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: M IR))j;
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CountBean.java W=!di3IA
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/* *.A{p ;JC(
* CountData.java 3mLtnRX[m
* ]}>uvl^l
* Created on 2007年1月1日, 下午4:44 {7LNQGiJ
* a>BPK"K2
* To change this template, choose Tools | Options and locate the template under rFG_CC2
* the Source Creation and Management node. Right-click the template and choose <g{d>j
* Open. You can then make changes to the template in the Source Editor. U$=#yg2
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*/ Ec l/2
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package com.tot.count; Yjh02wo
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/** ;.&k zzvJ
* HkdBPMs79
* @author s=83a{#K
*/ )wfqGkr=m!
public class CountBean { C0
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private String countType; 2~)r,.,
int countId; %%hG],w
/** Creates a new instance of CountData */ ]seOc],4
public CountBean() {} R}HNi(%"
public void setCountType(String countTypes){ dNT<![X\
this.countType=countTypes; G"nGaFT~
} 9?4:},FRmE
public void setCountId(int countIds){ ,w$:=;i
this.countId=countIds; 2rG$.cGN"
} X.J$
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public String getCountType(){ t-VU&.Y
return countType; whh#J
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} @Avve8S
public int getCountId(){ d3tr9B
return countId; GVUZn//
} +9R@cUr
} bDT@E,cSi
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CountCache.java 3&KRG}5
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/* ]@hN&W(+ x
* CountCache.java aP/Ff%5T
* rqz`F\A;%
* Created on 2007年1月1日, 下午5:01 n1;zml:7_
* O7# 8g$ZIv
* To change this template, choose Tools | Options and locate the template under ,V.Bzf%=O
* the Source Creation and Management node. Right-click the template and choose =RjseTS
* Open. You can then make changes to the template in the Source Editor. K%WG[p\Eu
*/ Q ?R3aJ
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package com.tot.count; v&8s>~i`K
import java.util.*; #(G"ya
/** TWSx9ii!M:
* JbLHW26pl
* @author i.0.oy>
*/ ['Y"6[1
public class CountCache { }5]7lGR
public static LinkedList list=new LinkedList(); 9oTtH7%
/** Creates a new instance of CountCache */ 7)dCdO
public CountCache() {} b;IzK'
public static void add(CountBean cb){ J)._&O$
if(cb!=null){ 0Q!/A5z
list.add(cb); !YENJJ
} cN%@
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} KK,
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} _o'a|=Osx>
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CountControl.java EClx+tz;`
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/* T*jQzcm~?
* CountThread.java aXh~w<5F
* )8*}-z
* Created on 2007年1月1日, 下午4:57 \"1%>O*
* @cu#rWiG
* To change this template, choose Tools | Options and locate the template under \/F*JPhy
* the Source Creation and Management node. Right-click the template and choose XWag+K
* Open. You can then make changes to the template in the Source Editor. L*(`ccU
*/ G|.6%-
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package com.tot.count; DLD 5>
import tot.db.DBUtils; PpezWo)9
import java.sql.*; !Wz4BBU8o
/** ^5rB/y,
* _t?#
* @author dry>TXG*
*/ "X \Yp_g
public class CountControl{ W?<<al*
private static long lastExecuteTime=0;//上次更新时间 -1} &\=8M
private static long executeSep=60000;//定义更新间隔时间,单位毫秒 +,T z +!
/** Creates a new instance of CountThread */ >9<