1、关闭SELinux和防火墙

打开SELinux文件并修改SELINUX参数

vim /etc/sysconfig/selinux

SELINUX=disabled

执行如下命令 临时关闭（不用重启机器）

setenforce 0

关闭防火墙

systemctl stop firewalld.service

禁止防火墙开机启动

systemctl disable firewalld.service

2、安装Mysql

下载Mysql的repo源

wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

安装mysql-community-release-el7-5.noarch.rpm包

rpm -ivh mysql-community-release-el7-5.noarch.rpm

执行安装Mysql

yum install -y mysql-server

更改Mysql用户权限

chown -R root:root /var/lib/mysql

重启服务

systemctl restart mysql.service

查看Mysql是否开启

systemctl status mysql.service

登陆Mysql并修改密码

mysql -u root

mysql > use mysql;

mysql > update user set password=password(‘123456‘) where user=‘root‘;

mysql >  GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION;

mysql > flush privileges;

mysql > exit;

设置Mysql开机启动

systemctl enable mysqld.service

打开my.ini

vim /etc/my.ini

修改max_allowed_packet参数，无则添加（避免大数据写入或者更新失败）

max_allowed_packet = 20M

重启服务

systemctl restart mysql.service

3、安装Nginx

下载对应当前系统版本的Nginx包

wget http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

创建Nginx的yum仓库

rpm -ivh nginx-release-centos-7-0.el7.ngx.noarch.rpm

下载并安装Nginx

yum install -y nginx

开启Nginx

systemctl start nginx.service

查看Nginx是否运行成功

systemctl status nginx.service

设置Nginx开机启动

systemctl enable nginx.service

4、安装JAVA8

查看JAVA版本（是否已安装）

java -version

查看内置JDK

rpm -qa | grep java

移除内置JDK，按照依赖顺序删除（*号替换为需要删除的文件名）

rpm -e --nodeps *