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: CG@Fn\J
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CountBean.java XXX y*/P
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/* M]k Q{(
* CountData.java xMQ>,nZ
* %{IgY{X
* Created on 2007年1月1日, 下午4:44 )N~ p4kp
* ChUE,)
* To change this template, choose Tools | Options and locate the template under xx1l Ecj
* the Source Creation and Management node. Right-click the template and choose &QD)1b[U
* Open. You can then make changes to the template in the Source Editor. LHx ")H?,
*/ 2!}F+^8'P
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package com.tot.count; Hmm0H6&u
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/** 0+qC_ISns
* o:cTc:l)
* @author ^/}4M'[ w
*/ cy(w*5Upu
public class CountBean { {T^D&i# o
private String countType; KyT=:f
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int countId; Q5dqn"?
/** Creates a new instance of CountData */ a;KdkykG
public CountBean() {} JW><&hY$"
public void setCountType(String countTypes){ oL R/\Y(
this.countType=countTypes; U!Zj%H1XQ0
} lr;ubBbT
public void setCountId(int countIds){ VHqoa>U,*
this.countId=countIds; 7neJV
} |.RyF@N`T
public String getCountType(){ Q1|6;4L
return countType; jyF*JQjK4
} B_[I/ ?
public int getCountId(){ $ S3b<]B
return countId; gfN=0Xj4
} \kUQe-:he
} urkuG4cY
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CountCache.java
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/* w (`g)`
* CountCache.java /d6Rdl`w
* S-\wX.`R1
* Created on 2007年1月1日, 下午5:01 FsO-xG"@"
* ud)WH|Z
* To change this template, choose Tools | Options and locate the template under \WnTpl>B
* the Source Creation and Management node. Right-click the template and choose R0#scr
* Open. You can then make changes to the template in the Source Editor. @$5~`?
*/ k kD#Bb
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package com.tot.count; x.t&NP^V)
import java.util.*; P}a$#a'!
/** am3JzH
* #E=8kbD7
* @author E<! L^A
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*/ =AzkE]
public class CountCache { 'xai5X
public static LinkedList list=new LinkedList(); ,0AS&xs$
/** Creates a new instance of CountCache */ [S]q'c)
public CountCache() {} 44~ReN}`
public static void add(CountBean cb){ EI?8/c
if(cb!=null){ ";&PtLe
list.add(cb); _~CJitR3
} z8S]FpM6
} (t&`m[>K
} Z-ci[Zv
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CountControl.java )S4ga
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/* 8Vn
* CountThread.java wDoCc:
* c-NUD$
* Created on 2007年1月1日, 下午4:57 }yrs6pQ
* &