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: e khx?rz
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CountBean.java cAc>p-y%
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/* V<G=pPC'H
* CountData.java e-e*%
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* Created on 2007年1月1日, 下午4:44 )%]`uj>*[
* w#\*{EN
* 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 u}I\!-EX!v
* Open. You can then make changes to the template in the Source Editor. or]kXefG3
*/ [DO UIR9
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package com.tot.count; \dw*yZ^
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/** D "9Hv3
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* @author .l(t\BfE~
*/ Ud[Zv?tA:
public class CountBean { "] 0sR
private String countType; BX=YS)
int countId; F~tT5?+
/** Creates a new instance of CountData */ SN/
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public CountBean() {} |]8Hh>
public void setCountType(String countTypes){ Y1Qg|U o
this.countType=countTypes; _0(Bx?[h
} Pf?y!dK<
public void setCountId(int countIds){ ^&6'FE
this.countId=countIds; \<K@t=/
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} UN6Du\)]d
public String getCountType(){ ]Uee!-dZ
return countType; r^|AiYI)
} ?go+oS^
public int getCountId(){ }tRY,f
return countId; S.X*)CBB
} 7Ta",S@m
} 8rx"D`{|
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CountCache.java ME%W,B.|"s
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/* :;(zA_-
* CountCache.java 251^>x.R
* DYKJ Vn7w
* Created on 2007年1月1日, 下午5:01 'Bv)UfZ
* 1hn4YcHb
* To change this template, choose Tools | Options and locate the template under amY\1quD|
* the Source Creation and Management node. Right-click the template and choose |p"E0av
* Open. You can then make changes to the template in the Source Editor. ee|i
*/ 1EvK\
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package com.tot.count; #- hYjE5
import java.util.*; \KJ\> 2Y
/** x{';0MkUV
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* @author &hb:~>
*/ Ow\dk^\-G8
public class CountCache { ZH<:YOQ
public static LinkedList list=new LinkedList(); )|?s!rw +
/** Creates a new instance of CountCache */ |nFg"W
public CountCache() {} 8aHs I(
public static void add(CountBean cb){ vS{zLXg
if(cb!=null){ }t^N|I
list.add(cb); k[p7)ec
} ~\^h;A'3
} r-];@
} VaIFE~>E&
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