Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 300w\9fn&
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 0stc$~~v
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 D%yY&q;
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 =iKl<CqI$E
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分页支持类:
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java代码: yTd8)zWq
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package com.javaeye.common.util; S$Zi{bU`G
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import java.util.List; BXYH&2]Q
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publicclass PaginationSupport { 9|}Pf_5]%[
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publicfinalstaticint PAGESIZE = 30; ZzupK^5Z
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privateint pageSize = PAGESIZE; .nrllVG%`
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privateList items; rjK`t_(=
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privateint totalCount; sg^|dS{3D
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privateint[] indexes = newint[0]; <8^x
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privateint startIndex = 0; ,.W7Z~z
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public PaginationSupport(List items, int tWIJ,_8l
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totalCount){ \\FT.e6
setPageSize(PAGESIZE); V3t#kv
setTotalCount(totalCount); <ErX<(0`ig
setItems(items); l,4O
setStartIndex(0); 'V]&X.=zC
} "G K9Y
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public PaginationSupport(List items, int RTm/-6[N
9dhEQ=K{3
totalCount, int startIndex){ 9VnBNuT
setPageSize(PAGESIZE); ^'V :T Y
setTotalCount(totalCount); rKrHd
setItems(items); f
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setStartIndex(startIndex); k9;^|Cm
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} c;$4}U4
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public PaginationSupport(List items, int cQK-Euum
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totalCount, int pageSize, int startIndex){ *i]?J
setPageSize(pageSize); (jc& Fk
setTotalCount(totalCount); IA@>'O
setItems(items); (h3L=
setStartIndex(startIndex); m$W>~
} E&P2E3P
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publicList getItems(){ 'k X8}bx
return items; H&)}Z6C"
} +P2oQ_Fk`9
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publicvoid setItems(List items){ e|\xFV=4
this.items = items; gA!@oiq@
} Wb-C0^dTn
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publicint getPageSize(){ J ay"
return pageSize;
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} "o&8\KSs
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publicvoid setPageSize(int pageSize){ eThaH0
this.pageSize = pageSize; $eYL|?P50h
} KC6Cg?y^
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publicint getTotalCount(){ e7RgA1
return totalCount; K*>%,mP$i
} q!ZM Wg
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publicvoid setTotalCount(int totalCount){ !ZYPz}&N_
if(totalCount > 0){ `x[Is$
this.totalCount = totalCount; 6O7s^d&K
int count = totalCount / Wo1xZZ
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pageSize; X7},|cmD_
if(totalCount % pageSize > 0) mM,HMrgLqK
count++; $4nAb^/
indexes = newint[count]; : {p'U2
for(int i = 0; i < count; i++){
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indexes = pageSize * "b} mVrFh
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i; vYed_'_
} !D#"+&&G8
}else{ hmu>s'
this.totalCount = 0; 7Y5 r3a}%
} [.gk{> #
} vd%g'fTy9
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publicint[] getIndexes(){ zjpZ] $
return indexes; : ky`)F`
} wjA
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publicvoid setIndexes(int[] indexes){ QyD0WC}i
this.indexes = indexes; 'hpOpIsHa
} +%JBr+1#\
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publicint getStartIndex(){ Q^(CqQo!<
return startIndex; kxMvOB$
} $w0TEO!
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publicvoid setStartIndex(int startIndex){ Jo5B mh0
if(totalCount <= 0) YM}a>o
this.startIndex = 0; F]aoTy
elseif(startIndex >= totalCount) h?mDtMCw2
this.startIndex = indexes S,m(
5\+*ml
[indexes.length - 1]; +A|
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elseif(startIndex < 0) EoAr}fI
this.startIndex = 0; Q{l,4P
else{ bA^uzE
this.startIndex = indexes _~<sb,W
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[startIndex / pageSize]; $.PRav
} RM;a]g*
} g#5R||r
}"D;?$R!
publicint getNextIndex(){ ?I}RX~Tgg
int nextIndex = getStartIndex() + fVbjU1N
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pageSize; ]auvtm-[
if(nextIndex >= totalCount) b] 5weS-<
return getStartIndex(); R#T-o,m
else >q eDb0
return nextIndex; Ykxk`SJ
} 7%*#M#(T
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publicint getPreviousIndex(){ I!lDKS,b
int previousIndex = getStartIndex() - Cv**iW
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pageSize; BEDkyz;:
if(previousIndex < 0) yf&g\ke
return0; O^L]2BVC
else i2=- su
return previousIndex; W/Dd7G#IC
} L@N%S Sf
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} 4V@%Y,:ee
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抽象业务类 )w7vE\n3
java代码: 3~>-A=
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/** CMj =4e
* Created on 2005-7-12 ,'8%'xit
*/ roADC?@r
package com.javaeye.common.business; %U\,IO `g
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import java.io.Serializable; 3&hR#;,"X
import java.util.List; zp}7p~#k^
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import org.hibernate.Criteria; Q((&Q?Vi
import org.hibernate.HibernateException; %*D=ni#(sT
import org.hibernate.Session; Qit&cnO
import org.hibernate.criterion.DetachedCriteria; `16'qc
import org.hibernate.criterion.Projections; 1j?P$%p
import E'08'8y
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org.springframework.orm.hibernate3.HibernateCallback; DbMVbgz<e
import V]H(;+^P
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org.springframework.orm.hibernate3.support.HibernateDaoS UqK.b}s
]s\r3I]
upport; *:%&z?<Fw
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import com.javaeye.common.util.PaginationSupport; 8E%LhA.
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public abstract class AbstractManager extends |AYii-g
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HibernateDaoSupport { 7:4c\C0
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privateboolean cacheQueries = false; f_~T
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privateString queryCacheRegion; )D8op;Fn
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publicvoid setCacheQueries(boolean 8eXeb|?J
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cacheQueries){ %' DOFiU
this.cacheQueries = cacheQueries; #Vk?
} )!8qJQD
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publicvoid setQueryCacheRegion(String yYz{*hq
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queryCacheRegion){ 6z\!lOVjb
this.queryCacheRegion = a 0SZw
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queryCacheRegion; q{w|`vIb
} |"*P`C=
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publicvoid save(finalObject entity){ [2@:jLth=
getHibernateTemplate().save(entity); N9-0b
} rJiF2 W
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publicvoid persist(finalObject entity){ E@ea?Sx
getHibernateTemplate().save(entity); #2]*qgA4
} A/y|pg5
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publicvoid update(finalObject entity){ bxE~tsM"@Y
getHibernateTemplate().update(entity); aL(G0@(
} j4XVk@'OX
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publicvoid delete(finalObject entity){ O=%Ht-kOc
getHibernateTemplate().delete(entity); Snkb^Kt
} ffP]U4
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publicObject load(finalClass entity, P'KA-4!
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finalSerializable id){ ag'hHFV
return getHibernateTemplate().load @`[e1KQ
{
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(entity, id); Cu@q*:'
} , Q0Y} )
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publicObject get(finalClass entity, .@{v{
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finalSerializable id){ c/Pql!h+
return getHibernateTemplate().get `:&RB4Z
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(entity, id); lf"w/pb'
} EjfQF C
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publicList findAll(finalClass entity){ B Ewa QvQ!
return getHibernateTemplate().find("from ?s, oH
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" + entity.getName()); Sh#N5kgD
} lJ3VMYVrUP
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publicList findByNamedQuery(finalString '{WEyhaS
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namedQuery){ fr~Eb'8
return getHibernateTemplate "|JbdI]%P
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().findByNamedQuery(namedQuery); .u mqyU~
} c#x~x
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sNs;
publicList findByNamedQuery(finalString query, B
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finalObject parameter){ 3w^W6hN)
return getHibernateTemplate > %KEMlKZ
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().findByNamedQuery(query, parameter); g=mKTk
} 4}C
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publicList findByNamedQuery(finalString query,
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finalObject[] parameters){ {N]WVp*R
return getHibernateTemplate ;BuMzG:tmZ
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().findByNamedQuery(query, parameters); eFsl
} gq?O}gVD
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publicList find(finalString query){ g7323m1=
return getHibernateTemplate().find @7}XBg[pI
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(query); Rir0^XqG
} |ufT)+:
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publicList find(finalString query, finalObject -aBhN~
g@ J F
parameter){ <yl@!-'J7
return getHibernateTemplate().find OGcdv{,P
@(L}:]{@
(query, parameter); 25Ee+&&%
} rOOo42YW`
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public PaginationSupport findPageByCriteria cEf"m?w
@~vg=(ic(
(final DetachedCriteria detachedCriteria){ R:n|1]*f3X
return findPageByCriteria ([<{RjPb
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); I;}U/'RR>
} ^+-QY\N
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public PaginationSupport findPageByCriteria QeF:s|[
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(final DetachedCriteria detachedCriteria, finalint F4~OsgZ'N
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startIndex){ @5&57R3>
return findPageByCriteria n3?P8m$
psvc,V_*
(detachedCriteria, PaginationSupport.PAGESIZE, i-w<5pGnf
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startIndex); y~*B%KnEQy
} ^5MM<73
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public PaginationSupport findPageByCriteria ,Gy,bcv{
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(final DetachedCriteria detachedCriteria, finalint 8p829
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pageSize, +s_a{iMVP
finalint startIndex){ Zbl*U(KU?
return(PaginationSupport) ?#c "wA&
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getHibernateTemplate().execute(new HibernateCallback(){ )J]NBE:8
publicObject doInHibernate IZdWEbN1
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(Session session)throws HibernateException { Vel(+HS
Criteria criteria = ?VxQ&^|
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detachedCriteria.getExecutableCriteria(session); gLSI?
int totalCount = _"F=4`lJ
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((Integer) criteria.setProjection(Projections.rowCount |:SV=T:
6Jy%4]wK
()).uniqueResult()).intValue(); ZuWhgnp
criteria.setProjection e+#Oj
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(null); >=rniHs=?7
List items = iuqJPW^}
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criteria.setFirstResult(startIndex).setMaxResults ;s~xS*(C
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(pageSize).list(); OWz{WV.
PaginationSupport ps = R4)l4rnO
6`7`herE}
new PaginationSupport(items, totalCount, pageSize, _\+0e:Ae
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startIndex); K~]Xx~F
return ps; 9*JxP%8T~X
} fFC9:9<
}, true); aiX4;'$x!
} V@LBy1z
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public List findAllByCriteria(final 6}@T^?
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DetachedCriteria detachedCriteria){ B4*,]lS?
return(List) getHibernateTemplate Ts, U T L
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().execute(new HibernateCallback(){ 6qV1_M#
publicObject doInHibernate )jwovS?V
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(Session session)throws HibernateException { 'M?pg$ta_V
Criteria criteria = U4a8z<l$
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detachedCriteria.getExecutableCriteria(session); Y$^vA[]c>
return criteria.list(); -q)|I|y*7
} |VE.khq#
}, true); \p\p~FVS
} 1h162
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public int getCountByCriteria(final &9Z@P[f
kVeY} 8
DetachedCriteria detachedCriteria){ %;_EWs/z8
Integer count = (Integer) i5WO)9Us
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getHibernateTemplate().execute(new HibernateCallback(){ Ir` l*:j$
publicObject doInHibernate CyVi{"aF3
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(Session session)throws HibernateException { =JTwH>fD
Criteria criteria = a~VW?wq
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detachedCriteria.getExecutableCriteria(session); S"+#=C
return j$u
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criteria.setProjection(Projections.rowCount "FE%k>aV@v
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()).uniqueResult(); 1)xj 'n
} /ml+b8@
}, true); K)Ya%%6[U#
return count.intValue(); 55y}t%5
} $Zi{1w
} >Ir?)h
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用户在web层构造查询条件detachedCriteria,和可选的 5M>SrZH
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startIndex,调用业务bean的相应findByCriteria方法,返回一个 4dz Ym+vJm
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PaginationSupport的实例ps。 !}eq~3
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ps.getItems()得到已分页好的结果集 s}^W2
ps.getIndexes()得到分页索引的数组 #5{lOeN
ps.getTotalCount()得到总结果数 Q\^BOdX^`
ps.getStartIndex()当前分页索引 tnXW7ej ^
ps.getNextIndex()下一页索引 wqE2n
ps.getPreviousIndex()上一页索引 =xH>,-8}
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 Me+)2S 9
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,尤其是上面的示例代码,让我着实觉得该对我原来的分页查询做 o}D7 $6
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一下代码重构了。 Ej@N}r>X
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我把原本我的做法也提供出来供大家讨论吧: Z 2uU'T
P6'0:M@5
首先,为了实现分页查询,我封装了一个Page类: ~4 S6c=:
java代码: } f!wQxb
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/*Created on 2005-4-14*/ Ys5Iqj=mp
package org.flyware.util.page; gF M~M(
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/** {mHxlG)
* @author Joa "W}+~Sn
* h5; +5B}D
*/ gi/W3q3c6
publicclass Page { 5) 4?i p
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/** imply if the page has previous page */ 0w$1Yx~C
privateboolean hasPrePage; ',Oc+jLR
pAtxEaXh
/** imply if the page has next page */ y$|OE%S
privateboolean hasNextPage; DC$x}1
(jh0cy}|]
/** the number of every page */ B/EGaYH
privateint everyPage; {RH)&k&%
Fz$^CMw5K
/** the total page number */ W$R@Klz
privateint totalPage; {f>e~o
]"vpCL
/** the number of current page */ nlx~yUXL4
privateint currentPage; d:n.Vp
n*qn8Dq
/** the begin index of the records by the current )]JQlm:H
l'\m'Ioh
query */ tH4+S?PI
privateint beginIndex; QJH~YV\%
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/** The default constructor */ qEPC]es|T
public Page(){ LkJ-M=y
)}\J
} n6GB2<y
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/** construct the page by everyPage {,o 0N\(
* @param everyPage sCAWrbOe>
* */ X4v0>c
public Page(int everyPage){ OWHHN<
this.everyPage = everyPage; UZW)%
} 14Jkr)N
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/** The whole constructor */ xNxSgvco,
public Page(boolean hasPrePage, boolean hasNextPage, Z
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int everyPage, int totalPage, b U>.Bp]
int currentPage, int beginIndex){ , *Z!Bd8
this.hasPrePage = hasPrePage; <3bFt [
this.hasNextPage = hasNextPage; ca$K)=cDW
this.everyPage = everyPage; A!`Q[%$
this.totalPage = totalPage; h Qbz}x
this.currentPage = currentPage; *h"7!g
this.beginIndex = beginIndex; bX&=*L+h6
} jL#`CD
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/**
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* @return D3;#:
* Returns the beginIndex. p!~V@l
*/ X~g~U|B@
publicint getBeginIndex(){ ,A!0:+
return beginIndex; p+1kU1F0
} Sa$-Yf
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/** 'WJ3q|o/
* @param beginIndex IdWFG?b3
* The beginIndex to set. 0\yA6`}!
*/ +Rd;>s*.Y
publicvoid setBeginIndex(int beginIndex){ -f8iq[F5
this.beginIndex = beginIndex; V5HK6- T
} g,5Tr_
;Z{jol
/** sb*)K,U
* @return =E-V-?N\
* Returns the currentPage. ]9NA3U7F
*/ `KmM*_a
publicint getCurrentPage(){ ~~3 BV,
return currentPage; xEqr3(
} R"qxT.P(
E(Y}*.\]#s
/** XlU`jv+
* @param currentPage W v!%'IB
* The currentPage to set. ]*vv=@"`e
*/ 4xD`Z_U
publicvoid setCurrentPage(int currentPage){ a}/ A]mu
this.currentPage = currentPage; 8{4jlL;"`?
} }:hN}*H
/}$D&KwYg
/** 7y'2
* @return aqN6.t
* Returns the everyPage. Lk1e{!a
*/ v_e3ZA:%
publicint getEveryPage(){ c^EU&q{4
return everyPage; F>s5<pKAX
} Fhk`qh'i
qO}Q4a+
/** 9._owKj
* @param everyPage J'Y;j^
* The everyPage to set. 4b:q84
*/ |'N)HH>;
publicvoid setEveryPage(int everyPage){ 2N[/Cc2Tg/
this.everyPage = everyPage; q2~@z-q)b
} Alpk5o5B
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/** qv.s-@l8
* @return 3DS&-rN
* Returns the hasNextPage. Iju9#b6
*/ F!&$Z
.
publicboolean getHasNextPage(){ |WDMyKf6J
return hasNextPage; D
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} ?I332,,q
T43Jgk,
/** 6_kv~`"t Z
* @param hasNextPage nb}rfd.
* The hasNextPage to set. -|_MC^)
*/ .I
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publicvoid setHasNextPage(boolean hasNextPage){ _%:$sAj
this.hasNextPage = hasNextPage; M#;"7Qg
} `D={l29H
b,uudtlH
/** EN;s
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* @return =WM^i86
* Returns the hasPrePage. 6-J%Z%yT #
*/ 6g&Ev'
publicboolean getHasPrePage(){ u@pimRVo
return hasPrePage; g}n-H4LI
} db`L0JB
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/**
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* @param hasPrePage &ws^Dm]R
* The hasPrePage to set. fv/Nf"
*/ qvG@kuz8g5
publicvoid setHasPrePage(boolean hasPrePage){ 4Be'w`Q {
this.hasPrePage = hasPrePage; `R6dnbH
} Yh2[
nF_
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/** v,^W& W.
* @return Returns the totalPage. Z|$M 9E
* x
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*/ y$[:Kh,
publicint getTotalPage(){ ;9$71E
return totalPage; @jY=b<
} h'ik19
v8f1o$R
/** _=-B%m
* @param totalPage WJj5dqatV
* The totalPage to set. R,dbq4xkl
*/ 9wbj}tN\z
publicvoid setTotalPage(int totalPage){ TQ5*z,CkS
this.totalPage = totalPage; ,8G6q_ud
} T7~H|%
@L?KcGD
} 7BkY0_KK
RG_.0'5=hc
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上面的这个Page类对象只是一个完整的Page描述,接下来我写了一 AW8*bq1
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个PageUtil,负责对Page对象进行构造: LY;FjbyU
java代码: v6P2v
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/*Created on 2005-4-14*/ `3:Q.A_?
package org.flyware.util.page; a'Yi^;2+\
Q@KCODi
import org.apache.commons.logging.Log; we8aqEomr
import org.apache.commons.logging.LogFactory; ?kdan
<.".,Na(J0
/** i936+[
* @author Joa V:h7}T95
* O',Vce$
*/ LyH1tF
publicclass PageUtil { !|Wf
mU
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privatestaticfinal Log logger = LogFactory.getLog }`.d4mm
&EmG\vfE
(PageUtil.class); {B-*w%}HU
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/** )$ M2+_c
* Use the origin page to create a new page LhRd0
* @param page &-Ylj
* @param totalRecords Z C<+BKS
* @return G>Hg0u0!,
*/ $b(CN+#
publicstatic Page createPage(Page page, int rCUGaf~
k(he<-GF\
totalRecords){ 3$ wK*xK
return createPage(page.getEveryPage(), LXqPNVp#
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page.getCurrentPage(), totalRecords); ?4^ 0xGyE
} V503
Y (pUd3y
/** T+e*' <!O
* the basic page utils not including exception .cm2L,1h
"VDMO^
handler m?kyAW'|
* @param everyPage Dxy^r*B
* @param currentPage t)1`^W}
* @param totalRecords 1yVhO2`7]
* @return page w2db=9
*/ j#0JD!Vr
publicstatic Page createPage(int everyPage, int F1A40h7R$Y
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currentPage, int totalRecords){ $<AaeyR!N
everyPage = getEveryPage(everyPage); Q':hmulT!
currentPage = getCurrentPage(currentPage); =*1NVi $n
int beginIndex = getBeginIndex(everyPage, e3ce?gk
Lw2VdFi>E&
currentPage); rr,w/[
int totalPage = getTotalPage(everyPage, \<ysJgqUG
^e=G} N^
totalRecords); .cbC2t95
boolean hasNextPage = hasNextPage(currentPage, YS_3Cq
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totalPage); /'VbV8%
boolean hasPrePage = hasPrePage(currentPage); 0( *L)s,5
f7y.##W G
returnnew Page(hasPrePage, hasNextPage, v2_` iwE
everyPage, totalPage, AJm$(3?/D
currentPage, tv26eK
38
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beginIndex); L$BV`JWPw
} "Kdn`zN{
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privatestaticint getEveryPage(int everyPage){ Qe{w)e0}`
return everyPage == 0 ? 10 : everyPage; 8CZ%-}-%$
} k/D{&(F ~
5'c#pm\Q
privatestaticint getCurrentPage(int currentPage){ !|up"T I
return currentPage == 0 ? 1 : currentPage; 0EF~Ouef
} :eSsqt9]9
&7oL2Wf
privatestaticint getBeginIndex(int everyPage, int 7[w<v(Rc
vFB^h1k~.M
currentPage){ ZP5 !O[Ut
return(currentPage - 1) * everyPage; IzJq:G.
} B0%=! &
9h?'zyX
B
privatestaticint getTotalPage(int everyPage, int [iEz?1.,
S>r",S
totalRecords){ >=|p30\b
int totalPage = 0; ;0Pv49q
nQoQNB
if(totalRecords % everyPage == 0) J|].h
totalPage = totalRecords / everyPage; ?*%_:fB
else |/vJ+aKq
totalPage = totalRecords / everyPage + 1 ; }Uwji
DL?nvH
return totalPage; P6R_W
} RFyMRE!?
y;uR@{
privatestaticboolean hasPrePage(int currentPage){ 31@Lr[!
return currentPage == 1 ? false : true; c~?Zmdn:
} r`.N?
[IQ|c?DxpL
privatestaticboolean hasNextPage(int currentPage, msM1K1er
|PlNVd2
int totalPage){ Hddc-7s
return currentPage == totalPage || totalPage == kQ}n~Hn
94?WL
0 ? false : true; UhpJG O
} s0^(yEcq
\?d3Pn5`
4a"Fu<q
} u}gavG l
P=5+I+
ANy*'/f
GD{L$#i!
c&!mKMrk
上面的这两个对象与具体的业务逻辑无关,可以独立和抽象。 acR|X@\3
*Bq}.Yn
面对一个具体的业务逻辑:分页查询出User,每页10个结果。具体 iBd6&?E?<
8&)v%TX
做法如下: 1(Ta*"(0Ip
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 :t{~Mi=T
]MV8rC[\
的信息,和一个结果集List: <aJQV)]\
java代码: wDZ<UP=X
12KC4,C&1i
=d<RgwscJ
/*Created on 2005-6-13*/ q.VYPkEib
package com.adt.bo; (Z
SaAn),
"|L"C+tE
import java.util.List; DS<1"4 b|
K"H\gmV_g
import org.flyware.util.page.Page; );\c{QF
AQlB_@ b
/** &(rWl`eTY`
* @author Joa FT@uZWgQ=
*/ M
9t7y
publicclass Result { b.&WW
rtRbr_
private Page page; S3E,0%yo+)
xi=ApwNj
private List content; pn
gto
TZAd{EZa
/** G
@..?>
* The default constructor t?W}=%M[
*/ X#lNS+&='
public Result(){ P5h|* ?=
super(); (Q^sK\
} 0N.h: 21(4
K^shT h8k
/** 4hL%J=0:
* The constructor using fields bf"'xn9
* i#]e&Bru5
* @param page mm-s?+&M;
* @param content ZgP%sF
*/ G^~[|a4`
public Result(Page page, List content){ Xv8-<Ks
this.page = page; L>1hiD&
this.content = content; Y$ys4X
} *?rWS"B
qd*}d)!
/** &riGzU]
* @return Returns the content. IOcQI:4.`
*/ 8Xotly
publicList getContent(){ QF#w$%7
return content; 3@>F-N
} BBB@M
vk&
gR
/** {LO Pm1K8Y
* @return Returns the page. r9i?H
*/ %lF*g
public Page getPage(){ H5=kDkb
return page; 5i!Q55Yv=,
} "is(
)/H;5 cn
/** >='/%Ad
* @param content $YL9 vJV
* The content to set. g* q#VmE
*/ P[nc8z[
public void setContent(List content){ GXtMX ha,
this.content = content; jFj11w1FrA
} OSgJj MQ
)'_[R@ThB
/** b(H{i}{]
* @param page /4:bx#;A
* The page to set. 1i76u!{U
*/ _ E;T"SC
publicvoid setPage(Page page){ Zv u6/#
this.page = page; Z/#_Swv
} w,LtQhQ
} m1"m KM
8i#
Rh!UbEPjC
06&J!,p
:
:C~Ar]
2. 编写业务逻辑接口,并实现它(UserManager, Ott6y
5)k8(kH
UserManagerImpl) 2Je$SE8
java代码: pP. _%5
d7OygDb <
MMM
tB6
/*Created on 2005-7-15*/ 7L{1S
v
package com.adt.service; `ONjEl
m>@hh#kBg
import net.sf.hibernate.HibernateException; rhJ&* 0M
M";qo6
import org.flyware.util.page.Page; )pB#7aEw
M tN>5k c
import com.adt.bo.Result; CVj^{||eF
$~/2!T_
/** ;O"?6d0
* @author Joa TR"C<&y$j
*/ 3[YG
BM(
publicinterface UserManager { v, $r.g;
O\5%IfB'"
public Result listUser(Page page)throws Ot=jwvw
#@XBHJD\#
HibernateException; dGIdSQ~ _
"s2_X+4oY
} OxlA)$.hpu
'%N?r,x
C
b+rxin".
,T/Gv;wa2
jk AjYR .
java代码: zTz}H*U
`c`VIq?
Ma YU%h0
/*Created on 2005-7-15*/ Kl1v^3\{
package com.adt.service.impl; 7+O)AU{
) `u17
{
import java.util.List; =~#mF<z5
j{@O%fv=
import net.sf.hibernate.HibernateException; 4ot<Uw5
%()d$.F
import org.flyware.util.page.Page; ?|nl93m
import org.flyware.util.page.PageUtil; 7#V7D6j1
@=-(H<0
import com.adt.bo.Result; P"YdB|I
import com.adt.dao.UserDAO; th?+TNb^
import com.adt.exception.ObjectNotFoundException; {15j'Qwm
import com.adt.service.UserManager; E
C?}iP
BZq#OAp
/** '\:4Ijp<"
* @author Joa twT/uBQ4a
*/ -'rdN i
publicclass UserManagerImpl implements UserManager { X+hHE kJ
L\:|95Yq
private UserDAO userDAO; VUb>{&F[
q6zVu(
/** W5*ldXXk
* @param userDAO The userDAO to set. w^yb`\$
*/ b?H"/Mu.
publicvoid setUserDAO(UserDAO userDAO){ |;ztK[(
this.userDAO = userDAO; c4JV~VS+
} j-<]OOD
j3j?2#vR
/* (non-Javadoc) ]l,BUf-O
* @see com.adt.service.UserManager#listUser du65=w4E!
?OD$`{1
(org.flyware.util.page.Page) ]#tB[G
*/ !3Q0Ahf
public Result listUser(Page page)throws ~#_~DqbMZ5
:@A&HkF
HibernateException, ObjectNotFoundException { Y
},E3<
int totalRecords = userDAO.getUserCount(); ~Y 6'sM|
if(totalRecords == 0) O<u=Vz3c~0
throw new ObjectNotFoundException S{c/3k~
*a9cBl'_
("userNotExist"); 'Wlbh:=$
page = PageUtil.createPage(page, totalRecords); bJd|mm/v
List users = userDAO.getUserByPage(page); =i/Df?
returnnew Result(page, users); {)YbksrJ{
} @rl5k(
J_Lmy7~xbD
} 7!O"k#
Z,&