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: sC_UalOC_
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CountBean.java ,l .U^d6>
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/* y!N)@y4
* CountData.java (mIJI,[xn
* lp-Zx[#`}C
* Created on 2007年1月1日, 下午4:44 m%c0#=D
* F}(QKO*
* To change this template, choose Tools | Options and locate the template under aiZo{j<6
* the Source Creation and Management node. Right-click the template and choose 0"psKf'
* Open. You can then make changes to the template in the Source Editor. 4F,Ql"ae(
*/ 4<<bk_7'
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package com.tot.count; u?;Vxh3@|
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/** asN
}
* $>ZP%~O
* @author ,i?!3oLT
*/ hdtnC29$
public class CountBean { KzX
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private String countType; E(!6n= qR
int countId; Z#6~N/b
/** Creates a new instance of CountData */ !LIfeL.4h
public CountBean() {} T#G<?oF
public void setCountType(String countTypes){ - (_e=3$
this.countType=countTypes; M:Y*Tb6w
} )YMlFzYr
public void setCountId(int countIds){
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this.countId=countIds; j'Y"/<
} 04PoBv~g
public String getCountType(){ .k,Jt+
return countType; ,r 2VP\hLh
} )s<WG}
public int getCountId(){ Yuo1'gE+
return countId; ).}k6v[4)
} BU:Ecchbr
} [AX"ne#M*
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CountCache.java /witDu7
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/* 2PR7M.V7
* CountCache.java 6{ +_T
* }u-S j/K
* Created on 2007年1月1日, 下午5:01 Wda\a.bXT
* P"9@8aLB
* To change this template, choose Tools | Options and locate the template under vDW&pF_eI>
* the Source Creation and Management node. Right-click the template and choose 3Wb2p'V7$?
* Open. You can then make changes to the template in the Source Editor. +*_fN ]M
*/ )'!ml
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package com.tot.count; ,t%CK!8
import java.util.*; yMbcFDlBr
/** <Hh5u~
* ;4kx >x*H
* @author te;Ox!B&
*/ )y`TymM[F
public class CountCache { oB0 8
public static LinkedList list=new LinkedList(); ,.oa,sku
/** Creates a new instance of CountCache */ r'd:SaU+
public CountCache() {} <,@H;|mZ
public static void add(CountBean cb){ x'2 ,sE
if(cb!=null){ 4" ,
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list.add(cb); O+o ;aa6
} 4aN+}TkH@G
} P#[IUXtT
} X"k^89y$
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CountControl.java ?UZ$bz
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/* 4\1wyN /}M
* CountThread.java b~/Wnp5
* AJ\VY;m7F
* Created on 2007年1月1日, 下午4:57 D(qHf9
* P(pd0,%i;a
* To change this template, choose Tools | Options and locate the template under ]HyHz9QkL
* the Source Creation and Management node. Right-click the template and choose CO:*x,6au
* Open. You can then make changes to the template in the Source Editor. L{2b0Zh'
*/ ,TF<y#wed
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package com.tot.count; 0):uF_t<
import tot.db.DBUtils; Sf'i{xye
import java.sql.*;
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/** v~V;+S=gz
* d<^_w!4X}
* @author [_
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*/ Lf^5Eo/
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public class CountControl{ (Bt;DM#>
private static long lastExecuteTime=0;//上次更新时间 .'5'0lR5
private static long executeSep=60000;//定义更新间隔时间,单位毫秒 &;ZC<