Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 P&d"V<
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 g*)K/Z0pJ$
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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 x^|V af
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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 lkyzNy9R
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分页支持类: *#%9Rp2|
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java代码: 9!9Z~/*m
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package com.javaeye.common.util; ZKQ hbNT
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import java.util.List; E ca\fkj
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publicclass PaginationSupport { H/M Au7
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publicfinalstaticint PAGESIZE = 30; !3mA0-!+
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privateint pageSize = PAGESIZE; JOjoiA
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privateList items; 0JgL2ayIVI
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privateint totalCount; M3p
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privateint[] indexes = newint[0]; i>EgG5iJ
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privateint startIndex = 0; r'CM
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public PaginationSupport(List items, int J--m[X
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totalCount){ {_(\`>
setPageSize(PAGESIZE); Oz|K8p
setTotalCount(totalCount); `cx]e
setItems(items); 7&KT0a*
setStartIndex(0); v+jsC`m
} K"<PGOF
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public PaginationSupport(List items, int )CX4kPj
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totalCount, int startIndex){ ,!V]jP)
setPageSize(PAGESIZE); yq+!czlZ
setTotalCount(totalCount); J 5h+s-'
setItems(items); [D5t{[i
setStartIndex(startIndex); }HE6aF62O
} 3E
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public PaginationSupport(List items, int =AVgIv
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totalCount, int pageSize, int startIndex){ `h}q
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setPageSize(pageSize); D>Gt]s
setTotalCount(totalCount); E;21?`x5
setItems(items); <p;k)S2J
setStartIndex(startIndex); X=8Y%
} $A3<G-4O
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publicList getItems(){ 3~e8bcb
return items; @"T"7c?Cv
} Ll MpS<2NO
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publicvoid setItems(List items){ DF6c|
this.items = items; UD~p'^.m_
} 9dMrgz&'
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publicint getPageSize(){ <o2r~E0r3
return pageSize; <8UYhGK
} [sW.CK=3
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publicvoid setPageSize(int pageSize){ iTW? W\d
this.pageSize = pageSize; = 07Gy, =i
} iR$<$P5
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publicint getTotalCount(){ CIjZG ?A
return totalCount; [OOS`N4<
} Oi"a:bCU
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publicvoid setTotalCount(int totalCount){ 0?WcoPU
if(totalCount > 0){ vd`}/~o
this.totalCount = totalCount; :V)lbn\
int count = totalCount / ?j^=u:<
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pageSize; e&eW|E
if(totalCount % pageSize > 0) Y-ux7F{=z
count++; m8623DB"
indexes = newint[count]; :a:[.
for(int i = 0; i < count; i++){ A?G IBjs
indexes = pageSize * 'gQidf
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} 61U<5:#l
}else{ ~}Z\:#U
this.totalCount = 0; Oo?,fw
} )hwV`2>l
} %hlspI(J
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publicint[] getIndexes(){ \U%#nU{
return indexes; \b}~2oX
} k
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publicvoid setIndexes(int[] indexes){ .@iFa3
this.indexes = indexes; -Xz?s
} KlK`;cr?
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publicint getStartIndex(){ doHF|<s
return startIndex; v+6@cC
} ?_\$
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publicvoid setStartIndex(int startIndex){ DjMf,wX-{
if(totalCount <= 0) %/kyT%1
this.startIndex = 0; 7iuQ9q^&
elseif(startIndex >= totalCount) DOm[*1@^
this.startIndex = indexes XwM611
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[indexes.length - 1]; "s
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elseif(startIndex < 0) *cWmS\h|
this.startIndex = 0; nW\(IkX\
else{ 33:DH}
this.startIndex = indexes P+e KZo
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[startIndex / pageSize]; ^SEdA=!
} EjEFg#q
} QzGV.Mt2
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publicint getNextIndex(){ {u7##Vrgt8
int nextIndex = getStartIndex() + ~E4"}n[3A#
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pageSize; zIQzmvf
if(nextIndex >= totalCount) HU
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return getStartIndex(); 4C~UcGMv\
else ]pTvMom$6
return nextIndex; 'p)Q68;&
} lp&!lb`
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publicint getPreviousIndex(){ .uZ7 -l
int previousIndex = getStartIndex() - f<[jwhCWV
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pageSize; t[.W$1=
if(previousIndex < 0) \hk/1/siyF
return0; O^{1RV3:,T
else n1(?|aJ#1
return previousIndex; ?s}
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} {sN"(H4$
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} 5$l9@0D.\
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抽象业务类 +Al>2 ~
java代码: ESQ!@G/n
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/** #JNy
* Created on 2005-7-12 4-4?IwS
*/ Y'm=etE
package com.javaeye.common.business; OS7RQw1
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import java.io.Serializable; 3_ 2hC!u!K
import java.util.List; <,39_#H?F3
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@*
import org.hibernate.Criteria; Z}Cqd?_')
import org.hibernate.HibernateException; n`5WXpz4;
import org.hibernate.Session; mVf.sA8
import org.hibernate.criterion.DetachedCriteria; 8Pmwzpk02
import org.hibernate.criterion.Projections; HFh /$VM
import fp !:u
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org.springframework.orm.hibernate3.HibernateCallback; a+(j?_FyI
import xEoip?O?7F
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org.springframework.orm.hibernate3.support.HibernateDaoS 0<P(M: a
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upport; mUwUs~PjA
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import com.javaeye.common.util.PaginationSupport; lSCY5[?
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public abstract class AbstractManager extends _
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HibernateDaoSupport {
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privateboolean cacheQueries = false; oI$V|D3 9
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privateString queryCacheRegion; 9eSRCLhgD
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publicvoid setCacheQueries(boolean ZrcPgcF
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cacheQueries){ GVp
this.cacheQueries = cacheQueries; twbcuaCTW
} `1,eX)S
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publicvoid setQueryCacheRegion(String |0w~P
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queryCacheRegion){ RK3.-
this.queryCacheRegion = #_p
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queryCacheRegion; fv|%Ocm
} R#fy60
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publicvoid save(finalObject entity){ 7j R7
getHibernateTemplate().save(entity); P%jkKE?B4
} Nh :JU?h
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publicvoid persist(finalObject entity){ pP
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getHibernateTemplate().save(entity); WhenwQT
} I$Eg$q
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publicvoid update(finalObject entity){ 6m\*]nOy4
getHibernateTemplate().update(entity); JOgmF_(>Z
} "?+UI
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publicvoid delete(finalObject entity){ ;$[VX/A`f
getHibernateTemplate().delete(entity); (V^QQ !:
} @|]iSD&T
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publicObject load(finalClass entity, SE-} XI\
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finalSerializable id){ +E)e1:8
return getHibernateTemplate().load y,1S&k
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(entity, id); B
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} @Z,qu2~|!
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publicObject get(finalClass entity, %!D_q~"H
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finalSerializable id){ @V7;TJk
return getHibernateTemplate().get XZ;*>(
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(entity, id); bQ
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} $kM'
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publicList findAll(finalClass entity){ e|35|I '
return getHibernateTemplate().find("from 4h(jw
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" + entity.getName()); PlF89-
} [Aa[&RX+9
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publicList findByNamedQuery(finalString '"'D.,[W2
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namedQuery){ oPp!*$V
return getHibernateTemplate k q/t]%(
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().findByNamedQuery(namedQuery); 5+J64_
} 7j4ej|Fjo
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publicList findByNamedQuery(finalString query, S a(yjF1
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finalObject parameter){ Smi%dp.
return getHibernateTemplate qr7 X-[&
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().findByNamedQuery(query, parameter); UZ[/aq
} A%.J%[MVz
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publicList findByNamedQuery(finalString query, \ 9[NH/.Z{
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finalObject[] parameters){ G5y]^P
return getHibernateTemplate }wa}hIqx
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