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: b)6D_Az7c
"M<8UE \n
CountBean.java Eq% }
/Wi[OT14
/* I,E?h?6Y
* CountData.java *D'22TO[[!
* n<Z({\9&H
* Created on 2007年1月1日, 下午4:44 .M qP_Z',
* LoURC$lS
* To change this template, choose Tools | Options and locate the template under xsIY7Ss U
* the Source Creation and Management node. Right-click the template and choose S ^!n45l
* Open. You can then make changes to the template in the Source Editor. Ansk,$
*/ 1vS#K=sb
,1y@Z 5wy
package com.tot.count; f/ U`
/MIe(,>Uh
/** 4-l8,@9
* +jAGGv^)
* @author :N:yLd} &
*/ EuEZ D+
public class CountBean { ST|x23|O]
private String countType; R}-(cc%5
int countId; ^PDJ0k/u1
/** Creates a new instance of CountData */ 4)S,3G
public CountBean() {} "H=6j)Cb
public void setCountType(String countTypes){ {JO^tI
this.countType=countTypes; Df}A^G >X
} LGq'WU31:)
public void setCountId(int countIds){ DEBB()6,
this.countId=countIds; :,3C 0T3r
} $POu\TO
public String getCountType(){ Ab~3{Q]#
return countType; .8 2P(}h
} |h KDvH
public int getCountId(){ Wvq27YK'
return countId; ;o
6lf_
} R8Wr^s>'
} /}((l%U E.
s,"]aew
CountCache.java 4(#'_jS
WEw6He;
/* sSr&:BOsi
* CountCache.java fZ6MSAh
* fnpYT:%fG
* Created on 2007年1月1日, 下午5:01 HSw;^E)1
* _jvxc'6
* To change this template, choose Tools | Options and locate the template under R a O-H
* the Source Creation and Management node. Right-click the template and choose 'S20\hwt-
* Open. You can then make changes to the template in the Source Editor. <]6SN
*/ T"(&b~m2b4
X1:V<,}"
package com.tot.count; "x#-sZ=
import java.util.*; TeMHm?1^
/** 2VPdw@"~}
* ~Sdb_EZ
* @author pD8+ 4;A
*/ ! :Y:pu0
public class CountCache { aR[JD2G
public static LinkedList list=new LinkedList(); 3BzNi'
/** Creates a new instance of CountCache */ _Ym]Mj' ln
public CountCache() {} cA&9e<
public static void add(CountBean cb){ n#cC+>*>+
if(cb!=null){ KsddA
list.add(cb); 2ElJbN#
} #"}JdBn
} bc*X/).
} Av$]|b
Tg7an&#
CountControl.java 2kqu p)82e
^Xz@`_I
/* {WJ m
* CountThread.java 0}<