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: e /;Ui
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CountBean.java >jl"Yr#
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/* >;xEzc!W3*
* CountData.java `H/HLCt
* 2SG|]=
* Created on 2007年1月1日, 下午4:44 3{M IBMA
* 3=bzIU
* To change this template, choose Tools | Options and locate the template under GU&XK7L
* the Source Creation and Management node. Right-click the template and choose QH\*l~;B\
* Open. You can then make changes to the template in the Source Editor. 9U}EVpD
*/ 8" 8{Nf-"
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package com.tot.count; ^D4 b\mF
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/** 5jNBt>.0
* 3%EwA\V(
* @author nj7Ri=lyS
*/ k})9(Sy~
public class CountBean { PYz| d
private String countType; 't)j
int countId; {zF
/** Creates a new instance of CountData */ I}:>M!w
public CountBean() {} n+uq|sYVa
public void setCountType(String countTypes){ ^ *
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this.countType=countTypes; {7/6~\'/@
} >^InNJd
public void setCountId(int countIds){ r456M-~
this.countId=countIds; gX(QRQ
} +#B%Y K|LR
public String getCountType(){ 8#Z$}?W
return countType; q6_1`Ew
} ZN4&:9M
public int getCountId(){ uDoSe^0
return countId; 7gQt
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} !Aw.f!
} K4RjGSaF
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CountCache.java _R-#I
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/* =u;q98r
* CountCache.java D3^v[>E2
* -5>g 0o2
* Created on 2007年1月1日, 下午5:01 D1g1"^~g
* 1}ToR=
* To change this template, choose Tools | Options and locate the template under (U.&[B
* 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. wy-!1wd
*/ "V:UQ<a\
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package com.tot.count; *v5y]E%aW
import java.util.*; 15s?QSKj
/** #F{|G:\@[
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* @author
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*/ A6U6SvM;
public class CountCache { ~~fL`"
public static LinkedList list=new LinkedList(); (6A{6_p
/** Creates a new instance of CountCache */ [R:O'AP}@}
public CountCache() {} <'vM+Lk
public static void add(CountBean cb){ fsmH];"GD
if(cb!=null){ !EW]:u
list.add(cb); <