Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 x0
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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 zfvl<"Rv
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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 <oO^w&G
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分页支持类: SB]|y-su
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java代码: rs<UWk<q
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package com.javaeye.common.util; }yXa1#3
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import java.util.List; 8Kv=Zp,?`
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publicclass PaginationSupport { W4X=.vr
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publicfinalstaticint PAGESIZE = 30; >/-<,,<\C
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privateint pageSize = PAGESIZE; ^cX);koO
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privateList items; e6,/i
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privateint totalCount; )6HcPso6
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privateint[] indexes = newint[0]; N^:)U"9*e
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privateint startIndex = 0; cO_En`F
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public PaginationSupport(List items, int qm8[ ^jO&
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totalCount){ t13wQt
setPageSize(PAGESIZE); ax,%07hJ
setTotalCount(totalCount); ^ WidA-
setItems(items); 0~)cAKus
setStartIndex(0); D1#fy=u69|
} 1VH7z
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public PaginationSupport(List items, int O~trv,?)
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totalCount, int startIndex){ ?%#3p[
setPageSize(PAGESIZE); [gx6e 44
setTotalCount(totalCount); wxN'Lv=R
setItems(items); t4~Bn<=
setStartIndex(startIndex); P^T]U bv"
} &n91f
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public PaginationSupport(List items, int Z!v)zH\
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totalCount, int pageSize, int startIndex){ Xw_AZ-|1D
setPageSize(pageSize); k0Rd:DxO
setTotalCount(totalCount); EcU}ErN
setItems(items); yC(xi"!
setStartIndex(startIndex); Y{6y.F*Q#
} QS\H[?M$
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publicList getItems(){ MB%yC]w8
return items; {p=`"H>
} 'M VE5
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publicvoid setItems(List items){ (V!:6
this.items = items; [x{'NwP?
} ]>B>.s
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publicint getPageSize(){ M4~^tML>Ey
return pageSize; D!^&*Ia?2
} :Z3Tyj}4
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publicvoid setPageSize(int pageSize){ lpvZ[^G
this.pageSize = pageSize; o]u,<bM$
} PuYAoKG
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publicint getTotalCount(){ WzDL(~m+Z
return totalCount; #R-l2OO^]
} A]c'`Nf
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publicvoid setTotalCount(int totalCount){ (kCzz-_\
if(totalCount > 0){ w&8N6gA14
this.totalCount = totalCount; 5%Hw,h
int count = totalCount / qT5q3 A(8
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pageSize; 62)Qr
if(totalCount % pageSize > 0) J2W#vFe\
count++; FN0)DN2d}
indexes = newint[count]; waT'|9{
for(int i = 0; i < count; i++){ Y=6569U2
indexes = pageSize * Ymt.>8L
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} (#KSwWo{ed
}else{ (JenTL`%u
this.totalCount = 0; AWo\u!j
} UNY
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} !Pd@0n4
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publicint[] getIndexes(){ 8~*
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return indexes; r}T(?KGx
} icS%])3LF
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publicvoid setIndexes(int[] indexes){ r9sq3z|%
this.indexes = indexes; N)CM^$(T|
} 2 8>
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publicint getStartIndex(){ /;E{(%U)t
return startIndex; %JoHc?
} O2N7qV3U,
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publicvoid setStartIndex(int startIndex){ \D67J239E
if(totalCount <= 0) l5P!9P
this.startIndex = 0; 'rl?'~={p
elseif(startIndex >= totalCount) e\)r"!?H`
this.startIndex = indexes &;3iHY;
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[indexes.length - 1]; Y.yiUf/Q
elseif(startIndex < 0) 94.|l
this.startIndex = 0; C}jFR] x)
else{ l/xpAx
this.startIndex = indexes ]8 vsr$E#
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[startIndex / pageSize]; T"IDCT'z
} !1m7^3l7j
} h8XoF1wuw
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publicint getNextIndex(){ kLE("I:7
int nextIndex = getStartIndex() + 9u?[{h.`B
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pageSize; @V}!elV
if(nextIndex >= totalCount) 3R>"X c
return getStartIndex(); >bRoQ8
else `_"loPu
return nextIndex; WQiIS0BJ *
} ^tFlA)
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publicint getPreviousIndex(){ {e!3|&AX
int previousIndex = getStartIndex() - ~v>3lEGn*
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pageSize; .~O-
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if(previousIndex < 0) @6"+x
return0; /$NR@56
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else HkPdqNC&
return previousIndex; n:"0mWnL$y
} EQ [K
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} q x5jaa3
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抽象业务类 \ gO!6
java代码: O>y*u 8
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/** V7<w9MM
* Created on 2005-7-12 fnJx$PD~
*/ .k -!/ ^
package com.javaeye.common.business; GLp~SeF#
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import java.io.Serializable; .QW@rV:T
import java.util.List; }D]y-BbA.
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import org.hibernate.Criteria; PR3i}y>
import org.hibernate.HibernateException; A'aY H`j
import org.hibernate.Session; O03N$Jq
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import org.hibernate.criterion.DetachedCriteria; Nt,:`o |
import org.hibernate.criterion.Projections; IOddu2.(
import uCHM
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org.springframework.orm.hibernate3.HibernateCallback; LGh#
import qTz5P
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org.springframework.orm.hibernate3.support.HibernateDaoS 1\aV4T
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upport; /$d#9Uv
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import com.javaeye.common.util.PaginationSupport; 14`S9SL{V
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public abstract class AbstractManager extends /H*[~b
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HibernateDaoSupport { G%fXHAs .+
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privateboolean cacheQueries = false; .U#oN_D
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privateString queryCacheRegion; ;w;+<Rd
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publicvoid setCacheQueries(boolean V]Kk=
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cacheQueries){ 0
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this.cacheQueries = cacheQueries; D}rnpwp{
} NC3XJ
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publicvoid setQueryCacheRegion(String =j%ORD[
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queryCacheRegion){ )}J}d)
this.queryCacheRegion = TB_OFbI2
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queryCacheRegion; &`}d;r|yn1
} yujv^2/
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publicvoid save(finalObject entity){ S;"$02]
getHibernateTemplate().save(entity); J;k8 a2$_
} `j4OKZ
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publicvoid persist(finalObject entity){ =%S*h)}@
getHibernateTemplate().save(entity); QsPZ dC
} IN@ =UAc&
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publicvoid update(finalObject entity){ ,Vy_%f
getHibernateTemplate().update(entity); $\aJ.N6rb
} To;r#h
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publicvoid delete(finalObject entity){ ~X-v@a
getHibernateTemplate().delete(entity); |[@v+koq
} 0?''v>%
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publicObject load(finalClass entity, geNvp0
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finalSerializable id){ v<ati c
return getHibernateTemplate().load ,_bG'Hmt
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(entity, id); #<5i/5&
} i'`>YX
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publicObject get(finalClass entity, 'Uo|@tK
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finalSerializable id){ s,j=Kym%
return getHibernateTemplate().get dW%;Z
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(entity, id); o;v_vCLO
} ~Efi|A/
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publicList findAll(finalClass entity){ EdCcnl?R6
return getHibernateTemplate().find("from t?FPmbjv
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" + entity.getName()); RWZjD#5%Z
} k^%F4d3z@C
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publicList findByNamedQuery(finalString 'kekJ.wJ;
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namedQuery){ ~V/?/J$
return getHibernateTemplate h@{CMe
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().findByNamedQuery(namedQuery); m, SWG[~
} (wp?tMN5#
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publicList findByNamedQuery(finalString query, Cp]q>lM"
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finalObject parameter){ fRt&-z('
return getHibernateTemplate qbo
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().findByNamedQuery(query, parameter); fn.}LeeS>
} t7/a5x
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publicList findByNamedQuery(finalString query, b(_PV#@$
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finalObject[] parameters){ XtIY8wsP
return getHibernateTemplate (oB9$Zz!t
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().findByNamedQuery(query, parameters); <a=k"'0
} bAL!l\&2
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publicList find(finalString query){ B3yp2tncj
return getHibernateTemplate().find +w+qTZyky
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(query); &uxwz@RC0
} Mh5 =]O+
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publicList find(finalString query, finalObject z.*=3
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parameter){ -42jeJS
return getHibernateTemplate().find ]|/\Sd
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(query, parameter); vU,
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} } mEsb?
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public PaginationSupport findPageByCriteria 2_;3B4GDF
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(final DetachedCriteria detachedCriteria){ /qO?)p3gk
return findPageByCriteria M-NY&