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: ?8vjHEE
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CountBean.java (v(_XlMK
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/* zxwpS
* CountData.java A3 j>R477A
* 5{cAawU.
* Created on 2007年1月1日, 下午4:44 qZ8lU
* rV2}> k
* To change this template, choose Tools | Options and locate the template under GI6 EZ}.MZ
* the Source Creation and Management node. Right-click the template and choose B_}=v$
* Open. You can then make changes to the template in the Source Editor. bM;tQ38*
*/ /dWuHS
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package com.tot.count; a&Z|3+ZA
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/** 94K;=5h
* (y(V,kXwa8
* @author TXrC5AJx
*/ ](8XC_-U'
public class CountBean { s'/.eaV_
private String countType; S:^Q(w7
int countId; 4I,@aj46
/** Creates a new instance of CountData */ }m0Lr:vq<r
public CountBean() {} M5P63=1+
public void setCountType(String countTypes){ FIG5]u
this.countType=countTypes; w(mn@Qc
} FK
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public void setCountId(int countIds){ %\5y6
this.countId=countIds; eZg31.
} cl)MI,/>
public String getCountType(){ /md`tqI>i<
return countType; u6 B (f;
} &,KxtlR![
public int getCountId(){ urtcSq&H'
return countId; CWC*bkd5a
} UbMcXH8=F
} xFyMg&
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CountCache.java #2cH.`ty
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/* >n` OLHg;
* CountCache.java [a+?z6qI\}
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* Created on 2007年1月1日, 下午5:01 b*p,s9k7
* av`b8cGg
* To change this template, choose Tools | Options and locate the template under zb;2xTH+
* the Source Creation and Management node. Right-click the template and choose ;q$<]X_S)}
* Open. You can then make changes to the template in the Source Editor. 6] <?+#uQ
*/ J'B;
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package com.tot.count; \&e+f#!u
import java.util.*; CTPn'P=\C
/** c/g(=F__[
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* @author *w@>zkBl
*/ E]ZM`bex&
public class CountCache { G&