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: +!@xH];
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CountBean.java
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/* %w_MRC
* CountData.java ^Ip\`2^u
* TFbc@rfB
* Created on 2007年1月1日, 下午4:44 T>|+cg
* {{A=^rr%C
* To change this template, choose Tools | Options and locate the template under ++2a xRl
* the Source Creation and Management node. Right-click the template and choose v*excl~
* Open. You can then make changes to the template in the Source Editor. >a@1y8B
*/ (q"S0{
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package com.tot.count; :qXREF@h
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/** 2v?#r"d
* z@[n?t!7k
* @author &}gH!5L m
*/ 7OZ0;fK
public class CountBean { S@\&^1;4Hv
private String countType; a&)$s;
int countId; 5'Mw{`
/** Creates a new instance of CountData */ eJOo~HIWQ
public CountBean() {} ;rJ#>7K
public void setCountType(String countTypes){ }2y"F@{T
this.countType=countTypes; `5t~
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} {KqW<X6Hp
public void setCountId(int countIds){ =aT8=ihP
this.countId=countIds; vO{[P#L}
} k:s86q
public String getCountType(){ AxJf\B8
return countType; :v-,-3AG
} USf;}F:-C
public int getCountId(){ K<ldl.
return countId; _#U hXXD
} My9fbT
} Z;U\h2TY
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CountCache.java imS&N.*3m
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/* 5PHAd4=bJ
* CountCache.java x JzO?a'
* h1_KZ[X
* Created on 2007年1月1日, 下午5:01 G_p13{"IM
* @n=FSn6c
* To change this template, choose Tools | Options and locate the template under Xo4K!U>TzZ
* the Source Creation and Management node. Right-click the template and choose yw?UA
* Open. You can then make changes to the template in the Source Editor. nG5:H.)
*/ EJrQ9"x&n
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package com.tot.count; BI)$aR
import java.util.*; -,xsUw4
/** 9%uJ:c?
* 2ap0/l[
* @author 0j~C6vp
*/ oY%NDTVN
public class CountCache { R75np^
public static LinkedList list=new LinkedList(); {wfe!f
/** Creates a new instance of CountCache */ G0h7MO%x
public CountCache() {} ;-sF%c
public static void add(CountBean cb){ ?Da!QH
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if(cb!=null){ C@
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list.add(cb); {Uu|NA87Cd
} Y_&