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: <e6=% 9
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CountBean.java liNON
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/* u5gZxO1J5
* CountData.java 2A$0CUMb
* ~2N-k1'-'
* Created on 2007年1月1日, 下午4:44 "L~@.W!@
* ^[M~K5Y
* To change this template, choose Tools | Options and locate the template under hrM"Zg
* the Source Creation and Management node. Right-click the template and choose 5(}H
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* Open. You can then make changes to the template in the Source Editor. d7bjbJwu
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package com.tot.count; &R\XUxI
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/** C"T ,MH
* '}O!2W&Y]%
* @author 8SD}nFQ
*/ =O^7TrM
public class CountBean { R/N<0!HZ
private String countType; l:tpL(%
int countId; ofEqvoi@
/** Creates a new instance of CountData */ {qAu/ixp
public CountBean() {} '=%i,
public void setCountType(String countTypes){ `QCD$=
this.countType=countTypes; jCWu\Oe
} R;=6VH
public void setCountId(int countIds){ E0bFx5e5fu
this.countId=countIds; M5+W$W
} q=[U}{
public String getCountType(){ !yCl(XT
return countType; &8Wlps`
} t61'LCEis
public int getCountId(){ Rk[8Bd?
return countId; iH _"W+dq
} *7vue"I*Z
} ^X;JT=r
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CountCache.java byj[u!{
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/* {dZ8;Fy4
* CountCache.java 9XN~Ln@}
* 2<.Vv\
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* Created on 2007年1月1日, 下午5:01 2?*1~ 5~I
* `t\z
* To change this template, choose Tools | Options and locate the template under pFH?/D/q
* the Source Creation and Management node. Right-click the template and choose L9'-
* Open. You can then make changes to the template in the Source Editor. cd"wNH-
*/ 2TCRS#z
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package com.tot.count; g Np-f
import java.util.*; \R;K>c7=
/** @5*xw1B
* w2<*$~C]
* @author 4O Zy&,
*/ 3&'R1~Vh
public class CountCache { Cs;<'[_?YO
public static LinkedList list=new LinkedList(); NQ3|\<Wt
/** Creates a new instance of CountCache */ i~AJ.@
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public CountCache() {} AuM:2N2
public static void add(CountBean cb){ L(Rorf~V
if(cb!=null){ 'qlxAYw<f
list.add(cb); j)<[j&OWw
} 1(F'~i|5
} NFM-)Z57
} Pb=rFas*C
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CountControl.java pgfu+K7?w
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/* D99N#36PU
* CountThread.java Bzm.X=U:
* 8I {56$
* Created on 2007年1月1日, 下午4:57 H!^C 2
* u>
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* To change this template, choose Tools | Options and locate the template under ^"/Dih\_
* the Source Creation and Management node. Right-click the template and choose 9/QS0
* Open. You can then make changes to the template in the Source Editor. GfQ^@Tl
*/ !%)L&W_
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package com.tot.count; V'$oTZ`
import tot.db.DBUtils; m4\g o
import java.sql.*; oYGUjI
/** )da:&F -
* t)`+d=P
* @author =z']s4
*/ Fj48quW1\P
public class CountControl{ FRD<0o /`
private static long lastExecuteTime=0;//上次更新时间 fzOMX
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private static long executeSep=60000;//定义更新间隔时间,单位毫秒 *@=fq|6l 2
/** Creates a new instance of CountThread */ A<