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环境:
系统Windows 10
MySQL-8.0
操作步骤:
- 停止MySQL服务。
net stop MySql80
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打开mysql.exe和mysqld.exe所在的文件夹,复制路径地址
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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
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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。
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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。
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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
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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/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。
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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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