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_q7ip%z
[JMz~~F
CountBean.java xfO!v>
9Wx q
/* yW|yZ(7
* CountData.java 3$l'>v+5{
* Mk|h ><Q"
* Created on 2007年1月1日, 下午4:44 t}nZrD
* _rs!6tp
* To change this template, choose Tools | Options and locate the template under }Ss#0Gee
* the Source Creation and Management node. Right-click the template and choose wc~a}0uz
* Open. You can then make changes to the template in the Source Editor. kt X(\Hf!
*/ B{s[SZ
'9<Mk-Aj
package com.tot.count; G0> 'H1 Z
|%&WYm6
/** R\0]\JEc
* "M_X9n_
* @author ((EN&X,v
*/ <diI*H<G
public class CountBean { _jU6[y|XLh
private String countType; D\j1`
int countId; jh\q2E~,`
/** Creates a new instance of CountData */ Ik;~u8j1e
public CountBean() {} QE<63|
public void setCountType(String countTypes){ JsfbY^wz
this.countType=countTypes; 4vBZb^W;9
} qh F/iUE
public void setCountId(int countIds){ Xb$)}n\9
this.countId=countIds; N ?V5gi
} vhWj_\m
public String getCountType(){ vuDp_p*]S
return countType; &z1r$X.AW
} <Er|s^C
public int getCountId(){ 6],5X^*Y
return countId; kz,Nz09}W
} v`y{l>r,
} eg?vYW
; M"hX
CountCache.java hs<7(+a
n2(~r
'r)
/* mqq~&nI
* CountCache.java 8.Y6r
* ^U~YG=!ww
* Created on 2007年1月1日, 下午5:01 tJHzhH)
* KkAk(9Q/3
* To change this template, choose Tools | Options and locate the template under l<7 b
* the Source Creation and Management node. Right-click the template and choose PJA 1/"
* Open. You can then make changes to the template in the Source Editor. YroKC+4"i
*/ [2)Y0; ["
"=yaeEp
package com.tot.count; v,+2CVdW
import java.util.*; 2&$ A x
/** >K50 h
* !^l<jrM
* @author g%4|vA8
*/ z${B|
public class CountCache { |!57Z4X
public static LinkedList list=new LinkedList(); (O&