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: []^fb,5a
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CountBean.java zt&"K0X|
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/* kAc8[Hn
* CountData.java lICpfcc(+
* 90g=&O5@O
* Created on 2007年1月1日, 下午4:44 \
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* }eKY%WU>O
* To change this template, choose Tools | Options and locate the template under ,xcm:;&
* the Source Creation and Management node. Right-click the template and choose ckDWY<@v
* Open. You can then make changes to the template in the Source Editor. m9~cQ!m
*/ }Pi}?
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package com.tot.count; !*I0}I
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/** 8d|/^U.w~V
* wE*o1.
* @author $TU:iv1Fm
*/ E4}MU}C#[
public class CountBean { {>EM=ZZfg
private String countType; {3)^$F=T
int countId; A^L8"
/** Creates a new instance of CountData */ Qqm$Jl!
public CountBean() {} p. %lE!v
public void setCountType(String countTypes){ @%"+;D
this.countType=countTypes; B}?$kp
} mFk6a{+YX
public void setCountId(int countIds){ b=87k
this.countId=countIds; \d:AV(u
} :t)<$dtf[
public String getCountType(){ -F->l5
return countType; {7F?30: ]
} $u"*n\k>
public int getCountId(){ b79z<D
return countId; 1uwzo9Yg
} `4Db( ~
} xZE%Gf_U
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CountCache.java
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/* [}*xxy
* CountCache.java v)c[-:"z
* BN]{o(EB
* Created on 2007年1月1日, 下午5:01 ov xX.hO
* 1b``y
* To change this template, choose Tools | Options and locate the template under QKP@+E_U
* the Source Creation and Management node. Right-click the template and choose paYvYK-K?
* Open. You can then make changes to the template in the Source Editor. Au"7w=G`f
*/ <&CzM"\Em
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package com.tot.count; [&MhAzF
import java.util.*; PrQs_tNi
/** CqAv^n7 }
* h*lU&8)m\
* @author i
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*/ $`'%1;y@
public class CountCache { p E56CM
public static LinkedList list=new LinkedList(); IpYw<2'
/** Creates a new instance of CountCache */ hsJS(qEh.'
public CountCache() {} 1cdX0[sN
public static void add(CountBean cb){ #Zq[.9!q{
if(cb!=null){ n&fV^ x
list.add(cb); j0(+Kq:J
} kN8?.V%Utw
} N*{>8iFo4
} U#gv ~)\k
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CountControl.java -egu5#d>
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/* Qh{]gw-6
* CountThread.java =JDa[_lpN
* -Izc-W
* Created on 2007年1月1日, 下午4:57 w=}R'O;k
* P$hmDTn72
* To change this template, choose Tools | Options and locate the template under k1sR^&{l
* the Source Creation and Management node. Right-click the template and choose I]jK]]@
* Open. You can then make changes to the template in the Source Editor. <