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: x?KgEcnw2X
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CountBean.java If\u^c
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/* vi4u `
* CountData.java $Eg|Qc-1
* # ,u7lAz
* Created on 2007年1月1日, 下午4:44 wg^#S
* 3^q,'!PfB
* To change this template, choose Tools | Options and locate the template under %'"#X?jk1
* the Source Creation and Management node. Right-click the template and choose <?&GBCe
* Open. You can then make changes to the template in the Source Editor. gHQ[D|zu
*/ ;E(gl$c:
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package com.tot.count; yTz@q>6s-
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/** Sh=E.!
* Um)0jT
* @author :7D&=n )
*/ :t?9$ dL
public class CountBean { C<r7d [
private String countType; {0q;:7Bt
int countId; !(*mcYA*W
/** Creates a new instance of CountData */ sVZb[|zSri
public CountBean() {} NO P~?p
public void setCountType(String countTypes){ 4
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this.countType=countTypes; _J }ce
} -?!|W-}@G=
public void setCountId(int countIds){ n }7DL8
this.countId=countIds; Vpt)?];P
} yX,2`&c
public String getCountType(){ RU,f|hB4
return countType; H4Ca+;
} MxuwEV|^
public int getCountId(){ Nb>|9nu
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return countId; i@6MO'y
} `~WxMY0M
} v!E0/
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CountCache.java p.n]y=o.)
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/* U
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* CountCache.java GfUIF]X
* hmtRs]7
* Created on 2007年1月1日, 下午5:01 f_Y[I:
* F@kOj*5,[
* To change this template, choose Tools | Options and locate the template under IPbdX@FeV
* the Source Creation and Management node. Right-click the template and choose j1N1c~2
* Open. You can then make changes to the template in the Source Editor. n!|K#
*/ jZ7/p ^c5R
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package com.tot.count; XLwbA4ORq
import java.util.*; = PqQJE}
/** uTpKT7t
* HW|c -\tS
* @author b\7-u-
*/ b+'G^!JR
public class CountCache { ^LfCLI9Z
public static LinkedList list=new LinkedList(); { Y|h;@j$
/** Creates a new instance of CountCache */ r6Lb0PzMf
public CountCache() {} .bB_f7TH.
public static void add(CountBean cb){ MnO,Cd6{%d
if(cb!=null){ Fla[YWS
list.add(cb); 8d-; ;V
} Xf:CGR8_
} yH|ucN~k5S
} i`gsT[JQRX
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CountControl.java @~ N:F~
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/* ~B:Lai4"
* CountThread.java *wwLhweQ5W
* ; QR|v
* Created on 2007年1月1日, 下午4:57 j^1T3 +
* ,M>W) TSH
* To change this template, choose Tools | Options and locate the template under %Wom]/&,'
* the Source Creation and Management node. Right-click the template and choose lT@5=ou[
* Open. You can then make changes to the template in the Source Editor. bFVz ;
*/ ( iP,F]
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package com.tot.count; enF.}fo]
import tot.db.DBUtils; ?p. dc~tZ
import java.sql.*; 7FqmT
/** &m5