Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 f\sQO&
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 !u[eaLxV
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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 1e{IC=
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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 Gsq00j
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分页支持类: q(.sq12<<W
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java代码: |Sy<@oq
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package com.javaeye.common.util; .yqM7U_
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import java.util.List; -~v2BN/
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publicclass PaginationSupport { bU2Z[sn.
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publicfinalstaticint PAGESIZE = 30; 5A3xVN=
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privateint pageSize = PAGESIZE; RL@VSHXc
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privateList items; [ 0KlC1=
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privateint totalCount; {E9+WFz5
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privateint[] indexes = newint[0]; Vk
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privateint startIndex = 0; Mb|a+,:>3
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public PaginationSupport(List items, int K}buH\yco
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totalCount){ yW1)vD7
setPageSize(PAGESIZE); 7XTkX"zKj
setTotalCount(totalCount); 8hOk{xs8
setItems(items); t(NI-UXBp
setStartIndex(0); g(qJN<RC/
} jHE}qE~>5
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public PaginationSupport(List items, int =S+wCN
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totalCount, int startIndex){ IEsEdw]aZE
setPageSize(PAGESIZE); M/>7pZW
setTotalCount(totalCount); t^R][Ay&
setItems(items); bnq;)>&
setStartIndex(startIndex); ' g=
} ODNM+#}`
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public PaginationSupport(List items, int bpJ(XN}E
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totalCount, int pageSize, int startIndex){
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setPageSize(pageSize); 0WZ_7C?
setTotalCount(totalCount); -Ta9 pxZk
setItems(items); 8dZSi
setStartIndex(startIndex); LsqA**=
} iNtaDX|%/
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publicList getItems(){ r@h5w_9
return items; 1PVtxL?1P
} xW)2<m6C&
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publicvoid setItems(List items){ .h@rLorm>
this.items = items; "7'J&^|
} R_W+Ylob
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publicint getPageSize(){ GK)?YM
return pageSize; BP'36?=Zo
} -3t7*
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publicvoid setPageSize(int pageSize){ 42_`+Vt]d7
this.pageSize = pageSize; [R(`W#W
} Y!~49<;
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publicint getTotalCount(){ 0=@?ob7
return totalCount; bv]`!g:
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} LSa,1{
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publicvoid setTotalCount(int totalCount){ X@+{5%
if(totalCount > 0){ n7B7 m,@1
this.totalCount = totalCount; $2oTkOA
int count = totalCount / "bFTk/
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pageSize; we~[ ]
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if(totalCount % pageSize > 0) :q$.,EZ4#n
count++; V)Z}En["1
indexes = newint[count]; >Wm`v.-
for(int i = 0; i < count; i++){ q8X feoUV
indexes = pageSize * ]fx"4qKM
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} f=(?JT
}else{ q@QksAq
this.totalCount = 0; Y_;#UU689
} tvkb~
} B6u/mo<
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publicint[] getIndexes(){ 1->dMm}G[
return indexes; jqWu
} \f]k CB
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publicvoid setIndexes(int[] indexes){ C]O(T2l{l
this.indexes = indexes; RkH W
} 3c#BKHNC
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publicint getStartIndex(){ ypbe!Y<i]
return startIndex; m!|kW{B#A
} nW PF6V>
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publicvoid setStartIndex(int startIndex){ j~2{lCT
if(totalCount <= 0) 5gb|w\N>
this.startIndex = 0; v~f HYa>
elseif(startIndex >= totalCount) A;;fACF8e
this.startIndex = indexes ciFmaM.
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[indexes.length - 1]; nF54tR[
elseif(startIndex < 0) 54gBJEhg
this.startIndex = 0; 1Ce@*XBU
else{ yQ_B)b
this.startIndex = indexes r54&XE]O
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[startIndex / pageSize]; Buf/@B7+\
} RY]#<9>M
} `>7;!
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publicint getNextIndex(){ 14Xqn8uOW
int nextIndex = getStartIndex() + dT`D:)*:
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pageSize; |jQ:~2U|
if(nextIndex >= totalCount) =}lh_
return getStartIndex(); 3AHlSX
else G! ]k#.^A,
return nextIndex; K#%&0D!
} sd ,J3
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publicint getPreviousIndex(){ `>gd&u
int previousIndex = getStartIndex() - K$&s=Hm
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pageSize; o9|nJ;
if(previousIndex < 0) X^T:8npxt
return0; (X $=Q6
else G 3+.H
return previousIndex; "9m2/D`=
} sNj)ZWgd>
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} @E;=*9ek{u
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抽象业务类 *EOdEFsR/
java代码: ?^H
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/** "oTHq]Ku
* Created on 2005-7-12 WB?jRYp
*/ OP~HdocB
package com.javaeye.common.business; )T/0S$@
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import java.io.Serializable; f1`gdQ)H
import java.util.List; !Z`j2
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import org.hibernate.Criteria; aDq5C-MzG
import org.hibernate.HibernateException; oo,uO;0G
import org.hibernate.Session; {E
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import org.hibernate.criterion.DetachedCriteria; 7R`M,u~f2^
import org.hibernate.criterion.Projections; ql<i] Y
import cWEE%
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org.springframework.orm.hibernate3.HibernateCallback; Te.Y#lCT$
import UM!ENI|
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org.springframework.orm.hibernate3.support.HibernateDaoS CUO+9X-<8
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upport; K-e9>fmB#
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import com.javaeye.common.util.PaginationSupport; ?p9VO.^5
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public abstract class AbstractManager extends VO,!x~S!
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HibernateDaoSupport { L;
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privateboolean cacheQueries = false; ;o^eC!:/%
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privateString queryCacheRegion; @Py/K /
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publicvoid setCacheQueries(boolean N96jJk
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cacheQueries){ g'pK
this.cacheQueries = cacheQueries; ?Eg(Gu.J
} *meZ8DV2DH
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publicvoid setQueryCacheRegion(String
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queryCacheRegion){ dA-2%uJ
this.queryCacheRegion = }XZ'v_Ti
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queryCacheRegion; @|Fg,N<Y]
} )!Jc3%(B
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publicvoid save(finalObject entity){ a#^B2
getHibernateTemplate().save(entity); sJ#4(r`
} * 1T&
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publicvoid persist(finalObject entity){ TK5K_V*7
getHibernateTemplate().save(entity); vbkI^+=,YY
} z3`-plE
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publicvoid update(finalObject entity){ ?f#y1m
getHibernateTemplate().update(entity); n?A6u\sQ
} LG-y]4a}
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publicvoid delete(finalObject entity){ ie;]/va
getHibernateTemplate().delete(entity); R#xCkl -
} ZZWD8AX
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publicObject load(finalClass entity, Dakoqke
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finalSerializable id){ flk=>h|
return getHibernateTemplate().load rE iKi
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(entity, id);
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} <!L>Exh&r
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publicObject get(finalClass entity, Zq6ebj
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finalSerializable id){ 8i+jFSZ$
return getHibernateTemplate().get C ^ k3* N
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(entity, id); u>-uRz<)t
} +\]S<T*;
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publicList findAll(finalClass entity){ )-7(Hv1
return getHibernateTemplate().find("from l=.InSuLT
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" + entity.getName()); ,HjHt\!~<
} /)HEx&SQmZ
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publicList findByNamedQuery(finalString m]b.P,~v
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namedQuery){ i_Q4bhVj
return getHibernateTemplate r'}k`A5>
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().findByNamedQuery(namedQuery); l'X?S(fiV
} [O =)FiY-
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publicList findByNamedQuery(finalString query, yyYbB ]D
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finalObject parameter){ iS^^Z ZyR
return getHibernateTemplate dYttse'
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().findByNamedQuery(query, parameter); O"w_sw
} MDXQj5s^
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publicList findByNamedQuery(finalString query, Vf* B1Zb
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finalObject[] parameters){ )fcpE,g'
return getHibernateTemplate [;\<
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().findByNamedQuery(query, parameters); UM;bVf?
} ZJ'H y5?
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publicList find(finalString query){ REe%>|
return getHibernateTemplate().find @ F"ShT0
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(query); zj0pP{y
} ?>Ci`XlLr
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publicList find(finalString query, finalObject X\:(8C;+
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parameter){ {d5ur@G1
return getHibernateTemplate().find G7#~=W
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(query, parameter); `E%d$
} eFI9S.6
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public PaginationSupport findPageByCriteria kT3;%D^
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(final DetachedCriteria detachedCriteria){ =(uy':Dbn*
return findPageByCriteria K>E!W!-PJ
J};,%q_
(detachedCriteria, PaginationSupport.PAGESIZE, 0); 8YkH
} i7E7%~S
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public PaginationSupport findPageByCriteria k{&E}:A
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(final DetachedCriteria detachedCriteria, finalint krT!AfeV
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startIndex){ v}t:}M<;
return findPageByCriteria "h|0]y^2
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(detachedCriteria, PaginationSupport.PAGESIZE, R-0Ohj
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startIndex); 'cCj@bZ9X
} [WSIC *|;
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public PaginationSupport findPageByCriteria Nv#, s_hG
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(final DetachedCriteria detachedCriteria, finalint JqIv&W