ApI vM
Unit-| : Spring s basiy
what is Spring Frame work
Jpring is a po pulas open Source Java applicaien
davelopment framwork
(Created by Rod Tohnson)
Jt supports dvelopi wg any Eind ot java opplicah
2-
oppicahony,
Such os tandalone appica hons web
data baje-driven applicotioons Vmo re
wa
3. The basic o bjeci ve of the trame work
dvelopment
t. re da e the Complexiby involved in
of application (enterprite)
applitaion
Sprirg ie not limie d to cntexprife develop
4 But ailable
ment, many proje ct are av undes Spring
-
mobile applicaton, loud- bayed e tc..
Such as
4ram sor k helps in developing a loosely
5. Spring whichore
Couple d appliCahon timple,
aintainle
easitu testable, reUfable k m
abySprin
spring ir evnywhere
A Spring flerible iby anie at deretrpd
rotkd by deyelope vi all oves the world
talGo ha
Contribuioike in tch Com panes
including Amalon, g ogle micyof oft. e t
Jping s Heribl,
(ibrasies
Spri) exteniort and third - pasty
lek develope build any opplicaion
is fast
Sprina
Ststup, fet hutdon s opiiled ereCuhon
Fast
modal
t aio Supporttkacive programnming
foy even greats etfieney
Spring is Secine
in dustry
Mats eosis to inteqrale with
deive truitworthy
tandad Sec iby schemes
Souiond
Ipring it Supporive
the reoources Fromay hime,
find
any where.
Spring VersOns
vev
Spirg x
Spring X
Spring 3
ao0 Sprirg3o
2o06 Spvingzo
2004
Fig Stble vertion o f Sprirg
Kiain features of Spri FFYamwork
Gavaarchive)
relatively Small
igkt -weight : +Spxing Jar
are
Spving Fromworle wiu be
.ßasic
les Hhan to mb
Non -Invasive ? Applicaion deelope d u3ing PoJo
Coupled : Sprirg eatures i lce DI V Aop
Loosely
help in uokely Covple d Co de
applicahon
Tnvei on of Contr o (ToC): It 4te Care of
obje ct ifecycle & dopendencies
Container: TE tate Cae of object c re oio,
Sprirg
initiaizoti on v menaginyobject
deperden cies.
NAPASpe Ct oriente d pro9ramming promoe
Teperahon of fvpporhrg funchond
fuch as vloggi
Vany acion
VSecuri y fom the Co ve of applicaion
Frame woykMoeles
Date A ccen layes
web laye
webmvc
web F Lux t asacho)
cwcb Socket
Cave beans Contert
apectiexpresion
Core SeY vice Los
Test
Spring Hodule groups.
Fig:
he Folo wing key Modle grps
features
h Cove Container - prsvides Cg
Data accen|Lntearohon Sup povH JDBe voPM
data a cces oPproach
webApp.
web -provides Support t. inmp lement
others- Fewother modles ike Teyt
Cort Container
Core
" kay Medle of spring Framewerk
ch aly
" TE provides fundamental Support on whi
other mede are deper dnt
Beans
. IE pro vide s a Baic prirg Container Called
ßean Fa ctory
Conttrt
" Tt þx ovidey one more pring Contaner Colled
Applicahon ConFertiCAc)
The AC prei innheni basic features of Beon
Fachry vao provides a ddihona feat ure
to fup port enterpvife aPp dewe loprnant
expre on longuoge CSPt
object valuey
-Atpect
Afpect OYientk d pregrommi)
rhis mnode helpt in iolati ngcrovi- Cutthg
funchoniby hon busines logic o pplication
nte Accen DntegTaion
Tava Database Connecivi ty CID BC)
I t previdey an abstact layes G Suppost
TPBC Calli to elathonal pß.
nkiect Relahonal Mappig (oPM)
fr popu oRM
, provides integahon upport
foliions Such a HbernaeJPA etc
Tra achon
Simple tronjacion ApL
the
" it pYovide
web
hoy a Cont aines coled web
Thi modle
which in berih basic
Contert
Pplicaion
Applicaion CentcKt Contai nes k
fatures rem
devetop web baed Ap pi
add fe atu res tt
web mvc
provid implemenltion of mvc Cmodal
Conho ler) poltenn t implement Serves Cide
present abon laye
wel
Supports featu xes t implenment REsThul
Servica
webFlux
Stack wit
pring So introd Ce d a reachre
Flry
web ame work Called SpYirg web
to Support Yeachve programmrg Springf web
websoctet
Ufed o 2 wy Comm Unca on bclient
Serven in webS ocket bosed we b App
This modle provides
provide require
Tequire dd fuppoyt
Su b test
Sprirg applicabions.
trameworlc Conhiquring toc Continer
Ufirg Java -baed Goni
Cmid)
,LOC Containeris a fran worlk foy implemtnig
Quomatd dependency injchom
ContoinN object Cre aion
PesPo hibilitiy of Toc Contoiner ave
" Dnstaniahng the be an
" wiring the bt ani tosethey
Configuring the beans
cycle
anaging the bean Enhre life
Spving Ioc
Cortne Create Busine objecs
Read depen den
dependend
Conhgu reion
Metadt
ib inshucio on what
’ The Container
instanhote Conigvre by eadirg
obiec H to
Coniqurahon Metadata.
ConiguYaion Metadate iS repre Jented in
The
CLutoahon oY)Java Co de
Jova
Advantages of LoC
blw diFfeat
fwitch
mabing it eajies ta
Implementabon
Modalaiby of a progrom
3 Greatks
eale in teshrg a progremey
Gre aten
basedConfquration SupporH a
New Java
clanes
Coniqurahon -anno toted
Bean annotated clas
Conhsuraion
public clan Aplicahon
-;Cops
Bean
public ckescs Cuuibmelervice cushreleva
eturn new Cuftomessevvite ():
public Ordes SeyviCe
return neu
atroduchon Dpendonty Injechon in SE (mid)
t if a fundamental aipe ct of Spring Frameuork
Hhrough wbich Spring Cantainey injec
obje cti inb otha abiect or dapendencie
Jti the mnain Fun chonaliy previdod by
Spring oc inveyion of Conhrd)
cnure laose coupling betsean
DI in Sprin9
the closes
DI
SDI
Need for DD
clas I
Suppofe as needi the object of
clanis faidt.
method, then
t opeate a misht eppea! to
be dependont on cla Î, it tof prohlems
it Cauld lead te
be ok, but hence Suck
System foilne ,
incding avoldad
dependenci heed t be
dependencies
Loc Pesolves thet (uch
Spring injec hn CDi) which mat
oith Dependen cy v Peuse.
to tet
he Co de e aie
Dependen y In jechon
stands for Settes Conthuc by
oveyYides the
H ic ueed t
propenby
injechon
Iis a paihal
ned initanc
Create
T doesnt
injected usig Setter metho
Depeodencies a re
lic clas Employee AJdres
pub
public sting ahy
Cmployee Add res Cstring Ciby) f
pubic
this ci ycityi
yStands fo CorstoCby dipendeniy injechm
’Dtdoesnot overrides the Selles propty
CpI ha ho pabanjechon.
Co) Cre ate neinytonCes
- Dependncic are injected usi na Canstructr
methods
public clan Enmployee Addres
pub c shirg ciby
public hing get ciby )f
return cibyi
public void l ciby Cst ingcily)
3
3
of autmahcally
t refe t. Copabiibg
lenin9 Spring Component,
dislevenirg and cgi f
sConingwort
Biet ovesvie of how a uto
Compbnnt Sconning
Component anning
a
) Spring provides onnotaion
Centain
Mechonilm with
annoohon ufed foY thi
he primay Spe cialire
Component and its
purpole is
vari ni,Gke Oservice
Repository
Con trolls
A Base pacta ge Coniguiaion
To nable Componnt Scanning we Ipecb
Lase pa ckage
n Sprig pplicatan
pComporsntScon (boare packnge "Com
3. Annetahon driven Confgurahon
Anrotahg claes with Compons nt
Compo nent
public clar My Corm ponsn
XmL Conhgur
alio enable Corpo ne nt JCening
Confis
Can >'element
Conponntf
< Contexti
we USe
iu
in x mL Coni9
SCan bare-package
ponent
c Conteti Com
tdte
helpr
Sprirj
Auto SCannirg in E Config
unt of Code
the amo
Registahon inihaized,itrcony
pximg Contoney is the
when S to lanes with
the Specihed paccases mahcatly
it aut
annotHo ns. omponent
Sfere olype
Tegisler there danes
Le
mating them
featu
Spring
Containers
provides 2 y Pe of Containe
Spring
: Bean factr
& Applica-hon Cantcxt
(: Boan Facty
Sprirg Conhaines with
)Dtisthe basic
to intenti ale| Cantigure &, Monoge
feahre
bean
Spring fameworkbeans Fachry.Beon
an
oY
facbn
intesta Ce repejenre
iS the main
Bean Eachry Conta nes
AppiCotion Gantex-
Sprirg fame work modle bpic:
Rafes
mattes
4 wri te
Contert.Applicahanenkect
oY3 Spxirg fameork
repregenhhg
is the mnain in stace
Applicatin antrtContai hes
C* Interoaliaton, Validahian
y Tt is the pre ferred Contoney for Spirg
applicaion deebpet
antages of Construchr injecho
are set in Constructar;
| immutablei once dapendencis
mokes
hey Cont be changed. it
clan, predi ctable,
2. cleax initbaiato
Dependencies are erplicHy declared mating
is requined for clan
it cas what
Fasies teshrg :
3
teting, as dependencies
unit
Cî Simplihes
moceed
art
dvantages of Seter injecho
A
Heribii y
as dependeneies Can
8I alltows tleribilihy
changed at runtime.
be
den cies
2 opiord Depen
threugh Setter Can be
dependen cis le Cion. eren
tun
Opiona the lay Con
provido d
ndeneJ ae not
Some dpen.
3. Defalt vaues
for dapendoncies
default valus
SI pro vide
Can be helph
which
