<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[归零]]></title><description><![CDATA[一切从零开始……]]></description><link>https://blog.youkuaiyun.com/backzero</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; backzero]]></copyright><item><title><![CDATA[IOPS]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/72758102</link><guid>https://blog.youkuaiyun.com/backzero/article/details/72758102</guid><author>backzero</author><pubDate>Thu, 25 May 2017 21:42:28 +0800</pubDate><description><![CDATA[计算磁盘IOPS的三个因素：

 

1、RAID类型的读写比

 

不同RAID类型的IOPS计算公式：





RAID类型



公式




RAID5、RAID3


Drive IOPS=Read IOPS + 4*Write IOPS




RAID6


Drive IOPS=Read IOPS +  6*W]]></description><category></category></item><item><title><![CDATA[浅谈web网站架构演变过程]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/69055271</link><guid>https://blog.youkuaiyun.com/backzero/article/details/69055271</guid><author>backzero</author><pubDate>Tue, 04 Apr 2017 08:12:45 +0800</pubDate><description><![CDATA[浅谈web网站架构演变过程 http://www.cnblogs.com/junneyang/p/5231849.html

 



前言
　　
　　我们以javaweb为例，来搭建一个简单的电商系统，看看这个系统可以如何一步步演变。
 
　　该系统具备的功能：
 


用户模块：用户注册和管理商品模块：商品展示和管理交易模块：创建交易和管理
  


阶段一]]></description><category></category></item><item><title><![CDATA[Tomcat启动重复执行问题]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/60325557</link><guid>https://blog.youkuaiyun.com/backzero/article/details/60325557</guid><author>backzero</author><pubDate>Sat, 04 Mar 2017 13:59:22 +0800</pubDate><description><![CDATA[在eclipse执行tomcat只执行一次，而独立运行tomcat却重复执行，问题及解决方法见http://jingyan.baidu.com/article/48206aeaf9422e216ad6b39b.html，配置文件appBase与docBase的问题。]]></description><category></category></item><item><title><![CDATA[MYSQL5.7配置遇到问题]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/53079802</link><guid>https://blog.youkuaiyun.com/backzero/article/details/53079802</guid><author>backzero</author><pubDate>Tue, 08 Nov 2016 10:43:08 +0800</pubDate><description><![CDATA[[mysqld] 
basedir=C:\Program Files\MySQL\MySQL Server 5.6（mysql所在目录） 
datadir=C:\Program Files\MySQL\MySQL Server 5.6\data （mysql所在目录\data）

1、使用管理员权限在bin/mysqld install安装成功后，再bin/net start mysql失]]></description><category></category></item><item><title><![CDATA[spring mvc文件下载]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/51567407</link><guid>https://blog.youkuaiyun.com/backzero/article/details/51567407</guid><author>backzero</author><pubDate>Thu, 02 Jun 2016 15:17:17 +0800</pubDate><description><![CDATA[http://blog.youkuaiyun.com/nohero1/article/details/41476855方法有两种：         比较优雅的       [java] view plain copy@RequestMapping("/export")      public ResponseEntitybyte[]> export() throws IOException {]]></description><category></category></item><item><title><![CDATA[开发问题汇总]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/51497543</link><guid>https://blog.youkuaiyun.com/backzero/article/details/51497543</guid><author>backzero</author><pubDate>Wed, 25 May 2016 12:55:57 +0800</pubDate><description><![CDATA[1、org.springframework.web.multipart.MultipartException
这个错误，一般情况下是传送过来的没有指定form为enctype="multipart/form-data"]]></description><category></category></item><item><title><![CDATA[JQuery操作表单总结（不断总结中……）]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/51433522</link><guid>https://blog.youkuaiyun.com/backzero/article/details/51433522</guid><author>backzero</author><pubDate>Tue, 17 May 2016 09:24:31 +0800</pubDate><description><![CDATA[1、radio
取值使用val()，设置选择使用prop('checked', true)]]></description><category></category></item><item><title><![CDATA[Spring AOP  self-invocation及其他问题汇总]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/50698706</link><guid>https://blog.youkuaiyun.com/backzero/article/details/50698706</guid><author>backzero</author><pubDate>Fri, 19 Feb 2016 16:14:37 +0800</pubDate><description><![CDATA[spring reference中描述：
. It means that self-invocation is not going to result in the advice associated with a method invocation getting a chance to execute.
……
Finally, it must be noted that AspectJ ]]></description><category></category></item><item><title><![CDATA[conversion-service]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/50578293</link><guid>https://blog.youkuaiyun.com/backzero/article/details/50578293</guid><author>backzero</author><pubDate>Mon, 25 Jan 2016 11:24:42 +0800</pubDate><description><![CDATA[Spring-mvc.xsd关于mvc:annotation-driven的conversion-service定义
The bean name of the ConversionService that is to be used for type conversion during field binding. This attribute is not required, and only]]></description><category></category></item><item><title><![CDATA[Method Parameters And Type Conversion]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/50577283</link><guid>https://blog.youkuaiyun.com/backzero/article/details/50577283</guid><author>backzero</author><pubDate>Mon, 25 Jan 2016 10:08:17 +0800</pubDate><description><![CDATA[String-based values extracted from the request including request parameters, path variables, request headers, and cookie values may need to be converted to the target type of the method parameter or f]]></description><category></category></item><item><title><![CDATA[Spring的容器配置文件问题]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/50545231</link><guid>https://blog.youkuaiyun.com/backzero/article/details/50545231</guid><author>backzero</author><pubDate>Tue, 19 Jan 2016 22:16:33 +0800</pubDate><description><![CDATA[spring reference4.2 21章有详细介绍，关于context的，网络上的一切关于spring mvc action类AOP失效，配置文件问题，都是源于这个，仔细阅读，茅塞顿开，恍然大悟。



It is also possible to have just one root context for single DispatcherServlet scenarios.也可]]></description><category></category></item><item><title><![CDATA[win2012 64位系统 iis8支持32位数据库]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/46494345</link><guid>https://blog.youkuaiyun.com/backzero/article/details/46494345</guid><author>backzero</author><pubDate>Sun, 14 Jun 2015 20:58:05 +0800</pubDate><description><![CDATA[配置iis8网站始终无法正常访问，asp动态内容无法显示，思索一下，或许是数据库问题，在网络搜索了一下，原来开发的网站数据库是32位的，在64位上要设置一下。]]></description><category></category></item><item><title><![CDATA[windows8.1键盘失灵]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/42463643</link><guid>https://blog.youkuaiyun.com/backzero/article/details/42463643</guid><author>backzero</author><pubDate>Tue, 06 Jan 2015 19:32:31 +0800</pubDate><description><![CDATA[win8.1时不时键盘就会失效，解决办法：
使用屏幕键盘进入系统，打开设备管理器
1、PS/2兼容鼠标 黄叹号，卸载驱动，然后刷新
2、HID-compliant mouse黄叹号
win+r输入regedit进入注册表，找到
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E96B-E325-11CE-BFC]]></description><category></category></item><item><title><![CDATA[交换机配置]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/39083771</link><guid>https://blog.youkuaiyun.com/backzero/article/details/39083771</guid><author>backzero</author><pubDate>Fri, 05 Sep 2014 18:35:12 +0800</pubDate><description><![CDATA[Quidway S2326TP-EI
一、忘记密码 恢复出厂
方法1]]></description><category></category></item><item><title><![CDATA[Eclipse+intelliJ idea等编辑器使用技巧(不断更新)]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/24906665</link><guid>https://blog.youkuaiyun.com/backzero/article/details/24906665</guid><author>backzero</author><pubDate>Sat, 03 May 2014 10:22:39 +0800</pubDate><description><![CDATA[一、Eclipse


二、IntelliJ idea
1、Ctrl+F12Kua]]></description><category></category></item><item><title><![CDATA[IntelliJ IDEA如何在Gradle项目中支持Web Application]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/24815501</link><guid>https://blog.youkuaiyun.com/backzero/article/details/24815501</guid><author>backzero</author><pubDate>Wed, 30 Apr 2014 22:34:05 +0800</pubDate><description><![CDATA[Enabling Web Application Support

Next |
See Also
Some features described here are available in Ultimate edition only.




The dedicated Web facet provides facilities for developing Web appli]]></description><category></category></item><item><title><![CDATA[Hadoop权威指南读书笔记（更新中）]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/22863287</link><guid>https://blog.youkuaiyun.com/backzero/article/details/22863287</guid><author>backzero</author><pubDate>Thu, 03 Apr 2014 13:44:18 +0800</pubDate><description><![CDATA[从今天开始，除了Spring之外，研究大数据之Hadoop，着手从Hadoop:The Definitive Guide开始入手，先看看中文版的第二版，如果有时间再看看英文版的第三版吧。
1、首先虚拟机架设CentOS 6.5 64位，安装Java 1.8.0(java 8) 64位
2、依次下载书中实例和所需软件
http://hadoopbook.com/里有相关实例和数据下载，实例版本]]></description><category></category></item><item><title><![CDATA[Eclipse+Gradle]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/22774827</link><guid>https://blog.youkuaiyun.com/backzero/article/details/22774827</guid><author>backzero</author><pubDate>Wed, 02 Apr 2014 07:06:58 +0800</pubDate><description><![CDATA[1、所需软件
（1）Eclipse
（2）Spring Tool Suite(STS)
（3）Gradle http://www.gradle.org/
2、安装完Eclipse和STS，以及配置Gradle(GRADLE_HOME和PATH)之后，运行Gradle -v，查看Gradle版本。
3、目录组织如下：
项目根目录
|——src
        |——main]]></description><category></category></item><item><title><![CDATA[CentOS安装播放视频软件mplayer]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/22419191</link><guid>https://blog.youkuaiyun.com/backzero/article/details/22419191</guid><author>backzero</author><pubDate>Fri, 28 Mar 2014 18:40:04 +0800</pubDate><description><![CDATA[为了能随时学习视频教育孩子，在老笔记本上安装了CentOS6，之后就是安装播放视频的软件mplayer。
（1）加入 RPMforge 软件库
           sudo rpm -Uhv http://tree.repoforge.org/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.i686.rpm]]></description><category></category></item><item><title><![CDATA[windows8.1 ssd优化]]></title><link>https://blog.youkuaiyun.com/backzero/article/details/21277213</link><guid>https://blog.youkuaiyun.com/backzero/article/details/21277213</guid><author>backzero</author><pubDate>Sat, 15 Mar 2014 10:43:14 +0800</pubDate><description><![CDATA[1、4K对齐
2、fsutil behavior query disabledeletenotify检查trim指令
3、SSD
 Life监控
4、去除虚拟内存
5、关闭磁盘索引
6、取消系统保护
7、关闭磁盘整理计划
8、关闭休眠
 管理员cmd powercfg-h off
9、关闭Prefetch(预取)和Superfetch(超级预取)
  （1）进入注册表，找到H]]></description><category></category></item></channel></rss>