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: WCg*TL}
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CountBean.java (\Iz(N["G
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/* RW!_ZzZ
* CountData.java ),<E-Ub
* `v1Xywg9P
* Created on 2007年1月1日, 下午4:44 q\B048~KK
* +EmT+$>J
* To change this template, choose Tools | Options and locate the template under nj (/It
* the Source Creation and Management node. Right-click the template and choose ~4YLPMGKl
* Open. You can then make changes to the template in the Source Editor. {EoRY/]
*/ C^o9::ER
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package com.tot.count; HOn,c@.9Y
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/** ]<pnHh+2A
* 6a+w/IO3OU
* @author ha;Xali ]
*/ Y=%SK8]Q;
public class CountBean { Y\.ds%G
private String countType;
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int countId; `sS\8~A
/** Creates a new instance of CountData */ QEh_2
public CountBean() {} Y4\BHFq
public void setCountType(String countTypes){ W;Rx(o>
this.countType=countTypes; LIo3a38n?y
} n>)'!
public void setCountId(int countIds){ 0g-bApxz*&
this.countId=countIds; %~V+wqu
} V-y"@0%1
public String getCountType(){ },"T,t#
return countType; .%.kEJh`
} JJ50(h)U
public int getCountId(){ ]%{.zl!
return countId; GwOn&EpY!
} BEQ$p)
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} 8sDbvVh1F
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CountCache.java r((2.,\Z
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/* +0w~Skd,
* CountCache.java a?zn>tx
* 14[+PoF^A
* Created on 2007年1月1日, 下午5:01 `]Uu` b
* 6 9 PTo
* To change this template, choose Tools | Options and locate the template under 2(-J9y|
* the Source Creation and Management node. Right-click the template and choose ?P+n0S!
* Open. You can then make changes to the template in the Source Editor. z/JoUje
*/ KuU]enC3
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package com.tot.count; m3apeIEi[
import java.util.*; h\oAW?^
/** kQ,#NR/q6
* x>>#<hOz[
* @author B! `Dj,_
*/ FS3MR9
public class CountCache { W\'njN
public static LinkedList list=new LinkedList(); X{n7)kgL
/** Creates a new instance of CountCache */ DcNQ2Zz?%
public CountCache() {} c+6/@y
public static void add(CountBean cb){ WjyuaAWY
if(cb!=null){ E%eTjvvxus
list.add(cb); dQ6n[$Q@N
} jWn!96NhlL
} SIJ:[=5!7
} IL:d`Kbqf
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CountControl.java bIFKP
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/*
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* CountThread.java ZZkxEq+D
* p2c4 <f-M
* Created on 2007年1月1日, 下午4:57 3:">]LMi
* wq[\Fb`
* To change this template, choose Tools | Options and locate the template under [0_JS 2KE
* the Source Creation and Management node. Right-click the template and choose `EV"
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* Open. You can then make changes to the template in the Source Editor. &1O!guq%
*/ 9Tgl/}q)
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package com.tot.count; i+/:^tc;
import tot.db.DBUtils; U({20
import java.sql.*; H-?wEMi)*u
/** h'i8o>7
* W\(u1>lj
* @author 63s<U/N
*/ +N161vo7
public class CountControl{ ?[$=5?
private static long lastExecuteTime=0;//上次更新时间 BrW1:2w
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private static long executeSep=60000;//定义更新间隔时间,单位毫秒 uCA!L)$
/** Creates a new instance of CountThread */ @/S6P-4
public CountControl() {} IrAc&Eh