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: #P,[fgNy
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CountBean.java kVG6\<c]
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/* F~d7;x=g
* CountData.java 2A18hP`^
* LK-K_!F
* Created on 2007年1月1日, 下午4:44 /Mi-lh^j-
* 9B?t3:
* To change this template, choose Tools | Options and locate the template under GqK&'c
* the Source Creation and Management node. Right-click the template and choose G,mH!lSm,
* Open. You can then make changes to the template in the Source Editor. ;5JIY7t
*/ v[3hnLN%
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package com.tot.count; 0z'={6,
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/** <>5:u
* OV@h$fg
* @author l]58P
*/ J9$]]\52s.
public class CountBean { ~jRk10T(B
private String countType; UV
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int countId; uX5--o=C
/** Creates a new instance of CountData */ PE6u8ZAb"
public CountBean() {} b1['uJF
public void setCountType(String countTypes){ Ow .)h(y/
this.countType=countTypes; r#6l?+W ;
} ,ovv
public void setCountId(int countIds){ (J;zk b
this.countId=countIds; g ]PLW3
} fE7a]REK
public String getCountType(){ JXy667_
return countType; /K<GN7vN
} 39a]B`y
public int getCountId(){ ptc H>wM!
return countId; 4f @\f7\
} L8-[:1
} O^="T^J
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CountCache.java {;(g[H=q;
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/* _ry En
* CountCache.java !k??Kj
* 1n5e^'z
* Created on 2007年1月1日, 下午5:01 p7=^m>Z6
* [,szx1
* To change this template, choose Tools | Options and locate the template under t[yD8h
* the Source Creation and Management node. Right-click the template and choose ;x0 KaFk
* Open. You can then make changes to the template in the Source Editor. ka9v2tE\
*/ U=cWvr65
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package com.tot.count; '/qe#S
import java.util.*; U%PMV?L{
/** \z2hXT@D
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* @author \g6 #MNW
*/ o)'=D(
public class CountCache { Vx4pP$S
public static LinkedList list=new LinkedList(); ALt";8Oa
/** Creates a new instance of CountCache */ ~\s &]L
public CountCache() {} .2 SIU4[P
public static void add(CountBean cb){ fjZveH0
if(cb!=null){ zvs 2j"lb
list.add(cb); qx<zX\qI6n
} N+@@EOmH
} nF[eb{GR`
} E_I6
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CountControl.java ~x^+OXf!^g
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/* d?qO`-
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* CountThread.java 4 }YT@={g}
* (pxz#B4
* Created on 2007年1月1日, 下午4:57 &b]KMAo3
* Z
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* To change this template, choose Tools | Options and locate the template under :V1ZeNw
* the Source Creation and Management node. Right-click the template and choose l0bT_?LhK
* Open. You can then make changes to the template in the Source Editor. cXEy>U|/
*/ (L
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package com.tot.count; g$+O<a@ n
import tot.db.DBUtils; cFNtY~(b
import java.sql.*; (8X8<>w~
/** KNyD}1
* S5 oHe4#89
* @author GKDG5u;
*/ op{(mn
public class CountControl{ >0okb3+
private static long lastExecuteTime=0;//上次更新时间 gwjv&.T6^
private static long executeSep=60000;//定义更新间隔时间,单位毫秒 v__Go kj-
/** Creates a new instance of CountThread */ RX|&