Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 ^{W#ut>IN
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 ymsqJ
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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 69v[*InSd
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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 E+&]96*Lby
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。 d[9NNm*htC
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分页支持类: /e5Fx
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java代码: a'v%bL;H~
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package com.javaeye.common.util; Z0~}'K
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import java.util.List; y{eZrX|
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publicclass PaginationSupport { +"]'h~W
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publicfinalstaticint PAGESIZE = 30; iK"j@1|
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privateint pageSize = PAGESIZE; a`w)awb
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privateList items; >Q~"/-bN)
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privateint totalCount; 8<g_JW[%
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privateint[] indexes = newint[0]; hfvs'.
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privateint startIndex = 0; b* 6c.
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public PaginationSupport(List items, int uREc9z`Q'
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totalCount){ Ej1 [ry
setPageSize(PAGESIZE); VmTk4?V4
setTotalCount(totalCount); |jV4]7Luq
setItems(items); dBG]J18
setStartIndex(0); 'Ph4(Yg
} K@{jY\AZNx
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public PaginationSupport(List items, int @T1>%oi
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totalCount, int startIndex){ U6=m4]~Z
setPageSize(PAGESIZE); )_EobE\
setTotalCount(totalCount); Ze$:-7Czl
setItems(items); 7l Aa6"Y68
setStartIndex(startIndex); P|.KMtG
} 2597#O
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public PaginationSupport(List items, int r/Pg,si
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totalCount, int pageSize, int startIndex){ 7$GP#V1r/
setPageSize(pageSize); @fpxGMy&
setTotalCount(totalCount); "`:#sF9S
setItems(items); LM _4.J
setStartIndex(startIndex); &V( LeSI
} Pr<?E[
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publicList getItems(){ {uj9fE,)
return items; g{$&j*Q9
} (oJ#`k:&n
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publicvoid setItems(List items){ rMlbj2T
this.items = items; ]-.Q9cjc$q
} %
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@V :b Co
publicint getPageSize(){ 7*XG]=z/
return pageSize; 3F}d,aB
A
} F{T|lTl
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publicvoid setPageSize(int pageSize){ *8XGo
this.pageSize = pageSize; Y,mH ]
} _k+Bj.L
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publicint getTotalCount(){ !#iP)"O
return totalCount; f\(K ou$
} db%`-UST
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publicvoid setTotalCount(int totalCount){ >Ft jrEB
if(totalCount > 0){ ;U`HvIch
this.totalCount = totalCount; 0XozYyq
int count = totalCount / V,M8RYOnC!
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pageSize; Ar'5kPzY>
if(totalCount % pageSize > 0) GV[[[fu
count++; rbtPG=t_R
indexes = newint[count]; WJ9u3+
for(int i = 0; i < count; i++){ hrAI@.Bo
indexes = pageSize * Ra*9d]N@
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i; "J{,P9P6
} 5d4-95['_
}else{ Tf0#+6 1>
this.totalCount = 0; HRw,D=
} $9J"r9@@
} Y0hL_46>
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publicint[] getIndexes(){ .HtDcGp
return indexes; 2C8M1^0:Z
} $K
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publicvoid setIndexes(int[] indexes){ v^E5'M[A
this.indexes = indexes; oL6_Ya
} 3> fuH'=
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publicint getStartIndex(){ Aio0++r-
return startIndex; "iydXV=Q
} vMI \$E&
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publicvoid setStartIndex(int startIndex){ 3?}SXmA'@
if(totalCount <= 0) |F=^Cu,
this.startIndex = 0; O>>8%=5Q
elseif(startIndex >= totalCount) yi%B5KF~Al
this.startIndex = indexes 7xd}J(l
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[indexes.length - 1]; 9%dNktt
elseif(startIndex < 0) Z2 @&4_P
this.startIndex = 0; QDDSJ>l5_T
else{ kB:R-St
this.startIndex = indexes eeX>SL5'i
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[startIndex / pageSize]; 2Vi[qS^
} Z3/ zUtgs
} HYY|)Wo
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publicint getNextIndex(){ [lJ[kr*7
int nextIndex = getStartIndex() + z DK+8
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pageSize; +*!!
if(nextIndex >= totalCount) RcE%?2lD
return getStartIndex(); ]zm6;/S
else 2-CK:)n/#
return nextIndex; 2]'ozs$|v
} w])Sz*J
&S{F"z
publicint getPreviousIndex(){ oc?VAF
int previousIndex = getStartIndex() - &KB{,:)?
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pageSize; c*W$wr
if(previousIndex < 0) 5u8Sxfm",
return0; }qg!Um0
else Tld{b
return previousIndex; > w'6ZDA*X
} n#R!`*[
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} St3~Y{aI|
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(+@.L7>m+t
抽象业务类 )Qc$UI8L
java代码: #-`lLI:w0
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/** c2U>89LlZ
* Created on 2005-7-12 83n: h08
*/ i>~?XVU
package com.javaeye.common.business; D'&LwU,o
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import java.io.Serializable; t Z%?vY~!
import java.util.List; 4>W`XH
/IC'R"V a
import org.hibernate.Criteria; g,;MV7yE
import org.hibernate.HibernateException; 7MfT~v
import org.hibernate.Session; q}!4b'z^
import org.hibernate.criterion.DetachedCriteria; c' 6H@m#=
import org.hibernate.criterion.Projections; x<l1s
import }B5I#Af7
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org.springframework.orm.hibernate3.HibernateCallback; 2Ar<(v$
import zaZnL7ZJX
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org.springframework.orm.hibernate3.support.HibernateDaoS 40<&0nn
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upport; 8%4`Yj=
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import com.javaeye.common.util.PaginationSupport; %L/=heBBd
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public abstract class AbstractManager extends q2Kn3{
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HibernateDaoSupport { piP8ObGjy
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privateboolean cacheQueries = false; |}`5<a!6U
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privateString queryCacheRegion; =T-w.}27O
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publicvoid setCacheQueries(boolean JvDsr0]\#
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cacheQueries){ _(hwU>.
this.cacheQueries = cacheQueries; gY9"!IVe+
} l;.BlHyu
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publicvoid setQueryCacheRegion(String (Y>MsqwWfC
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queryCacheRegion){ (yP55PC
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this.queryCacheRegion = 3\{Sf /#
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queryCacheRegion; kslN_\
} ;i9CQ0e?
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publicvoid save(finalObject entity){ $c}0L0
getHibernateTemplate().save(entity); }$-VI\96
} MjpJAV/84
pd#/;LT
publicvoid persist(finalObject entity){ b5DrwX{Ff
getHibernateTemplate().save(entity); L,6Y=?
} v\ Ljm,+
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publicvoid update(finalObject entity){ FT~^$)8=
getHibernateTemplate().update(entity); 4i,SiFKB
} Bu1z$#AC
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publicvoid delete(finalObject entity){ c
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getHibernateTemplate().delete(entity); *3$,f>W^
} HhvG#Sam!
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publicObject load(finalClass entity, X2cR+Ha0
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finalSerializable id){ h6*`V
return getHibernateTemplate().load U3}R^W~eb
_
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(entity, id); ]D%k)<YK
} N-gRfra+8L
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publicObject get(finalClass entity, [fp"MPP3
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finalSerializable id){ LzRiiP^q
return getHibernateTemplate().get O@iW?9C+
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(entity, id); E0Q"qEvU
} {ZXC%(u
PoJ$%_a}
publicList findAll(finalClass entity){ $hSZ@w|IF
return getHibernateTemplate().find("from :2E1aVo4b
j&A3s{S4A
" + entity.getName()); opMUt,4
} 2~V Im#
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publicList findByNamedQuery(finalString Yys~p2
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namedQuery){ pGY]VwY
return getHibernateTemplate 7X(]r1-+\
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().findByNamedQuery(namedQuery); U*Qq5=dqD
} 'c&@~O;^d
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publicList findByNamedQuery(finalString query, /\rq$W_
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finalObject parameter){ ,SF.@^o@a
return getHibernateTemplate jJZsBOW[8
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().findByNamedQuery(query, parameter); s &hA
} S |>$0P4W(
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publicList findByNamedQuery(finalString query, V:BX"$J1
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finalObject[] parameters){ \oX8/-0 f
return getHibernateTemplate R: <@+z^A[
_-]!;0EIV
().findByNamedQuery(query, parameters); *W12Rb2
} p &>A5
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publicList find(finalString query){ hF"g91P
return getHibernateTemplate().find QO{=Wi-
!y-2#
(query); 4;RCPC
} mSzpRa
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publicList find(finalString query, finalObject 45sxF?GSwL
}m%?&c
parameter){ `QdQ?9x{F
return getHibernateTemplate().find rAWl0y_m
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(query, parameter); S tnv>
} UVc<C
1q
^}Qj}
public PaginationSupport findPageByCriteria 4iNbK~5j
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(final DetachedCriteria detachedCriteria){ hNnX-^J<o
return findPageByCriteria `E5"Pmg
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(detachedCriteria, PaginationSupport.PAGESIZE, 0); `%M-7n9Y
} W Gw!Y1wq
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public PaginationSupport findPageByCriteria =HY1l}\
@f{_=~+
(final DetachedCriteria detachedCriteria, finalint 8ts+'65|F
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startIndex){ \c~{o+UD-
return findPageByCriteria knOnUU
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ot
(detachedCriteria, PaginationSupport.PAGESIZE, 030U7 VT1
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startIndex); EeJqszmH
} j;20JA/b
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public PaginationSupport findPageByCriteria Ae j
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(final DetachedCriteria detachedCriteria, finalint Bw<zc=%
x} &a{;
pageSize, ]hE+$sKd
finalint startIndex){ .S!>9X,
return(PaginationSupport) 7q!yCU
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getHibernateTemplate().execute(new HibernateCallback(){ Mf:M3H%YV+
publicObject doInHibernate BKQIo)g.G
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(Session session)throws HibernateException { 'DzBp
Criteria criteria = 8.CKH4h
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detachedCriteria.getExecutableCriteria(session); 8b 8\
int totalCount = 0^9:KZ.!
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((Integer) criteria.setProjection(Projections.rowCount E-sSRt
:,NFFN
()).uniqueResult()).intValue(); e" Eqi-
criteria.setProjection qsihQd
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(null); TTZ['HP
oI
List items = 1a&/Zlr
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criteria.setFirstResult(startIndex).setMaxResults M_h8#7 {G
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(pageSize).list(); VJN/#
PaginationSupport ps = O:;OR'N9
-4e)N*VVu
new PaginationSupport(items, totalCount, pageSize, g={]Mzh
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startIndex); *O+R|Cdp/
return ps; >;
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} PNbcy!\U
}, true); }A1|jY)x
} *#lBQBH|.
@%OPy|=,{
public List findAllByCriteria(final mA(nyF
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DetachedCriteria detachedCriteria){ "Su
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return(List) getHibernateTemplate 4<T*i{[
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().execute(new HibernateCallback(){ "H>r-cyh
publicObject doInHibernate jq57C}X}2
q Vm"f,ruo
(Session session)throws HibernateException { 4D^ M<Xn
Criteria criteria = =`qRu
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detachedCriteria.getExecutableCriteria(session); -uA 3Y
return criteria.list(); Z}8k[*.
} <.,RBo
}, true); ?}'N_n ys
} J?UA:u
*A?8F"6>
public int getCountByCriteria(final 5LQk8NPh
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DetachedCriteria detachedCriteria){ WI1T?.Gc
Integer count = (Integer) (9mbF%b
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getHibernateTemplate().execute(new HibernateCallback(){ :`0'GM" `
publicObject doInHibernate l`@0zw+
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(Session session)throws HibernateException { 3ty4D 2y
Criteria criteria = {Q5KV%F_
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detachedCriteria.getExecutableCriteria(session); ;asm 0H(
return Mv.Ciyc
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criteria.setProjection(Projections.rowCount I@n*[EC
>=if8t!
()).uniqueResult(); 2E^"r jLm
} )]%e
}, true); 9wL!D3e
{Q
return count.intValue(); q*\NRq
} :KEq<fEI
} SQ}S4r
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用户在web层构造查询条件detachedCriteria,和可选的 Y[W6Sc
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startIndex,调用业务bean的相应findByCriteria方法,返回一个 ;\N79)Gk
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PaginationSupport的实例ps。 jm+ V$YBP
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ps.getItems()得到已分页好的结果集 k+FMZ,D|
ps.getIndexes()得到分页索引的数组 Le*`r2
ps.getTotalCount()得到总结果数 0|g[o:;fl_
ps.getStartIndex()当前分页索引 WtIMvk
ps.getNextIndex()下一页索引 >Q;
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ps.getPreviousIndex()上一页索引 O?CdAnhQc`
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连续看了两篇robbin有关DetachedCriteria的介绍,感觉真的不错 lbRzx4=\y
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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 @B?FE\
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一下代码重构了。 $; ?c?n+
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我把原本我的做法也提供出来供大家讨论吧: wb
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首先,为了实现分页查询,我封装了一个Page类: 7%e1cI
java代码: nE_Cuc>K\
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/*Created on 2005-4-14*/ Tr~sieL
package org.flyware.util.page; 69>/@<
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/** :$Q`>k7A
* @author Joa GQb i$kl
* eH
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*/ GWhE8EDT
publicclass Page { ?=<~^Lk
JnY$fs*"
/** imply if the page has previous page */ FQ`(b3.
privateboolean hasPrePage; i0>]CJG
!$_~x
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/** imply if the page has next page */ ?\ZL#)hr"p
privateboolean hasNextPage; yNBv-oe5
<:">mV+/
/** the number of every page */ k0JW[04j
privateint everyPage; S<"oUdkz
@OzMiN
/** the total page number */ Hfh!l2P
privateint totalPage; [
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>%u@R3PH]
/** the number of current page */ AotCX7T2T
privateint currentPage; #.H}r6jqs
++b$E&lYU
/** the begin index of the records by the current {=67XrWN1
8f|98T"
query */ onwjn+"&
privateint beginIndex; l-<`m#/v
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/** The default constructor */ TN\|fzj
public Page(){ R:M,tL-l
V,Q4n%h1.
} 6kN:*
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/** construct the page by everyPage 49AW6H.JT
* @param everyPage ^XG*z?Tt
* */ `<U5z$^QTw
public Page(int everyPage){ ?F_)-
this.everyPage = everyPage; H]&gW/=
} 7VAJJv3
b5<okICD
/** The whole constructor */ 22&;jpL'?
public Page(boolean hasPrePage, boolean hasNextPage, lj4o#^lC
.1#kDM
l(!/Q|Q|
int everyPage, int totalPage, E"6X|I n
int currentPage, int beginIndex){ :Wc_Utt
this.hasPrePage = hasPrePage; Qs%B'9")
this.hasNextPage = hasNextPage; B2Z_]q$n*
this.everyPage = everyPage; rOcg+5
this.totalPage = totalPage; Y]Vq\]m\
this.currentPage = currentPage; BRzfic:e
this.beginIndex = beginIndex; 0J9D"3T)
} \vRd}
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/** $=)gpPT
* @return #$E)b:xj
* Returns the beginIndex. jo9gCP.
*/ lyv4fP
publicint getBeginIndex(){ >P=Q #;v
return beginIndex; rzUlO5?R=
} aJzLrX
cE\>f8 I
/** !Ms[eB
* @param beginIndex yCP4r6X0
* The beginIndex to set. /TV=$gB`
*/ Dvc&RG
publicvoid setBeginIndex(int beginIndex){ D d,2;#_
this.beginIndex = beginIndex; 5)UQWnd5
} ;wHCj$q
l1'6cLT`
/** 3I $>uR
* @return 9t$]X>}
* Returns the currentPage. %%JMb=!%2
*/ R#W&ery
publicint getCurrentPage(){ ~Lz%.a;o
return currentPage; /?*]lH.
} $n!K6fkX%
=a}b+(R
/** "N5!mpD"
* @param currentPage [0y$! f4
* The currentPage to set. E\U`2{^.
*/ 2oCkG~j
publicvoid setCurrentPage(int currentPage){ _zMgoc7
this.currentPage = currentPage; =Vw
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} 69G`2_eKCp
oD.r`]k
/** `$TRleSi
* @return )Xtnk
* Returns the everyPage. -7{$Vj
*/ UbamB+QT
publicint getEveryPage(){ u0Nm.--;_3
return everyPage; 5Qh?>n>*
} }`\/f
eOI (6U!
/** CAD@XZSh
* @param everyPage SF[FmN!^^
* The everyPage to set. p B;3bc
*/ OI}cs2m
publicvoid setEveryPage(int everyPage){ &(N+.T5cp
this.everyPage = everyPage; .@ F]Pht
} <RNJ>>0
T~:|!`
/** =]C]=
* @return O"G >wv
* Returns the hasNextPage. bm% $86
*/ /JkC+7H4
publicboolean getHasNextPage(){ %9oYw9H!
return hasNextPage; O1'm@
q)
} RQB
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/** JW.=T)
* @param hasNextPage 9f+>ix,ek*
* The hasNextPage to set. C3NdE_E
*/ \ZU1Jb1c
publicvoid setHasNextPage(boolean hasNextPage){ }Gyqq6Aeb
this.hasNextPage = hasNextPage; VVP:w%yW
} h vka{LD
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/** `n5"0QRd
* @return @&|l^ 1
* Returns the hasPrePage. ~@.%m"<.
*/ 3&&9_`r&_
publicboolean getHasPrePage(){ d;mx<i=/
return hasPrePage; A][fLlpr
} ?';OD3-
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/** ?L&|Uw+
* @param hasPrePage $-}e; V Zb
* The hasPrePage to set. *^%Q0mU[
*/ \;u@ "
publicvoid setHasPrePage(boolean hasPrePage){ qt%D'
this.hasPrePage = hasPrePage; b` Hz$8
} O3DmNq$dz
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/** \^7C0R-hX
* @return Returns the totalPage. OyV<u@[i
* L@`ouQ"sa
*/ ~w8JH2O
publicint getTotalPage(){ sm[94,26
return totalPage; ';Zi@f"
} ~vlype3/EF
|w aIpB(
/** K*UgX(xu4P
* @param totalPage W"^wnGa@a
* The totalPage to set. a<}#HfC;'
*/ ]0hrRA`
publicvoid setTotalPage(int totalPage){ Mj[f~
this.totalPage = totalPage; JRCrZW}
} <S?ddp2
< -W*$?^
} MUfG?r\t
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`\Hf]b
A+hT3;lp
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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 0cK{
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个PageUtil,负责对Page对象进行构造: m3Il3ZY.
java代码: @2'Mt}R>
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/*Created on 2005-4-14*/ 3bnS
W5
package org.flyware.util.page; jReXyRmo({
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[>h
import org.apache.commons.logging.Log; 34\(7JO
import org.apache.commons.logging.LogFactory; p-.n3AL
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/** a5a($D
* @author Joa Reatdh
* 9]q:[zm^
*/ &gzCteS
publicclass PageUtil { e[hcJz!D
`{qG1
privatestaticfinal Log logger = LogFactory.getLog [JF150zr
g=I8@m
(PageUtil.class); E@7J:|.)R
,#pXpAz/
/** Um&(&?Xf
* Use the origin page to create a new page J9~g|5
* @param page {e|[%reSkg
* @param totalRecords Z+@2"%W
* @return E Cyyl
*/ \hCH>*x<
publicstatic Page createPage(Page page, int {%_L=2n6
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totalRecords){ j~*L~7
return createPage(page.getEveryPage(), W.kM7z>G
6{txm+U
page.getCurrentPage(), totalRecords); _a1x\,R|DB
} )"pF R4
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/** S~|T4q(
* the basic page utils not including exception @')[FEdW
iX)%Q
handler cTG|fdgMW
* @param everyPage G37U6PuZi
* @param currentPage |P%Jw,}]9
* @param totalRecords }sxYxn~
* @return page thhwN
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*/ Dc,I7F|%
publicstatic Page createPage(int everyPage, int ~ 0M'7q'
P-9<YN
currentPage, int totalRecords){ E~6c -Lw
everyPage = getEveryPage(everyPage); vh$%9ed
currentPage = getCurrentPage(currentPage); %f]:I
int beginIndex = getBeginIndex(everyPage, <_7*67{
P'_H/r/#
currentPage); rW=Z>1
int totalPage = getTotalPage(everyPage, AJ=qn a
?"g!
totalRecords); @ta7"6p-i@
boolean hasNextPage = hasNextPage(currentPage, 13>0OKg`#
UeRj< \"Q
totalPage); D|{jR~J)xK
boolean hasPrePage = hasPrePage(currentPage); HPZ}*m'
J@u;H$@/y
returnnew Page(hasPrePage, hasNextPage, %\:[ o
everyPage, totalPage, V;v8=1t!
currentPage, ml+; Rmvb
%
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beginIndex); a24"yT
} o7$'cn
\ZkA>oO".
privatestaticint getEveryPage(int everyPage){ ;XBI{CW
return everyPage == 0 ? 10 : everyPage; ]iUxp+
} h5^Z2:#
5rU[Tir
privatestaticint getCurrentPage(int currentPage){ OOo3G~2r
return currentPage == 0 ? 1 : currentPage; k=jk`c{<[
} r8xv#r 1
Y/*mUS[oa
privatestaticint getBeginIndex(int everyPage, int $69oV:
=o$sxb
E(
currentPage){ y]f"@9G#
return(currentPage - 1) * everyPage; 2I,^YWR
} 9J2NH|]c
W>j !Q^?
privatestaticint getTotalPage(int everyPage, int B&n<M]7
]jo1{IcI
totalRecords){ 0E3[N:s
int totalPage = 0; 0"pAN[=K@
!]=d-RGNe
if(totalRecords % everyPage == 0) sG92XJ
totalPage = totalRecords / everyPage; 6;ixa
hZV
else TOB]IrW
totalPage = totalRecords / everyPage + 1 ; {A05u3}
'ZDp5pCC;
return totalPage; oY933i@l)P
} v]B3m
G?Q3/y(
privatestaticboolean hasPrePage(int currentPage){ N/MUwx;P
return currentPage == 1 ? false : true; 8; 0A
g
} e?8HgiP-
'/^qJ7eb
privatestaticboolean hasNextPage(int currentPage, 7+\+DujE$
=4FXBPoQK
int totalPage){ ;wz^gdh;
return currentPage == totalPage || totalPage == 2#c<\s|C
ww],y@da
0 ? false : true; R}*_~7r5
} 8Djc
c
z
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3$
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} 0Ziw_S\d&s
P\1L7%*lU
nU7>uU
v>Q#B
i3@)W4{
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。 ~a ]+#D
x|pg"v&[
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 _( {hc+9p
{xXsBh
Y
做法如下: >n'o*gZM
1. 编写一个通用的结果存储类Result,这个类包含一个Page对象 1H6<[iHW
"@iK'
c^
的信息,和一个结果集List: :bwjJ}F
java代码: y1dDO2mA
n*[XR`r}
wn/_}]T
/*Created on 2005-6-13*/ L ~lxXTG\
package com.adt.bo; >\KNM@'KI
u{['<r;I
import java.util.List; RI(DXWM|h
F8jd'OR
import org.flyware.util.page.Page; ywGd> @
5z7U1:
/** gOSJM1Mr3
* @author Joa ME46V6[LX]
*/ QdF5Cwf4
publicclass Result { Q(wx nm
a&/#X9/
private Page page; TaKLzd2
PgtJ3oq[}
private List content; 6dabU*
J8uLJ
/** v+46QK|I&
* The default constructor /:~\5}tW
*/ 6e9,PS
public Result(){ ,)Me
super(); MQ5R O;RY
} T@2#6Tffo
#`CA8!j!!
/** Z}mLLf E
* The constructor using fields 7puFz4+f
* ObVGV
* @param page CZud&
<
* @param content \2N!:%k
*/ Ql/cN%^j$
public Result(Page page, List content){ v$7QIl_/7
this.page = page; Mm.<r-b
this.content = content; _aGOb;h
} WA)yfo0A
l? Udn0F
/** vK|E>nL
* @return Returns the content. eKE#Yr
d=x
*/ $WyD^|~SF
publicList getContent(){ Qu?R8+"KS
return content; %7zuQ \w
} _}lZ,L(w
qE&v ;
/** ]
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* @return Returns the page. BLfTsNzmt
*/ *scVJ
public Page getPage(){ JD)(oK%C
return page; <*16(!k0
} tItX y
[I'0,y
/** }zkHJxZgE
* @param content _<k\FU
r
* The content to set. dgR
g>)V
*/ {MtpkUN
public void setContent(List content){ 1C}NQ!.
this.content = content; mHV%I@`Y6
} CtyoHvw+M
ciBP7>'::
/** h`KFL/fT
* @param page hn5h\M?
* The page to set. G`SUxhC k
*/ K0-ypU*P
publicvoid setPage(Page page){ HePUWL'
this.page = page; >80;8\
} HW3 }uP\c
}
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hL/)|N~
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m+`fn;*
w~(1%p/
2. 编写业务逻辑接口,并实现它(UserManager, .L9j>iP9 *
mg^I=kpk
UserManagerImpl) D^yRaP*|7
java代码: =5J7Hw&K
e<3K;Q
aC$B2
/*Created on 2005-7-15*/ R<\F:9
package com.adt.service; RN$1bxY
/1"(cQ%?
import net.sf.hibernate.HibernateException; {G U&a
.>=(' -
import org.flyware.util.page.Page; 3LAIl913
o<|cA5f\
import com.adt.bo.Result; I8wXuIN_
{@eJtF+2
/** 1C<uz29
* @author Joa >p)MawT]
*/ l1T m`7}
publicinterface UserManager { g[1gF&
F~T]u2qt
public Result listUser(Page page)throws }Mst jm
S{]x
HibernateException; SX<` {x&L
iP
=V8g?L
} d74d/l1*{
2)G
%)'
]JCvyz
H
AP68V
x.7]/)
java代码: ~Mx!^
:}5j##N
6N!Q:x^4(T
/*Created on 2005-7-15*/ 't1ax^-g
package com.adt.service.impl; W#^2#sjO
0t Fkd
import java.util.List; dCE0$3'5
;T"zV{;7BR
import net.sf.hibernate.HibernateException; HBy[FYa4
1,6}_MA
import org.flyware.util.page.Page; @Ws*Q TlV
import org.flyware.util.page.PageUtil; n,jKmA
i*|\KM?P
import com.adt.bo.Result; Z'4./
import com.adt.dao.UserDAO; Wi*.TWz3
import com.adt.exception.ObjectNotFoundException; Gr7=:+0n|P
import com.adt.service.UserManager; e5* ni/P
g
l^<Q
/** gW^VVbB'L
* @author Joa Yk)."r&