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转自:http://www.blogjava.net/changedi/archive/2012/04/15/374226.htmlvlist是一种列表的实现。结构如下图:(图来源wikipedia)类似链接表的结构,但是,不是线性的。它的结构基于一种2的幂次扩展,第一个链接节点包含了列表的前一半数... 阅读全文
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1、启动Memcache 常用参数memcached 1.4.3-p 设置端口号(默认不设置为: 11211)-U UDP监听端口 (默认: 11211, 0 时关闭) -l 绑定地址 (默认:所有都允许,无论内外网或者本机更换IP,有安全隐患,若设置为127.0.0.1就只能本机访问)-dduli... 阅读全文
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(Sorry for that click-bait heading. Couldn’t resist ;-) )We’re on a mission. To teach you SQL. But mostly, we want to teach you how to appreciate SQL.... 阅读全文
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Hibernate provides SQL logging out of the box, but such logging only shows prepared statements, and not the actual SQL queries sent to the database.It... 阅读全文
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http://java.dzone.com/articles/performance-tuningFor most typical Spring/Hibernate enterprise applications, the application performance depends almost... 阅读全文