有时要为每一篇文章统计其点击次数,如果每一次浏览都要更新一次库的话,那性能在访问量很大的情况下,服务器的压力就会很大了,比较好一点的方法就是先将要更新的数据缓存起来,然后每隔一段时间再利用数据库的批量处理,批量更新库。源码如下: \X'{ e e
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CountBean.java Vd8BQB,Q
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/* UUxDW3K
* CountData.java e[3rz%'Q
* .js@F/Hp
* Created on 2007年1月1日, 下午4:44 _;A?w8z
* b,?@_*qv+
* To change this template, choose Tools | Options and locate the template under ;st$TVzkn
* the Source Creation and Management node. Right-click the template and choose ` "Gd/
* Open. You can then make changes to the template in the Source Editor. )8H5ovj.
*/ Q(
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package com.tot.count; %N"9'g>
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/** [*-DtbEk
* qlT'gUt=H
* @author &ZjQa.-U>
*/ =R M=@X
public class CountBean { );LkEXC_'
private String countType; 6%mFiX
int countId; Pkr0|bs*
/** Creates a new instance of CountData */ k^|P8v+"D
public CountBean() {} 9(%ptnya
public void setCountType(String countTypes){ p^G:h6|+|
this.countType=countTypes; *wml
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} ")l_>y?
public void setCountId(int countIds){ ]jUxL=]r
this.countId=countIds; t83n` LC
} Az_s"}G
public String getCountType(){ /f!CX|U
return countType; {DPobyvwFk
} @"jV^2oY1
public int getCountId(){ WJG& `PP
return countId; EwSE;R -
} :y)'_p *l/
} Z/ "jLfP
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CountCache.java \Rc7$bS2H
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/* `>@n6>f
* CountCache.java _rQM[{Bkg
* l<7)uO^8
* Created on 2007年1月1日, 下午5:01 +jcg[|-'/
* _v2K1 1
* To change this template, choose Tools | Options and locate the template under *i[^-
* the Source Creation and Management node. Right-click the template and choose Z8??+d=
* Open. You can then make changes to the template in the Source Editor. mlgw0
*/ ?]S!-6:
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package com.tot.count; O!!Ne'I
import java.util.*; *g$egipfF
/** Vi~9[&.E\!
* em@\S
* @author j HT2|VGb*
*/ X@u-n_
public class CountCache { 9}`A_KzFx
public static LinkedList list=new LinkedList(); ~Co7 %e V
/** Creates a new instance of CountCache */ utq*<,^
public CountCache() {} b {e nD
public static void add(CountBean cb){ 'l$<DcBj
if(cb!=null){ F=C8U$'S
list.add(cb); Gc)
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} .7-Yu1{2
} W{\){fr6O
} ;mV,r,\dH
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CountControl.java CB5 ~!nKv&
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/* 0:^L>MO
* CountThread.java > m GO08X
* xN\PQ,J
* Created on 2007年1月1日, 下午4:57 iw|6w,-)C
* pQaP9Y{OK
* To change this template, choose Tools | Options and locate the template under i)V-q9\
* the Source Creation and Management node. Right-click the template and choose PgZ~of&
* Open. You can then make changes to the template in the Source Editor. v_*E:E
*/ p&=F:-
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package com.tot.count; hia_CuY#
import tot.db.DBUtils; Z7&Bn