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: W'.s\e?gh
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CountBean.java _',prZ*
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/* bD[!/'4eJ
* CountData.java kWe{r5C7
* 7A\~)U@
* Created on 2007年1月1日, 下午4:44 %9M~f*
* N\#MwLm
* To change this template, choose Tools | Options and locate the template under m"fNK$_d
* the Source Creation and Management node. Right-click the template and choose 20iq2
* Open. You can then make changes to the template in the Source Editor. yfx7{naKC`
*/ q*7zx_ o
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package com.tot.count; B|4X}*@SX
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/** E7CH^]x
* q@@T]V6
* @author phn9:{TI
*/ '{J&M|<A
public class CountBean { C!R1})_^
private String countType; Xy@7y[s]
int countId; 5o6>T!
/** Creates a new instance of CountData */ e#Z$o($t
public CountBean() {} gx&Tt
public void setCountType(String countTypes){ r; xLP
this.countType=countTypes; ??i,Vr@)w
} |R56ho5C
public void setCountId(int countIds){ cFJ-Mkll
this.countId=countIds; Pp|*J^U 4
} aAA9$
public String getCountType(){ ,Vh{gm1
return countType; :^fcC[$K
} B"v.*
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public int getCountId(){ m<w"T7
return countId; s.x&LG
} qR8u$2}NY
} Uv?|G%cD-
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CountCache.java x#Q>J"g
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/* #Ap;_XcKw
* CountCache.java K"0PTWt
* ph_4q@
* Created on 2007年1月1日, 下午5:01 LK;k'IJ
* n':! ,a[
* To change this template, choose Tools | Options and locate the template under pFm=y#!t
* the Source Creation and Management node. Right-click the template and choose ^kgBa2 7
* Open. You can then make changes to the template in the Source Editor. r.T<j.\
*/ l6~-8d+lfN
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package com.tot.count; z9p05NFH
import java.util.*; Y)$ ;Ax-D
/** oh
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* C:uz6i1
* @author E!Zx#XP1
*/ Qq@G\eRo
public class CountCache { ?0
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public static LinkedList list=new LinkedList(); 9XHz-+bQ
/** Creates a new instance of CountCache */ X5]TY]
public CountCache() {} <97d[/7i
public static void add(CountBean cb){ h8X g`C\
if(cb!=null){ #CnHf
list.add(cb); 8srBHslI
} g
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} [J
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} )'hH^(Yu
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CountControl.java R@*O!bD
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/* nZ_v/?O
* CountThread.java xEltwuDd?
* c=[O
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* Created on 2007年1月1日, 下午4:57 {66fG53x
* x%<
* To change this template, choose Tools | Options and locate the template under ;),BW g
* the Source Creation and Management node. Right-click the template and choose (Si=m;g
* Open. You can then make changes to the template in the Source Editor. $v`afd y
*/ T?p`)
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package com.tot.count; 8*c3|
import tot.db.DBUtils; -L3|&