Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ]qk`Yi
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 X#MC|Fzy@
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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 @.QuIm8,
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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 !]z4'* )W
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。 [bBPs&7u
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分页支持类: [F,s=,S'M
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java代码: ORIXcj]
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package com.javaeye.common.util; BGO
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import java.util.List; "@jYZm8
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publicclass PaginationSupport { lO1]P&@
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publicfinalstaticint PAGESIZE = 30; r!p:73L8
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privateint pageSize = PAGESIZE; ofCN[u
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privateList items; Tx$bg(
,@8*c0Y~<!
privateint totalCount; aq^OzKP?
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privateint[] indexes = newint[0]; YE-}1&8
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privateint startIndex = 0; c 1{nOx
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public PaginationSupport(List items, int 19\
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totalCount){ 7{OD/*|
setPageSize(PAGESIZE); 2t#[$2mg\0
setTotalCount(totalCount); 6lQP+! EF
setItems(items); RJD(c#r$
setStartIndex(0); ooN?x31
} mP./e8
m*>gG{3;
public PaginationSupport(List items, int {"*gX&;~
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totalCount, int startIndex){ VzuU0
setPageSize(PAGESIZE); f(c#1AJE53
setTotalCount(totalCount); mqQC`Aqx:
setItems(items); @dhnpR:L
setStartIndex(startIndex); N >];xb>
} qoC<qn{.a
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public PaginationSupport(List items, int 6dqI{T-i?
*XG.?%x*|
totalCount, int pageSize, int startIndex){
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setPageSize(pageSize); L\t?^u
setTotalCount(totalCount); R9~c: A4G
setItems(items); 'RIx}vPf
setStartIndex(startIndex); fRcy$
} j<d,7
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publicList getItems(){ !=v d:,
return items; kSjvY&n%
} B[7Fq[.mh
@F!oRm5
publicvoid setItems(List items){ _Q\<|~
this.items = items;
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} ?;
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publicint getPageSize(){ "'I|#dKoG
return pageSize; rCdTn+O2
} ,y[w`Q\
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publicvoid setPageSize(int pageSize){ sl G%o5|m
this.pageSize = pageSize; _qSVYVJ u
} qfgw^2aUa
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publicint getTotalCount(){ fa(- &;q
return totalCount; nm@.]
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} j
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publicvoid setTotalCount(int totalCount){ 3\a VZx!
if(totalCount > 0){ Qs8Rb ]%|
this.totalCount = totalCount; 'F^"+Xi
int count = totalCount / #UqE%g`J
2;ac&j1
pageSize; ZtOv'nTD
if(totalCount % pageSize > 0) 1,pPLc(
count++; VJ-To}
indexes = newint[count]; cwI3ANV
for(int i = 0; i < count; i++){ [}?E,1Q3
indexes = pageSize * Lz`_&&6
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i; _16r8r$V
} {[r}gS%
}else{ ZE6W"pbjU
this.totalCount = 0; %ERR^
} O7zj8
} ?q}:ojrs1
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publicint[] getIndexes(){ vH>s2\V"
return indexes; )*9,H|2nS
} p 8lm1;
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publicvoid setIndexes(int[] indexes){ O+ J0X*&x
this.indexes = indexes; Q^Q6|
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} mC!^`y)
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publicint getStartIndex(){ FLaj|Z~#)
return startIndex; wRe2sjM
} CjmF2[|
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publicvoid setStartIndex(int startIndex){ uB+:sX-L
if(totalCount <= 0) \-{2E
this.startIndex = 0; ]?0]K!7Ea
elseif(startIndex >= totalCount) ic?(`6N8
this.startIndex = indexes U/>l>J5
}n?D#Pk,
[indexes.length - 1]; Ap!i-E,"J
elseif(startIndex < 0) ;Bne=vjQp
this.startIndex = 0; @e^(V$ap
else{ NsL!AAN[V
this.startIndex = indexes dp*E#XCr1
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[startIndex / pageSize]; F|?}r3{aJ
} g ~>nT>6
} P+Sgbtc
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publicint getNextIndex(){ H8qWY"<Vd
int nextIndex = getStartIndex() + )Xice=x9
:Oi}X7\
pageSize; a*!9RQ
if(nextIndex >= totalCount) X-cP'"
return getStartIndex(); `/o| 1vv@_
else ?fNUmk^A<
return nextIndex; G-Zn-I
} TZa LB}4
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publicint getPreviousIndex(){ k~=P0";
int previousIndex = getStartIndex() - _ IlRZ} f
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pageSize; G PL^!_
if(previousIndex < 0) ^6PKSEba
return0; ->J5|c#
else *!`bC@E
return previousIndex; FQ]5W |e
} @4P_Yfn
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} !1`f84d
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抽象业务类 qex::Qf
java代码: Eg$Er*)h8
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/** 5)p! }hWs
* Created on 2005-7-12 0MN)Z(Sa
*/ DU:+D}vl
package com.javaeye.common.business; #QiNSS
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import java.io.Serializable; 3SI%>CO}
import java.util.List; "QM2YJ55m`
)H%RwV#
import org.hibernate.Criteria; 9&1$\ZH
import org.hibernate.HibernateException; f!JSb?#3
import org.hibernate.Session; oX?~
import org.hibernate.criterion.DetachedCriteria; gg$:U
import org.hibernate.criterion.Projections; *)Pb-c
import M&0U@ r-
[m9=e-KS$Q
org.springframework.orm.hibernate3.HibernateCallback; /B5rWJ2AS
import +l>X Z
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org.springframework.orm.hibernate3.support.HibernateDaoS "_ON0._(/
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upport; W
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import com.javaeye.common.util.PaginationSupport; +(oExp(!
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public abstract class AbstractManager extends ,UneS
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HibernateDaoSupport { |6~ Kin
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privateboolean cacheQueries = false; }\vw>iHPX@
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privateString queryCacheRegion; jgT *=/GH2
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publicvoid setCacheQueries(boolean %wIb@km
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cacheQueries){ s h}eKwh
this.cacheQueries = cacheQueries; 'HvJ]}p
} GX%r-
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publicvoid setQueryCacheRegion(String G[Jz(/yNH
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queryCacheRegion){ +xBM\Dz8
this.queryCacheRegion = !$fF3^8-
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queryCacheRegion; C.+:FY.H
} mWH;-F*%
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publicvoid save(finalObject entity){ w,z m!
getHibernateTemplate().save(entity); ^\3z$ntF
} 8%^W<.Y
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publicvoid persist(finalObject entity){ u$+nl~p[&
getHibernateTemplate().save(entity); Q$~_'I7~Mz
} fs*OR2YG7
+}NQ|y V
publicvoid update(finalObject entity){ ~uEI}z
getHibernateTemplate().update(entity); #;<dtw
} S5wkBdr{
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publicvoid delete(finalObject entity){ =[`gfw
getHibernateTemplate().delete(entity); ;>jOB>b{h
} .$ 5*v
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publicObject load(finalClass entity, :bz;_DZP
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finalSerializable id){ qj,^"rp1:
return getHibernateTemplate().load sKDL=c;?j
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(entity, id); VBe&of+
} BXLw
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publicObject get(finalClass entity, ;ZR^9%+y9
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finalSerializable id){ BDPF>lPf<
return getHibernateTemplate().get
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(entity, id); dt(Lp_&v
} {0Ej*%
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publicList findAll(finalClass entity){ ux>LciNq
return getHibernateTemplate().find("from &F|Wk,y
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" + entity.getName()); 910N1E
} B-tLRLWn
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publicList findByNamedQuery(finalString }Z% j=c"d
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namedQuery){ 2m2$jp0
return getHibernateTemplate +<f!#4T
p *GAs
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().findByNamedQuery(namedQuery); K2-nP2Go?
} 'o-J)+oa
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publicList findByNamedQuery(finalString query, qX*Xo[Xp
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finalObject parameter){ o^<W3Z
return getHibernateTemplate y?8V'.f|
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().findByNamedQuery(query, parameter); _)^`+{N<
} seNH/pRb
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publicList findByNamedQuery(finalString query, =B
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finalObject[] parameters){ :c0 |w
return getHibernateTemplate &Y$)s<u8.
KPdlg.
().findByNamedQuery(query, parameters); aN~x3G
} anFl:=
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publicList find(finalString query){ +!<{80w
return getHibernateTemplate().find jx8hh}C
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(query); r%^XOw<'
} fDZnC Fa
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publicList find(finalString query, finalObject u&$1XZ!es
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parameter){ G>W:3y
return getHibernateTemplate().find Q?-u J1J
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(query, parameter); 30L/-+r1
}
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public PaginationSupport findPageByCriteria X$ 76#x
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(final DetachedCriteria detachedCriteria){ _<l 9j;6
return findPageByCriteria @wW)#!Mou
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); }3y Q*<
} Ui;PmwQc&
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public PaginationSupport findPageByCriteria WvHy}1W
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(final DetachedCriteria detachedCriteria, finalint kl9<l*
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startIndex){ dF0:'y
return findPageByCriteria Kw,ln<)2
}#9 |au`
(detachedCriteria, PaginationSupport.PAGESIZE, >
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startIndex); gj1l9>f>]a
} 1A/li%
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public PaginationSupport findPageByCriteria O<6!?1|KP
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(final DetachedCriteria detachedCriteria, finalint p|R]/C0f
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pageSize, !8Q9RnGn
finalint startIndex){ (1?k_!)T
return(PaginationSupport) wq`\p['Q,
p?eQN
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getHibernateTemplate().execute(new HibernateCallback(){ -Hu]2J)
publicObject doInHibernate ,Y2){8#l
+0FmeM&`h_
(Session session)throws HibernateException { Ov8{ny
Criteria criteria = px.]m-
' $X}' u
detachedCriteria.getExecutableCriteria(session); ?c#v'c^=h
int totalCount = 4p_@f^v~QH
b:(*C
((Integer) criteria.setProjection(Projections.rowCount Cr%6c3aQ
Nyo,6 AA
()).uniqueResult()).intValue(); 8??%H7~
criteria.setProjection qGc>+!y
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(null); ?3Dsz
List items = A49HYX-l
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criteria.setFirstResult(startIndex).setMaxResults j8#B
a+{95"4
(pageSize).list(); H1g"09?h6o
PaginationSupport ps = U0%m*i
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new PaginationSupport(items, totalCount, pageSize, OgBZoTT
p(Bn!
startIndex); J0"<}"
return ps; ?$FvE4!n
} L[9]Ez$2+
}, true); s7TV@Y)
} JIyIQg'5i
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public List findAllByCriteria(final )9JuQ_R
+{S^A)
DetachedCriteria detachedCriteria){ sy.U]QG
return(List) getHibernateTemplate wXxk+DV@
~",,&>#[K
().execute(new HibernateCallback(){
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publicObject doInHibernate "Crm\UI6
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(Session session)throws HibernateException { bAqaf#}e
Criteria criteria = :i ft{XR'
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detachedCriteria.getExecutableCriteria(session); 4`+hX'
return criteria.list(); ZICcZG_y
} {,rVA(I@
}, true); f;
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} (J^2|9r
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public int getCountByCriteria(final zSFqy'b.M-
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DetachedCriteria detachedCriteria){ #.n%$r
Integer count = (Integer) <xeo9'k6&
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getHibernateTemplate().execute(new HibernateCallback(){ I7nZ9n|KU
publicObject doInHibernate Pkw` o #
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(Session session)throws HibernateException { ?krgZ;Jj
Criteria criteria = I*^3 Z
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detachedCriteria.getExecutableCriteria(session); |%~sU,Y\(
return H|iY<7@
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criteria.setProjection(Projections.rowCount ?5L.]Isa5
c0%%X!!$
()).uniqueResult(); ]o]*&[C
} cCH2=v4hU
}, true); pZ4]oK\*
return count.intValue(); P$= Y 5
} va/$dD9
} U3yIONlt
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用户在web层构造查询条件detachedCriteria,和可选的 q0hg0DC[;
)} H46
startIndex,调用业务bean的相应findByCriteria方法,返回一个 p}'uCT
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PaginationSupport的实例ps。 f}cz_"o4
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ps.getItems()得到已分页好的结果集 eY1$smh t
ps.getIndexes()得到分页索引的数组 ~D)!zQkD
ps.getTotalCount()得到总结果数 ?X.MKNbp
ps.getStartIndex()当前分页索引 bvMa|;f1
ps.getNextIndex()下一页索引 3:h9cO/9
ps.getPreviousIndex()上一页索引 Ge>%?\
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 m b\}F9
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,尤其是上面的示例代码,让我着实觉得该对我原来的分页查询做 R;_U BQ)
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一下代码重构了。 YEWHr>&Z
w-%H\+J
我把原本我的做法也提供出来供大家讨论吧: ]r{-K63P{!
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a
首先,为了实现分页查询,我封装了一个Page类: DVNGV
java代码: oO4
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/*Created on 2005-4-14*/ 2>3gC_^go
package org.flyware.util.page; K`nI$l7hg
j3bTa|UdT
/** %7PprN0>
* @author Joa 6.Nu[-?
* uLsGb=m%b
*/ `A)9
publicclass Page { s9<fPv0w
U3+{!}gn
/** imply if the page has previous page */ ~O)Uz|
privateboolean hasPrePage; .3%eSbt0
:Gh*
d)
/** imply if the page has next page */ @83h/Wcxd
privateboolean hasNextPage; uw@z1'D[i"
,x?H]a)
/** the number of every page */ {g2cm'hD
privateint everyPage; IPU'M*|Q
_,i]ra{%
/** the total page number */ 3:i4DBp,i
privateint totalPage; bUC-}
zv]-(<B
/** the number of current page */ iAX\F`
privateint currentPage; Rla4XN=mf
dUtxG ~9
/** the begin index of the records by the current &X
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@+VvZc2Y
query */ kyQ%qBv ^
privateint beginIndex; uD&!]E3
.#uRJo%8
3,bA&c3
/** The default constructor */ xQ62V11R6
public Page(){ 8{HeHU
L!3AiAnr
} W>Y8 u8
AF1";duA
/** construct the page by everyPage <R7*00
* @param everyPage `)F lb|da
* */ w|x=^
public Page(int everyPage){ z
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this.everyPage = everyPage; )EYsqj
} %Yg;s'F>#q
I?v)>||Q
/** The whole constructor */ XnQd(B`M
public Page(boolean hasPrePage, boolean hasNextPage, Bo?uwi
CJ_X:Frj)
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int everyPage, int totalPage, X6~y+R
int currentPage, int beginIndex){ BJk:h-m [
this.hasPrePage = hasPrePage; Jp.Sow
this.hasNextPage = hasNextPage; />XfK,c-
this.everyPage = everyPage; Z&=K+P
this.totalPage = totalPage; PNXZ 3:W
this.currentPage = currentPage; J.:"yK""
this.beginIndex = beginIndex; >\K<q>*
} /d5_-AB(v
a\\B88iRRZ
/** kwdmw_
* @return ^ 3LM%B
* Returns the beginIndex. h)q:nlKUW
*/ PG9won5_
publicint getBeginIndex(){ $Trkow%F]
return beginIndex; =1lKcA[z
} J={$q1@lq
Z!C\n[R/
/** -Q;5A;sr2
* @param beginIndex _> .TB\
* The beginIndex to set. 9Ps:]Kp!vN
*/
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publicvoid setBeginIndex(int beginIndex){ @QtJ/("&WC
this.beginIndex = beginIndex; /a6\G.C5
} *}3e'0`
!h7`W*::
/** Ly\$?3h
* @return ;C-5R U
V
* Returns the currentPage. bslv_OxJ
*/ BnqAv xX
publicint getCurrentPage(){ =2bW"gs
I
return currentPage; je.jui"
}
}nYm^Yh
SY["(vP%#
/** kmM_Af&
* @param currentPage +H_Jr'/
* The currentPage to set. H|T:_*5
*/ &qFdP'E;$
publicvoid setCurrentPage(int currentPage){ kjN9(&D
this.currentPage = currentPage; nG$*[7<0u
} 3j0/&ON
@g[p>t> *
/** &529.>
* @return *-Y77p7u
* Returns the everyPage. WDKj)f9cy
*/ 2Y&z}4'j
publicint getEveryPage(){ ,]~iIoTi
return everyPage; WE4:Jy
} {O#=%o[
B+ GPTQSTb
/** OCo=h|qBp
* @param everyPage jfl7L"2
* The everyPage to set. Xca Y'k#
*/ u~Q0V J~
publicvoid setEveryPage(int everyPage){ J'Yj_
this.everyPage = everyPage; ' rHkJ
} Iqe4O~)
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/** b0x9}
* @return 2j H`
* Returns the hasNextPage. Tx0/3^\>8A
*/ uwQ{y>SG
publicboolean getHasNextPage(){ !li Q;R&
return hasNextPage; :^3MN
} 6YrkS;_HS
.Q?cNSWU
/** 2#@S6zc
* @param hasNextPage \Yz>=rY
* The hasNextPage to set. =]\,I'
*/ DkA cT[
publicvoid setHasNextPage(boolean hasNextPage){ _+wou(1y
this.hasNextPage = hasNextPage; i5|A\Wv"
} J^pL_
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/**
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* @return ]&yO>\MgJB
* Returns the hasPrePage. Mmbb}(<
*/ SYB
}
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publicboolean getHasPrePage(){ k5xzC&
return hasPrePage; 6"[`"~9'V
} :doP66["!
gx4`pH;B\
/** =iRc&
* @param hasPrePage kxhvy,t
* The hasPrePage to set. "X>Z!>
*/
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publicvoid setHasPrePage(boolean hasPrePage){ %D\TLY
this.hasPrePage = hasPrePage; /Y:_qsO1
} el.;T*Wn
B~lrd#qC
/** j3P)cz-0/L
* @return Returns the totalPage. er,R}v
* h;^h[q1'
*/ 7w|W\J^7r
publicint getTotalPage(){ /^DDU!=(<
return totalPage; {]]nQ
} M=x/PrY"R
pJVzT,poh
/** ^;c!)0Q<Z
* @param totalPage %@G<B
* The totalPage to set. *@dRL3c^=
*/ 6fY(u7m|p
publicvoid setTotalPage(int totalPage){ hqFK2
lR
this.totalPage = totalPage; g*b%
} %$Wt"~WE"O
C
z4"[C`;
} EfcoJgX
IJs*zzR
I&YYw8&
!0fpD'f!n
UALwr>+VJ
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 WA8Qt\Q
\QBODJ1
个PageUtil,负责对Page对象进行构造: 6BFtY+.y
java代码: 8K]fw{-$L
.O3i"X]
pYI`5B4
/*Created on 2005-4-14*/ d&wg\"E
package org.flyware.util.page; E6NkuBQ((
MQD UJ^I$
import org.apache.commons.logging.Log; >VE,/?71@
import org.apache.commons.logging.LogFactory; G! zV=p
%TPnC'2
/** ]"q)X{G(+
* @author Joa Q68&CO(rE
* @mNf(&
*/ /.aZXC$]
publicclass PageUtil { +AtZltM i
a_L&*%;
privatestaticfinal Log logger = LogFactory.getLog f&js,NU"
1G=1FGvP
(PageUtil.class); ^%)'wDK
6QLWF@
/** <)uUAh
* Use the origin page to create a new page hc"+6xc
* @param page H"WkyvqXb
* @param totalRecords ]N:SB
* @return /$! /F@^
*/ 37v!:xF!
publicstatic Page createPage(Page page, int gJ+MoAM"
AVOzx00U
totalRecords){ Ii?<Lz
return createPage(page.getEveryPage(), (%oZgvM
,`^B!U3m
page.getCurrentPage(), totalRecords); f:B+R
} .*r?zDV
`*&*jdq&i
/**
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* the basic page utils not including exception Nw+0b4{
S?D|"#-,
handler pez[qs
* @param everyPage ^a[7qX_B
* @param currentPage %?<C
?.
* @param totalRecords \%KJ+PJ
* @return page KR^lmN
*/ 1wW8D>f]K
publicstatic Page createPage(int everyPage, int x9a*^l
KX"?3#U#Fm
currentPage, int totalRecords){ t*.O >$[
everyPage = getEveryPage(everyPage); .YYiUA-i9n
currentPage = getCurrentPage(currentPage); XK`>#*"V
int beginIndex = getBeginIndex(everyPage, yXh=~:1~
{[jcT>.3j
currentPage); 5H6m{ng
int totalPage = getTotalPage(everyPage, fv5'Bl
w+=>b
totalRecords); ;'`T
boolean hasNextPage = hasNextPage(currentPage, [`Ol&R4k
d8C?m*3J
totalPage); !?DPI)
boolean hasPrePage = hasPrePage(currentPage); WLP A51R
2_x}wB0P
returnnew Page(hasPrePage, hasNextPage, _ ;O$ot\5
everyPage, totalPage, /j0<x^m/
currentPage, 7Wmk"gp
A@Z&ZBDg
beginIndex); y5kqnibh@
} czi$&(N0w$
%ErLL@e
privatestaticint getEveryPage(int everyPage){ L
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return everyPage == 0 ? 10 : everyPage; Cl7IP<.
} rqxoqc Z
mEa\0oPGB
privatestaticint getCurrentPage(int currentPage){ k_r12Bu
return currentPage == 0 ? 1 : currentPage; :2^%^3+V
} fZ`b~ZBwIj
c_~)#F%P
privatestaticint getBeginIndex(int everyPage, int [uT&sZxmg
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currentPage){ )TP1i
return(currentPage - 1) * everyPage; -;a}'1HOE
} Ett%Y*D+J
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privatestaticint getTotalPage(int everyPage, int o|>2X[T
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totalRecords){ W2O
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int totalPage = 0; LcoJltY{5
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if(totalRecords % everyPage == 0) @.yp IE\
totalPage = totalRecords / everyPage; 'v GrbmK
else Y#V`i K
totalPage = totalRecords / everyPage + 1 ; v,bes[Ik
q{ItTvL
return totalPage; v?,_SVgAi
} = 7d{lK
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privatestaticboolean hasPrePage(int currentPage){ \sEq
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return currentPage == 1 ? false : true; BD&JbH!(
} 3V?JX5X\
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privatestaticboolean hasNextPage(int currentPage, 1\z5[
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int totalPage){ 3lcd:=
return currentPage == totalPage || totalPage == Z
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0 ? false : true; 8~YhT]R=
} a[Ah
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} 4:.yE|@h[
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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。 NYA,
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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 LX[<Wh_X(
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做法如下: .K]n<+zW
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 Azvj(j
: KhAf2A
的信息,和一个结果集List: Cp`)*P2
java代码: &}_ $@
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@W[`^jfQ
/*Created on 2005-6-13*/ f]W$4f{
package com.adt.bo; |=fa`8mG
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import java.util.List; rJH u~/_Dq
V*5 ~A[r
import org.flyware.util.page.Page; 3B8\r}L
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/** Vr@I9W;D#
* @author Joa piIj
t
*/ VRQ'sn@
publicclass Result { :c[iS~ ~Y
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private Page page; _^]2??V
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private List content; [vh&o-6
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/** ZFpi'u.&
* The default constructor MKzIY:ug
*/ _Cn[|E
public Result(){ zO)A_s.6K
super(); mj:X'BVA
} @ px2/x
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/** Kq&b1x
* The constructor using fields 1(t{)Z<
* -i*{8t
* @param page [hC-} 9
* @param content =kFZ2/P2t(
*/ }TE4)vXs
public Result(Page page, List content){ 7vO3+lT/Y;
this.page = page; i
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this.content = content; uvC ![j^~
} TK^9!3
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/** !o +[L
* @return Returns the content. hDBVL"
*/ +PT/pybA
publicList getContent(){ J:WO%P=Q
return content; fGGGz$;N
} 0}v_usP
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/** (jhDO7
* @return Returns the page. j0P+< @y
*/ zv/owK
public Page getPage(){ Y,0D+sO4
return page; >F7v'-*{
} vU|=" #
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/** 4:m/w!q$
* @param content bDK%vx!_
* The content to set. 4'EC(NR7N
*/ fP 4
public void setContent(List content){ J;@g#h?
this.content = content; yvN;|R
} mtfEK3?2*
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/** @ px4[
* @param page V% -wZL/
* The page to set. hHXTSk2
*/ (.D|%P
publicvoid setPage(Page page){ BuwJR
Ql.
this.page = page; =6Z$nc
R
} #>)OLKP
} N-C=O
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2. 编写业务逻辑接口,并实现它(UserManager, nG Bjxhl
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UserManagerImpl) R8"qDj
java代码: gxa@da
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/*Created on 2005-7-15*/ ftr?@^
package com.adt.service; BBkYc:B=SA
o]gS=iLp
import net.sf.hibernate.HibernateException; +,wCV2>\3
[*i6?5}-
import org.flyware.util.page.Page; (>.+tq}
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import com.adt.bo.Result; pXL@&]U+
b Ag>;e(
/** j=>:{`*c
* @author Joa ;~nz%LJ
*/ svT1b'=\$I
publicinterface UserManager { `-,yJ
<OR f{
public Result listUser(Page page)throws O C qI
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HibernateException; iRwlK5(&
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} Aw~N"i
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\7l%@
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3d_PY,=1
java代码: k2axGq
dF
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Z#Q)a;RA
/*Created on 2005-7-15*/ xW hi>
package com.adt.service.impl; a
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import java.util.List; 0qdgt
Z{#;my*X|
import net.sf.hibernate.HibernateException; B%~D`[~?
\@%sX24 D
import org.flyware.util.page.Page; ~-dL #;
import org.flyware.util.page.PageUtil; jjbw+
u=mJI*
import com.adt.bo.Result; Z,x9 {
import com.adt.dao.UserDAO;
fa=OeuI
import com.adt.exception.ObjectNotFoundException; 3J{hG(5
import com.adt.service.UserManager; }3rWmo8V
%\uEV
/** aucQZD-_"
* @author Joa c"<bq}L7S
*/ N=?! ~n9Q-
publicclass UserManagerImpl implements UserManager { fBZ\,
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private UserDAO userDAO; BAUo`el5
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/** ;:0gN|+
* @param userDAO The userDAO to set. slV7,4S&!
*/ y%9Q]7&=
publicvoid setUserDAO(UserDAO userDAO){ .*0`}H+_
this.userDAO = userDAO; \K,piCVViN
} ZJ|@^^GcL
tOu:j [
/* (non-Javadoc) 0'{`"QD\IW
* @see com.adt.service.UserManager#listUser e.Y*=P}D
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(org.flyware.util.page.Page) T -'B-g
*/ RR8Z 9D;
public Result listUser(Page page)throws Nvef+L,v
4_A9o9&_Rh
HibernateException, ObjectNotFoundException { `6t3D&.u0
int totalRecords = userDAO.getUserCount(); 1|PmZPKq9n
if(totalRecords == 0) /nX+*L}d/
throw new ObjectNotFoundException |>Xw"]b;
TYs#v/)I
("userNotExist"); .x^`y2'U
page = PageUtil.createPage(page, totalRecords); E\%'/3o
List users = userDAO.getUserByPage(page); &dC #nw
returnnew Result(page, users); ilyQgEjC
} UpA{$@
jE&Onzc
} -6()$cl}0
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