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: |?^N@
-Q
Mwtr#q}
CountBean.java F g):>];<9
N.]~%)K:{
/* Yc~l Yz+b
* CountData.java z(O*DwY#
* *0L3#. i
* Created on 2007年1月1日, 下午4:44 `}uM91;
* d!Y%7LmSE@
* To change this template, choose Tools | Options and locate the template under yV L >Ie/
* the Source Creation and Management node. Right-click the template and choose .8ikcs
* Open. You can then make changes to the template in the Source Editor. Xa;wx3]t
*/ "7Kw]8mRR
&"T7KXx
package com.tot.count; IIXA)b!
&,Loqr
/** [J eq ?X9
* 5S&Qj7kr
* @author yLXIjR
*/ Xq37:E2
public class CountBean { /4+zT?f
private String countType; ^c.pvC"4j
int countId; ;Z"Iv
/** Creates a new instance of CountData */ |d6/gSiF
public CountBean() {} ;O,&MR{;|n
public void setCountType(String countTypes){ =)i^E9
this.countType=countTypes; Y Kp@n8A
} L.K| ]]u
public void setCountId(int countIds){ a5pM ~.]
this.countId=countIds; Pjvb}q=
} eL)m(
public String getCountType(){ iny/K/5bf
return countType; %zEy.7Ux
} %'=TYvB 2
public int getCountId(){ U Lq`!1{
return countId; QJR},nZ3
} O)&ME
} uP8 cW([
k`[>Bk%b
CountCache.java P$AHw;n[R
}waZGJLN
/* <.BY=z=H
* CountCache.java `2V{]F
* 8<Yv:8%B6
* Created on 2007年1月1日, 下午5:01 >
9z-/e
* vKdS1Dn1
* To change this template, choose Tools | Options and locate the template under g?}h*~<b
* the Source Creation and Management node. Right-click the template and choose TBF{@{.d
* Open. You can then make changes to the template in the Source Editor. PqyR,Bcx0
*/ TDg<&ND3
*8%uXkM m
package com.tot.count; <FZ*'F*M
import java.util.*; s6 K~I
/** vZ=dlu_t
* f|s,%AU"i
* @author S|yDGT1
*/ 7eZwpg?K
public class CountCache { -&v0JvTJ9j
public static LinkedList list=new LinkedList(); .)FFl
/** Creates a new instance of CountCache */ %5Elj<eHZ
public CountCache() {} w0<1=;_%
public static void add(CountBean cb){ O=!Eqa ExW
if(cb!=null){ iE{VmHp=
list.add(cb); [$\VvRu%
} 4!'4 l=jO
} Zjc0R
} Ipow
Jw^
ah!RQ2hDrV
CountControl.java HXqG;Fds(
?i~mt'O
/* 7~D5Gy
* CountThread.java x:]_z.5
* H3ob
8+J
* Created on 2007年1月1日, 下午4:57 j(_6.zf
* 8 }Maj
* To change this template, choose Tools | Options and locate the template under np7!y
U
* the Source Creation and Management node. Right-click the template and choose 7#26Smv
* Open. You can then make changes to the template in the Source Editor. ^7$Q"
*/ GN|xd+O_
VK}H;
package com.tot.count; uH)v\Js
import tot.db.DBUtils; 09Z\F^*$F
import java.sql.*; vFgnbWxG
/** bGp3V. H
* 7zXX&