MySQL8离线安装

现在离线安装包：

1. 登录官网准备下载

https://dev.mysql.com/downloads/mysql/

 

2，开始下载

 

解压安装包：

开始解压：

 

解压完成：

 

新建init文件：

在解压目录下创建my.ini文件

[Client]

port = 3306

[mysqld]

#设置3306端口

port = 3306

# 设置mysql的安装目录

basedir=D:WorkSpaceDevEnvDatabasesMySQLmysql8

# 设置mysql数据库的数据的存放目录

datadir=D:WorkSpaceDevEnvDatabasesMySQLmysql8data

# 允许最大连接数

max_connections=20

# 服务端使用的字符集默认为8比特编码的latin1字符集

character-set-server=utf8

# 创建新表时将使用的默认存储引擎

default-storage-engine=INNODB

[mysql]

# 设置mysql客户端默认字符集

default-character-set=utf8

初始化MySQL：

使用管理员运行dos窗口：

 

使用命令进行初始化MySQL：

C:Usersadmin>d:

D:>cd D:WorkSpaceDevEnvDatabasesMySQLmysql8in

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>mysqld --initialize --user=mysql --console

2020-06-01T12:56:18.263432Z 0 [System] [MY-013169] [Server] D:WorkSpaceDevEnvDatabasesMySQLmysql8inmysqld.exe (mysqld 8.0.20) initializing of server in progress as process 35440

2020-06-01T12:56:18.278456Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous.

2020-06-01T12:56:18.293667Z 1 [System] [MY-013576] [InnoDB] InnoDB initialization has started.

2020-06-01T12:56:18.822197Z 1 [System] [MY-013577] [InnoDB] InnoDB initialization has ended.

2020-06-01T12:56:20.349728Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: *9OjstMrX.Qp

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>

初始化完成如下：

 

命令安装MySQL：

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>mysqld --install mysql

Service successfully installed.

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>

 

启动MySQL服务：

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>net start mysql

mysql 服务正在启动 .

mysql 服务已经启动成功。

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>

登录MySQL：

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>mysql -u root -p

Enter password: ************

Welcome to the MySQL monitor.  Commands end with ; or g.

Your MySQL connection id is 8

Server version: 8.0.20

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql>

修改MySQL8的密码：

注意：到了MySQL8对于修改密码拥有了严格的语法限制：

mysql> alter user'root'@'localhost' identified with mysql_native_password by 'root' ;

Query OK, 0 rows affected (0.02 sec)

mysql> Flush privileges;

Query OK, 0 rows affected (0.04 sec)

mysql> exit;

Bye

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>

使用新密码登录MySQL：

D:WorkSpaceDevEnvDatabasesMySQLmysql8in>mysql -u root -p

Enter password: ****

Welcome to the MySQL monitor.  Commands end with ; or g.

Your MySQL connection id is 9

Server version: 8.0.20 MySQL Community Server - GPL

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

mysql> exit;

Bye

配置环境变量

为了后续方便，所以配置MySQL Path变量