Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 f{+n$Cos
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 /k^!hI"4c
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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 u%b.#!
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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 gEISnMH
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。
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分页支持类: 'Hv=\p4$1
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java代码: y^[?F>wB
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package com.javaeye.common.util; &<oJw TC
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import java.util.List; |!hN!j*)
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publicclass PaginationSupport { %R m`+
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publicfinalstaticint PAGESIZE = 30; N.F//n
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privateint pageSize = PAGESIZE; }!*CyO*
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privateList items; d<_#Q7]I4
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privateint totalCount; 4RL0@)0F
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privateint[] indexes = newint[0]; 0'zX6%
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privateint startIndex = 0; KvY1bMU!
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public PaginationSupport(List items, int n7VQi+i'
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totalCount){ 8Os: SC@Q
setPageSize(PAGESIZE); wn/Y5
setTotalCount(totalCount); gn)>(MG
setItems(items); jeWI<ms
setStartIndex(0); 5fY7[{2
} Ng|c13A=
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public PaginationSupport(List items, int 4 zhg#
<*[D30<
totalCount, int startIndex){ +<rWYF(ii/
setPageSize(PAGESIZE); Gc,6;!+(
setTotalCount(totalCount); -=4{X
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setItems(items); 1+v!)Y>Z&
setStartIndex(startIndex); H$rNT/C
} N}CeQ'l[R
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public PaginationSupport(List items, int Jk}Dj0o
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totalCount, int pageSize, int startIndex){ @&9 ,0x
setPageSize(pageSize); [m0G;%KR/
setTotalCount(totalCount); ]=]fIKd
setItems(items); FwwOp"[~t
setStartIndex(startIndex); RN"Ur'+
} (-%1z_@Y
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publicList getItems(){ p(fL'
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return items; Uu0
}
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publicvoid setItems(List items){ YckLz01jh
this.items = items; )R6-]TkA_
} $0&<Jx
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publicint getPageSize(){ a_(T9pr
return pageSize; NudY9~
} yn|U<Hxl~H
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publicvoid setPageSize(int pageSize){ Ctx{rf_~
this.pageSize = pageSize; ukc<yc].+?
} q!y!=hI
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publicint getTotalCount(){ Kr%w"$<
return totalCount; J936o3F_
} tJII-\3"
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publicvoid setTotalCount(int totalCount){ =^mBj?(V7
if(totalCount > 0){ :!L>_ f
this.totalCount = totalCount; )QW
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int count = totalCount / ZmAo9>'Kg
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pageSize; [!Zyp`:
if(totalCount % pageSize > 0) !`0
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count++; {xRO.699
indexes = newint[count]; Q?V'3ZZF!
for(int i = 0; i < count; i++){ W.nr&yiQ
indexes = pageSize * l#& \,T
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i; Kb~i9x&
} #k|f%!-Vo
}else{ -0>s`ruor
this.totalCount = 0; FZ5
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} ^\g?uH6k U
} 0aa&13!5
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publicint[] getIndexes(){ Vc!'=&*
return indexes; wxE'h~+
} q$kx/6=k
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publicvoid setIndexes(int[] indexes){ 85vyt/.,k
this.indexes = indexes; {sF;R.P&r
} ODKHI\U
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publicint getStartIndex(){ !@[@&.
return startIndex; Q.g44>
} *T2kxN,Ik
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publicvoid setStartIndex(int startIndex){ t/J|<Ooj?
if(totalCount <= 0) O{Y*a )"
this.startIndex = 0; o#hFK'&~
elseif(startIndex >= totalCount)
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this.startIndex = indexes B8>3GZi
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[indexes.length - 1]; 7_`_iymR
elseif(startIndex < 0) >6gduD!6I
this.startIndex = 0; lyw)4;wt\
else{ ;^ff35EE8
this.startIndex = indexes s&M#]8x;x
r#(*x 2~,
[startIndex / pageSize]; i QvqifDmh
} M3s:B& /
} ,U.|+i{
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publicint getNextIndex(){ #Yx
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int nextIndex = getStartIndex() + "ZP)[ [Rd
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pageSize; |?\2F
if(nextIndex >= totalCount) XGAR8=tic
return getStartIndex(); uQ3W =
else VEx
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return nextIndex; 8Ud.}<
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} Q1RUmIe_&
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publicint getPreviousIndex(){ ;!B>b)%
int previousIndex = getStartIndex() - 2#@-t{\3-p
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pageSize; /! M%9gu
if(previousIndex < 0) uOJso2Mx
return0; i2?TMM!Fe
else D
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return previousIndex; 9s#*~[E*
} 3w8v.J8q
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} w_*$wVl
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抽象业务类 6 -IThC
java代码: H={5>;8G
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/** LRPdA "Z
* Created on 2005-7-12 __i))2
*/ oT- Y
package com.javaeye.common.business; J :l%
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import java.io.Serializable; K<p)-q
import java.util.List; 9^@#Ua
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import org.hibernate.Criteria; p{;FO?
import org.hibernate.HibernateException; ; g\rY
import org.hibernate.Session; {i)FDdDGD
import org.hibernate.criterion.DetachedCriteria; ^t P|8k
import org.hibernate.criterion.Projections; K QCF "
import &X)^G#
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org.springframework.orm.hibernate3.HibernateCallback; BP=<TRp.
import %D>cY!
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org.springframework.orm.hibernate3.support.HibernateDaoS v(l:N@L
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upport; gP?.io9Oi
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import com.javaeye.common.util.PaginationSupport; ?S'Wd=
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public abstract class AbstractManager extends }T"&4Rvs2R
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HibernateDaoSupport { 35Fs/Gf-n
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privateboolean cacheQueries = false; in2m/q?
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privateString queryCacheRegion; bl[2VM7P
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publicvoid setCacheQueries(boolean 90">l^HX=
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cacheQueries){ (
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this.cacheQueries = cacheQueries; >uwd3XW5
} w5q'M
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publicvoid setQueryCacheRegion(String dQI6.$?
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queryCacheRegion){ y~<_ux,
this.queryCacheRegion = B dxV [SF
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queryCacheRegion; QVe<Z A8N;
} }h=3[pe}
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publicvoid save(finalObject entity){ Nh+XlgXG
getHibernateTemplate().save(entity); ~;I'.TW
} 8xYeaK
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publicvoid persist(finalObject entity){ ]?s^{
getHibernateTemplate().save(entity); RIq\IQ_|
} g4GU28 l
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publicvoid update(finalObject entity){ D3x
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getHibernateTemplate().update(entity); rXVRX#Lh
} 2 5Ia
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publicvoid delete(finalObject entity){ }XfRKGQw
getHibernateTemplate().delete(entity); Fr1OzS^&(
} gk4DoO j#P
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publicObject load(finalClass entity, m>+e;5
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finalSerializable id){ EkEQFd 5g
return getHibernateTemplate().load >7 qZ\#
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(entity, id); @"0n8y
} A&:~dZ:%w
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publicObject get(finalClass entity, :YNXS;>)!
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finalSerializable id){ .p-T >
return getHibernateTemplate().get [W=6NAd
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(entity, id); La\|Bwx
} td|O #R
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publicList findAll(finalClass entity){ bP{uZnOM2P
return getHibernateTemplate().find("from ~4M?[E&
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" + entity.getName()); .%_=(C<E
} R^Y_i
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publicList findByNamedQuery(finalString 3|0OW
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namedQuery){ MzIn~[\
return getHibernateTemplate EN)0b,ax
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().findByNamedQuery(namedQuery); JmbWEX|
} =7-@&S=?s
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publicList findByNamedQuery(finalString query, N|asr,
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finalObject parameter){ 7DIFJJE'
return getHibernateTemplate `yrJ }f
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().findByNamedQuery(query, parameter); S3?U-R^`
} AP(%m';
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publicList findByNamedQuery(finalString query, ihopQb+k^m
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finalObject[] parameters){ K7]QgfpSZ
return getHibernateTemplate }&LLo
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().findByNamedQuery(query, parameters); ^( 1S`z$
} }N
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publicList find(finalString query){ rY]QTS">o
return getHibernateTemplate().find r$&WwH2^
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(query); ,\D*=5
} h3P ^W(=&
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publicList find(finalString query, finalObject fnn/akGKI
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parameter){ \Wf1b8FW
return getHibernateTemplate().find ![{0Yw
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(query, parameter); Io7o*::6iw
} EGK7)O'W
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public PaginationSupport findPageByCriteria Pe?b#
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(final DetachedCriteria detachedCriteria){ swG!O}29OX
return findPageByCriteria i"
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); i3o;G"IcD
} L'<.#(|
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public PaginationSupport findPageByCriteria U t.#h="
9M1 UkS$`@
(final DetachedCriteria detachedCriteria, finalint zAO|{m<A2
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startIndex){ ++Fk8R/$U[
return findPageByCriteria 6}GcMhU<r
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(detachedCriteria, PaginationSupport.PAGESIZE, ?eri6D,86w
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startIndex); yPVK>em5
} #]lK! :
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public PaginationSupport findPageByCriteria c_FnJ_+ +f
& _mp!&5XV
(final DetachedCriteria detachedCriteria, finalint JId|LHf*P
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pageSize, '+E\-X
finalint startIndex){ 4'`y5E
return(PaginationSupport) [K"&1h<>
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getHibernateTemplate().execute(new HibernateCallback(){
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publicObject doInHibernate Z,5B(X j
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(Session session)throws HibernateException { L<_zQ
Criteria criteria = U$ 22 r b
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detachedCriteria.getExecutableCriteria(session); 7q'T,'[
int totalCount = _4~q&?}V
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((Integer) criteria.setProjection(Projections.rowCount 3Tz~DdB
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*
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()).uniqueResult()).intValue(); +<w\K*
criteria.setProjection T {zz3@2?
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(null); ::8c pUc`f
List items = QW_W5|_
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criteria.setFirstResult(startIndex).setMaxResults |oV_7%mlu
9O\N
K:2
(pageSize).list(); )9z3T>QW
PaginationSupport ps = ~oE@y6Q
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new PaginationSupport(items, totalCount, pageSize, j2Uu8.8d
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startIndex); ~<q^4w.=7C
return ps; d^ZrI\AJ
} = `oGH
}, true); <F<jx"/)
} IhPX/P
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public List findAllByCriteria(final xoyH5ZK@
*{s
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DetachedCriteria detachedCriteria){ *1CZRfWI
return(List) getHibernateTemplate q1vsvL9Q
>!%F$$
().execute(new HibernateCallback(){ hvOl9W>
publicObject doInHibernate #Hi$squJ
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(Session session)throws HibernateException { xBg.QV
Criteria criteria = 22r$Ri_>
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detachedCriteria.getExecutableCriteria(session); Or,W2
return criteria.list(); >j_N6B!
} Tb<}GcwJ
}, true); w ^8i!jCy
} fe!{vrS
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public int getCountByCriteria(final c@/K}
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DetachedCriteria detachedCriteria){ 3jDAj!_ea
Integer count = (Integer) y]b&3&
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getHibernateTemplate().execute(new HibernateCallback(){ 40Hm+Ge
publicObject doInHibernate i4H,Ggb
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(Session session)throws HibernateException { feG#*m2g
Criteria criteria = C] >?YR4
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detachedCriteria.getExecutableCriteria(session); %)p?&_
return se&Q\!&M
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criteria.setProjection(Projections.rowCount ]8dzTEjk
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()).uniqueResult(); p^*A&7d:P
} Q$8&V}jVW
}, true); 1AAOg+Y@U"
return count.intValue(); Sgq?r-Q.
} sglH=0MP
}
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用户在web层构造查询条件detachedCriteria,和可选的 LGT?/gup
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startIndex,调用业务bean的相应findByCriteria方法,返回一个 OmLe+,7'
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PaginationSupport的实例ps。 Z,7VOf6g
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ps.getItems()得到已分页好的结果集 4rrR;V"}
ps.getIndexes()得到分页索引的数组 ]..7t|^b&
ps.getTotalCount()得到总结果数 'mO>hD`V
ps.getStartIndex()当前分页索引 J+r:7NvZ
ps.getNextIndex()下一页索引 %3@-.=
ps.getPreviousIndex()上一页索引 tZan1C%p>
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 _(F8}s
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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 5&TH\2u
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一下代码重构了。 P$5K[Y4f
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我把原本我的做法也提供出来供大家讨论吧: QJ2D C
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首先,为了实现分页查询,我封装了一个Page类: e-*-91D
java代码: do:IkjU~
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/*Created on 2005-4-14*/ R'Uf#.
package org.flyware.util.page; fi [4F
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/** u7lO2C7
* @author Joa k8 z1AP
* $rm/{i_7
*/ D|$Fw5!^k6
publicclass Page { y_r(06"z1
8\Bb7*
/** imply if the page has previous page */ K/M2L&C
privateboolean hasPrePage; A\<W x/
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/** imply if the page has next page */ .?kq\.rQ
privateboolean hasNextPage; OJ r~iUr
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/** the number of every page */ CD[}|N
privateint everyPage; (nAL;:$x2
z]R%'LGu
/** the total page number */ vwAtX($
privateint totalPage; Q)=LbR{#
L}6!D zl
/** the number of current page */ 9qUkw&}H
privateint currentPage; mM.YZUX
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/** the begin index of the records by the current !<?<f
db
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query */ ?!y<%&U
privateint beginIndex; ;OZl'
. %`
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n x{MUN7
/** The default constructor */ dozC[4mF
public Page(){ \P7<q,OGS
%~L"TK`?
} ~z)JO'Z$
#mkf2Z=t-
/** construct the page by everyPage MUSsanCA
* @param everyPage Ll.P>LH
* */ J";4+wA7
public Page(int everyPage){ < n/ 2
this.everyPage = everyPage; }$i/4?dYsQ
} +t3o5&
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/** The whole constructor */ 1!NrndJ I
public Page(boolean hasPrePage, boolean hasNextPage, }=Ul8
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int everyPage, int totalPage, 8N \<o7t%
int currentPage, int beginIndex){ i` Q&5KL
this.hasPrePage = hasPrePage; GSW%~9WBa
this.hasNextPage = hasNextPage; pQ>|dH+.
this.everyPage = everyPage; aYn5AP'PH
this.totalPage = totalPage; Bj<s!}i{[
this.currentPage = currentPage; 4:5M,p
this.beginIndex = beginIndex; )qe
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} xpc{#/Nk
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/** `x_}mdR
* @return uVTacN%X
* Returns the beginIndex. #nw+U+qL
*/ zwz_K!229
publicint getBeginIndex(){ e;g7Ek3n
return beginIndex; @S:T8
*~}
} qw1W}+~g
#k?. dWZ!
/** \&b 9
* @param beginIndex p=odyf1hK
* The beginIndex to set. o(4gh1b%
*/ /l_u $"
publicvoid setBeginIndex(int beginIndex){ -K3d u&j
this.beginIndex = beginIndex; "$pbK:
} ?Yzw]ag.
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/** OTl9MwW
* @return .>z1BP:(
* Returns the currentPage. [!4xInS
*/ ?5J>]: +ZZ
publicint getCurrentPage(){ "YaT1`Kr
return currentPage; t<ZBp0
} ==Xy'n9'
wl&T9O;?
/** Qj|rNeM_
* @param currentPage \Y>b#*m(4
* The currentPage to set. D<|$ZuB4
*/ b3F KDm[
publicvoid setCurrentPage(int currentPage){ R:$E'PSx
this.currentPage = currentPage; b
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} m2"wMt"*V
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/** 8&M<?oe
* @return ="v`W'Pd
* Returns the everyPage. eh>
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*/ 0N~kq-6.\
publicint getEveryPage(){ ?|98Y"w
return everyPage; (~o"*1fk>
} +80bG(I_
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/** JsNj!aeU%
* @param everyPage *5.wwV
* The everyPage to set. 1y\bJ
*/ 3&CV!+z
publicvoid setEveryPage(int everyPage){ :;eQ*{ `\
this.everyPage = everyPage; :P/VBX h
} :9av]Yv&
cc3B}^@p=
/** ]A5Y/dd
* @return >KL=(3:":p
* Returns the hasNextPage. Hqs!L`oW)
*/ BGxwPJd
publicboolean getHasNextPage(){ ~^jPE)
return hasNextPage; K1^7v}P
} $}{[_2
Vjs'|%P7
/** {kw%7}!
* @param hasNextPage &bz% @p;
* The hasNextPage to set. }I-nT!D'y
*/ 3}!u8,P
publicvoid setHasNextPage(boolean hasNextPage){ tjt^R$[ @
this.hasNextPage = hasNextPage; pS|K[:5
} ;N?(R\*8
(WJ)!
/** &+&@;2
* @return Z|Oq7wzEH
* Returns the hasPrePage. T- _))
*/ 9:Oz-b
publicboolean getHasPrePage(){ oKsArZG
return hasPrePage; ?&-1(&
} #Tei0B7
3qn_9f ]
/** B}[f]8jrM
* @param hasPrePage 0&j90J$`
* The hasPrePage to set. 0FtwDM))
*/ /'aqQ
K<
publicvoid setHasPrePage(boolean hasPrePage){ (Hj[9[=
this.hasPrePage = hasPrePage; sYBmL]Hr
} |=*)a2
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/** `BK b60
* @return Returns the totalPage. DqT<bNR1*;
* cz1 + XpU
*/ ij;NM:|Sd
publicint getTotalPage(){ \fUX_0k9,
return totalPage; nAWb9Yk
} n0T|U
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/** `
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* @param totalPage 8T9s:/%
* The totalPage to set. .Y{x!Q"
*/ v:/\;2
publicvoid setTotalPage(int totalPage){ NI#]#yM+
this.totalPage = totalPage; Lv]%P.=[G
} "A"YgD#t
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} bf0,3~G,P
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T>'O[=UWh
,wes*
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上面的这个Page类对象只是一个完整的Page描述,接下来我写了一 <O
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个PageUtil,负责对Page对象进行构造: n
5R9<A^
java代码: oG1zPspL
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ioD8-
/*Created on 2005-4-14*/ 9Z!n!o7D
package org.flyware.util.page; ;W|NG3_y
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import org.apache.commons.logging.Log; 6T'UWh0S
import org.apache.commons.logging.LogFactory; =DJ:LmK
EN\cwa#FU
/** ,\iHgsZ
* @author Joa 0 (wu
* (Fon!_$:
*/ ~q}L13^k
publicclass PageUtil { (g@\QdH`|
mdEJ'];AH
privatestaticfinal Log logger = LogFactory.getLog 0|FxSc
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(PageUtil.class); zplv.cf#q
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/** wDh]vH[
* Use the origin page to create a new page TPJF?.le
'
* @param page nK :YbLdK,
* @param totalRecords ah:["< z<
* @return b(GV4%
*/ 5m0\ls\
publicstatic Page createPage(Page page, int 1#6emMV.`
H?];8wq$G
totalRecords){ d,Aa8I
return createPage(page.getEveryPage(), r[i^tIv6As
qIQ=OY=6
page.getCurrentPage(), totalRecords); B223W_0"o
} RbTGAA
KhfADqji|
/** JE-*o"&
* the basic page utils not including exception Bk~C$'x4
?h&XIM(
handler 5<dg@,\
* @param everyPage MSQ^ovph
* @param currentPage ]nUr E6
* @param totalRecords g~y0,0'j1\
* @return page /S"jO[n9b
*/ ?I6rW JcQ6
publicstatic Page createPage(int everyPage, int E+O{^C=
;yomaAr
currentPage, int totalRecords){ )~wKRyQff
everyPage = getEveryPage(everyPage); s6 g"uF>k
currentPage = getCurrentPage(currentPage); [[IMf-]
int beginIndex = getBeginIndex(everyPage, Pl/ dUt_
c EYHB1*cT
currentPage); Gn8sB
int totalPage = getTotalPage(everyPage, _GG\SWm
AhN3~/u%7
totalRecords); V'j+)!w5
boolean hasNextPage = hasNextPage(currentPage, xKSQz
X?'cl]1?
totalPage); +_7a/3kh
boolean hasPrePage = hasPrePage(currentPage); f"FFgQMkv
ad: qOm
returnnew Page(hasPrePage, hasNextPage, .g*N+T6O
everyPage, totalPage, jXE:aWQht
currentPage, B>L7UQ6_[
gUru=p
beginIndex); "5V;~}=S
} 60!%^O =
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privatestaticint getEveryPage(int everyPage){ 6/8K2_UeoW
return everyPage == 0 ? 10 : everyPage; (NvjX})eh
} T"z<D+pN
5U~KYy^v
privatestaticint getCurrentPage(int currentPage){ gPKf8{#%e
return currentPage == 0 ? 1 : currentPage; r&
a[?
} Pz2 b
wu.l-VmGp)
privatestaticint getBeginIndex(int everyPage, int [j0[c9.p[
+=8wZ]
currentPage){ mF;mJq<d
return(currentPage - 1) * everyPage; 1 jidBzu<
} BI`)P+K2
58s-RO6
privatestaticint getTotalPage(int everyPage, int M4C8K{}
@vlP)"
totalRecords){ +-<G(^
int totalPage = 0; <}RI<96
n>ui'}L
if(totalRecords % everyPage == 0) TF/NA\0c$
totalPage = totalRecords / everyPage; U*r54AyP
else }pMVl
totalPage = totalRecords / everyPage + 1 ; VC88re`
$z%(He
return totalPage; %1Q:{m
} Vn^GJ'^
1c0'i
privatestaticboolean hasPrePage(int currentPage){ l/G+Xj4M
return currentPage == 1 ? false : true; Rs<q^w]
} ZG^<<V$h
d&NnpjH}c
privatestaticboolean hasNextPage(int currentPage, srv4kodj
g{]6*`/Z
int totalPage){ `yv?PlKL
return currentPage == totalPage || totalPage == 3}H{4]*%_
1VgGF^cYR
0 ? false : true; ST?{H SCz
} j?N<40z
vkE`T5??
hU$o^ICH
} NuQ!huh
B r#{
:01d9|#
F=Bdgg9s
h< r(:.%!}
上面的这两个对象与具体的业务逻辑无关,可以独立和抽象。 sv=U^xI
inGUN??
面对一个具体的业务逻辑:分页查询出User,每页10个结果。具体 ;g!rc#z2g
5C!zEI)
做法如下: DPT6]pl"y
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 +c~&o83[
[q?RJmB]
的信息,和一个结果集List: w#b@6d
java代码: zQyI4RHG[
hBX*02p
M3jUnp&
/*Created on 2005-6-13*/ Q6HJ+H-Ub
package com.adt.bo; N\PdX$
"/zgh
import java.util.List; b{<?E };%
YCDH 0M
import org.flyware.util.page.Page; SI!A?34
!.6n=r8d
/** F{ %*(U
* @author Joa |cU75
S 1
*/ C<D$Y,[w
publicclass Result { o`iA&
l5T[6C
private Page page; @}4aF|
P2'N4?2
private List content; 8%,#TMOg
R/oi6EKv
/** [Qnf]n\FJ
* The default constructor Vc9rc}
*/ lI?P_2AaS
public Result(){ k'st^1T
super(); relt7 sK
} q!c=f!U?\l
zGtJ@HbB
/** _Tj&gyS
* The constructor using fields O >h`
* 4Fft[S(
* @param page ]Ucw&B*@
* @param content CGi;M=xr
*/
;2C
public Result(Page page, List content){ 5GM-*Ak @
this.page = page; wyy
1M+
this.content = content; K83'`W^
} D6L+mTN
aZb\uMePK
/** ;eYG\uKC{
* @return Returns the content. HEVjK$
*/ "Wj{+|f
publicList getContent(){ w^0hVrws=,
return content; /
dJz?0
} hVF^"$
:IZAdlz[@
/** S"&Gutu3o
* @return Returns the page. >`AK'K8{M
*/ PuJ3#H
T
public Page getPage(){ %+l95Dv1
return page; )k Wxp
}
~z:]rgX
q\@Zf}
/** ]VjvG};
* @param content `E$vWZq}
* The content to set. \E?3nQM
*/ nB`|VYmOP1
public void setContent(List content){ %&6QUv^
this.content = content; D|ceZ <9x
} _^&
q,S
N-K/jY
/** r!&174DSR1
* @param page B@(d5i{h
* The page to set. #4Z e2T|
*/ 1b~21n
publicvoid setPage(Page page){ #+ch
this.page = page; @S@VsgQ%3Z
} hr];!.Fv
} "OenYiz
F1.Xk1y%
1'o[9-
[h'u@%N|/
ID_4M_G
2. 编写业务逻辑接口,并实现它(UserManager, UfX~GC;B
zcP=+Y)YA
UserManagerImpl) c]uieig0~
java代码: X<,QSTP
}[akj8U
#KiJ{w'
/*Created on 2005-7-15*/ W_}j~[&
package com.adt.service; BzfR8mD
BaQyn 6B
import net.sf.hibernate.HibernateException; E4% -*n
5f7id7SI
import org.flyware.util.page.Page; ^t})T*hM0
4H6Fq*W{k
import com.adt.bo.Result; M[`[+5v
A&M_ J
/** `0qjaC
* @author Joa A1prYD
*/ s6~;)(r
publicinterface UserManager { a>OYJe
4v`/~a
public Result listUser(Page page)throws xS 1|t};
Odo)h
HibernateException; ;0Z-
j1;[6XG
} ` Tap0V
tBGLEeL/.
&za
}THm
<J<"`xKL
K80f_iT5
java代码: ,,uhEoH
;8^k=8
s>/Xb2\
/*Created on 2005-7-15*/ {g.YGO
package com.adt.service.impl; YIRe__7-NU
n}UJ-\$
import java.util.List; q=W.82.U
_p6r5Y
import net.sf.hibernate.HibernateException; 5.\p]>|G1
mS'Ad<
import org.flyware.util.page.Page; j{Px}f(=
import org.flyware.util.page.PageUtil; C7dq=(p&
P4#i]7%
import com.adt.bo.Result; 3Rb#!tx9
import com.adt.dao.UserDAO; 4MPy}yT*
import com.adt.exception.ObjectNotFoundException; ^y@
W\
import com.adt.service.UserManager; $U?]^
7n#-3#_mG
/** b#?sx"z
* @author Joa ``CM7|)>`
*/ 7"'RE95
publicclass UserManagerImpl implements UserManager { ~-k,$J?7
#//xOL3J
private UserDAO userDAO; ]R""L<K%HF
P*!`AWn
/** JH\:9B+:L
* @param userDAO The userDAO to set. Hl}lxK,]
*/ :f[ w
publicvoid setUserDAO(UserDAO userDAO){ eE'P)^KV
this.userDAO = userDAO; _O}m0c
} p/(Z2N"
#$Zx ].[lc
/* (non-Javadoc) p? L%'
* @see com.adt.service.UserManager#listUser oYN"L
_ \4#I(
(org.flyware.util.page.Page) :2KHiT5
*/ =H)]HxEEM
public Result listUser(Page page)throws d'96$e o~
/''=V.-N
HibernateException, ObjectNotFoundException { !Wr<T!T
int totalRecords = userDAO.getUserCount(); )l`Ks
if(totalRecords == 0) 4m<]qw
throw new ObjectNotFoundException
skl3/!
vSHPN|*
("userNotExist"); d3q%[[@
page = PageUtil.createPage(page, totalRecords); xmnBG4,f
List users = userDAO.getUserByPage(page); <<01@Q <