网卡设置: Controller Node # The loopback network interface auto lo iface lo inet loopback   # The primary network interface auto eth0 iface eth0 inet static address 192.168.0.5 gateway 192.168.0.254 netmask 255.255.255.0 dns-nameservers 114.114.114.114  …

Cisco IOS Basic CLI Configuration : Switch Port Command 1.  Basic Switch>en Switch#conf t Enter configuration commands, one per line.  End with CNTL/Z. Switch(config)#interface vlan 1 Switch(config-if)#ip address 192.168.1.200 255.255.255.0 Switch(co…

Environment Configuration Files When a user logs in, an environment is created for that user automatically. This happens based on four different files where some script code can be specified and where variables can be defined for use by one specific…

原文: https://computers.tutsplus.com/tutorials/basic-vim-configuration--cms-21498 原来,vim的配置文件,.vimrc也是一种类似于shell ,javascript 的脚本语言.叫做vimScript Functions are very useful in the .vimrc file. Since the Vim’s configuration files use a full programing langu…

1.  Telnet Switch Config: Switch>en Switch#conf t Enter configuration commands, one per line.  End with CNTL/Z. Switch(config)#enable secret zhang Switch(config)#line console 0 Switch(config-line)#password 123 Switch(config-line)#login Switch(config-…

一.CentOS 7.9 Related Software Directory Installing VMware Workstation Pro on Windows Installing CentOS 7.9 in VMware Workstation Pro 16 CentOS 7.9 Configures Yum Local Source Everything Installing JDK-8u333 on CentOS 7.9 Installing Maven-3.8.6 on Cen…

Introduction The Internet changes the ways in which companies handle their day-to-day business and how they compete in the marketplace. With the advent of new Web technologies and an increase in the number of customers accessing resources that are av…

Introduction The Internet changes the ways in which companies handle their day-to-day business and how they compete in the marketplace. With the advent of new Web technologies and an increase in the number of customers accessing resources that are av…

(补充知识点: 1 byte(字节)=8 bit(位) 通常一个标准英文字母占一个字节位置,一个标准汉字占两个字节位置:字符的例子有:字母.数字系统或标点符号) 1.创建SqlSessionFactory ①Reader reader = Resources.getResourceAsReader("mybatis-config.xml");                       //获取mybatis配置文件的字符 注解:Resources类是在mybatis中定义的一个类:g…

参考:https://github.com/spring-projects/spring-boot/issues/4711 这个issue提出不到20天给我搜出来了,还是相信google的强大 问题: 在spring的Configuration使用@Bean注册一个BeanFactoryPostProcessor Bean,发现使用@PropertySource,并注入@Resource private Environment env;发现env为null.我调试的大概一个过程,BeanFact…