<![CDATA[nightmare23的专栏]]>https://blog.youkuaiyun.com/nightmare23zh-cnhttps://blog.youkuaiyun.com/<![CDATA[项目经验教训总结（教育软件）]]>https://blog.youkuaiyun.com/nightmare23/article/details/8295542https://blog.youkuaiyun.com/nightmare23/article/details/8295542nightmare23Fri, 14 Dec 2012 15:32:14 +0800<![CDATA[谈谈大型高并发高负载网站的系统架构（转）]]>https://blog.youkuaiyun.com/nightmare23/article/details/6796002https://blog.youkuaiyun.com/nightmare23/article/details/6796002nightmare23Wed, 21 Sep 2011 09:44:37 +0800<![CDATA[mysqldump 备份数据库命令]]>https://blog.youkuaiyun.com/nightmare23/article/details/6579584https://blog.youkuaiyun.com/nightmare23/article/details/6579584nightmare23Fri, 01 Jul 2011 15:19:00 +0800 /tmp/techcom.sql]]><![CDATA[javascript 正则表达式 验证email]]>https://blog.youkuaiyun.com/nightmare23/article/details/6393949https://blog.youkuaiyun.com/nightmare23/article/details/6393949nightmare23Wed, 04 May 2011 14:33:00 +0800<![CDATA[Struts2获取request的方法]]>https://blog.youkuaiyun.com/nightmare23/article/details/6293819https://blog.youkuaiyun.com/nightmare23/article/details/6293819nightmare23Fri, 01 Apr 2011 11:25:00 +0800Struts2获取request的方法
 
 
在Action中获取request方法一：
在Action中的代码：
Map request = (Map)ActionContext.getContext().get("request");
List tasks = taskManager.findAll();
request.put("tasks", tasks);
在JSP页面中获取其中的值：
<![CDATA[Hibernate使用hbm2ddl创建或更新数据库表]]>https://blog.youkuaiyun.com/nightmare23/article/details/6291792https://blog.youkuaiyun.com/nightmare23/article/details/6291792nightmare23Thu, 31 Mar 2011 15:20:00 +0800<![CDATA[Hibernate使用Annotations映射数据库]]>https://blog.youkuaiyun.com/nightmare23/article/details/6291742https://blog.youkuaiyun.com/nightmare23/article/details/6291742nightmare23Thu, 31 Mar 2011 15:05:00 +0800安装 Hibernate Annotations
 
为了使用Hibernate Annotations,你需要最新的Hibernate 3.2 ,当然还有Java 5 你可以在Hibernate web site 这个网站下载Hibernate 3.2和Hibernate Annotations库.除了标准的Hibernate 库文件和必须的依赖库之外,还需要下载 Hibernate Annotations库和Java 持久化API ---ejb3-persstence.j]]><![CDATA[Hibernate三种状态的区分，以及save,update,saveOrUpdate,merge等的使用]]>https://blog.youkuaiyun.com/nightmare23/article/details/6286696https://blog.youkuaiyun.com/nightmare23/article/details/6286696nightmare23Tue, 29 Mar 2011 17:17:00 +0800Hibernate的对象有3种状态，分别为：瞬时态(Transient)、 持久态(Persistent)、脱管态(Detached)。处于持久态的对象也称为PO(Persistence Object)，瞬时对象和脱管对象也称为VO（Value Object）。
瞬时态
由new命令开辟内存空间的java对象，
eg. Person person = new Person("xxx", "xx");
如果没有变量对该对象进行引用，它将被java虚拟机回]]><![CDATA[ognl访问ValueStack、Action]]>https://blog.youkuaiyun.com/nightmare23/article/details/6273656https://blog.youkuaiyun.com/nightmare23/article/details/6273656nightmare23Thu, 24 Mar 2011 11:31:00 +0800

Test OGNL access ValueStack or Action

ognl访问valuestack对象：

ognl访问valuestack对象的方法：

ognl访问值栈中action的普通方法: <![CDATA[log4j不同级别的log写到不同的文件中]]>https://blog.youkuaiyun.com/nightmare23/article/details/6261075https://blog.youkuaiyun.com/nightmare23/article/details/6261075nightmare23Sat, 19 Mar 2011 14:44:00 +0800只需要将property文件分类如下配置即可。
 
log4j.rootLogger=console,info,warn,debug

log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.Encodi]]><![CDATA[Log4j日志 配置]]>https://blog.youkuaiyun.com/nightmare23/article/details/6260982https://blog.youkuaiyun.com/nightmare23/article/details/6260982nightmare23Sat, 19 Mar 2011 13:47:00 +08001、配置根Logger:
log4j.rootLogger = [ level ] , appenderName, appenderName2
level：日志的级别，指定这条日志信息的重要性。分为ALL < DEBUG < INFO < WARN 一般常用的为

DEBUG ， INFO ，WARN ，ERROR四种，分别对应Logger类的四种方法
debug(Object message ) ;
info]]><![CDATA[Log4j日志级别]]>https://blog.youkuaiyun.com/nightmare23/article/details/6260976https://blog.youkuaiyun.com/nightmare23/article/details/6260976nightmare23Sat, 19 Mar 2011 13:43:00 +0800<![CDATA[Eclipse 常用快捷键]]>https://blog.youkuaiyun.com/nightmare23/article/details/6257499https://blog.youkuaiyun.com/nightmare23/article/details/6257499nightmare23Thu, 17 Mar 2011 22:44:00 +0800