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: (.PmDBW
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CountBean.java a|UqeNI{
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/* - dl}_
* CountData.java 0[lS(K
* D2Y&[zgv
* Created on 2007年1月1日, 下午4:44 F
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* ab{;Z5O
* To change this template, choose Tools | Options and locate the template under !{IC[g n
* the Source Creation and Management node. Right-click the template and choose jUYF.K&
* Open. You can then make changes to the template in the Source Editor. ]yo_wGiwY
*/ F\JLbY{x]
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package com.tot.count; l x7Kw%
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/** 3KtAK9PT
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* @author 77``8,
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public class CountBean { YQ52~M0L
private String countType; ^ b@!dS
int countId; ?F1wh2oq
/** Creates a new instance of CountData */ Pfm*<,'x"[
public CountBean() {} )eECOfmnZ
public void setCountType(String countTypes){ 0X.TF
this.countType=countTypes; B-$+UE>%
} XHy?
public void setCountId(int countIds){ }bp.OV-+
this.countId=countIds; 3a%xn4P
} `%uK0qw"
public String getCountType(){ S:#e8H_7m]
return countType; (JWv *p
} Q2q|*EL
public int getCountId(){ D{>\-]\
return countId; N50fL
} 3#9uEDdE
} RXM}hqeG
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CountCache.java A$Wx#r7)
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/* 1ADv?+j)A/
* CountCache.java ^L ]B5,}-
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* Created on 2007年1月1日, 下午5:01 A9t8`|1"%H
* M</Wd{.g"
* To change this template, choose Tools | Options and locate the template under p/N 62G
* the Source Creation and Management node. Right-click the template and choose x =h0Fq,T
* Open. You can then make changes to the template in the Source Editor. 4 HW;
*/ o'96ON0
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package com.tot.count; a/34WFC
import java.util.*; 5.dl>,
/** KhrFg1|
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* @author b )Tl*
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public class CountCache { |e:rYLxm:
public static LinkedList list=new LinkedList(); +|9f%f6vp
/** Creates a new instance of CountCache */ AO $Wy@
public CountCache() {} y[7C% Wj
public static void add(CountBean cb){ /,X7.t_-
if(cb!=null){ OMvT;Vgg
list.add(cb); } #qQ2NCH
} .wD>Gs{sH[
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CountControl.java &5d\~{;
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/* {gw[%[ZM
* CountThread.java pD[pTMG@$
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* Created on 2007年1月1日, 下午4:57 -8/ JP
* 3
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* To change this template, choose Tools | Options and locate the template under
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* the Source Creation and Management node. Right-click the template and choose /eb-'m
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*/ pu#[pa
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package com.tot.count; nn'Af,ko/
import tot.db.DBUtils; :kt/$S^-
import java.sql.*; $C$ub&D
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/** 12 -EDg/1
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