# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

[mysqld]
# skip-grant-tables
port=3306
# 设置mysql的安装目录
basedir=D:\\Develop\\MySQL\\MySQLServer
# 设置mysql数据库的数据的存放目录（data目录在下面初始化时会自动创建，不需要我们手动创建）
datadir=D:\\Develop\\MySQL\\MySQLServer\\data
# 允许最大连接数
max_connections=200
# 允许连接失败的次数（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
# character-set-server=utf8
init_connect='SET collation_connection = utf8mb4_unicode_ci'
init_connect='SET NAMES utf8mb4'
character-set-server=utf8mb4
collation-server=utf8mb4_unicode_ci
skip-character-set-client-handshake
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
# mysql-8.0.4开始，其密码认证插件就由mysql_native_password改为了caching_sha2_password，而很多数据库工具和链接包暂时还不支持caching_sha2_password
default_authentication_plugin=mysql_native_password

[mysql]
# default-character-set=utf8
default-character-set=utf8mb4

[client]
default-character-set=utf8mb4

# 计算机---属性---高级系统设置---环境变量---系统变量
MYSQL_HOME=D:\Develop\MySQL\MySQLServer80
path=%MYSQL_HOME%\bin;......

C:\Users\Jadyer>mysqld --initialize --console（注意：两个横杠）
2018-10-24T03:06:20.534951Z 0 [System] [MY-013169] [Server] D:\Develop\MySQL\MySQLServer80\bin\mysqld.exe (mysqld 8.0.13) initializing of server in progress as process 9812
2018-10-24T03:06:20.538000Z 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.
2018-10-24T03:06:23.423916Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: lMiZMiu*e43:
2018-10-24T03:06:24.774539Z 0 [System] [MY-013170] [Server] D:\Develop\MySQL\MySQLServer80\bin\mysqld.exe (mysqld 8.0.13) initializing of server has completed

C:\Users\Jadyer>

C:\Users\Jadyer>mysql -uroot -p
Enter password: ************
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.13

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> use mysql;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> set PASSWORD = PASSWORD("xuanyu");
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'PASSWORD("xuanyu")' at line 1
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'xuanyu';
Query OK, 0 rows affected (0.01 sec)

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

mysql> SELECT user, host, plugin, authentication_string FROM mysql.user;
+------------------+-----------+-----------------------+------------------------------------------------------------------------+
| user             | host      | plugin                | authentication_string                                                  |
+------------------+-----------+-----------------------+------------------------------------------------------------------------+
| mysql.infoschema | localhost | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
| mysql.session    | localhost | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
| mysql.sys        | localhost | caching_sha2_password | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED |
| root             | localhost | mysql_native_password | *E1CD6F8619B9BFA1EB9DBA67D110FCEEBA4B08C2                              |
+------------------+-----------+-----------------------+------------------------------------------------------------------------+
5 rows in set (0.00 sec)

mysql>