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: ~Z-M?8:
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CountBean.java &1)4B
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/* ,>% 2`Z)
* CountData.java A*#.7Np!"
* 1sp>UBG
* Created on 2007年1月1日, 下午4:44 j}R!'m(P'
* <y#-I%ed
* To change this template, choose Tools | Options and locate the template under H0<(j(JK
* the Source Creation and Management node. Right-click the template and choose
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* Open. You can then make changes to the template in the Source Editor. Tbv", b
*/ >PdYQDyVS
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package com.tot.count; [@d$XC]Qz
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/** %
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* ~ED8]*H|`
* @author ;|_aACina
*/ 3aIP^I1
public class CountBean { vf6_oX<Os
private String countType; |hBX"
int countId; KW.*LoO
/** Creates a new instance of CountData */ (
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public CountBean() {} R~OameRR
public void setCountType(String countTypes){ q
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this.countType=countTypes; -4ityS
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} LVNq@,s
public void setCountId(int countIds){ j\l9|vpp
this.countId=countIds; IB9[Lx
} ~\_aT2j0
public String getCountType(){ cojtQD6
return countType; (T;4'c
} 9gP-//L@
public int getCountId(){ +>3XJlZV
return countId; |iN!V3#S
} hTgWqp
} :lj1[q:Y>
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CountCache.java A&EVzmj-+X
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/* DM
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* CountCache.java $:IOoS|e
* ~ [L4,q
* Created on 2007年1月1日, 下午5:01 l&3f<e
* NIZN}DnP
* To change this template, choose Tools | Options and locate the template under %Jy0?W N
* the Source Creation and Management node. Right-click the template and choose h^_Sd"l3
* Open. You can then make changes to the template in the Source Editor. ~2
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*/ `4^-@}
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package com.tot.count; k#mQLv
import java.util.*; 1>hY!nG h
/** X(sHFVU+
* Hy4c{Ij
* @author kA3nhBH
*/ 6*yt^[W
public class CountCache { Qtj.@CGB
public static LinkedList list=new LinkedList(); eeKErpj8A
/** Creates a new instance of CountCache */ zN}1Qh
public CountCache() {} Yq~$Q4
public static void add(CountBean cb){ ;',hwo_LBf
if(cb!=null){ 7{<:g!
list.add(cb); #E35%7*
} .m--#r
} !6y<