<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[dy_miao的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/dy_miao</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; dy_miao]]></copyright><item><title><![CDATA[逻辑推理：猜扑克，问题论证]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/127917457</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/127917457</guid><author>dy_miao</author><pubDate>Fri, 18 Nov 2022 10:38:44 +0800</pubDate><description><![CDATA[告诉A点数，告诉B花色。通过他们的对话，猜出是哪张牌。在此我提出疑问，这个问题本身是否存在问题？]]></description><category></category></item><item><title><![CDATA[spark的WordCount]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/97671091</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/97671091</guid><author>dy_miao</author><pubDate>Mon, 29 Jul 2019 19:36:40 +0800</pubDate><description><![CDATA[一、交互式界面中的操作
	1.设置连接的文件地址
	sc.textFile("hdfs://IP地址:9000/dy/wz.txt")
	2.设置分切统计
	val wc = file.flatMap(line =&gt; line.split("[,| |.| \"]")).map(word=&gt;(word,1)).reduceByKey(_+_)
	3.界面显示统计结果
	wc.colle...]]></description><category></category></item><item><title><![CDATA[自定义List对象集合排序]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/91607370</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/91607370</guid><author>dy_miao</author><pubDate>Wed, 12 Jun 2019 19:59:07 +0800</pubDate><description><![CDATA[1.定义实体类
public class Commodity {
    //种类、名称、价格、商家名称、月均销量
    private String type;
    private String name;
    private double price;
    private String shopName;
    private int sales;

    public Co...]]></description><category></category></item><item><title><![CDATA[centos7中安装elasticsearch]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/91465000</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/91465000</guid><author>dy_miao</author><pubDate>Tue, 11 Jun 2019 20:40:03 +0800</pubDate><description><![CDATA[1.我准备的安装包是6.2.2版本
链接：https://pan.baidu.com/s/1SRcGDKQXNnUTK22FYTkn9Q
提取码：o78w
2.通过工具，复制安装包至centos7的usr/soft中
3.解压安装包
cd /usr/soft/
tar -zxvf elasticsearch-6.2.2.tar.gz
4.在elasticsearch-6.2.2文件中，修改conf...]]></description><category></category></item><item><title><![CDATA[docker安装TOMCAT]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/91461932</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/91461932</guid><author>dy_miao</author><pubDate>Tue, 11 Jun 2019 20:10:33 +0800</pubDate><description><![CDATA[docker下载镜像
docker pull tomcat:8 comcat8
新建一台docker虚拟机，并映射端口
Tomcat默认端口  8080
docker run -d --name tomcat1 -p 9000:8080 镜像名
后台开启一台虚拟机   映射端口   开启
3.查询系统现有的docker虚拟机
docker ps -a
docker ps查询已开启的docker机...]]></description><category></category></item><item><title><![CDATA[docker安装MySql，并修改数据库的默认字符集]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/91461581</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/91461581</guid><author>dy_miao</author><pubDate>Tue, 11 Jun 2019 20:07:00 +0800</pubDate><description><![CDATA[1.docker启动MySQL数据库的容器镜像
docker run -d --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=dy  xxxx镜像文件名

2.找到配置文件   mysql.cnf
①	.进入容器，即打开虚拟机
docker exec -it 83f1aa51b96f /bin/bash
②	.找到mysql.cnf文件，确认是否存在...]]></description><category></category></item><item><title><![CDATA[docker应用]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/91460558</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/91460558</guid><author>dy_miao</author><pubDate>Tue, 11 Jun 2019 19:56:10 +0800</pubDate><description><![CDATA[1.下载镜像
docker pull tomcat:8   comcat8
docker pull mysql:5.6   mysql 5.6
docker pull redis:3.2   redis  3.2
2.查询所有镜像
docker images
3.查询已运行的docker虚拟机
docker ps -a  查询所有已创建的虚拟机
docker ps查询已开启的docker机器
4....]]></description><category></category></item><item><title><![CDATA[centos7安装MySQL]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/91398171</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/91398171</guid><author>dy_miao</author><pubDate>Mon, 10 Jun 2019 20:30:54 +0800</pubDate><description><![CDATA[1.检查现环境是否存在MySql
rpm -qa | grep mysql
无返回则表示没有安装
2.	卸载相关组件
rpm -e –nodeps MySql相关组件信息
3.	进入usr/soft目录，下载安装包
wget  http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
4.准备安装
sudo rpm -ivh my...]]></description><category></category></item><item><title><![CDATA[JAVA中将数据库查询的ResultSet结果集转为对象实体类的List集合（反射）]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/90758123</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/90758123</guid><author>dy_miao</author><pubDate>Mon, 03 Jun 2019 20:11:47 +0800</pubDate><description><![CDATA[//定义静态方法，并根据泛型和反射，实现转换
//注意：要求数据库的列名必须和JAVA实体类的属性名、类型完全一致
public static  List resultSetToList(ResultSet rs,Class cls) {
//定义接收的集合
List list = new ArrayList();
//创建一个对象，方便后续反射赋值
Object obj=null;
try {
...]]></description><category></category></item><item><title><![CDATA[centos7安装docker]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/90757645</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/90757645</guid><author>dy_miao</author><pubDate>Mon, 03 Jun 2019 20:00:18 +0800</pubDate><description><![CDATA[1.参考网址：https://www.cnblogs.com/yufeng218/p/8370670.html
2.由于我没有安装，且安装centos7时有创建root用户，所以直接安装软件包
yum install -y yum-utils device-mapper-persistent-data lvm2
3.设置源
yum-config-manager --add-repo https:/...]]></description><category></category></item><item><title><![CDATA[centos7安装JAVA-JDK]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/90756820</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/90756820</guid><author>dy_miao</author><pubDate>Mon, 03 Jun 2019 18:30:26 +0800</pubDate><description><![CDATA[1.借助MobaXterm_Portable_v11.1使用centos7系统
链接：https://pan.baidu.com/s/1y8uSNXT4BlhHVg6KihQeqw
提取码：wh5t
2.安装的jdk-8u111-linux-x64.tar.gz版本的JDK
链接：https://pan.baidu.com/s/1PJXk4mRywbHAaFwUeGTkLA
提取码：6xim
1....]]></description><category></category></item><item><title><![CDATA[Linux系统用到的命令]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/90755906</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/90755906</guid><author>dy_miao</author><pubDate>Mon, 03 Jun 2019 17:37:07 +0800</pubDate><description><![CDATA[1.关机    shutdown now
2.重启   initia 6
3.解压
gz文件用： tar –zxvf name
zip用：unzip name
4.进入文件夹  cd /usr/soft
5.返回上一层   cd …
6.查看文件夹中的文件资料    ls
7.打开文本程序编辑文件   vi /etc/hosts
8.显示当前路径   pow
9.查询IP    ifconfig
...]]></description><category></category></item><item><title><![CDATA[VirtualBox虚拟机安装centos 7]]></title><link>https://blog.youkuaiyun.com/dy_miao/article/details/90755518</link><guid>https://blog.youkuaiyun.com/dy_miao/article/details/90755518</guid><author>dy_miao</author><pubDate>Mon, 03 Jun 2019 17:32:01 +0800</pubDate><description><![CDATA[1.虚拟机使用的VirtualBox-6.0.4-128413-Win
链接：https://pan.baidu.com/s/1LODm1SW_KGhrxmfSyXNgBg
提取码：rday
2.CentOS-7-x86_64-DVD-1611.iso
由于网盘存储文件大小原因，又使用7z强压了一次，终于在4G以内了
链接：https://pan.baidu.com/s/1ifnbF3Utcfgk...]]></description><category></category></item></channel></rss>