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: {H#1wu^]O$
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CountBean.java c!T^JZBb
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/* >~_y\
* CountData.java LN
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* Created on 2007年1月1日, 下午4:44 I7r{&X) D
* d*,% -Io
* To change this template, choose Tools | Options and locate the template under 9xP{#Qa
* the Source Creation and Management node. Right-click the template and choose p/
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* Open. You can then make changes to the template in the Source Editor. (l{+T#
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package com.tot.count; 9m0`;~!
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/** L~x3}o$-o
* #HWz.Wb
* @author n{d}]V@
*/ Zq~2 BeB
public class CountBean { 7s;<5xc
private String countType; g_G?gO
int countId; `J[(Dx'y=t
/** Creates a new instance of CountData */ @k<RX'~q
public CountBean() {} Vo+d3
public void setCountType(String countTypes){ O_K@\<;~
this.countType=countTypes; 0*L|rJf
} Dx$74~2e
public void setCountId(int countIds){ `IOp*8
this.countId=countIds; Wv_5sPqLW
} fKOm\R47
public String getCountType(){ oo)P(_"u
return countType; OMd{rH
} s=(~/p#M
public int getCountId(){ u><ax
return countId; r(yJE1Wz
} p|,K2^?Y
} <4bv=++pS
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CountCache.java +cvz
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/* Z{+h~?63
* CountCache.java W=5+k0Q
* ]/p0j$Tq$
* Created on 2007年1月1日, 下午5:01 VXQS~#dQj
* ioi0^aM
* To change this template, choose Tools | Options and locate the template under Ox?LVRvxI
* the Source Creation and Management node. Right-click the template and choose 6R%c+ok8i
* Open. You can then make changes to the template in the Source Editor. fpM4q
*/ -kZz,pNQ,
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package com.tot.count; $qD8vu )|j
import java.util.*; F){f{-@)
/** W2|*:<Jt
* Vyj>&"28
* @author [A|W0
*/ fbB(WE+
public class CountCache { DG8$zl5
public static LinkedList list=new LinkedList(); 3
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/** Creates a new instance of CountCache */ 4S 2I]d
public CountCache() {} C+P}R]cT"
public static void add(CountBean cb){ Z{chAg\
if(cb!=null){ / Zz2=gDY
list.add(cb); |?s%8c'w=
} EYGJDv(S
} [Qy]henK
} WaWT
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CountControl.java ~Az20RrK)
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/* #Q 2$v;
* CountThread.java hz Vpv,|G
* 8Qu7x[tK?
* Created on 2007年1月1日, 下午4:57 '0H+ 2
* (S5'iksx
* To change this template, choose Tools | Options and locate the template under uz>s2I}B
* the Source Creation and Management node. Right-click the template and choose (d^pYPr{
* Open. You can then make changes to the template in the Source Editor. zq4,%$y8|
*/ 8f,jC+(
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