<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[250°灰]]></title><description><![CDATA[Terminal]]></description><link>https://blog.youkuaiyun.com/li627263113</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; li627263113]]></copyright><item><title><![CDATA[LRU算法-LinkedHashMap]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/100562024</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/100562024</guid><author>li627263113</author><pubDate>Thu, 05 Sep 2019 17:20:18 +0800</pubDate><description><![CDATA[通过LinkedHashMap实现LRU算法

...]]></description><category></category></item><item><title><![CDATA[docker  dockerfile构建基础镜像 jdk8-tomcat7]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/98063796</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/98063796</guid><author>li627263113</author><pubDate>Thu, 01 Aug 2019 15:36:58 +0800</pubDate><description><![CDATA[Dockerfile文件内容：
#使用基础空镜像
FROM scratch
#作者信息
MAINTAINER doublesguns "lz_mic2016@outlook.com"
#创建目录
RUN mkdir -p /usr/local/java1.8
#把当前目录下的jdk文件夹添加到镜像
ADD jdk8 /usr/local/java1.8

RUN mkdir -p /usr/loc...]]></description><category></category></item><item><title><![CDATA[centos升级内核版本]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/97933495</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/97933495</guid><author>li627263113</author><pubDate>Wed, 31 Jul 2019 17:01:10 +0800</pubDate><description><![CDATA[centos 内核升级]]></description><category></category></item><item><title><![CDATA[RocketMQ简介]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/97001268</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/97001268</guid><author>li627263113</author><pubDate>Tue, 23 Jul 2019 20:01:57 +0800</pubDate><description><![CDATA[消息队列作为高并发系统的核心组件之一，能够帮助业务系统解构提升开发效率和系统稳定性。主要具有以下优势：

削峰填谷（主要解决瞬时写压力大于应用服务能力导致消息丢失、系统奔溃等问-题）
系统解耦（解决不同重要程度、不同能力级别系统之间依赖导致一死全死）
提升性能（当存在一对多调用时，可以发一条消息给消息系统，让消息系统通知相关系统）
蓄流压测（线上有些链路不好压测，可以通过堆积一定量消息再放开来压测...]]></description><category></category></item><item><title><![CDATA[Spring aop配置方式]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/96875194</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/96875194</guid><author>li627263113</author><pubDate>Mon, 22 Jul 2019 17:35:08 +0800</pubDate><description><![CDATA[Spring aop配置]]></description><category></category></item><item><title><![CDATA[Java内存区域-运行时数据区]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/96288373</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/96288373</guid><author>li627263113</author><pubDate>Wed, 17 Jul 2019 17:06:07 +0800</pubDate><description><![CDATA[Java内存区域-运行时数据区]]></description><category></category></item><item><title><![CDATA[ArrayList扩容机制]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/95193217</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/95193217</guid><author>li627263113</author><pubDate>Tue, 09 Jul 2019 20:49:56 +0800</pubDate><description><![CDATA[简单介绍ArrayList扩容机制]]></description><category></category></item><item><title><![CDATA[锁（一）乐观锁]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/95089721</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/95089721</guid><author>li627263113</author><pubDate>Mon, 08 Jul 2019 20:55:55 +0800</pubDate><description><![CDATA[乐观锁]]></description><category></category></item><item><title><![CDATA[HashMap源码解析（三）JDK1.7与JDK1.8不同的关键点]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/94873105</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/94873105</guid><author>li627263113</author><pubDate>Mon, 08 Jul 2019 19:21:53 +0800</pubDate><description><![CDATA[JDK1.7与JDK1.8不同的关键点]]></description><category></category></item><item><title><![CDATA[HashMap源码解析（二）JDK1.8]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/94453473</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/94453473</guid><author>li627263113</author><pubDate>Sat, 06 Jul 2019 16:59:19 +0800</pubDate><description><![CDATA[只标注了与1.7不同的地方]]></description><category></category></item><item><title><![CDATA[HashMap源码解析（一）JDK1.7]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/94448909</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/94448909</guid><author>li627263113</author><pubDate>Thu, 04 Jul 2019 19:51:53 +0800</pubDate><description><![CDATA[JDK1.7HashMap源码解析
对源代码逐句进行解析]]></description><category></category></item><item><title><![CDATA[Ext显示实时时间]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/94394906</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/94394906</guid><author>li627263113</author><pubDate>Tue, 02 Jul 2019 15:57:22 +0800</pubDate><description><![CDATA[通过taskmanager不断的获取最新时间，赋值label内容，达到实时效果

tbar:[{

xtype:'label',

width:100,

id:'clock',

listeners:{

//渲染

'render':function(){

clockGo();

}

}

}...]]></description><category></category></item><item><title><![CDATA[nginx简单学习]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/84342178</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/84342178</guid><author>li627263113</author><pubDate>Sat, 08 Dec 2018 17:19:30 +0800</pubDate><description><![CDATA[最近，自己部署了一个all in one的网站，采用了nginx+tomcat做了转发代理。作为一个菜鸟，之前没接触nginx，不是很了解它的机制。

ngin分为正向代理和反向代理。

正向代理是 和跳板机差不多，代理访问外网。内网的客户端发送请求，通过nginx代理，访问外部资源，像一些企业内网等。比如，内网客户端限制不能访问淘宝网，而代理服务器是可以访问淘宝，客户端想要访问淘宝的话，需要先连...]]></description><category></category></item><item><title><![CDATA[BeanUtils.copyProperties()属性]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/78583189</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/78583189</guid><author>li627263113</author><pubDate>Mon, 20 Nov 2017 16:05:29 +0800</pubDate><description><![CDATA[BeanUtils目的是优化对JavaBean的处理，减少get/set代码，针对两个具有几乎相同属性的对象，作用是将一个Bean对象中的数据封装到另一个属性结构相似的Bean对象中,这几天翻阅一些代码，有用到BeanUtils来进行两个对象的复制-赋值。查阅了一下这个类的作用，发现网上很多的描述很不够细致，缺少了很关键的部分。
BeanUtils有不同的引包，分为两个org.springfram...]]></description><category></category></item><item><title><![CDATA[hadoop2.x-eclipse插件编译]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/53259686</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/53259686</guid><author>li627263113</author><pubDate>Mon, 21 Nov 2016 15:12:39 +0800</pubDate><description><![CDATA[警告：本人测试，以下hadoop-2.7.2版本插件编译完成之后，安装插件之后出现错误Could not initialize class org.apache.hadoop.hdfs.DFSConfigKeys。所以本人重新安装替换hadoop-2.6.5，编译通过，没有问题，插件可用。（ps:我不清楚是我当初2.7.2配置出错了，还是本身版本问题。编译步骤没有错误）需要的资源：作者环境是win...]]></description><category></category></item><item><title><![CDATA[VMWare克隆Centos之后，网卡设置]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/52986757</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/52986757</guid><author>li627263113</author><pubDate>Mon, 31 Oct 2016 21:10:35 +0800</pubDate><description><![CDATA[编辑网卡设备
1  vi /etc/udev/rules.d/70-persistent-net.rules

会看到有2块网卡eth0和eth1，eth0为克隆系统的，eth1为重新生成
# PCI device 0x8086:0x100f (e1000)
#SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="]]></description><category></category></item><item><title><![CDATA[集群时间同步]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/52985799</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/52985799</guid><author>li627263113</author><pubDate>Mon, 31 Oct 2016 20:02:48 +0800</pubDate><description><![CDATA[首先配置主机：
1查看本机时间和时区（date）

1）设置时区（
tzselect ;
cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
2）修改时间，
网络同步：ntpdate cn.pool.ntp.org
3）写入硬盘时间    
hwclock -w
时间设置完毕。
2.时间同步(主机,NTP服务linux默认已]]></description><category></category></item><item><title><![CDATA[64位centos 安装遇到intel vt-x虚拟化技术问题]]></title><link>https://blog.youkuaiyun.com/li627263113/article/details/52980168</link><guid>https://blog.youkuaiyun.com/li627263113/article/details/52980168</guid><author>li627263113</author><pubDate>Mon, 31 Oct 2016 10:18:50 +0800</pubDate><description><![CDATA[安装完VMWare,在安装centos64位过程中，遇到一下问题：已将该虚拟机配置为使用 64 位客户机操作系统。但是，无法执行 64 位操作。 此主机支持 Intel VT-x，但 Intel VT-x 处于禁用状态。如果已在 BIOS/固件设置中禁用 Intel VT-x，或主机自更改此设置后从未重新启动，则 Intel VT-x 可能被禁用。 (1) 确认 BIOS/固件设置中启用了Inte...]]></description><category></category></item></channel></rss>