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: %w$mSG
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CountBean.java +ZX.1[O
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/* X CzXS.
* CountData.java AO $Wy@
* /,X7.t_-
* Created on 2007年1月1日, 下午4:44 Uh}+"h5
* nW11wtiO.
* To change this template, choose Tools | Options and locate the template under g**5z'7
* the Source Creation and Management node. Right-click the template and choose ^Wm*-4
* Open. You can then make changes to the template in the Source Editor. N2T&,&,t
*/ YIO.yN"0
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package com.tot.count; '=p?
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/** -n-Z/5~ X
* "
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* @author s@PLS5d"
*/ QypZH"Np
public class CountBean { JDKLKHOMZ
private String countType; Ts#pUoE~+H
int countId; Wa<-AZnh
/** Creates a new instance of CountData */ 9ZhDZ~)p,
public CountBean() {} gX_SKy
public void setCountType(String countTypes){ ]hL:33
this.countType=countTypes; a}dw9wU!:
} js
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public void setCountId(int countIds){ 12 -EDg/1
this.countId=countIds; }Bi@?Sb
} B>, A(X&
public String getCountType(){ e+{BJN
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return countType; lA]N04 d
} _CL{IY
public int getCountId(){ qW3x{L$c
return countId; }1Z6e[K?
} tJAnuhX
} L ?Cjo4xS
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CountCache.java :xtT)w
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/* L0xsazX:x
* CountCache.java 9OfU7_m
* 9>;} /*:H
* Created on 2007年1月1日, 下午5:01 ZL,8,;]
* [1U{ci&=p
* To change this template, choose Tools | Options and locate the template under "O``7HA}
* the Source Creation and Management node. Right-click the template and choose v1h.pbz`w
* Open. You can then make changes to the template in the Source Editor. DL1
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*/
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package com.tot.count; +<{m45
import java.util.*; ]);NnsG
/** %jTw
* +!><5
* @author op.d;lO@
*/ ly=a>}F_
public class CountCache { H#`8Ey
public static LinkedList list=new LinkedList(); #N$9u"8C
/** Creates a new instance of CountCache */ c;^A)_/
public CountCache() {} (-J<Vy]
public static void add(CountBean cb){ R+uw/LG
if(cb!=null){ ;?`@"YG)
list.add(cb); %4/xH9
} C5MqwNX
} W "k|K:
} &r:=KT3
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CountControl.java jqtVpNwM
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/* lC4PKmno
* CountThread.java bJ6p,]g
* ol }`Wwy
* Created on 2007年1月1日, 下午4:57 .6Fsw
* fM2^MUp[=1
* To change this template, choose Tools | Options and locate the template under wV>c" J
* the Source Creation and Management node. Right-click the template and choose YXRjx.srf
* Open. You can then make changes to the template in the Source Editor. G A EZY
*/ 7"a4/e;^
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package com.tot.count; z37Z%^
import tot.db.DBUtils; -;/
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import java.sql.*; \%4|t,en
/** h$/JGm5uDb
* H?{MRe
* @author "k, K ~@}
*/ QF&6?e06p0
public class CountControl{ ]'UgZsJ
private static long lastExecuteTime=0;//上次更新时间 ~of,,&
private static long executeSep=60000;//定义更新间隔时间,单位毫秒 m1V- %kUI
/** Creates a new instance of CountThread */ ^)<