环境:
系统Windows 10
MySQL-8.0
操作步骤:
- 停止MySQL服务。
net stop MySql80
-
打开mysql.exe和mysqld.exe所在的文件夹,复制路径地址
-
跳过MySql密码验证登录服务,打开命令窗口cmd,进入mysql安装目录下的bin目录,然后输入如下命令:
//8.0版本以下有效
mysqld --skip-grant-tables
//mysqld –skip-grant-tables实测在mysql8.0中已失效,使用如下命令
mysqld --console --skip-grant-tables --shared-memory
-
如果正常执行的话就不能输入了,需要重新打开一个cmd命令窗口,输入mysql命令就可以直接登录了,跳过了密码验证过程。
-
如果不正常执行,那么就需要检查一下你的mysql路径下的文件了,是否缺少data和my.ini这两个文件。
-
接下来我们需要先删除自己的mysql服务。
//根据自己的服务改成相应的名字
sc delete MySql80
-
接下来新建my.ini配置文件代码如下:
//简易版
[mysql]
default-character-set=utf8
[mysqld]
default-storage-engine=INNODB
basedir=C:/Program Files/MySQL/MySQL Server 8.0
datadir=C:/Program Files/MySQL/MySQL Server 8.0/data
//复杂版
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.6/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.
[client]
default-character-set = utf8mb4
[mysql]
default-character-set = utf8mb4
[mysqld]
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_bin
init_connect='SET NAMES utf8mb4'
# 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 = C:\Program Files\MySQL\MySQL Server 8.0
datadir = C:\Program Files\MySQL\MySQL Server 8.0\data
port = 3306
# 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 = 16M
read_rnd_buffer_size = 16M
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
其中basedir和databir记得改成自己mysql安装目录的路径。
-
接着打开cmd窗口,在mysql的bin目录下执行如下语句:
mysqld --initialize-insecure --user=mysql
会自动生成data文件夹。接着再输入如下命令:
//后面的路径改成自己的ini文件的路径,这个操作是安装MySql服务,同时设置绑定my.ini配置文件
mysqld --install "MySql80" --defaults-file="C:\Program Files\MySQL\MySQL Server 8.0\my.ini"
最后打开MySql服务。
net start MySql80
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此时再重新登录mysql 会发现不需要密码就可以登录了,输入更改代码命令 改成你不会忘记的密码即可。
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '123456';
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