Hibernate3 提供了DetachedCriteria,使得我们可以在Web层构造 }j1Zk4}[x
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detachedCriteria,然后调用业务层Bean,进行动态条件查询,根 7]j-zv
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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 YoJ'=z,e
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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 m[j3s=Gr
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分页支持类: &>l8S lC?
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java代码: jPNfLwVkl:
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package com.javaeye.common.util; fNPj8\#V,
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import java.util.List; wWU_?Dr_~
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publicclass PaginationSupport { N-9gfG
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publicfinalstaticint PAGESIZE = 30; A'1AU:d
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privateint pageSize = PAGESIZE; \]A;EwC4C
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privateList items; J*!:ar
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privateint totalCount; bTGK@~
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privateint[] indexes = newint[0]; dJ:x1j
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privateint startIndex = 0; x,gE$dNzy
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public PaginationSupport(List items, int "q^'5p]
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totalCount){ V )k, 9=
setPageSize(PAGESIZE); y32++b!
setTotalCount(totalCount); N%A`rY}u
setItems(items); y!N)@y4
setStartIndex(0); aijGz<
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public PaginationSupport(List items, int G5#}Ed4
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totalCount, int startIndex){ Ygi1"X}
setPageSize(PAGESIZE); 4F,Ql"ae(
setTotalCount(totalCount); 4<<bk_7'
setItems(items); uQ]]]Z(H'
setStartIndex(startIndex); 36x:(-GFq
} Vnj/>e3
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public PaginationSupport(List items, int BDkBYhz;7
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totalCount, int pageSize, int startIndex){ ^Lmc%y
setPageSize(pageSize); C'czXZtn
setTotalCount(totalCount); p_qm}zp
setItems(items); :LiDJF
setStartIndex(startIndex); ]p&< nK,
} Jrd4a~XP
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publicList getItems(){ 8J3@VD.
return items; g~c|~u(W
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publicvoid setItems(List items){ Ogke*qM
this.items = items; Eu/y">;v#
} 72ViPWW
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publicint getPageSize(){ TDFO9%2c
return pageSize; V.Ba''E7
} ]vQ?]d?>a
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publicvoid setPageSize(int pageSize){ ).}k6v[4)
this.pageSize = pageSize; 4^[}]'w
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publicint getTotalCount(){ \q|7,S,5
return totalCount; (#B^Hyz!
} 6{ +_T
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publicvoid setTotalCount(int totalCount){ lIVxW+
if(totalCount > 0){ P"9@8aLB
this.totalCount = totalCount; vDW&pF_eI>
int count = totalCount / 4l
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pageSize; )'!ml
if(totalCount % pageSize > 0) kV\-%:-
count++; G?1x+H;o5
indexes = newint[count]; 9R@abm,I
for(int i = 0; i < count; i++){ )y`TymM[F
indexes = pageSize * &cu] vw
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} >{ECyh;
}else{ &7($kj
this.totalCount = 0; r2SJp@f
} uGa(_ut
} 'l'
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publicint[] getIndexes(){ VZ2.w4b
return indexes; Bzu(XQ
} 3|~(?4aE
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publicvoid setIndexes(int[] indexes){ ?..i 4
this.indexes = indexes; ]PlY}VOY
} K=tx5{V
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publicint getStartIndex(){ 18.Y/nZAgQ
return startIndex; f^!11/Wv
} W1?!iE~tO
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publicvoid setStartIndex(int startIndex){ |I}A>XG
if(totalCount <= 0) Kd/[Bs%
this.startIndex = 0; Ehb?CnV#J
elseif(startIndex >= totalCount) T/wM(pr'
this.startIndex = indexes Mu'^OX82
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[indexes.length - 1]; P?q
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elseif(startIndex < 0) V;iL[
this.startIndex = 0; JlC<MQ?
else{ J[}gku?C;
this.startIndex = indexes &;ZC<