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: >5!/&D.q
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CountBean.java -?Aa RwZ,
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/* tHo0q<.oX
* CountData.java 5`3f"(ay/
* %1p4K)
* Created on 2007年1月1日, 下午4:44 |uE_aFQs
* Pf]O'G&F
* To change this template, choose Tools | Options and locate the template under 4MOA}FZ~
* the Source Creation and Management node. Right-click the template and choose PX1Scvi
* Open. You can then make changes to the template in the Source Editor. 1yIo'i1
*/ 6uH1dsD
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package com.tot.count; o )
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/** y|+ltA K
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* @author v1j]&3O
*/ >MIp r
public class CountBean { 'D4KaM.d
private String countType; <#9zc'ED:
int countId; /@bLc1"
/** Creates a new instance of CountData */ K!9rH>`\
public CountBean() {} |V|)cPQ
public void setCountType(String countTypes){ d4P0f'.z
this.countType=countTypes; 5}4MXI4
} %KmB>9
public void setCountId(int countIds){ _(\\>'1q!
this.countId=countIds; |KFWW
} Ueyt}44.e2
public String getCountType(){ Q nqU!6k@
return countType; 4l?98
} _u :4y4}
public int getCountId(){ ZN ?P4#ZS
return countId; s
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} ]&ptld;
} uXNf)?MpA
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CountCache.java Vy:ER
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/* NW9k.D%
* CountCache.java 'ga1SbA]
* IfZaK([
* Created on 2007年1月1日, 下午5:01 +Hb6j02#
* G\H@lFh
* To change this template, choose Tools | Options and locate the template under
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* the Source Creation and Management node. Right-click the template and choose (t9qwSS8z
* Open. You can then make changes to the template in the Source Editor. {fMrx1
*/ 'ej{B0rE
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package com.tot.count; *3<m<<>U
import java.util.*; FJ}QKDQW=
/** G<