvviiccee SSeettttiinngg uupp tthhee ffrroonntt--eenndd ooff aa WWeebb sseerrvviiccee Hans C.Arents MIPS group, dept. MTM, K.U.Leuven W. deCroylaan2, B-3001Leuven, Belgium [email protected] http://www.mtm.kuleuven.ac.be/~hca/ Copyright ©1995 MIPS group 1of 41 TThhee ffrroonntt--eenndd ooff aa WWeebb sseerrvviiccee n The World-Wide Web n Web browsers n HTML crash course – what is HTML? – structure, formatting – hyperlinks, images, maps – dialects: tables, backgrounds, . . . n HTML authoring tools and utilities n HTML authoring tips and tricks n The future of HTML and the Web Copyright ©1995 MIPS group 2of 41 WWhhaatt iiss tthhee WWoorrlldd--WWiiddee WWeebb?? n a distributed hypermedia system – distributed = client-server architecture – hypermedia = hypertext + multimedia which provides – rich contents: text, graphics, audio, video, ... – simple access: Gopher, FTP, newsgroups, e-mail, ... – single document interface to different information sources Copyright ©1995 MIPS group 3of 41 DDiissttrriibbuutteedd:: cclliieenntt--sseerrvveerr aarrcchhiitteeccttuurree BROWSERS MacintoshWorkstation PC URL + HTML + HTTP + MIME + CGI HTTP server Gopher serverFTP serverNNTP servergateway SERVERS Copyright ©1995 MIPS group 4of 41 HHyyppeerrmmeeddiiaa:: hhyyppeerrtteexxtt ++ mmuullttiimmeeddiiaa EExxeeccuuttiivvee ssuummmmaarryy MMaarrkkeett sshhaarree AAnnaallyyssiiss JJiinnggllee GGooaallss RReessuullttss CCoommmmeerrcciiaall DDaattaa CClliipp Copyright ©1995 MIPS group 5of 41 TThhee WWeebb aallpphhaabbeett ssoouupp n Client side – URL Universal Resource Locator addressing scheme: specifying Internet locations – HTML HyperText Markup Language content encoding: capturing hypermedia contents n Server side – HTTP HyperText Transfer Protocol transfer protocol: sending data requests & data – MIME Multimedia Internet Mail Extension format negotiation: exchanging multimedia data – CGI Common Gateway Interface service extension: enabling back-end engines Copyright ©1995 MIPS group 6of 41 WWeebb bbrroowwsseerrss n Macintosh browsers – Netscape the market leader – Mosaic for Macintosh,MacWeb, ... n Windows browsers – Netscape the market leader – Air Mosaic,WebSurfer,WinWeb, ... n UNIX browsers – Netscape the market leader – Mosaic an experimentaltestbed – HotJava the next generation browser Copyright ©1995 MIPS group 7of 41 WWhhaatt iiss HHTTMMLL?? n HTML = HyperText Markup Language – an application of SGML, but easy to learn by novices – describe structure of hypermedia documents – define hypertext links and anchors n HTML levels HTML level 3 HTML level 2 -tables, figures HTML level 1 -standardized DTD -maths, equations -structure, formatting -fill-in forms -hyperlinks, images 11999944 11999955 Copyright ©1995 MIPS group 8of 41 WWhhaatt iiss HHTTMMLL?? layoutmarkupstyles DOCUMENT logicalmarkupobjects font:Helvetica size:18pt documenttitle justification:left level1heading font:Palatino paragraph size:10pt numberedlist listelement font:Helvetica size:12pt weight:bold font:Palatino address size:8pt Copyright ©1995 MIPS group 9of 41 DDooccuummeenntt ssttrruuccttuurree n An HTML document has – a HEAD: document title, document information, ... – a BODY: document text <HTML> <HEAD> <TITLE>An example document</TITLE> </HEAD> <BODY> ... </BODY> </HTML> Copyright ©1995 MIPS group 10of 41
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