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: #U\$@4D
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CountBean.java P1$f}K}
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/* ubD#I{~J
* CountData.java #sL/y
* -H4PRCDH
* Created on 2007年1月1日, 下午4:44 X@cSP7b
* eVTO#R*'|
* To change this template, choose Tools | Options and locate the template under {798=pC<.
* the Source Creation and Management node. Right-click the template and choose *jGPGnSo
* Open. You can then make changes to the template in the Source Editor. %t q&
*/ P7'M],!9w
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package com.tot.count; (Bsw/wv
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/** 1p~5h(jI
* $-Cy
* @author j+nv=p
*/ Bf/|{@
public class CountBean { nVNs][
private String countType; lelMt=
int countId; =ydpU<aS
/** Creates a new instance of CountData */ ssPI$IRg!
public CountBean() {} TKd6MZhT
public void setCountType(String countTypes){ Zct!/u9 Q
this.countType=countTypes; <vL}l: r
} b##1hm~+9
public void setCountId(int countIds){ zqY)dk
this.countId=countIds; &Jrq5Q C
} ,HQ1C8
public String getCountType(){ UUZ6N ZQI
return countType; >N :|Km\
} -WQ_[t9l
public int getCountId(){ z<FV1niE
return countId; _-g-'Hr+N
} +#^sy>
} FZM
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CountCache.java [_B+DD=}
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/* U`?zC~
* CountCache.java 6RR4L^(m
* a15,'v$O
* Created on 2007年1月1日, 下午5:01 #L|JkBia
* 5q0BG!A%T
* To change this template, choose Tools | Options and locate the template under h
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* the Source Creation and Management node. Right-click the template and choose azz#@f1
* Open. You can then make changes to the template in the Source Editor. CpBQ>!CW
*/ COxZ
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package com.tot.count; GapX$Jb,p
import java.util.*; KZ367&>b7
/** z226yNlS
* bCJ<=X,g`K
* @author z7NGpA(
*/ hX{g]KE>
public class CountCache { ,3fuX~g
public static LinkedList list=new LinkedList(); +An![1N,
/** Creates a new instance of CountCache */ ]6?c8/M
public CountCache() {} w>/pQ6=OFR
public static void add(CountBean cb){ ,qBnqi[
if(cb!=null){ ~@)-qV^~
list.add(cb); LaEX kb*s
} H4,.H,PZ
} ZmYa.4'L
} 2@=cqD7x
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CountControl.java b.w(x*a
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