[mysqld]
# 设置3306端口
port=3306
# 设置mysql的安装目录
basedir=C:\Program Files\MySQL
# 设置mysql数据库的数据的存放目录
datadir=E:\database\MySQL\Data
# 允许最大连接数
max_connections=200
# 允许连接失败的次数。这是为了防止有人从该主机试图攻击数据库系统
max_connect_errors=10
# 服务端使用的字符集默认为UTF8
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
# 默认使用“mysql_native_password”插件认证
default_authentication_plugin=mysql_native_password
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port=3306
default-character-set=utf8

C:\Users\Administrator>cd C:\Program Files\MySQL\bin
C:\Program Files\MySQL\bin>mysqld --initialize --console
2018-04-28T15:57:17.087519Z 0 [System] [MY-013169] [Server] C:\Program Files\MySQL\bin\mysqld.exe (mysqld 8.0.11) initializing of server in progress as process 4984
2018-04-28T15:57:24.859249Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: rI5rvf5x5G,E
2018-04-28T15:57:27.106660Z 0 [System] [MY-013170] [Server] C:\Program Files\MySQL\bin\mysqld.exe (mysqld 8.0.11) initializing of server has completed
C:\Program Files\MySQL\bin>

C:\Program Files\MySQL\bin>mysqld --install
Service successfully installed.
C:\Program Files\MySQL\bin>net start mysql

SET PASSWORD=PASSWORD('[修改的密码]');

ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码';

[mysqld]
default_authentication_plugin=mysql_native_password

C:\Program Files\MySQL\bin>mysql -u root -p
Enter password: ************
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.11
Copyright (c) 2000, 2018, 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> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码';
Query OK, 0 rows affected (0.06 sec)
mysql>

show databases;
use mysql;
show tables;
mysql> show databases;
+--------------------+
| Database      |
+--------------------+
| information_schema |
| mysql       |
| performance_schema |
| sys        |
+--------------------+
4 rows in set (0.01 sec)
mysql>

select user,host,authentication_string from mysql.user;

mysql> select user,host,authentication_string from mysql.user;
+------------------+-----------+-------------------------------------------+
| user       | host   | authentication_string           |
+------------------+-----------+-------------------------------------------+
| mysql.infoschema | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| mysql.session  | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| mysql.sys    | localhost | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| root       | localhost | *27C237A977F4F44D3F551F1A673BE14DFD232961 |
+------------------+-----------+-------------------------------------------+
4 rows in set (0.00 sec)
mysql>

CREATE USER 'xxh'@'%' IDENTIFIED WITH mysql_native_password BY 'xxh123!@#';
#(需要注意：mysql8.0加密方式修改了)
#检查用户
select user, host, plugin, authentication_string from user\G;
授权远程数据库
#授权所有权限 
GRANT ALL PRIVILEGES ON *.* TO 'xxh'@'%'；
#授权基本的查询修改权限，按需求设置
GRANT SELECT,INSERT,UPDATE,DELETE,CREATE,DROP,ALTER ON *.* TO 'xxh'@'%';

show grants for 'xxh'@'%';

mysql> use mysql;
Database changed
mysql> CREATE USER 'xxh'@'%' IDENTIFIED WITH mysql_native_password BY 'xxh123!@#'; #创建用户(注意：mysql8.0加密方式修改了)
Query OK, 0 rows affected (0.07 sec)
mysql> 

mysql> select user, host, plugin, authentication_string from user;
+------------------+-----------+-----------------------+-------------------------------------------+
| user       | host   | plugin        | authentication_string           |
+------------------+-----------+-----------------------+-------------------------------------------+
| xxh       | %     | mysql_native_password | *70FD6FB4F675E08FF785A754755B5EBA6DA62851 |
| mysql.infoschema | localhost | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| mysql.session  | localhost | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| mysql.sys    | localhost | mysql_native_password | *THISISNOTAVALIDPASSWORDTHATCANBEUSEDHERE |
| root       | localhost | mysql_native_password | *27C237A977F4F44D3F551F1A673BE14DFD232961 |
+------------------+-----------+-----------------------+-------------------------------------------+
5 rows in set (0.00 sec)
mysql>