﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>BlogJava-jbrg2008-最新评论</title><link>http://www.blogjava.net/jbrg2008/CommentsRSS.aspx</link><description>人以铜为镜,可以正衣冠;以古为镜,可以见兴替;以人为镜,可以知得失.</description><language>zh-cn</language><pubDate>Wed, 09 Jan 2008 00:18:39 GMT</pubDate><lastBuildDate>Wed, 09 Jan 2008 00:18:39 GMT</lastBuildDate><generator>cnblogs</generator><item><title>re: Dao类中的方法是写成static好,还是实例方法好?[未登录]</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/07/172354.html#173330</link><dc:creator>Paul Lin</dc:creator><author>Paul Lin</author><pubDate>Mon, 07 Jan 2008 05:49:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/07/172354.html#173330</guid><description><![CDATA[你可以去看看JAVA中关于JDBC的API设计就知道了。其实DAO中操作最费时的是在数据库的连接打开和关闭，如果采用连接池的话因为具有了缓存功能，所以开销可以大大减少。<br><br>此外SQL执行的速度还与你的SQL写法，是否采用了预编译语句，是否采用了变量绑定、Oracle的SQL共享池有关。<br><br>如果为了贪图一是方便而使用static的话，除了会造成多线程下的混乱之外，你的方法里面将不能使用任何对对象的方法和变量的引用，这会影响到其它方法和变量的定义。<br><br><br>BTW:<br>BS二楼的回复，为什么说“随便怎么都行，反正都是做垃圾项目，问这么多干嘛 ”，负责任是一个IT人最基本的素质之一，不敢想象你的项目如果是“随便做”的话是什么后果，“垃圾项目”都做不好还能做什么<br><br>三楼的回复更加令人莫名其妙，问问题会影响项目进度？这是那本书或那个人说的。是问问题影响项目进度还是等出问题了再问会影响项目进度？<img src ="http://www.blogjava.net/jbrg2008/aggbug/173330.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">Paul Lin</a> 2008-01-07 13:49 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/07/172354.html#173330#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: J2SE综合－－Java能替代C语言的可能性</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/07/172899.html#173255</link><dc:creator>jeasonzhao</dc:creator><author>jeasonzhao</author><pubDate>Mon, 07 Jan 2008 02:19:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/07/172899.html#173255</guid><description><![CDATA[替代和不可替代的前提是环境的等同，如果环境等同了，C也可以替代JAVA，原因很简单，JAVA能够完成的东西，C也可以，反之亦然，这种话题拿来打仗不错<img src ="http://www.blogjava.net/jbrg2008/aggbug/173255.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">jeasonzhao</a> 2008-01-07 10:19 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/07/172899.html#173255#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: Dao类中的方法是写成static好,还是实例方法好?</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/07/172354.html#173252</link><dc:creator>jeasonzhao</dc:creator><author>jeasonzhao</author><pubDate>Mon, 07 Jan 2008 02:17:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/07/172354.html#173252</guid><description><![CDATA[哪样好用用哪样，模式只是一个建议，不是一个实证<img src ="http://www.blogjava.net/jbrg2008/aggbug/173252.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">jeasonzhao</a> 2008-01-07 10:17 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/07/172354.html#173252#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: Dao类中的方法是写成static好,还是实例方法好?</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/06/172354.html#173081</link><dc:creator>tt</dc:creator><author>tt</author><pubDate>Sat, 05 Jan 2008 17:23:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/06/172354.html#173081</guid><description><![CDATA[你问这个，难道不会影响项目进度吗？<img src ="http://www.blogjava.net/jbrg2008/aggbug/173081.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">tt</a> 2008-01-06 01:23 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/06/172354.html#173081#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: Dao类中的方法是写成static好,还是实例方法好?</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/06/172354.html#173080</link><dc:creator>tt</dc:creator><author>tt</author><pubDate>Sat, 05 Jan 2008 17:22:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/06/172354.html#173080</guid><description><![CDATA[随便怎么都行，反正都是做垃圾项目，问这么多干嘛<img src ="http://www.blogjava.net/jbrg2008/aggbug/173080.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">tt</a> 2008-01-06 01:22 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/06/172354.html#173080#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: JAVA魔法数值</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/03/171997.html#172481</link><dc:creator>wdlfellow</dc:creator><author>wdlfellow</author><pubDate>Thu, 03 Jan 2008 06:34:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/03/171997.html#172481</guid><description><![CDATA[顶一下！<img src ="http://www.blogjava.net/jbrg2008/aggbug/172481.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">wdlfellow</a> 2008-01-03 14:34 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/03/171997.html#172481#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>re: Dao类中的方法是写成static好,还是实例方法好?</title><link>http://www.blogjava.net/jbrg2008/archive/2008/01/03/172354.html#172480</link><dc:creator>wdlfellow</dc:creator><author>wdlfellow</author><pubDate>Thu, 03 Jan 2008 06:33:00 GMT</pubDate><guid>http://www.blogjava.net/jbrg2008/archive/2008/01/03/172354.html#172480</guid><description><![CDATA[<br>我觉得可以使用单态对象<img src ="http://www.blogjava.net/jbrg2008/aggbug/172480.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.blogjava.net/jbrg2008/" target="_blank">wdlfellow</a> 2008-01-03 14:33 <a href="http://www.blogjava.net/jbrg2008/archive/2008/01/03/172354.html#172480#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>