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: L4Kg%icz l
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CountBean.java 7!wc'~;
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/* xGFbh4H=8p
* CountData.java O3mw5<%15
* T8&eaAoo
* Created on 2007年1月1日, 下午4:44 4I .'./u
* OZC
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* To change this template, choose Tools | Options and locate the template under jFip-=T{4
* the Source Creation and Management node. Right-click the template and choose
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* Open. You can then make changes to the template in the Source Editor. o1"N{Eu
*/ d]:G#<.
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package com.tot.count; R+_!FnOJ
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/** H_Xk;fM
* *Mb'y d/|
* @author 'oH3|
*/ eoXbZ
public class CountBean { Bl^BtE?-b
private String countType; >; tE.CJH
int countId; yPY{ZADkQ
/** Creates a new instance of CountData */ g*`xEb='
public CountBean() {} O /:FY1
public void setCountType(String countTypes){ \w"~DuA
this.countType=countTypes; *K|ah:(r1\
} zR<fz
public void setCountId(int countIds){ 9gglyoZ%
this.countId=countIds; O;i0xWUh
} <EcxNj1
public String getCountType(){ D_1O4/
return countType; Ji:<eRx)
} .<Jv=
public int getCountId(){ y?P`vHf
return countId; pw5{=bD
} KV8<'g +2?
} qj `C6_?
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CountCache.java Dv
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/* fms(_Q:R?
* CountCache.java OZd
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* yimK"4!j5A
* Created on 2007年1月1日, 下午5:01 e /1x/v'
* Jgg< u#
* To change this template, choose Tools | Options and locate the template under l5~O}`gfh
* the Source Creation and Management node. Right-click the template and choose mlCg&fnDB
* Open. You can then make changes to the template in the Source Editor. ~MXhp5PI
*/ bo(w$&
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package com.tot.count; U^BM 5b
import java.util.*; #HW<@E
/** T,jb%uPcE
* sHMO9{[7H
* @author tbiM>qxB
*/ 17,mqXX>
public class CountCache { +GL$[ 5G
public static LinkedList list=new LinkedList(); aWH
/** Creates a new instance of CountCache */ ;E[Q/
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public CountCache() {} V"'PA-z3
public static void add(CountBean cb){ v;U5[
if(cb!=null){ rGXUV`5Na
list.add(cb); %vm_v.Q4)
} &xhwOgI