Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 &B(z**+9
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ^>l <)$s
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据这一功能,我设计了通用的抽象Bean基类和分页类支持,代码来 <K^a2 D
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自于Quake Wang的javaeye-core包的相应类,然后又做了很多修改 >(a35 b$
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分页支持类: +I3Vfv
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java代码: >IaGa!4
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package com.javaeye.common.util; !2!Zhw2u
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import java.util.List; \"ahs7ABT
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publicclass PaginationSupport { <h:xZtz
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publicfinalstaticint PAGESIZE = 30; ^.LB(GZ,
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privateint pageSize = PAGESIZE; {`SMxDevc}
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privateList items; iUcX\
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privateint totalCount; D?_K5a&v,
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privateint[] indexes = newint[0]; l0,VN,$Yl
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privateint startIndex = 0; UnK7&Uo
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public PaginationSupport(List items, int ;iiCay37F
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totalCount){ ir}z^+
setPageSize(PAGESIZE); _ VuWo
setTotalCount(totalCount); 0V3dc+t)O
setItems(items); W Csf_1
setStartIndex(0); GrG'G(NQ
} gV.? Myy
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public PaginationSupport(List items, int rB".!b
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totalCount, int startIndex){ i+O7," (@
setPageSize(PAGESIZE); 'l5
setTotalCount(totalCount); &6s&nx
setItems(items);
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setStartIndex(startIndex); ![B|Nxq}@
} rNV3-#kU
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public PaginationSupport(List items, int <?B3^z$
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totalCount, int pageSize, int startIndex){ #l}Fk)dj
setPageSize(pageSize); ljK?2z>
setTotalCount(totalCount); `]W9Fj<1j
setItems(items); :-jbIpj'
setStartIndex(startIndex); H14Q-2U1xa
} OS#aYER~/
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publicList getItems(){ B$rhsK%
return items; x"q]~u<rB
} H-pf8
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publicvoid setItems(List items){ H[.)&7M\
this.items = items;
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} b, a7XANsh
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publicint getPageSize(){ .Qrpz^wdt
return pageSize; H]tD~KM<
} Rr
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publicvoid setPageSize(int pageSize){ r =x"E$
this.pageSize = pageSize; BO*)cLQ
} Ee}|!n>
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publicint getTotalCount(){ #3*cA!V.<
return totalCount; Ct-eD-X{
} \Ki3ls
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publicvoid setTotalCount(int totalCount){ AwG0E`SU
if(totalCount > 0){ )dfhy
this.totalCount = totalCount; t[2b~peNI
int count = totalCount / lU!_V%n
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pageSize; WS[Z[O
if(totalCount % pageSize > 0) RI8*'~ix]
count++; VLm\P S
indexes = newint[count]; yJ!26
for(int i = 0; i < count; i++){ &UH0Tw4
indexes = pageSize * /(8"]f/
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} K@=u F1?
}else{ pv0|6X?J"
this.totalCount = 0; }+m4(lpl
} Ydrh+
} 2 %fcDEG/
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publicint[] getIndexes(){ m^XO77"
return indexes; NTq_"`JjZ
} s~Ivq+ipr;
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publicvoid setIndexes(int[] indexes){ S6M7^_B4F
this.indexes = indexes; ^&&Wv'7XQ
} yFk|8d-|
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publicint getStartIndex(){ R5e[cC8o.
return startIndex; l/(~Kf9eQG
} ;N.dzH2yA
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publicvoid setStartIndex(int startIndex){ &*/= `=:C8
if(totalCount <= 0) =b*GV6b
this.startIndex = 0; h'S0XU
;
elseif(startIndex >= totalCount) TP#Ncqh
this.startIndex = indexes Io<T'K
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[indexes.length - 1]; 5rLx
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elseif(startIndex < 0) k(RKAFjY
this.startIndex = 0; $s=` {v v
else{ h{7>>
this.startIndex = indexes `\(co;:
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[startIndex / pageSize]; KKk~vwW
} 9~=zD9,|iA
} %0y-f
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publicint getNextIndex(){ T"htWo{v>
int nextIndex = getStartIndex() + JZ`u?ZaJ/s
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pageSize; 0#Gm# =F
if(nextIndex >= totalCount) "gNi}dB<]
return getStartIndex(); 1d+Kn Jy
else 9LPXhxNwB
return nextIndex; >y8>OJ?A7-
} &iu]M=Yb
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publicint getPreviousIndex(){ }=f\WWJf0
int previousIndex = getStartIndex() - L44|/~
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pageSize; 7l-MVn_8
if(previousIndex < 0) =U~53Tg
return0; hwUb(pZ
else ,k_ b-/
return previousIndex; <=_!8A
} BYdGK@ouk
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} ~Qif-|[V
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抽象业务类 4P?`<K'
java代码: M^\`~{*T
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/** -}4CY\d6'
* Created on 2005-7-12 H[:lQ\
*/ ,#BD/dF
package com.javaeye.common.business; sKW~+]
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import java.io.Serializable; tkm@&e=e%
import java.util.List; E3p$^['vx
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import org.hibernate.Criteria; lE%KzX?&
import org.hibernate.HibernateException; H/`@6, j
import org.hibernate.Session; tc.|mIvw
import org.hibernate.criterion.DetachedCriteria; o_=4Ex
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import org.hibernate.criterion.Projections; @Oz3A<M
import P=}dR&gk'
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org.springframework.orm.hibernate3.HibernateCallback; =?4[:#Rh
import ]O:u9If
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org.springframework.orm.hibernate3.support.HibernateDaoS lAG@nh^
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upport; @$kzes\
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import com.javaeye.common.util.PaginationSupport; ~Fo2M wE2~
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public abstract class AbstractManager extends :I/9j=@1
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HibernateDaoSupport { z|],s]F>G
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privateboolean cacheQueries = false; lmUCrs37
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privateString queryCacheRegion; f'"PQr^9
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publicvoid setCacheQueries(boolean ~C>;0a;<:
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cacheQueries){ lxZ9y
this.cacheQueries = cacheQueries; {4SaSv^/
} z^*g2J,
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publicvoid setQueryCacheRegion(String P()n=&XO6
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queryCacheRegion){ % &H^UxC
this.queryCacheRegion = )mAD <y+
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queryCacheRegion; dg*xo9Xi`
} EJz!#f~
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publicvoid save(finalObject entity){ jR:\D_:
getHibernateTemplate().save(entity); R$IsP,Uw
} e\aW~zs 2
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publicvoid persist(finalObject entity){ rFt+Y})
getHibernateTemplate().save(entity); gkTwGI+w
} S{F\_'%
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publicvoid update(finalObject entity){ ^; U}HAY
getHibernateTemplate().update(entity); \Js*>xA
} Nk%$;Si
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publicvoid delete(finalObject entity){
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getHibernateTemplate().delete(entity); ~#so4<A`3
} #~m^RoE
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publicObject load(finalClass entity, iu{;|E
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finalSerializable id){ i&m6;>?`
return getHibernateTemplate().load !.iFU+?V
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(entity, id); 0S+$l
} }9B},
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publicObject get(finalClass entity, ettBque
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finalSerializable id){ XgUSJ*
return getHibernateTemplate().get {Z!t:'x8
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(entity, id); <WmjjD
} .MDSP/s
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publicList findAll(finalClass entity){ Zs0;92WL
return getHibernateTemplate().find("from pwSkw J]
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" + entity.getName()); Yc)Dx3
} &{wRB l #
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publicList findByNamedQuery(finalString S+eu3nMq
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namedQuery){ I:al[V2g
return getHibernateTemplate 6r%i=z
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().findByNamedQuery(namedQuery); eLHhfu;k
} x}`)'a[
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publicList findByNamedQuery(finalString query, .A/xH
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finalObject parameter){ .DnG}884
return getHibernateTemplate cFjD*r-
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().findByNamedQuery(query, parameter); (<H@W/0$
} tK+JmbB\
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publicList findByNamedQuery(finalString query, DtS7)/<T
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finalObject[] parameters){ 3T 0'zJ2f
return getHibernateTemplate =kOo(
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().findByNamedQuery(query, parameters); h<CRW-
} !iX/Ni:
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publicList find(finalString query){ s nNd7v.U6
return getHibernateTemplate().find 3:sx%Ci/2
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(query); a>Aq/=
} weGsjy(b]N
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publicList find(finalString query, finalObject >G [:Q
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parameter){
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return getHibernateTemplate().find L&|^y8
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(query, parameter); @L607[!?
} Sq2 8=1%
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public PaginationSupport findPageByCriteria ?d3<GhzlR3
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