<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[u010985535的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/u010985535</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; u010985535]]></copyright><item><title><![CDATA[常见数据类型的API]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/110919891</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/110919891</guid><author>u010985535</author><pubDate>Wed, 09 Dec 2020 12:01:45 +0800</pubDate><description><![CDATA[常见数据类型的API
byte：8位，最大存储数据量是255，存放的数据范围是-128~127之间。
short：16位，最大数据存储量是65536，数据范围是-32768~32767之间。
int：32位，最大数据存储容量是2的32次方减1，数据范围是负的2的31次方到正的2的31次方减1。
long：64位，最大数据存储容量是2的64次方减1，数据范围为负的2的63次方到正的2的63次方减1。
float：32位，数据范围在3.4e-45~1.4e38，直接赋值时必须在数字后加上f或F。
double：]]></description><category></category></item><item><title><![CDATA[spring aop的用法]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/109417142</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/109417142</guid><author>u010985535</author><pubDate>Sun, 01 Nov 2020 12:24:09 +0800</pubDate><description><![CDATA[spring aop的用法


[外链图片转存失败,源站可能有防盗链机制,建议将图片保存下来直接上传(img-yVyhbhAF-1604204613047)(images_java aop用法/image-20201101120649150.png)]


AnnotationPointCut 切面类
package com.kuang.diy;

//方式三：使用注解方式实现AOP

import org.aspectj.lang.ProceedingJoinPoint;
import org.aspec]]></description><category></category></item><item><title><![CDATA[spring集成mybatis]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/109181174</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/109181174</guid><author>u010985535</author><pubDate>Tue, 20 Oct 2020 14:58:27 +0800</pubDate><description><![CDATA[spring集成mybatis
1.资源文件
pom文件
&lt;?xml version="1.0" encoding="UTF-8"?&gt;
&lt;project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://mav]]></description><category></category></item><item><title><![CDATA[java字符串和数值互转的方法]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108484566</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108484566</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 10:43:30 +0800</pubDate><description><![CDATA[import com.java.justtest.beReferToJT;
// 备份原来的代码
public boolean processRow(StepMetaInterface smi, StepDataInterface sdi) throws KettleException {
if (first) {
first = false;
/* TODO: Your code here. (Using info fields)

FieldHelper infoField = get(Fields.I]]></description><category></category></item><item><title><![CDATA[增加物理磁盘后扩容为lvm实战]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108483113</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108483113</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 09:51:38 +0800</pubDate><description><![CDATA[#顺序：
pv – vg --lv
df -h
fdisk -l
df -h
man df
df -Th
shutdown now
#实战1：删除某个pv
#pvscan 查看
vgreduce centos /dev/sdb1
#pvscan 查看
#pvdisplay
pvremove /dev/sdb1
#查看是否删除成功
#pvs
#vgs
#实战2：增加好物理硬盘后，扩容到lvm中
#fdisk -l
fdisk /dev/sdb
#ll /dev/sdb*
pvcreate /dev/sdb1
]]></description><category></category></item><item><title><![CDATA[从普通磁盘阵列变为lvm]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108483090</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108483090</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 09:50:53 +0800</pubDate><description><![CDATA[yum -y install lvm2 rsync;
#######
fdisk /dev/sdb
n
p
回车
回车
+1G
n
回车
回车
回车
t
回车
8e
a
1
p
w
#######
pvcreate /dev/sdb2;
vgcreate rootvg /dev/sdb2;
lvcreate -n swap -L 1G rootvg;
lvcreate -n root -l 100%FREE rootvg;
mkfs.ext4 /dev/sdb1;
mkfs.xfs /dev/rootvg/]]></description><category></category></item><item><title><![CDATA[linux主机磁盘扩容]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108483049</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108483049</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 09:50:10 +0800</pubDate><description><![CDATA[mkfs.ext4 /dev/sdb1
######################
–总结：
1.fuser -mv /dev/mapper/vgtest-lvtest   #找到占用磁盘的进程
######################
mkfs.xfs /dev/sdb1 (Centos7 后都用这种日志系统格式)
通过vmware增加磁盘后
#1
fdisk -l
#2
fdisk /dev/sdb   #按英文说明 进行分区操作
n：创建新分区
p：创建主分区
回车：分区编号
回车：开始磁盘大小]]></description><category></category></item><item><title><![CDATA[2020-09-09]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108482973</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108482973</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 09:48:16 +0800</pubDate><description><![CDATA[docker 总结
win10打开docker 需要在“启用或关闭windows功能”中，打开Hyper-V
显示docker的版本信息
C:\Users\Administrator&gt;docker version
Client: Docker Engine - Community
Version:           19.03.8
API version:       1.40
Go version:        go1.12.17
Git commit:        afacb8b
Built]]></description><category></category></item><item><title><![CDATA[搭建 cdh5.16.1 的步骤]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108482885</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108482885</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 09:46:08 +0800</pubDate><description><![CDATA[搭建 cdh5.16.1 的步骤
1.设置 hosts 文件
/etc/hosts

#example
172.16.28.110 CDH04
172.16.28.111 CDH03
172.16.28.112 CDH02

2.关闭所有节点的防火墙及清空规则
#查看防火墙状态
#systemctl status firewalld 

systemctl stop firewalld
systemctl disable firewalld
iptables -F

3.关闭所有节点的 selinux
#查]]></description><category></category></item><item><title><![CDATA[实站：离线安装mysql]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/108482625</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/108482625</guid><author>u010985535</author><pubDate>Wed, 09 Sep 2020 09:41:54 +0800</pubDate><description><![CDATA[实站：离线安装mysql
1.解压缩文件
[root@cdh02 ~]tar xzvf mysql-5.7.11-linux-glibc2.5-x86_64.tar.gz -C /usr/local
[root@cdh02 ~]cd /usr/local 
[root@cdh02 ~]mv mysql-5.7.11-linux-glibc2.5-x86_64 mysql #先确保没有同名的文件夹

2.编辑配置文件
[root@cdh02 ~]# vim /etc/my.cnf
==============]]></description><category></category></item><item><title><![CDATA[Python自然语言处理 nltk.text模块下Text对象的各个函数（入门函数）用法分享]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/104997340</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/104997340</guid><author>u010985535</author><pubDate>Fri, 20 Mar 2020 20:27:02 +0800</pubDate><description><![CDATA[此文章是个人在学习nltk.text模块的过程中的一个总结，难免有瑕疵的地方，欢迎大家参与讨论，感谢你的善良。
1.collocation_list
####这一段为模板代码下面的函数就省略了
import nltk.corpus
from nltk.text import Text
mytext = Text(nltk.corpus.gutenberg.words('melville-moby_...]]></description><category></category></item><item><title><![CDATA[Java 序列化]]></title><link>https://blog.youkuaiyun.com/u010985535/article/details/104857823</link><guid>https://blog.youkuaiyun.com/u010985535/article/details/104857823</guid><author>u010985535</author><pubDate>Sat, 14 Mar 2020 12:02:29 +0800</pubDate><description><![CDATA[参考链接：https://www.runoob.com/java/java-serialization.html
Java 序列化
Java 提供了一种对象序列化的机制，该机制中，一个对象可以被表示为一个字节序列，该字节序列包括该对象的数据、有关对象的类型的信息和存储在对象中数据的类型。
将序列化对象写入文件之后，可以从文件中读取出来，并且对它进行反序列化，也就是说，对象的类型信息、对象的数据，还...]]></description><category></category></item></channel></rss>