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: D,}'E0
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CountBean.java / K_e;(Y_
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/* 48 c
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* CountData.java H y.3ccZ0
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* Created on 2007年1月1日, 下午4:44 5UrXVdP
* 5 `{|[J_[
* To change this template, choose Tools | Options and locate the template under an$]IN
* the Source Creation and Management node. Right-click the template and choose G*vpf~q?
* Open. You can then make changes to the template in the Source Editor. p:[`%<j0
*/ ?BHWzo!
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package com.tot.count; j,|1y5f
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/** |"Xi%CQ2
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* @author .WL\:{G8;
*/ =BqaGXr
public class CountBean { 5I8FD".i
private String countType; [x$eF~Kp
int countId; -CU7u=*b
/** Creates a new instance of CountData */ A]tf>H#1
public CountBean() {} eZR8<Z%
public void setCountType(String countTypes){ 9Th32}H
this.countType=countTypes; j$|Yd=
} G)tq/`zNw
public void setCountId(int countIds){ E1l\~%A
this.countId=countIds; 4P O%qO
} yv!''F:9F
public String getCountType(){ %|D\j-~
return countType; ;G4HMtL
} hdsgOu
public int getCountId(){ 8zCGMhd
return countId; yNLa3mW
} X>6~{3
} U<gUX07
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CountCache.java |L.~Amd
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/* Cdt,//xrz
* CountCache.java GqIvvnw@f
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* Created on 2007年1月1日, 下午5:01 A5.'h<
* (.quX@w"m
* To change this template, choose Tools | Options and locate the template under ,rH)}C<Q+
* the Source Creation and Management node. Right-click the template and choose &-8-xw#.
* Open. You can then make changes to the template in the Source Editor. ~P]HG;$?n
*/ -hG 9
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package com.tot.count; Cb@S </b
import java.util.*; ohc/.5Kl
/** S0Bl?XsD_
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* @author < ;%q
*/ !0. 5
public class CountCache { pzt Zb
public static LinkedList list=new LinkedList(); px
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/** Creates a new instance of CountCache */ #>=/15:
public CountCache() {} 5&