de09b nhom13 bao cao

8/7/2019 De09B Nhom13 Bao Cao

1/21

Trng i hc Bch Khoa H NiVin Cng ngh thng tin v Truyn thng

Bo co Bi tp lnLP TRNH HNG I TNG

ti Xy dng Website Kt bn bn phng

Ging vin hng dn: ThS.Nguyn Th Thu TrangNhm sinh vin thc hin: Nhm 13- Lp 1

V Hng Hoan 20071195Nguyn c ng 20070813

Nguyn Thanh Tng 20073333 Trn Xun V 20073529

Lp: H thng thng tin k52


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Bi tp ln OOP Ging vin hng dn : ThS Nguyn Th Thu Trang

H Ni, thng 5 nm 2010

Nhm 13 Lp H thng thng tin k52 De09B


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MC LC

MC LC.2LI NI U...3PHN CNG THNH VIN TRONG NHM..4

I. Kho st, c t yu cu bi ton.............................................................51.1 M t yu cu bi ton.......................................................................51.2 Biu use - case...............................................................................61.3 c t use - case.................................................................................61.4 Biu hot ng..............................................................................8

II. Phn tch, thit k bi ton.......................................................................92.1 Biu trnh t..................................................................................92.2 Biu lp.........................................................................................92.3 Thit k chi tit lp.............................................................................92.4 Thit k c s d liu........................................................................10

III. Cng ngh v thut ton s dng............................................................113.1 .NET framework v nn tng ASP.NET..........................................113.2 Thut ton Matching........................................................................15

IV. Xy dng chng trnh minh ha...........................................................16

KT LUN V HNG PHT TRIN..........................................................17TI LIU THAM KHO.................................................................................18PH LC.........................................................................................................19



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LI NI U.Thi i ngy nay l thi i ca Cng ngh vi nn kinh t th trng, con

ngi ngy cng lm vic chm ch hn, vi hiu sut cao hn tng thu nhp,ci thin cuc sng cng nh kht vng khng nh bn thn. Cng ngh thng tin i vo cuc sng ca tng ngi, tng nh, hng ngy chng ta c th ch cn nh cng bit c tnh hnh th gii, gi xng, gi vng, sn chng khon. Do ,vic giao lu, tip xc gia con ngi vi con ngi ngy cng b hn ch. Conngi mun sng, pht trin ton din th cn c cc mi quan h cng nh bn b.

Nhng c phi lc no chng ta cng c thi gian cng nh iu kin tm bnu, v nhiu khi nhng ngi bn m mnh mong mun li khng gn m ckhi cch nhau hai u ca t nc. Vi mong mun kt ni con ngi vi con

ngi gn nhau hn, cng nh c th to iu kin mi ngi bit n nhau, tmc ngi bn nh ca mnh cng nh c th pht trin mi quan h ln ntm cao hn; chng em, nhm 13, chn ti Xy dng trang Web Kt bnbn phng.

Vi mc ch xy dng mt sn chi lnh mnh v b ch cho mi ngi,mi la tui cng nh tng lp trong x hi, chng em tm hiu rt nhiu cctrang kt bn khc nhau t c rt ra cc tng cng nh m hnh mttrang kt bn cn c. Vi n lc mun hon thin trang Web mt cch tt nht c

th, ngoi vic hc hi cc tng trn mng, chng em cng hc v c gng nmvng cc ngn ng, cng ngh cng nh m hnh xy dng trang Web kh lutrc .

Do kinh nghim lm Web cn yu, cng nh cha c nhiu hiu bit v cctrang kt bn nn bi tp ln ca chng em cn nhiu hn ch. Trong qu trnh lm ti, chng em rt cm n c Nguyn Th Thu Trang, ging vin trn lp rtnhit tnh gip , to mi iu kin chng em hon thnh bi tp ny.

H Ni, thng 5 nm 2010Nhm 13 lp H thng thng tin k52



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PHN CNG THNH VIN TRONG NHM.



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I. KHO ST, C T YU CU BI TON.1.1 M t yu cu bi ton.Xy dng trang Web kt bn bn phng.

Cho php mi ngi c th ng k lm thnh vin ca trang, nhp ccthng tin c nhn ca mnh vo h thng nh h tn, ngy sinh, nghnghip, s thch, s ght, yu cu tm bn, )

Sau khi ng nhp, ngi s dng s c xem danh sch thnh vinca Website, xem chi tit thng tin v mt thnh vin no cng nhchnh sa thng tin ng k ca mnh.

Thnh vin c th xem cc thng k ca trang Web nh trang Web cbao nhiu ngi, la tui th no, t l ngh nghip ra sao,

Thnh vin c th tm bn bng cch a ra cc yu cu ca mnh h thng tm danh sch cc bn tha mn, danh sch s c spxp gim dn theo mc tha mn, vi mi ngi tm c trongdanh sch th thnh vin cng c th xem c thng tin chi tit cangi .

Ngi qun tr h thng ( administrator ) c quyn xa cc thnh vinvi phm cng nh chnh sa cc thng tin ng k ca thnh vin.



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1.2 Biu use - case.

1.3 c t use case.

ng k: Ngi s dng bt buc phi nhp tn ng nhp ( nu tn ti th khng chp nhn ), mt khu, tn tht, ngy thng nm sinh



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( nu khng ph hp th h thng cng yu cu nhp li ), gii tnh,yu cu kt bn, email, ngh nghip, chn vi s thch v s ghttrong danh sch cng nh c th vit thm s thch v s ght ca

mnh nu cha c, ni sng ca mnh ( chi tit c thnh ph v qucgia ).

ng nhp: nu ngi dng nhp sai tn ng nhp hoc mt khu thhin ra thng bo yu cu nhp li, nu ti khon ngi dng l tikhon thng th Website s hin ra trang ch l danh sch 10 thnhvin mi nht cn nu ti khon ngi dng l admin th trang s hinra cc chc nng dnh cho admin.

Xem danh sch v thng tin thnh vin trong Website: d c ng

nhp hay khng th ngi s dng vn c quyn xem danh sch ccthnh vin trong trang Web, danh sch ny c hin th di dngnhiu trang , mi trang c 10 thnh vin, sp xp theo th t tng dnca ngy tham gia. Tuy nhin nu mun xem thng tin ca bt kthnh vin no th h thng s yu cu ngi s dng phi l thnhvin chnh thc, nu khng s chuyn qua ca s ng nhp.

Xem v sa thng tin c nhn: Sau khi ng nhp thnh cng thngi s dng c th nhn vo tn mnh thanh trng thi ng nhp

xem cng nh chnh sa thng tin c nhn ca mnh. Thnh vin cth i mt khu hoc cc thng tin khc, tuy nhin vn phi ph hpnh khi ng k v bt buc phi nhp li mt khu xc nhn thayi.

Tm bn da trn nhng tiu ch cho trc: Thnh vin s chn trongdanh sch cc tiu ch lc ra cc tiu ch cho ngi mnh cn tm,sau khi nhp xong v bt u tm th h thng s hin ra danh sch ccthnh vin ca Website gim dn theo mc ph hp v cng phntrang nh danh sch cc thnh vin, ngi dng cng vn c th nhnvo tn cc thnh vin trong danh sch mi xem thng tin chi titca thnh vin .

Xem thng k chi tit ca Website: D l thnh vin chnh thc hay lkhch th ngi s dng cng vn c xem cc thng k ca Website



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nh s lng thnh vin, phn b thnh vin theo tui, nghnghip, ni sng,

Quyn ca admin: admin ch c quyn xa cc thnh vin vi phm m

khng c chnh sa thng tin ca bt k thnh vin no, c th thmthnh ph v quc gia ch khng th xa i, chnh sa ngh nghip,s thch, s ght,

1.4 Biu hot ng.



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II.PHN TCH, THIT K BI TON.2.1 Biu trnh t.2.2 Biu lp.



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2.3 Thit k chi tit lp.City , Country , Info , Job , Liking , User l cc lp tng ng vi cc bng

trong database . Trong cc lp ny cha cc thuc tnh l cc kha , c th thmmt vi phng thc hoc thuc tnh h tr khc .

CityMapper , CountryMapper , InfoMapper , JobMapper , LikingMapper ,UserMapper l cc lp gm 2 phng thc ToModel v ToEntity dng chuyni d liu t database sang cc lp c th phia trn .

IService l interface m t cc chc nng ca h thng , cc chc nng nys c c th ha hn lp Service .



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2.4 Thit k C s d liu.



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III. CNG NGH V THUT TON.3.1 NET framework v nn tng ASP.NET.a) Gii thiu .NET framework..NET Framework l c s h tng cho vic xy dng, trin khai v chy cc

ng dng v dch v Web. N cung cp mt mi trng a ngn ng, da trn nncc chun vi hiu nng cao, cho php tch hp nhng u t ban u vi cc ngdng v dch v th h k tip v gii quyt nhng thch thc ca vic trin khaiv vn hnh cc ng dng trn quy m Internet. C s h tng NET Framework

bao gm ba phn chnh l B thc hin ngn ng chung (Common LanguageRuntime), mt tp phn cp cc th vin lp hp nht (Unified Class Libraries) vASP.NET.

Hon cnh ra i.Khi Web mi bt u c to ra, v c bn n l mt h thng tp tin ch

c th c, vi u im l n s dng nhng chun v giao thc cng nghip, chophp truy cp d dng n ni dung cc tp tin.

Vo bui ban u, Web c pht trin bi ngn ng lp trnh C v CGI.Thm vo , phn ln cc ng dng Web c xy dng trn nhng kin trc hailp (two-tier), gy ra nhng thch thc xung quanh kh nng bin i v tch hpng dng. Ly mt v d cho vn ny l mt Website kinh doanh cc thanh rm

ca nhng li khng bn cc rm ca, bt buc khch hng phi tm hiu t nht lhai site khc nhau c th mua mt b rm ca (bao gm thanh v rm ca) choca s ca h.

T nhng u th ca COM v s ra i cc cng ngh nh Active ServerPages (ASP) ca Microsoft nm 1996, cc Website cho ra nhiu tng tc ngidng hn. ASP thc hin iu mt cch d dng gi cc lgic doanh nghipv cc dch v nn tng m ngi pht trin cn thit thng qua cc ngn ngscript n gin. Vi s h tr cho COM, cc ng dng c vit mt cch d dng

thng qua kh nng "ng gi" lgic doanh nghip ny vo trong cc khi m-unc vit trong mt phm vi rng cc ngn ng lp trnh ph bin nh MicrosoftVisual Basic, C++ hay COBOL. Mc d vy, nhng chin lc ny cho cng vichp nht cc ng dng vn cn c thiu st.

Nhng tin b trong vic pht trin Web nhanh chng chuyn t kin trchai lp (two-tier) sang mt thit k N lp (N-tier) m cho php mt chin lc hp



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nht a dng hn qua vic a ra cc i tng doanh nghip hay lgic tng gia(middle-tier) ti vic hp nht Web vi i tc. Nhng thch thc trong vic ths dng lgic doanh nghip c "ng gi" theo kiu ny l phn ln cc ng

dng c thit k trn nn cc giao thc c quyn, "ghp ni cht". gii quyt nhng thch thc trong vic pht trin Internet hin ti v

tng lai, chng ta phi c kh nng vit cc ng dng trn bt c ngn ng lptrnh no, truy nhp vo bt c nn tng no. Chin lc pht trin ng dng rthp dn ny cho php cc cng ty tn dng cc h thng phn cng, cc ng dnghin hnh v thu cc nh pht trin c sn, m khng cn "bt" h phi chuynsang mt ngn ng lp trnh mi.

Gii php ny gi l cc dch v Web XML v n i din cho vic pht

trin ng dng cho th h k tip. Mt dch v Web XML l mt ng dng cho khnng hot ng ca n theo chng trnh qua Internet hay intranet khi s dngnhng giao thc v nhng chun Internet nh HTTP v XML.

Cc dch v Web XML gii quyt nhng thch thc i vi ngi pht trinWeb thng qua kt hp "ghp ni cht", nhng u th ca vic tnh ton N-tier vi"ghp ni lng", v nhng khi nim hng thng ip ca Web. Bn hy coi ccdch v Web XML nh lp trnh thnh phn trn Web.

.NET Framework l thnh qu ti u ca s kt hp cng sc v tr tu caMicrosoft, nhm to ra mt nn tng cho vic xy dng v trin khai nhanh chngcc dch v v ng dng Web XML. Tm nhn ca nn tng .NET Framework kthp mt m hnh lp trnh n gin, d s dng vi cc giao thc m v bin ic ca Internet. t c tm nhn ny, vic thit k .NET Framework nhmmt s mc ch:

- S hp nht thng qua cc chun Internet cng cng.- Kh nng bin i c thng qua mt kin trc ghp ni lng- H tr nhiu ngn ng.- Nng cao nng sut cho cc nh pht trin.

- Bo v nhng s u t thng qua vic bo mt c ci tin- Tn dng nhng dch v ca h iu hnh.

Nhng c tnh ca .NET framework.

H tr cc chun dch v Web XML.

Hiu sut cho ngi pht trin.



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S nhy cm khi gii quyt cc thch thc i vi doanh nghip thinay.

Ci thin cc thao tc.

b) Kin trc .NET framework.Chng ta bit .NET Framework bao gm ba phn l b thc thi ngn ng

chung (Common Language Runtime), cc lp lp trnh hp nht hay cn gi l ccth vin lp c s (Base Class Libraries) v mt phin bn cu thnh caMicrosoft Active Server Pages gi l Microsoft ASP.NET. Trn thc t, ASP.NETv Windows Forms l hai thnh phn nm trong Base Class Libraries, nn trongmt s ti liu .NET Framework c gii thiu bao gm 2 phn chnh lCommon Language Runtime (CLR) v Base Class Libraries (BCL). Mt trong cc

thnh phn ny u c vai tr cc k quan trng trong vic pht trin cc dch vv cc ng dng .NET.

Common Language Runtime (gi tt l b thc thi) c xy dng trn ccdch v h iu hnh. N chu trch nhim thc hin cc ng dng v m bo cc

phn lin quan n ng dng u c p ng nh qun l b nh, an ninh bomt, tch hp ngn ng..v.v. B thc thi bao gm nhiu dch v h tr pht trin vtrin khai ng dng cng nh ci thin tnh ng tin cy ca ng dng. Tuy vy,nhng nh pht trin trn thc t khng tng tc vi CLR. H s dng mt tp

cc th vin lp c s c xy dng bn trn b thc thi ny thng qua cc ngnng lp trnh. Nh l mt phn ca cc lp c s, .NET Framework cn cung cpmt m hnh lp trnh ng dng Web ASP.NET v Windows Forms ( xy dngcc ng dng trn Windows). Ring ASP.NET cung cp cc thnh phn v ccdch v mc cao hn nhm mc ch pht trin cc dch v v cc ng dng WebXML.

Common Language Runtime.Nh cc bn bit, cc ngn ng lp trnh khc nhau u cung cp mt

runtime (b thc thi) v .NET Framework khng phi l mt ngoi l. Tuy vy bns thy b runtime ny l kh c bit so vi phn ln cc runtime chng ta vn sdng. Common Language Runtime trong .NET Framework qun l s thc hinm v cung cp s truy cp vo nhiu loi dch v gip cho qu trnh pht trinc d dng hn. CLR c pht trin tm cao hn so vi cc runtime trcy nh VB-runtime chng hn, bi n t c nhng kh nng nh tch hp cc



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ngn ng, bo mt truy cp m, qun l thi gian sng ca i tng v h tr gli.

M c bin dch v hng ti CLR c tn "managed code". "Managed

code" cung cp siu d liu (metadata) cn thit cho CLR cung cp cc dch vh tr a ngn ng, bo mt m, qun l thi gian sng ca i tng v qun l

b nh.Base Class Libraries.Th vin cc lp c s .NET Framework cung cp mt tp cc lp ("APIs"),

hng i tng, c th bc v c th m rng v chng c s dng bi bt cngn ng lp trnh no. Nh vy, tt c cc ngn ng t Jscript cho ti C ++ tr nn

bnh ng, v cc nh pht trin c th t do la chn ngn ng m h vn quen

dng. Tp cc lp, cc kiu gi tr v giao din ny c t chc bng mt hthng cc Namespace (xem nh ngha phn di). Bng 1 di y a ra mt mt chi tit nhng Namespace c sn trong .NET Framework. Mt iu rt quantrng l chng ta khng ch gii hn cc Namespace ny. Bn c th t to ra

Namespace v s dng chng trong ng dng ca bn hay cng c th s dng ccNamespace ca i tc th ba ang c y trn th trng. Mt v d cho trnghp ny l Namespace System.Data.Oracle.

c) ASP.NET.ASP.NET l mt tp cc lp nm trong th vin lp c s. ASP.NET cung

cp mt m hnh ng dng Web di dng mt tp cc control (i tng iukhin) v c s h tng gip bn to ra cc ng dng Web mt cch d dng. Cccontrol ny c xy dng cho cc ng dng trn my phc v (hay cn gi lWeb Forms) phn nh nhng control giao din ngi dng HTML c th nhListbox, Textbox v Button v mt tp b sung cc control Web phc tp hn nhcalendars chng hn. Mt c tnh quan trng ca cc control trn l chng cvit thch nghi vi nhng kh nng ca cc ng dng my khch. Ni cch khc

cc i tng iu khin Web forms c th "nh hi" thy my khch ang yucu mt trang (page) v tr li ngi dng mt cch thch hp (v d nh WMLcho phone hay Dynamic HTML cho Internet Explorer 5.5).

ASP.NET cng cung cp nhng c tnh nh qun l trng thi "clustersession" v phc hi tin trnh gip gim bt s lng m m mt ngi pht trin

phi vit v tng tin cy ng dng. Ngoi ra ASP.NET cho php cc nh pht



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trin chuyn giao phn mm nh l mt dch v. Khi s dng nhng c tnh ccdch v Web XML ASP.NET, cc nh pht trin ASP.NET c th vit nhng giaodch logic n gin v c s h tng ASP.NET s chu trch nhim chuyn dch v

theo ng SOAP v cc giao thc cng cng khc. ASP.NET lm vic vimi ngn ng v cng c (bao gm c Visual Basic, C++, C#, v JScript).

3.2 Thut ton Matching.Thut ton Knuth-Morris-Pratt l thut ton c phc tp tuyn tnh u

tin c pht hin ra, n da trn thut ton brute force vi tng li dng linhng thng tin ca ln th trc cho ln sau. Trong thut ton brute force v chdch ca s i mt k t nn c n m-1 k t ca ca s mi l nhng k t caca s va xt. Trong c th c rt nhiu k t c so snh ging vi mu

v by gi li nm trn ca s mi nhng c dch i v v tr so snh vi mu.Vic x l nhng k t ny c th c tnh ton trc ri lu li kt qu. Nh ln th sau c th dch i c nhiu hn mt k t, v gim s k t phi so snhli.

Xt ln th ti v tr j, khi ca s ang xt bao gm cc k t y[jj+m-

1] gi s s khc bit u tin xy ra gia hai k t x[i] v y[j+i-1].

Khi x[1i]=y[ji+j-1]=u v a=x[i]y[i+j]=b. Vi trng

hp ny, dch ca s phi tha mn v l phn u ca xu x khp vi phn ui

ca xu u trn vn bn. Hn na k t c ngay sau v trn mu phi khc vi kt a. Trong nhng on nh v tho mn cc tnh cht trn ta ch quan tm n

on c di ln nht.

Dch ca s sao cho v phi khp vi u v c a

Thut ton Knuth-Morris-Pratt s dng mng Next[i] lu tr di

ln nht ca xu v trong trng hp xu u=x[1i-1]. Mng ny c th tnh

trc vi chi ph v thi gian l O(m) (vic tnh mng Next thc cht l mt bi

ton qui hoch ng mt chiu).


u

u

v

b

c

a

x

y

x

j i+j-1


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Thut ton Knuth-Morris-Pratt c chi ph v thi gian l O(m+n) vi nhiunht l 2n-1 ln s ln so snh k t trong qu trnh tm kim.



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IV. XY DNG CHNG TRNH MINH HA.4.1 Kt qu chng trnh minh ha.V c bn, bi tp ln hon thnh c cc yu cu ca ti nhng

ng nhp/ng k, tm bn, xem thng tin thnh vin, Tuy nhin, nu xt ncc yu t thc t v cc yu cu nm ngoi bi th chng trnh vn cn nhiuthiu xt nh trnh by cha c khoa hc v cn i, cn thiu vi chc nngnh nh upload nh thnh vin, gi tin nhn gia cc thnh vin v cc yu t bomt.

4.2 Giao din chng trnh.Xem chi tit trong phn Hng dn s dng trong folder GUIDE.



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KT LUN V HNG PHT TRIN1. T chc d n.

Thnh vin:V Hng Hoan Trng nhm

Nguyn c ngNguyn Thanh TngTrn Xun V

Thng tin lin lc, hp: Nhm lin lc ch yu thng qua mail v tinnhn SMS. Cc bui hp nhm s din ra vo chiu th 2 hng tun.

Cng c s dng: Microsoft Visual Studio .NET 2008 v SQL Server2005.

2. K hoch lm vic.Nhm s va hc ngn ng (C#, HTML) cng nh cng ngh (ASP.NET,

m hnh MVC), nu c vng mc th s trao i trong bui hp nhm. Do vichc ngn ng mi c phn kh khn nn yu cu v thi gian khng qu cao, ntun 10 c kh nng vit c trang Web n gin l c. Tun 11, 12 s dnhon thnh cc modul trong project v hon thin vo tun 13.



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TI LIU THAM KHO.Phn tch v thit k h thng thng tin - Nguyn Vn Ba - 2003.V ghi mn Lp trnh hng i tng do c Nguyn Th Thu Trang ging

dy.Cc ti liu hc ASP.NET v s dng SQL server trong folder REF km

theo.Qu trnh thc tp ti cng ty c phn CIS.

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