Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 s*}d`"YvH
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 :Ws3+OI'm3
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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 `wG&Cy]v
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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 cKy%0oTla
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。 AB#hhi#
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分页支持类: }#u}{
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java代码: ^jhHaN]G^
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package com.javaeye.common.util; TT&!WbA-Hk
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import java.util.List; RMrt4:-DI
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publicclass PaginationSupport { uTJ?@^nq
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publicfinalstaticint PAGESIZE = 30; EGMcU|yL
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privateint pageSize = PAGESIZE; O "h+i>|l
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privateList items; I2l'y8)d
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privateint totalCount; Em.?
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privateint[] indexes = newint[0]; &
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privateint startIndex = 0; <?nr"V
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public PaginationSupport(List items, int yq,5M1vR
@+!d@`w:z2
totalCount){ 9_/1TjrDN
setPageSize(PAGESIZE); U&a]gkr
setTotalCount(totalCount); ^e 6(#SqR
setItems(items); 6qA{l_V
setStartIndex(0); 6$5M^3$-
} 5Np. &
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public PaginationSupport(List items, int Wl2>U(lj
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totalCount, int startIndex){ Mo<p+*8u:
setPageSize(PAGESIZE); %`\{Nxk
setTotalCount(totalCount); gR>#LM&dG
setItems(items); 6%xl}z]o
setStartIndex(startIndex); e
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} &\K#UVDyhh
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public PaginationSupport(List items, int ,?f(~<Aj
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totalCount, int pageSize, int startIndex){ WL~`L!_. A
setPageSize(pageSize); K=>/(sWiq
setTotalCount(totalCount); i!nl%%
setItems(items); %?$"oWmenS
setStartIndex(startIndex); JZ7-?
o
} nC Z
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publicList getItems(){ d$Xvax,C
return items; U\z+{]<<
} ?0<3"2Db~
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publicvoid setItems(List items){ >y@w-,1he
this.items = items; K&h|r`W(
} ^YZ#P0 y
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publicint getPageSize(){ Dx%fW`
return pageSize; GgYomR:
} !14z4]b
}A;Xd/,'r
publicvoid setPageSize(int pageSize){ 334*nQ
this.pageSize = pageSize; wDG4rN9x
} KKzvoc?Bt
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publicint getTotalCount(){ btE+.V
return totalCount; / u{r5`4
} M>#{~zr
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publicvoid setTotalCount(int totalCount){ G#C)]4[n
if(totalCount > 0){ hU{%x#8}lK
this.totalCount = totalCount; EKf4f^<
int count = totalCount / k4P.}SJ?
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pageSize; >4E,_ `3N
if(totalCount % pageSize > 0) z,EOyi
count++; !]nCeo
indexes = newint[count]; cG'Wh@
for(int i = 0; i < count; i++){ Ww~0k!8,t
indexes = pageSize * V_QVLW
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i; #Grm-W9E
} 8FITcK^
}else{ vX\e*
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this.totalCount = 0; ~83P09\T%
} ^J_hkw~gO
} BTyVfq
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publicint[] getIndexes(){ UK,P?_e
return indexes; ccSS au5N
} DvCt^O*
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publicvoid setIndexes(int[] indexes){ (YOgQ)},
this.indexes = indexes; "q.uiz+1:
} 7fqYSMHR
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publicint getStartIndex(){ P}`1#$
return startIndex; N}G(pq}
} beE%%C]X
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publicvoid setStartIndex(int startIndex){ 8A .7=C' z
if(totalCount <= 0) P;&p[[7
this.startIndex = 0; Fr3t[:D
elseif(startIndex >= totalCount) bobkT|s^s
this.startIndex = indexes ^E17_9?
V&H8-,7z
[indexes.length - 1]; FOi`TZ8
elseif(startIndex < 0) ':]a.yA\1
this.startIndex = 0; w.p'Dpw
else{ {2r7:nvR
this.startIndex = indexes Ai18]QD-
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[startIndex / pageSize]; V&v~kzLr+
} V JL;+
} ot#kU 8f
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publicint getNextIndex(){ \r,.hUp
int nextIndex = getStartIndex() + L"%eQHEC&
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pageSize; !p2,|6Y`y
if(nextIndex >= totalCount) F5P{+z7
return getStartIndex(); $4JX#lkt
else *%'7~58ObS
return nextIndex; TR_oI<xB2
} v=1S
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publicint getPreviousIndex(){ 5G;^OI!g
int previousIndex = getStartIndex() - VQMd[/
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pageSize; mIEaWE;E"
if(previousIndex < 0) q<[ke
return0; 9k[},MM
else 4Xk;Qd
return previousIndex; <D;Q8
} L$c%u
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} ^i)Q
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抽象业务类 {)9HS~e T
java代码: %aE7id>v6
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/** s1 ^mk]
* Created on 2005-7-12
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*/ ?WtG|w
package com.javaeye.common.business; [piF MxZP
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import java.io.Serializable; Iki+5
import java.util.List; vp75u93
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import org.hibernate.Criteria; q
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import org.hibernate.HibernateException; V& j.>Y
import org.hibernate.Session; h* %0@
import org.hibernate.criterion.DetachedCriteria; \g:qQ*.
import org.hibernate.criterion.Projections; lJ] \
import ecqz@*d&
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org.springframework.orm.hibernate3.HibernateCallback; 'Kzr-)JS
import K!D!b'|bb
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org.springframework.orm.hibernate3.support.HibernateDaoS VfA5r`^
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upport; %v+fN?%x,d
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import com.javaeye.common.util.PaginationSupport; ~eV!!38
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public abstract class AbstractManager extends cYWy\+
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HibernateDaoSupport { Vkvb=
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privateboolean cacheQueries = false; h;ol"
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privateString queryCacheRegion; ogc('HqF^'
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publicvoid setCacheQueries(boolean a[74%L?
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cacheQueries){ 1S[5#ewB;j
this.cacheQueries = cacheQueries; ^'u;e(AaE
} t3#H@0<
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publicvoid setQueryCacheRegion(String tC@zM.v%
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queryCacheRegion){ Q(;B)
this.queryCacheRegion = OBw`!G*w
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queryCacheRegion; ,7fc41O3V
} bDFCZH-:'O
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publicvoid save(finalObject entity){ gR-Qj
getHibernateTemplate().save(entity); [#>$k
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} ZP63Alt
@
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publicvoid persist(finalObject entity){ .KU SNrs'
getHibernateTemplate().save(entity); n:bB$Ai2
} [6_Du6\h
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publicvoid update(finalObject entity){ Dd5xXs+c
getHibernateTemplate().update(entity); }rY?=I
} +F7<5YW&(
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publicvoid delete(finalObject entity){ -#S)}NEn
getHibernateTemplate().delete(entity); >Z2,^5P{
} 1t\b a1x
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publicObject load(finalClass entity, 8R)D ! 7[l
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finalSerializable id){ orB8Q\p'
return getHibernateTemplate().load DD@)z0W
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(entity, id); Xb<DpBrk
} ie$`pyj!x
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publicObject get(finalClass entity, %l8*t$8
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finalSerializable id){ &PRx,G5
return getHibernateTemplate().get ?y>Y$-v/C
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(entity, id); @@%i(>4Z
} 7>'uj7r]=
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publicList findAll(finalClass entity){ |-(IJG#)
return getHibernateTemplate().find("from A[^qq UL'
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" + entity.getName()); ]3O
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} CYPazOfj
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publicList findByNamedQuery(finalString ^])e[RN7?n
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namedQuery){ 6%gB
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return getHibernateTemplate o%Be0~n'
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().findByNamedQuery(namedQuery); :W.jNV{e\F
} y:[BP4H ?y
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publicList findByNamedQuery(finalString query, LbJtpwz>z
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finalObject parameter){ G3RrjWtO
return getHibernateTemplate ~lzdbX
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().findByNamedQuery(query, parameter); ^Yj"RM$;N
} AIZW@ Nq.5
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publicList findByNamedQuery(finalString query, Xh.+pJl,*
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finalObject[] parameters){ t6'61*)|0
return getHibernateTemplate e#>tM
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().findByNamedQuery(query, parameters); gw_|C|!P
} z 0~j
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publicList find(finalString query){ s~S?D{!
return getHibernateTemplate().find +yzcx3<
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(query); c]A
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} B|cA[
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publicList find(finalString query, finalObject {mNdL J
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parameter){ yh S#&)O
return getHibernateTemplate().find l iw,O 6
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(query, parameter); %$Aqbd
} $bk>kbl P
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public PaginationSupport findPageByCriteria S[vRw]*
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(final DetachedCriteria detachedCriteria){ )))2fskZ
return findPageByCriteria Osnyd+dJY
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); GGH;Z WSe
} #C4|@7w%
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public PaginationSupport findPageByCriteria d!o.ASL{
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(final DetachedCriteria detachedCriteria, finalint aC`Li^
}/20%fP
startIndex){ y =R
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return findPageByCriteria NdZ)[f:2
}d_<\
(detachedCriteria, PaginationSupport.PAGESIZE, DB#$~(o
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startIndex); *xPB<v2N:P
} GE@uOJ6H
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public PaginationSupport findPageByCriteria 29%=: *R$
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(final DetachedCriteria detachedCriteria, finalint D -6
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pageSize, @d&g/ccMxd
finalint startIndex){ 'GkvUrD9D$
return(PaginationSupport) 8/Mx5~ R
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getHibernateTemplate().execute(new HibernateCallback(){ a2o.a2
publicObject doInHibernate J;~E<_"Hn
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(Session session)throws HibernateException { S/VA~,KCe;
Criteria criteria = 4Q;<Q"
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detachedCriteria.getExecutableCriteria(session); }wfI4?}j}
int totalCount = >PIPp7C
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((Integer) criteria.setProjection(Projections.rowCount VgA48qZ
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()).uniqueResult()).intValue();
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criteria.setProjection 7%4.b7Q
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(null); as(*B-_n~
List items = iT.|vr1HG
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criteria.setFirstResult(startIndex).setMaxResults eQ<xp A
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(pageSize).list(); |<rfvsQ.
PaginationSupport ps = z?kd'j`FG
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new PaginationSupport(items, totalCount, pageSize, 7/?DP wbx
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startIndex); tq&Yek>C
return ps; 333u]
} UfKkgq#
}, true); [/OQyb4F<
} 5mavcle{4r
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public List findAllByCriteria(final 3D[=b%2\
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DetachedCriteria detachedCriteria){ 2:'lZQ
return(List) getHibernateTemplate 1~@|eWr|
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().execute(new HibernateCallback(){ O&V[g>x"U
publicObject doInHibernate s@~/x5jwCs
\f"1}f
(Session session)throws HibernateException { TEWAZVE*
Criteria criteria = hgO?+x
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detachedCriteria.getExecutableCriteria(session); .S!-e$EJ
return criteria.list(); 2.f|2:I
} F7T E|LZ
}, true); ~<,Sh~Ana.
} y(v_-6b
ao$):,2*
public int getCountByCriteria(final G9Qe121m
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DetachedCriteria detachedCriteria){ &@6 GI<
Integer count = (Integer) g$w6kz_[
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getHibernateTemplate().execute(new HibernateCallback(){ Hf%_}Du /`
publicObject doInHibernate SF< [FM%1
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(Session session)throws HibernateException { "w&/m}E,[
Criteria criteria = O]{*(J/t
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detachedCriteria.getExecutableCriteria(session); $<OhGk-
return ug#<LO-.Rd
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criteria.setProjection(Projections.rowCount #
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()).uniqueResult(); VR4%v9[1
} y|sma;D
}, true); {mSJUK?TKl
return count.intValue(); 8lwM{?k$
} _z8;lt
} 0d4cE10
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用户在web层构造查询条件detachedCriteria,和可选的 ETp'oh}?
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startIndex,调用业务bean的相应findByCriteria方法,返回一个 *jF#^=
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PaginationSupport的实例ps。 >nry0 ;z0,
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ps.getItems()得到已分页好的结果集 FkB{ SCJ
ps.getIndexes()得到分页索引的数组 1;Xgc@
ps.getTotalCount()得到总结果数 d(S}NH
ps.getStartIndex()当前分页索引 |scUo~
ps.getNextIndex()下一页索引 r)b<{u=]
ps.getPreviousIndex()上一页索引 U3F3((EYJ
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 Ei~f`{i
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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 'msmXX@q
>IY,be6>P
一下代码重构了。 /6U
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我把原本我的做法也提供出来供大家讨论吧: <*Y'lV
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首先,为了实现分页查询,我封装了一个Page类: DB@EVH
java代码: R2LK.bTVn
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/*Created on 2005-4-14*/ a+?~;.i~
package org.flyware.util.page; 'm O2t~n
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/** j} RzXJ~t
* @author Joa XnXb&@Y
* !Iq{ 5:
*/ &1GUi{I
publicclass Page { |(ocDmd
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/** imply if the page has previous page */ &iSD/W
privateboolean hasPrePage; Nn#u%xvJt
9#rt:&xo0
/** imply if the page has next page */ n
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privateboolean hasNextPage; \!H{Ks{#R.
B*@6xS[IL
/** the number of every page */ Dg2uE8k
privateint everyPage; 7>-yaL{
@ls.&BHUP
/** the total page number */ jO)&KEh
privateint totalPage; daX*}Ix
1r571B*O
/** the number of current page */ cwynd=^nC
privateint currentPage; >.LKct*5K
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/** the begin index of the records by the current ]}LGbv"`A
xjq0D[
query */ )|]Z>>%t
privateint beginIndex; )+Y&4Qu
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/** The default constructor */ P(h5=0`*PR
public Page(){ ^?"^Pmw
zk=\lp2
} e|'N(D}h*
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/** construct the page by everyPage &
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* @param everyPage ]d'^Xs
* */ _Bk
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public Page(int everyPage){ )saR0{e0N
this.everyPage = everyPage; Q$=*aUU%G
} }<[Db}?9
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/** The whole constructor */ HDS"F.l5
public Page(boolean hasPrePage, boolean hasNextPage, \*"`L3
km\%BD~
nNn56&N]
int everyPage, int totalPage, fk3kbdI
int currentPage, int beginIndex){ 8/Rm!.8+~
this.hasPrePage = hasPrePage; c8DZJSO
this.hasNextPage = hasNextPage; zvf3b!}
this.everyPage = everyPage; [7W(NeMk
this.totalPage = totalPage; \&q=@rJp(z
this.currentPage = currentPage; .3wY\W8Dr-
this.beginIndex = beginIndex; Alz~-hqQ
} @ {}rG8
3jPB#%F
/** SS8ocGX
* @return 3"rkko?A
* Returns the beginIndex. Lk.h.ST
*/ 7BFN|S_l
publicint getBeginIndex(){ xncwYOz
return beginIndex; ybvI?#
} GGE[{Gb9
_ #'9kx|)
/** oR %agvc^^
* @param beginIndex i\p:#'zk5
* The beginIndex to set. U e*$&VlT
*/ m m, lhIh
publicvoid setBeginIndex(int beginIndex){ ULl_\5s2
this.beginIndex = beginIndex; y1C/v:;
} lbkLyp2
#T%zfcUj
/** _413\`%8?
* @return xzk}[3P{
* Returns the currentPage. l3J$md|f
*/ ;~/4d-
publicint getCurrentPage(){ a[C&e,)}
return currentPage; "!q?P"
@C
} bK=c@GXS
PDC]wZd/
/** XxOn3i
* @param currentPage dDlG!F_=
* The currentPage to set. 6P+DnS[]
*/ XO
wiHW{
publicvoid setCurrentPage(int currentPage){ V0NVGRQ
this.currentPage = currentPage; Lt>7hBe"
} M#M?1(O/NE
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/** 6tdI6
* @return $Jf9;.
* Returns the everyPage. r/AHJU3&eY
*/ v2J0u:#,
publicint getEveryPage(){ Q!$IQJ]|Y
return everyPage; D 'L{wm
} ;Qa;@
detL jlE
/**
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* @param everyPage \"d?=uFe
* The everyPage to set. \cZfg%PN
*/ ,F:=(21
publicvoid setEveryPage(int everyPage){ <]Y[XI(kr
this.everyPage = everyPage; -,GEv%6c
} E1W:hGI
n`<U"$*
/** {A3m+_8
* @return #:{6b*}
* Returns the hasNextPage. @ER1zKK?
*/ x/ I;nMY
publicboolean getHasNextPage(){ 0<&M?^
return hasNextPage;
cht
} 3h&bZ
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/** 0QoLS|voA/
* @param hasNextPage 5Y-2
#
* The hasNextPage to set. T
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*/ r}EM4\r
publicvoid setHasNextPage(boolean hasNextPage){ uaxB -PZ
this.hasNextPage = hasNextPage; :qnokrGzB
} 1nB@zBQu-
NI\H
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/** EcW1;wH
* @return b1=pO]3u
* Returns the hasPrePage. S=O$JP79
*/ Wz{%"o
publicboolean getHasPrePage(){ !K\itOEP-
return hasPrePage; 3bts7<K=
} ^s*\Qw{Ii
evOb
/** 7@P656{
* @param hasPrePage q6&67u0
* The hasPrePage to set. -eL'KO5'
*/ /f&By
p
publicvoid setHasPrePage(boolean hasPrePage){ b *9-}g:
this.hasPrePage = hasPrePage; `a'`$'j
} <E}N=J'uJ
)ddsyFGW
/** P6we(I`"2
* @return Returns the totalPage. RbAt3k;y
* J wFned#T
*/ o? dR\cxj
publicint getTotalPage(){ la702)N{
return totalPage; PP-kz;|
} xt))]aH
kY!C_kFcn
/** 5_aw.s>
* @param totalPage u]*5Ex (?
* The totalPage to set. ysVi3eq
*/ w_H2gaQ
publicvoid setTotalPage(int totalPage){ 3{pk5_c
this.totalPage = totalPage; ]ym C3LV]
} w \DspF
/e<5Np\X
} 0||F`24
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kW(Kh0x
A'~#9@l<
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上面的这个Page类对象只是一个完整的Page描述,接下来我写了一 ,Hh*3rR^
4W-"|Z_x
个PageUtil,负责对Page对象进行构造: ^4UcTjh
java代码: wA",SBGX
y.ql#eQ,
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/*Created on 2005-4-14*/ >)y$mc6
package org.flyware.util.page; YkI9d&ib+
Y Z\@)D;
import org.apache.commons.logging.Log; GBr,LN
import org.apache.commons.logging.LogFactory; -t>Z
9
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/** G"C;A`6
* @author Joa ;NG1{]|Z
* Gl;f#}
*/ d<v~=
publicclass PageUtil { mQ=sNZ-d]
tj0Qr-/
privatestaticfinal Log logger = LogFactory.getLog SS0_P
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ZM
8U]0[X
(PageUtil.class); e&ts\0
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/** L]*`4L
* Use the origin page to create a new page m2ox8(sd
* @param page uAT/6@
* @param totalRecords Y2D>tpqNw
* @return ) H+d.Y
*/ "?[7#d])
publicstatic Page createPage(Page page, int #@q1Ko!NZ
kw#X]`c3
totalRecords){ {RJ52Gx(
return createPage(page.getEveryPage(), L,W:,i/C
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page.getCurrentPage(), totalRecords); jf 8w7T
} }Q;BQ2[
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/** o
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* the basic page utils not including exception ovSH}h!
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handler [lZ=s[n.
* @param everyPage n@_)fFD%
* @param currentPage w?i)/q
* @param totalRecords Z]7tjRvq)
* @return page :k\}Ik
*/ .}`V I`z*
publicstatic Page createPage(int everyPage, int ^t7_3%%w
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currentPage, int totalRecords){ CxkMhd8qz
everyPage = getEveryPage(everyPage); >I|<^$/
currentPage = getCurrentPage(currentPage); mSy|&(l
int beginIndex = getBeginIndex(everyPage, )7tV*=?Ic8
*13g<#$
currentPage); u4@, *tT
int totalPage = getTotalPage(everyPage, 2m|Eoc&M_
B$@1QG
totalRecords); .v N)A
*
boolean hasNextPage = hasNextPage(currentPage, uQO(?nCi
/@6E3lhS
totalPage); P>>f{3e.
boolean hasPrePage = hasPrePage(currentPage); w 7Cne%J8
>xklt"*U,
returnnew Page(hasPrePage, hasNextPage, suzFcLxo
everyPage, totalPage, =CWc`
currentPage, |{zHM2 3gD
5aa}FdUq
beginIndex); hkkF1
h
} ,"x23=]
8.:B=A
privatestaticint getEveryPage(int everyPage){ 2*N&q|ED
return everyPage == 0 ? 10 : everyPage; 6\%r6_.d
} B >ms`|q=l
xV"6d{+
privatestaticint getCurrentPage(int currentPage){ 6s> sj7
return currentPage == 0 ? 1 : currentPage; ~ W2:NQ>i
} 9yO{JgKA
qn5yD!1
privatestaticint getBeginIndex(int everyPage, int @?'t@P:4
U+(Z#b(Q
currentPage){ (N)r#"FV
return(currentPage - 1) * everyPage; :y4)qF
} <)r,CiS
@$2`DI{_^
privatestaticint getTotalPage(int everyPage, int =ZxW8DK
H(
totalRecords){ NEjPU#@c
int totalPage = 0; nh _DEPMq
Ry3+/]
if(totalRecords % everyPage == 0) ORUWslMt
totalPage = totalRecords / everyPage; F<6KaZ|
else n$XMsl.>
totalPage = totalRecords / everyPage + 1 ; 1EKcD^U,
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return totalPage; 9:bh3@r/
}
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privatestaticboolean hasPrePage(int currentPage){ XLkL#&Ir
return currentPage == 1 ? false : true; MzBfHt'Rk
} _C7abw-
Z!q2F%02FO
privatestaticboolean hasNextPage(int currentPage, 'w>uFg1.
=; ~%L
int totalPage){ dSA
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return currentPage == totalPage || totalPage == M="WUe_
,mAB)at
0 ? false : true; X67C;H+
} '6Pu[^x
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} Pn'QOVy
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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。 pfJVE
3Hb .ZLE#
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 pIU#c&%<9
Zztt)/6*
做法如下: /xX,
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 qaCi)f!Dl
~pX(w!^
的信息,和一个结果集List: Z~-T0Ab-
java代码: #cSw"A
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/*Created on 2005-6-13*/ 7gZVg@
package com.adt.bo; _{2Fx[m%
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import java.util.List; hy!'Q>[`
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import org.flyware.util.page.Page; aPY>fy^8D
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/** R%]9y]HQ
* @author Joa HwVgT"
*/ (DELxE
publicclass Result { x|,aV=$o
XEgx#F ;F
private Page page; Nw3I
3 -_U-:2"
private List content; pdcwq~4~%
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/** >2/wzsW
* The default constructor QBPvGnb
*/ ^ T:qT*v
public Result(){ CwEWW\Bu
super(); w ;s ]n
} +qSr=Y:+
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/** Ck/_UY|
* The constructor using fields p0y0T|H^
* m|e*Jc
* @param page 0,L$x*Nj5
* @param content ai;gca_P#
*/ g.`t!6Hc
public Result(Page page, List content){ &\6`[# bT
this.page = page; 23u1nU[0
this.content = content; 4MF}FS2)
} gQk#l\w_
VT.{[Kl
/** 8H%I|fm
* @return Returns the content. asmW
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*/ abJ@>7V
publicList getContent(){ 3qxG?G N
return content; utm+\/
} (-Ct!aW|
K+\0}qn
/** 1A/c/iC
* @return Returns the page. )zL"r8si
*/ /nD0hb
public Page getPage(){ eI=Y~jy
return page; -RqAT 1
} I}G}+0geV
fFTvf0j
/** , C@hTOT
* @param content W1vAK
* The content to set. 2Fp]S
a
*/ 9snyX7/!L
public void setContent(List content){ '__3[D
this.content = content; ZNH*[[Pf
} 1~xn[acy
{ d2f)ra.
/** |>o0d~s
* @param page 6L6~IXL>
* The page to set. -JQg ~1
*/ }A'<?d8
publicvoid setPage(Page page){ ,w/mk$v
this.page = page; nXeK,C
} gq:TUvX
} i>if93mpj
I.\f0I'.
2}#wdJ`
feq6!k7
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2. 编写业务逻辑接口,并实现它(UserManager, W!4V:(T
W.6JnYLQ&
UserManagerImpl) >~wk
java代码: e'?doP
a$ ! {Tob2
>La L!PnZ
/*Created on 2005-7-15*/ 1q233QSW)
package com.adt.service; =&*QT&e
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F'C
import net.sf.hibernate.HibernateException; n\ ',F
.]ZuG
import org.flyware.util.page.Page; acju!,G
Py25k 0j!
import com.adt.bo.Result; ]3y5b9DuW
56
kgL;$h
/** y=qo-v59'
* @author Joa n]fbV/ x
*/ ]GRq
publicinterface UserManager { DUliU8B}\
-r'seb5
public Result listUser(Page page)throws ~S_IU">E
(cA|N0
HibernateException; L(n~@gq
9-iB?a7{.
} <^'+]?
jhbH6=f4]^
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_,0!ZP-
=
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java代码: U+r#YE.
6F&]Mk]V8
|Ge/|;.v`
/*Created on 2005-7-15*/ 3a)Q:#okD
package com.adt.service.impl; /FV6lR!0^
0#{]!>R
import java.util.List; YB1DL^:
_
*s
import net.sf.hibernate.HibernateException; qe"6#@b *|
<07W&`Dw
import org.flyware.util.page.Page; sr@XumT
import org.flyware.util.page.PageUtil; }_/h~D9-T#
yxUVM`.~
import com.adt.bo.Result; q[+:t
import com.adt.dao.UserDAO; &trh\\I"
import com.adt.exception.ObjectNotFoundException; -LK(C`gB
import com.adt.service.UserManager; f=O>\
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/** BCZnF
/Zo
* @author Joa PZg]zz=V4
*/ uvv-lAbjw
publicclass UserManagerImpl implements UserManager { [%,=0P}
PyxN _agf
private UserDAO userDAO;
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DSZhl-uGM
/** AbI*/|sY
* @param userDAO The userDAO to set. 4x?u5L
9o
*/ 9.#R?YP$
publicvoid setUserDAO(UserDAO userDAO){ >8;%F<o2
this.userDAO = userDAO; d4h(F,K7V
} )[X!/KR90
)bU")
/* (non-Javadoc) fvMhq:Bu
* @see com.adt.service.UserManager#listUser E/P53CD
?F!J@Xn5
(org.flyware.util.page.Page) !,!tNs1 K
*/ il%tu<E#J~
public Result listUser(Page page)throws :p)9Heu
Xt*%"7yTp
HibernateException, ObjectNotFoundException { tUF]f6
int totalRecords = userDAO.getUserCount(); &0Zk3D4
if(totalRecords == 0) c!wB'~MS#
throw new ObjectNotFoundException 7{F9b0zwk
PlRs-% d
("userNotExist"); vS__*}^
page = PageUtil.createPage(page, totalRecords); C\@YH]
List users = userDAO.getUserByPage(page); pdqa)>$
returnnew Result(page, users); .V:<