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: N 3O!8A_
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CountBean.java I<,~>'cq.
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/* &/2+'wCp5
* CountData.java Y~Vc|zM^(
* |pbetA4&
* Created on 2007年1月1日, 下午4:44 _(~LXk^C
* Y2tBFeWY
* To change this template, choose Tools | Options and locate the template under !4gHv4v;
* the Source Creation and Management node. Right-click the template and choose ^c/3!"wK
* Open. You can then make changes to the template in the Source Editor. <gGO
*/ b<#zgf
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package com.tot.count; BNA1"@9q
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/** t^>P,%$
* V2AsZc0U(
* @author rZ5xQ#IA
*/ \,n
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public class CountBean { ;I80<SZ
private String countType; J>G'H)
int countId; :f%kkatO
/** Creates a new instance of CountData */ 2~7*jA+Ab
public CountBean() {} @$L|
public void setCountType(String countTypes){ yi Xb<g+B
this.countType=countTypes; aIQC[ry
} ^c9_ F9N
public void setCountId(int countIds){ nT2b"wkTT
this.countId=countIds; #`U?,>2q
} \CE+P5
public String getCountType(){ s]`6uyW"
return countType; 2M\7j
} #`=>Mza
public int getCountId(){ 6/Yo0D>M$
return countId; \ZhkOl
} JY"J}
} /.rj\,
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CountCache.java }.U(Gxu$
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/* c+7I
* CountCache.java 7J`v#
* ;;rx)|\<R
* Created on 2007年1月1日, 下午5:01 ^&y*=6C
* bivo7_
* To change this template, choose Tools | Options and locate the template under GUM-|[~
* the Source Creation and Management node. Right-click the template and choose J#4pA{01w
* Open. You can then make changes to the template in the Source Editor. \I/"W#\SJo
*/ 1M?x,N_W
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package com.tot.count; {iq^CHAVK
import java.util.*; 1:M'|uc
/** pFiE2V_aS
* bF*Kb"!CF
* @author (E 8jkc
*/ :RZ'_5P[If
public class CountCache { $sb@*K}:4
public static LinkedList list=new LinkedList(); H8B.c%_|U
/** Creates a new instance of CountCache */ 9-&@Y
public CountCache() {} .YH#+T'
public static void add(CountBean cb){ {|j-e{*
if(cb!=null){ w)qmq
list.add(cb); 38l:Y"
} xiQc\k$
} "?<`]WG\
} xO%yjG=
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CountControl.java ,1!Y!,xy
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/* !B{(EL=g
* CountThread.java
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* k\/es1jOEh
* Created on 2007年1月1日, 下午4:57 KyDd( 'i
* ){u#
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* To change this template, choose Tools | Options and locate the template under j5[>HL
* the Source Creation and Management node. Right-click the template and choose 1|G5 W:
* Open. You can then make changes to the template in the Source Editor. #Q_<eo%lI*
*/ X MF? y
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package com.tot.count; ]d%Ou]609
import tot.db.DBUtils; $ntC{a>&
import java.sql.*; XgKYL<