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: )v+&l9D
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CountBean.java ,K6ODtw.
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/* g(s}R ?
* CountData.java {Fyw<0 [@
* s2QgR37s>
* Created on 2007年1月1日, 下午4:44 \8a014
* ak3WER|f#
* To change this template, choose Tools | Options and locate the template under o](ORS$~
* the Source Creation and Management node. Right-click the template and choose s5{H15
* Open. You can then make changes to the template in the Source Editor. y,Bj,zw
*/ 9"1=um=
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package com.tot.count; ,g?M[(wtc
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/** d/*EuJYin<
* {[NQD3=+F
* @author 1y U!rEH
*/ s/E9$*0
public class CountBean { c<cYX;O
private String countType; U:MZN[Cc[
int countId; TQ/#
/** Creates a new instance of CountData */ 23p.g5hJi
public CountBean() {} 5HL>2
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public void setCountType(String countTypes){ a04S&ezj
this.countType=countTypes; jamai8
} }l]r-
public void setCountId(int countIds){ HP 3%CB
this.countId=countIds; E6G;fPd= E
} ]>sMu]biH
public String getCountType(){ .g}Y!
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return countType; Y%]g,mG
} 6~s{HI!
public int getCountId(){ e*Nm[*@UW
return countId; MfLus40;n
} ^( C,LVP<
} EOqV5$+
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CountCache.java M5`m5qc3
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/* *x2u
* CountCache.java 3+U2oI:I
* }gX4dv
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* Created on 2007年1月1日, 下午5:01 Z,XivU&
* FEa%wS{
* To change this template, choose Tools | Options and locate the template under #^i+'Z=L
* the Source Creation and Management node. Right-click the template and choose cx)x="c
* Open. You can then make changes to the template in the Source Editor. +'` ^ N
*/ {=R
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package com.tot.count; 'e
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import java.util.*; T[0CD'|E
/** l$!NEOK
* =<=[E:B
* @author )In;nc
*/ G
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public class CountCache { ?f:\&+.&
public static LinkedList list=new LinkedList(); j=>WWlZ
/** Creates a new instance of CountCache */ dwzk+@]8
public CountCache() {} V+*1?5w
public static void add(CountBean cb){ 6ESS>I"su
if(cb!=null){ )OGO
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list.add(cb); &j{IG`Trl
} 'xM\txZ;
} f%YD+Dt_V
} 1&kf