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: x6N)T4J(
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CountBean.java ' ?tx?t
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/* wjEyU:
* CountData.java [P_@-:(O
* VCf/EkC
* Created on 2007年1月1日, 下午4:44 oyC5M+shP9
* VkW N1A
* To change this template, choose Tools | Options and locate the template under eICavp
* the Source Creation and Management node. Right-click the template and choose ykMdH:
* Open. You can then make changes to the template in the Source Editor. n[+$a)$8
*/ sQ";
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package com.tot.count; mZ_643|
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/** q#C;iK4
* %7}ibz4iF
* @author tleWJR8oc
*/ "@ 1+l&
public class CountBean { FW=`Fm@z%%
private String countType; ?c ur}`
int countId; !a9`]c
/** Creates a new instance of CountData */ kD*r@s]=
public CountBean() {} .30eO_msK
public void setCountType(String countTypes){ 1buVV]*~
this.countType=countTypes; tXXnHEz
} ]Y;5U
public void setCountId(int countIds){ *TyLB&<t
this.countId=countIds; 2pQ29
} ;]vJ[mi~
public String getCountType(){ 9u0<$UY%
return countType; Ie"eqO!
} 4(nwi[1Y
public int getCountId(){ @h=r;N#/`P
return countId; i U"2uLgb
} +Hd'*'c
} ?Z(xu~^/
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CountCache.java BZP{{
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/* 6N<
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* CountCache.java r}nz )=\Cj
* ~8 S2BV3@
* Created on 2007年1月1日, 下午5:01 eXA@J[-M:
* 4ux^K:z
* To change this template, choose Tools | Options and locate the template under }kZ)|/]kn
* the Source Creation and Management node. Right-click the template and choose 3Z_\.Z1R@
* Open. You can then make changes to the template in the Source Editor. -^ceTzW+
*/ +?9.
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package com.tot.count; as^!c!
import java.util.*; G0h/]%I
/** qw<~v?{|C
* iy-~CPNB_
* @author F a+#bX7
*/ T|^KG<uPV!
public class CountCache { R1?LB"aN
public static LinkedList list=new LinkedList(); ]5a,%*f+
/** Creates a new instance of CountCache */ 9M;k(B!
public CountCache() {} 2A&Y