https://blog.youkuaiyun.com/jlh2zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/jlh2/article/details/8624077https://blog.youkuaiyun.com/jlh2/article/details/8624077jlh2Thu, 28 Feb 2013 22:25:41 +0800https://blog.youkuaiyun.com/jlh2/article/details/8306544https://blog.youkuaiyun.com/jlh2/article/details/8306544jlh2Mon, 17 Dec 2012 11:21:32 +0800https://blog.youkuaiyun.com/jlh2/article/details/8152172https://blog.youkuaiyun.com/jlh2/article/details/8152172jlh2Tue, 06 Nov 2012 11:41:18 +0800https://blog.youkuaiyun.com/jlh2/article/details/8123542https://blog.youkuaiyun.com/jlh2/article/details/8123542jlh2Mon, 29 Oct 2012 11:25:01 +0800https://blog.youkuaiyun.com/jlh2/article/details/7732421https://blog.youkuaiyun.com/jlh2/article/details/7732421jlh2Tue, 10 Jul 2012 13:22:16 +0800https://blog.youkuaiyun.com/jlh2/article/details/7644352https://blog.youkuaiyun.com/jlh2/article/details/7644352jlh2Fri, 08 Jun 2012 10:17:08 +0800https://blog.youkuaiyun.com/jlh2/article/details/6927422https://blog.youkuaiyun.com/jlh2/article/details/6927422jlh2Wed, 02 Nov 2011 10:15:02 +0800mvn archetype:create -DgroupId=ce.demo.mvn-DartifactId=webapp          -Darch]]>https://blog.youkuaiyun.com/jlh2/article/details/6924802https://blog.youkuaiyun.com/jlh2/article/details/6924802jlh2Tue, 01 Nov 2011 14:17:35 +0800External Tools->External Tools ...在左边选择Program，再点New： 配置Location为mvn]]>https://blog.youkuaiyun.com/jlh2/article/details/6885632https://blog.youkuaiyun.com/jlh2/article/details/6885632jlh2Tue, 18 Oct 2011 18:14:15 +0800https://blog.youkuaiyun.com/jlh2/article/details/6885119https://blog.youkuaiyun.com/jlh2/article/details/6885119jlh2Tue, 18 Oct 2011 16:22:53 +0800https://blog.youkuaiyun.com/jlh2/article/details/6729108https://blog.youkuaiyun.com/jlh2/article/details/6729108jlh2Mon, 29 Aug 2011 13:51:36 +0800https://blog.youkuaiyun.com/jlh2/article/details/6445617https://blog.youkuaiyun.com/jlh2/article/details/6445617jlh2Wed, 25 May 2011 18:00:00 +0800 转自http://nomandia.javaeye.com/blog/383442
Maven command learning. 关键字: maven 命令学习笔记
一、安装Maven并设定环境变量
首先到 http://maven.apache.org  去下一个maven最新的安装包，比如2.0.8，随便解压到一个目录，假设 C:/mvn208。
 
然后设定环境变量：
 
SET M2_HOME=%ins]]>https://blog.youkuaiyun.com/jlh2/article/details/6289189https://blog.youkuaiyun.com/jlh2/article/details/6289189jlh2Wed, 30 Mar 2011 16:21:00 +0800
用openssl，Linux上自带。常用命令如下：
--生成RSA私钥（传统格式的）
openssl genrsa -out rsa_private_key.pem 1024
--将传统格式的私钥转换成PKCS#8格式的
openssl pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM -nocrypt
--生成RSA公钥
openssl rsa -]]>https://blog.youkuaiyun.com/jlh2/article/details/6286369https://blog.youkuaiyun.com/jlh2/article/details/6286369jlh2Tue, 29 Mar 2011 16:00:00 +0800  多表连接必须杜绝使用select *
  单表连接，一般情况不建议使用select *，但是如果出现以下情况，必须禁用：
  1）表中包含lob字段（BLOB,CLOB,LONG,RAW等）
  2）表中包含长度较大的字段，如varchar2(1000)以上的字段，但该SQL实际并不需要取出该字段的值
  3）字段数量较多，但实际使用的字段很少，比如表有50个字段，而实际需要使用的只有5个，并且该SQL没有被重用2.严格]]>https://blog.youkuaiyun.com/jlh2/article/details/6042474https://blog.youkuaiyun.com/jlh2/article/details/6042474jlh2Mon, 29 Nov 2010 12:39:00 +0800Lucene是一个基于Java的全文索引工具包。 基于Java的全文索引引擎Lucene简介：关于作者和Lucene的历史 全文检索的实现：Luene全文索引和数据库索引的比较 中文切分词机制简介：基于词库和自动切分词算法的比较 具体的安装和使用简介：系统结构介绍和演示 Hacking Lucene：简化的查询分析器，删除的实现，定制的排序，应用接口的扩展 从Lucene我们还可以学到什么 另外，如果是在选择全文引擎，现在也许是试试Sphinx的时候了：相比Lucene速度更快，有中文分词的支持]]>https://blog.youkuaiyun.com/jlh2/article/details/5481825https://blog.youkuaiyun.com/jlh2/article/details/5481825jlh2Tue, 13 Apr 2010 16:41:00 +0800https://blog.youkuaiyun.com/jlh2/article/details/5268226https://blog.youkuaiyun.com/jlh2/article/details/5268226jlh2Fri, 29 Jan 2010 10:24:00 +0800https://blog.youkuaiyun.com/jlh2/article/details/5266253https://blog.youkuaiyun.com/jlh2/article/details/5266253jlh2Thu, 28 Jan 2010 17:35:00 +0800https://blog.youkuaiyun.com/jlh2/article/details/5212499https://blog.youkuaiyun.com/jlh2/article/details/5212499jlh2Tue, 19 Jan 2010 12:41:00 +0800https://blog.youkuaiyun.com/jlh2/article/details/4840598https://blog.youkuaiyun.com/jlh2/article/details/4840598jlh2Fri, 20 Nov 2009 12:04:00 +0800