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: `4&a"`&$
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CountBean.java Z,? T`[4B
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/* E>|xv#:~DV
* CountData.java }+" N
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* Created on 2007年1月1日, 下午4:44 gO E3x^X*{
* C Q(;L{}
* To change this template, choose Tools | Options and locate the template under HoFFce7o
* the Source Creation and Management node. Right-click the template and choose .ZB/!WiF
* Open. You can then make changes to the template in the Source Editor. dp&bcR)
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package com.tot.count; 5 GwXZ;(G
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/** T9N&Nh7 3
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* @author E@f2hW2
*/ e/h2E dY
public class CountBean { dV5a Ij
private String countType; HifU65"8
int countId; H,?)6pZ
/** Creates a new instance of CountData */ W/U_:^[-
public CountBean() {} Q]?Lg
public void setCountType(String countTypes){ U;QN+fF]u
this.countType=countTypes; =>PBdW
} xEA%UFB.!G
public void setCountId(int countIds){ )k@+8Yfa1p
this.countId=countIds; ,w+}Evp])
} ~[|zf*ZISG
public String getCountType(){ NWGSUUa
return countType; Gob;dku
} [\j@_YYd
public int getCountId(){ q0}?F
return countId; hKT ]M[Pv
} 6Wos6_
} d^&F%)AT
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CountCache.java t;Rdrk
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/* /$IF!q+C
* CountCache.java .Y.{j4[LQ
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* Created on 2007年1月1日, 下午5:01 )6S;w7
* x bG'![OX
* To change this template, choose Tools | Options and locate the template under ^GXy:S$
* the Source Creation and Management node. Right-click the template and choose Z UvA`
* Open. You can then make changes to the template in the Source Editor. 3b_tK^|'
*/ [ imC21U
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package com.tot.count; (okCZ-_Jn
import java.util.*; %^L:K5V
/** !U,^+"l'GP
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* @author W~1/vJ.*l
*/ ~IHjj1s
public class CountCache { xHml"Y1
public static LinkedList list=new LinkedList(); mGQgy[gX
/** Creates a new instance of CountCache */ Oc;/'d2
public CountCache() {} +s6wF{
public static void add(CountBean cb){ CqXD z
if(cb!=null){ -%XvWZvZ
list.add(cb); ASuxty
} s$Il;
} ZCQ7xQD
} ]Q\Ogfjp
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CountControl.java ILUA'T=B0
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/* +$ )C KC
* CountThread.java J&{qe@^
* IJ^KYho
* Created on 2007年1月1日, 下午4:57 p}KZ#"Q
* r)|X?
* To change this template, choose Tools | Options and locate the template under 5Wj+ey^^w
* the Source Creation and Management node. Right-click the template and choose \TG!M]D:
* Open. You can then make changes to the template in the Source Editor.
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*/ _nR8L`l*z
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package com.tot.count; 4z-sR/ d
import tot.db.DBUtils; 47_4`rzy;
import java.sql.*; K!?T7/@
/** e~r%8.Wm
* lrjlkgSN
* @author Q? a&