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: *7 >K" j
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CountBean.java 00@y,V_]
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/* < 5#}EiT5
* CountData.java { Sn
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* Created on 2007年1月1日, 下午4:44 Oe}6jcb6&
* <3c|S_|L*m
* To change this template, choose Tools | Options and locate the template under 2:& [r*
* the Source Creation and Management node. Right-click the template and choose 2u'h,on?
* Open. You can then make changes to the template in the Source Editor. j4.deQ,
*/ p=8?hI/bim
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package com.tot.count; ~gvw6e*[
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/** :HG5{zP
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* @author &c1zEgl
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public class CountBean { | WMq&-$D
private String countType; 0^rDf
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int countId; QAh6!<.;@
/** Creates a new instance of CountData */ t.WWahNyY
public CountBean() {} t@\op}Z-M
public void setCountType(String countTypes){ %{M&"M v
this.countType=countTypes; :0RfA%
} yjxv D
public void setCountId(int countIds){ Gfn?1Kt{
this.countId=countIds; )s4a<Sc]
} z gDc=
public String getCountType(){ knJoVo]
return countType; 9N]V F'
} o2M4?}TpIV
public int getCountId(){ Y:}!W
return countId; |VD}:
} >
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CountCache.java ",qJG]_ <
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/* "FT(U{^7d
* CountCache.java JgY#W1>
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* Created on 2007年1月1日, 下午5:01 &*wc` U
* Zm!5X9^!
* To change this template, choose Tools | Options and locate the template under :=K <2
* the Source Creation and Management node. Right-click the template and choose byUstm6y
* Open. You can then make changes to the template in the Source Editor. 1#<KZN =$
*/ VaRP+J}UA.
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package com.tot.count; L cpz(W^
import java.util.*; Y^@Nvt$<K
/** R3=]Av46
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* @author ![*7HE>},
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public class CountCache { " ~&d=f0m
public static LinkedList list=new LinkedList(); {)d{:&*K.
/** Creates a new instance of CountCache */ k3wAbGp
public CountCache() {} v}AVIdR
public static void add(CountBean cb){ +sc--e?
if(cb!=null){ wO
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list.add(cb); Zr.6J*&