|NO.Z.00001|——————————|^^ 構建 ^^|——|Mysql.V5.7.35|

[Applications：Mysql.V5.7.35] [Applications.Databases] [|mysql5.7.35|centos7|安裝配置]

一、centos7安裝mysql5.7.27

### --- 下載 MySQL yum包

wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm

### --- 安裝MySQL源

rpm -Uvh mysql57-community-release-el7-10.noarch.rpm

### --- 安裝MySQL服務端,需要等待一些時間

yum install -y mysql-community-server

### --- 啟動MySQL

systemctl start mysqld.service

### --- 檢查是否啟動成功

systemctl status mysqld.service

二、mysql授權

### --- 獲取臨時密碼，MySQL5.7為root使用者隨機生成了一個密碼

grep 'temporary password' /var/log/mysqld.log

### --- 通過臨時密碼登入MySQL，進行修改密碼操作
### --- 使用臨時密碼登入後，不能進行其他的操作，否則會報錯，這時候我們進行修改密碼操作

mysql -uroot -p

### --- 因為MySQL的密碼規則需要很複雜，我們一般自己設定的不會設定成這樣，所以我們全域性修改一下
mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;

### --- 這時候我們就可以自己設定想要的密碼了
ALTER USER 'root'@'localhost' IDENTIFIED BY 'yourpassword';

### --- 授權其他機器遠端登入

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

### --- 開啟開機自啟動：先退出mysql命令列，然後輸入以下命令

systemctl enable mysqld
systemctl daemon-reload

### --- 設定MySQL的字符集為UTF-8，令其支援中文

vim /etc/my.cnf
#改成如下,然後儲存
 
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
 
[mysql]
default-character-set=utf8
 
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
default-storage-engine=INNODB
character_set_server=utf8
 
symbolic-links=0
 
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

### --- 重啟一下MySQL,令配置生效

systemctl restart mysqld

### --- 防火牆開放3306埠

firewall-cmd --state
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload

三、解除安裝mysql

### --- 解除安裝MySQL倉庫
### --- 一開始的時候我們安裝的yum，每次yum操作都會更新一次，耗費時間，我們把他解除安裝掉

rpm -qa | grep mysql
yum -y remove mysql57-community-release-el7-10.noarch

### --- 資料庫的操作
### --- 檢視mysql是否啟動：service mysqld status

~~~		啟動mysql：service mysqld start
~~~		停止mysql：service mysqld stop
~~~		重啟mysql：service mysqld restart
### --- 檢視臨時密碼：grep password /var/log/mysqld.log

附錄一：

### --- 輔助資料：

https://www.cnblogs.com/jinghuyue/p/11565564.html

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart ——W.S.Landor

來自為知筆記(Wiz)

|NO.Z.00001|——————————|^^ 構建 ^^|——|Mysql.V5.7.35|

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