一、JDK1.8 環境搭建
1、上傳文件解壓
[root@localhost mysoft]# tar -zxvf jdk-8u161-linux-x64.tar.gz
[root@localhost mysoft]# pwd
/usr/local/mysoft
[root@localhost mysoft]# mv jdk1.8.0_161 jdk1.8
2、檢查環境,已經安裝刪除
[root@localhost mysoft]# ps -aux|grep java
[root@localhost mysoft]# rpm -e --nodeps rpm -qa | grep java
3、配置環境變量
[root@localhost /]# vim /etc/profile
# 文件末尾追加 下面內容 shit+g 跳到文件末尾
# JAVA_HOME
export JAVA_HOME=/usr/local/mysoft/jdk1.8
export PATH=$PATH:$JAVA_HOME/bin
4、檢測安裝成功
[root@localhost /]# java -version
openjdk version "1.8.0_161"
OpenJDK Runtime Environment (build 1.8.0_161-b14)
OpenJDK 64-Bit Server VM (build 25.161-b14, mixed mode)
二、TOMCAT8 安裝
1、上傳安裝包
[root@localhost mysoft]# tar -zxvf apache-tomcat-8.5.40.tar.gz
[root@localhost mysoft]# mv apache-tomcat-8.5.40 tomcat8.5
2、啓動服務
[root@localhost bin]# pwd
/usr/local/mysoft/tomcat8.5/bin
[root@localhost bin]# ./startup.sh
Tomcat started.
3、訪問測試
http://127.0.0.1:8080/ OK了
三、MySQL5.7 安裝
1、卸載原系統中的mariadb
[root@localhost /]# rpm -qa|grep mariadb
mariadb-libs-5.5.56-2.el7.x86_64
[root@localhost /]# rpm -e --nodeps mariadb-libs
[root@localhost /]# rpm -qa|grep mariadb
2、獲取官方地址
地址:https://dev.mysql.com/downloads/repo/yum/
https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
3、Yum源安裝
wget https://dev.mysql.com/get/mysql80-community-release-el7-3.noarch.rpm
[root@localhost /]# rpm -ivh mysql80-community-release-el7-3.noarch.rpm
[root@localhost /]# yum repolist all|grep mysql
mysql57-community/x86_64 MySQL 5.7 Community Server disabled
mysql80-community/x86_64 MySQL 8.0 Community Server enabled: 113
mysql80-community-source MySQL 8.0 Community Server - disabled
……..
yum源中默認啓用的安裝包版本爲MySQL8.0,這裏切換爲5.7,執行以下命令;
[root@localhost /]# yum-config-manager --disable mysql80-community
[root@localhost /]# yum-config-manager --enable mysql57-community
4、MySQL 安裝啓動
[root@localhost /]# yum install mysql-community-server
# 需要安裝依賴提示,選擇y
Total download size: 192 M
Installed size: 865 M
Is this ok [y/d/N]: y
查看版本
[root@localhost /]# mysql -V
mysql Ver 14.14 Distrib 5.7.26, for Linux (x86_64) using EditLine wrapper
啓動查看狀態
[root@localhost /]# systemctl start mysqld.service
[root@localhost /]# systemctl status mysqld.service
mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: active (running) since Tue 2019-05-14 17:26:32 CST; 31s ago
爲root賬戶生成臨時密碼
[root@localhost /]# grep 'temporary password' /var/log/mysqld.log
2019-05-14T09:26:28.657250Z 1 [Note] A temporary password is generated for root@localhost: !Bh(GT.od9L;
設置root用戶密碼
# 這裏防止出現密碼策略,強度不夠的問題
mysql> set global validate_password_policy=LOW;
mysql> alter user 'root'@'localhost' identified by 'husky123456';
這樣,Java的基礎環境就搭建完畢了!
四、源代碼地址
GitHub地址:知了一笑
https://github.com/cicadasmile
碼雲地址:知了一笑
https://gitee.com/cicadasmile