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^C!RSQ
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CountBean.java )/i4YLO
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/* a#>t+.dd
* CountData.java o^N%;d1%E
* wN$uX#W|
* Created on 2007年1月1日, 下午4:44 KS8\F0q
* _GRv
* To change this template, choose Tools | Options and locate the template under F'fM?!(
* the Source Creation and Management node. Right-click the template and choose r]xdhR5
* Open. You can then make changes to the template in the Source Editor. >E{#HPpBi
*/ N n:m+ZDo^
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package com.tot.count; v UJ sFR
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/** 69[w/\
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* @author #=>kw^5
*/ ye9QTK6$,
public class CountBean { Pau&4h0
private String countType; 5Xla_@WLW
int countId; b49|4
/** Creates a new instance of CountData */ &xF4p,7
public CountBean() {} }P7xdQ6
public void setCountType(String countTypes){ +*]SP@|IYI
this.countType=countTypes; R?i-"JhW
} 8'>.#vyMGv
public void setCountId(int countIds){ xy2eJJq
this.countId=countIds; t%ou1&SO
} {5?!`<fF
public String getCountType(){ ^2P;CAjj-
return countType; k)o7COx
} 2-/YYe;C
public int getCountId(){ }d$vcEI$3
return countId; (2&K(1.Y
} $=QNGC2+
} L|vaTidc0
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CountCache.java 1WZKQeOo
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/* \L&qfMjW"Z
* CountCache.java ZfF`kD\
* ;L MEU_
* Created on 2007年1月1日, 下午5:01 "dFdOb"O-
* =t <:zLe
* To change this template, choose Tools | Options and locate the template under n$A(6]z5O
* the Source Creation and Management node. Right-click the template and choose Vz+=ZK r5
* Open. You can then make changes to the template in the Source Editor. =D;UMSf
*/ ]*t*/j;N
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package com.tot.count; R;N>#_9HU
import java.util.*; ,(5dQ` hA0
/** as\)S?0`.
* M]pel\{M
* @author X,Q6
*/ |ij W_r
public class CountCache { gDjd{+LUo
public static LinkedList list=new LinkedList(); @vDgpb@TM
/** Creates a new instance of CountCache */ 1-ndJ@Wlz
public CountCache() {} c9/
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public static void add(CountBean cb){ ahz@HX
if(cb!=null){ GHJQ d&G8G
list.add(cb); :ok!,QN
} Z\oAE<$
} %K/G+
} bE%mgaOh
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CountControl.java ^.B `Z{Jb
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/* rA>R`
* CountThread.java !S$oaCxM
* Ve')LY<
* Created on 2007年1月1日, 下午4:57 9X*eE
* J,&