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: +-|D$@8S
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CountBean.java vX'@we7Q{
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/* pNHO;N[&
* CountData.java >^ E
* kr_!AW<.tz
* Created on 2007年1月1日, 下午4:44 njk1x
* y.LJ5K$&a
* To change this template, choose Tools | Options and locate the template under xGzp}
* the Source Creation and Management node. Right-click the template and choose ;8G( l
* Open. You can then make changes to the template in the Source Editor. LD~s@}yH>
*/ --~m{qmy
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package com.tot.count; NB z3j
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/** x*9CK8o=
* AxN.k
* @author 0V:DeX$bZ
*/ B f_oIc
public class CountBean { :jFKTG
private String countType; !"dbK'jb^
int countId; SQZUkKfb
/** Creates a new instance of CountData */ -%U 15W;
public CountBean() {} % 1+\N
public void setCountType(String countTypes){ iE|qU_2Y
this.countType=countTypes; S!<1CFh
} =.]>,N`C
public void setCountId(int countIds){ b$24${*'
this.countId=countIds; sp0j2<$a
} CFW\
public String getCountType(){ 2g6G\F
return countType; fCMH<}w
} .=VtMi$n
public int getCountId(){ 6PS #Zydb
return countId; Ua@rp3fr
} e$E~@{[1)
} (X
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CountCache.java h9McC 3
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/* 86^xq#+Uw
* CountCache.java `FP)-^A8
* Qe!Q
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* Created on 2007年1月1日, 下午5:01 G n_AXN
* da[u@eNrnX
* To change this template, choose Tools | Options and locate the template under uh~/ybR
* the Source Creation and Management node. Right-click the template and choose q>~\w1%}a\
* Open. You can then make changes to the template in the Source Editor. }@*Me+
*/ Y}bJN%M
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package com.tot.count; +7jr ]kP9
import java.util.*; PC| U]
/** +P7A`{Ae
* T41&;?-
* @author ;BEg"cm
*/ m\h/D7zg
public class CountCache { xb!h?F&
public static LinkedList list=new LinkedList(); r|XNS>V ,$
/** Creates a new instance of CountCache */ <bwsK,C
public CountCache() {} ICD(#m
public static void add(CountBean cb){ {QTrH-C
if(cb!=null){ \}ujSr#<