1.安装之前：全部更新一次系统

yum update

2.jdk安装

yum search jdk

[root@192 ~]# yum search jdk
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyun.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
============================================================================================== N/S matched: jdk ===============================================================================================
copy-jdk-configs.noarch : JDKs configuration files copier
java-1.6.0-openjdk.x86_64 : OpenJDK Runtime Environment
java-1.6.0-openjdk-demo.x86_64 : OpenJDK Demos
java-1.6.0-openjdk-devel.x86_64 : OpenJDK Development Environment
java-1.6.0-openjdk-javadoc.x86_64 : OpenJDK API Documentation
java-1.6.0-openjdk-src.x86_64 : OpenJDK Source Bundle
java-1.7.0-openjdk.x86_64 : OpenJDK Runtime Environment
java-1.7.0-openjdk-accessibility.x86_64 : OpenJDK accessibility connector
java-1.7.0-openjdk-demo.x86_64 : OpenJDK Demos
java-1.7.0-openjdk-devel.x86_64 : OpenJDK Development Environment
java-1.7.0-openjdk-headless.x86_64 : The OpenJDK runtime environment without audio and video support
java-1.7.0-openjdk-javadoc.noarch : OpenJDK API Documentation
java-1.7.0-openjdk-src.x86_64 : OpenJDK Source Bundle
java-1.8.0-openjdk.i686 : OpenJDK Runtime Environment 8
java-1.8.0-openjdk.x86_64 : OpenJDK 8 Runtime Environment
java-1.8.0-openjdk-accessibility.i686 : OpenJDK accessibility connector
java-1.8.0-openjdk-accessibility.x86_64 : OpenJDK accessibility connector
java-1.8.0-openjdk-demo.i686 : OpenJDK Demos 8
java-1.8.0-openjdk-demo.x86_64 : OpenJDK 8 Demos
java-1.8.0-openjdk-devel.i686 : OpenJDK Development Environment 8
java-1.8.0-openjdk-devel.x86_64 : OpenJDK 8 Development Environment
java-1.8.0-openjdk-headless.i686 : OpenJDK Headless Runtime Environment 8
java-1.8.0-openjdk-headless.x86_64 : OpenJDK 8 Headless Runtime Environment
java-1.8.0-openjdk-javadoc.noarch : OpenJDK 8 API documentation
java-1.8.0-openjdk-javadoc-zip.noarch : OpenJDK 8 API documentation compressed in a single archive
java-1.8.0-openjdk-src.i686 : OpenJDK Source Bundle 8
java-1.8.0-openjdk-src.x86_64 : OpenJDK 8 Source Bundle
java-11-openjdk.i686 : OpenJDK Runtime Environment 11
java-11-openjdk.x86_64 : OpenJDK 11 Runtime Environment
java-11-openjdk-demo.i686 : OpenJDK Demos 11
java-11-openjdk-demo.x86_64 : OpenJDK 11 Demos
java-11-openjdk-devel.i686 : OpenJDK Development Environment 11
java-11-openjdk-devel.x86_64 : OpenJDK 11 Development Environment
java-11-openjdk-headless.i686 : OpenJDK Headless Runtime Environment 11
java-11-openjdk-headless.x86_64 : OpenJDK 11 Headless Runtime Environment
java-11-openjdk-javadoc.i686 : OpenJDK 11 API documentation
java-11-openjdk-javadoc.x86_64 : OpenJDK 11 API documentation
java-11-openjdk-javadoc-zip.i686 : OpenJDK 11 API documentation compressed in a single archive
java-11-openjdk-javadoc-zip.x86_64 : OpenJDK 11 API documentation compressed in a single archive
java-11-openjdk-jmods.i686 : JMods for OpenJDK 11
java-11-openjdk-jmods.x86_64 : JMods for OpenJDK 11
java-11-openjdk-src.i686 : OpenJDK Source Bundle 11
java-11-openjdk-src.x86_64 : OpenJDK 11 Source Bundle
java-11-openjdk-static-libs.i686 : OpenJDK libraries for static linking 11
java-11-openjdk-static-libs.x86_64 : OpenJDK 11 libraries for static linking
ldapjdk-javadoc.noarch : Javadoc for ldapjdk
icedtea-web.x86_64 : Additional Java components for OpenJDK - Java browser plug-in and Web Start implementation
ldapjdk.noarch : The Mozilla LDAP Java SDK

2.1 安装jdk1.8

yum install -y java-1.8.0-openjdk.x86_64

安装成功

[root@192 ~]# java -version
openjdk version "1.8.0_312"
OpenJDK Runtime Environment (build 1.8.0_312-b07)
OpenJDK 64-Bit Server VM (build 25.312-b07, mixed mode)

2.2手动安装

解压

tar -zxvf jdk-8u281-linux-x64.tar.gz

选择安装目录

cd /www/kuangstudy/jdk/jdk1.8.0_281

配置jdk的环境变量

vim /etc/profile

在文件的末尾添加jdk的环境变量的配置如下：

export JAVA_HOME=你的jdk的目录
export PATH=$JAVA_HOME/bin:$PATH
export
CLASSPATH=.;$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools

保存退出：:wq 查看版本

java -version

3.Redis安装

3.1 更新系统文件的组件依赖

yum -y install gcc gcc-c++ make tcl
yum -y install centos-release-scl
yum -y install devtoolset-9-gcc devtoolset-9-gcc-c++ devtoolset-9-binutils scl enable devtoolset-9 bash

3.2 执行安装

mkdir -p /www/kuangstudy/redis
cd /www/kuangstudy/redis
wget http://download.redis.io/releases/redis-6.0.6.tar.gz
tar xzf redis-6.0.6.tar.gz
cd redis-6.0.6
make

3.3启动Redis

src/redis-server

3.4 使用内置的客户端与Redis进行交互

$ src/redis-cli
redis> set foo bar
OK
redis> get foo
"bar"

3.5 修改配置，设置密码，远程连接

打开配置文件redis.conf

cd /www/kuangstudy/redis/redis-6.0.6
vim redis.conf

• redis默认启动方式，占用的方式启动，需要修改

daemonize yes

• 设置密码

requirepass password..

• 远程启动：bind注释掉

protected-mode no
#bind 127.0.0.1

3.6 启动

src/redis-server ./redis.conf

3.7 配置环境变量

vim /etc/profile

添加

export
REDIS_HOME=/www/kuangstudy/redis/redis-6.0.6
export
JAVA_HOME=/www/kuangstudy/jdk/jdk1.8.0_281
export
PATH=$REDIS_HOME/src:$JAVA_HOME/bin:$PATH

重启配置文件

source /etc/profile