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:
kb 74:
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CountBean.java YnnK]N;\x
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/* Mq~E'g4#
* CountData.java 8^EWD3N`
* `XF[A8@h
* Created on 2007年1月1日, 下午4:44 !84Lvg0&
* uKzx >\}?1
* To change this template, choose Tools | Options and locate the template under W'"hjQ_
* the Source Creation and Management node. Right-click the template and choose d7BpmM
* Open. You can then make changes to the template in the Source Editor. [? "hmSJ
*/ G1it
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package com.tot.count; 41/civX>V
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/** ]2L11"erP
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* @author ()j)}F#Z`
*/ N@_y<7#C
public class CountBean { NI"Zocp
private String countType; '`k
int countId; *DcIC]ao[
/** Creates a new instance of CountData */ u gRyUny
public CountBean() {} D(Z#um8n
public void setCountType(String countTypes){ Q `K^>L1
this.countType=countTypes; /T
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} B t3++ Mj
public void setCountId(int countIds){ OLF6["0Rn
this.countId=countIds; [Cd#<Te3
} "1""1";
public String getCountType(){ GZ<@#~1%\
return countType; L$a{%]I
} u`B/ 9-K)y
public int getCountId(){ E_30)"]
return countId; A##Q>|>)
} Dd0yQgCu
} ^{J^oZ'%~
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CountCache.java %1cxZxGT
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/* A"DGn
* CountCache.java Y#): 1C1
*
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* Created on 2007年1月1日, 下午5:01 n9
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* !<h9XccN
* To change this template, choose Tools | Options and locate the template under L})fYVX
* the Source Creation and Management node. Right-click the template and choose G,6`:l
* Open. You can then make changes to the template in the Source Editor. zZ9Ei-Q
*/ 2N-p97"g
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package com.tot.count; r#j3O}(n
import java.util.*; [GM!@6U
/** )jwovS?V
* X,M!Tp
* @author UC`sq-n
*/ Ac*)z#H
public class CountCache { 9]chv>dO)=
public static LinkedList list=new LinkedList(); @w%kOX
/** Creates a new instance of CountCache */ zB7^L^Y
public CountCache() {} ~yngH0S$[b
public static void add(CountBean cb){ MD;,O3Ge
if(cb!=null){ m-[xrVV
list.add(cb); &a >UVs?=
} $^e_4]k
} "FE%k>aV@v
}
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CountControl.java >_\]c-~<
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/* Vw.4;Zy(
* CountThread.java /lHs]) ,
* Jn&u