windows下如何安装和启动MySQL

1.下载，解压到自己喜欢的目录，并配置环境变量，在path中添加D:\Program Files\mysql-5.7.22-winx64\bin目录。目录根据自己的存放位置修改
这里写图片描述

2.如果没有my-default.ini 配置文件就自己先创建一个同名的文件然后把下面代码贴进去

# 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 = D:\Program Files\mysql-5.7.22-winx64
datadir = D:\Program Files\mysql-5.7.22-winx64\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 = 2M
# read_rnd_buffer_size = 2M 

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 
#123654
#  初始化的密码

然后找到下面代码，修改对应的目录结构

basedir = D:\Program Files\mysql-5.7.22-winx64
datadir = D:\Program Files\mysql-5.7.22-winx64\data

3.向windows注册mysql服务。必须用管理员权限打开命令行，然后切换到mysql的bin目录下，输入命令：mysqld.exe –install MySql –defaults-file=”D:\Program Files\mysql-5.7.22-winx64\my-default.ini”
【D:\Program Files\mysql-5.7.22-winx64\my-default.ini】改为自己的mysqld的自己配置文件的目录。

提示：Service successfully installed

4、解决密码为空问题
首先通过下面命令执行跳过密码，此命令行会挂起。

mysqld –defaults-file=”D:\Program Files\mysql-5.7.22-winx64\my-default.ini” –console –skip-grant-tables

然后再另开一个命令行，执行下面命令，用root登陆，是因为刚开始没有密码的。

mysql -u root mysql

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继续执行下面2条命令修改密码和刷新权限

update mysql.user set authentication_string=password(‘123456’) where user=’root’ and Host = ‘localhost’;
flush privileges;

最后切换回上个命令界面执行 ctrl + C 结束挂起
5、启动/停止服务

net start mysql 启动服务
net stot mysql 停止服务

6、查看服务启动状态

window+R
services.msc

如果密码过期，执行跳过密码，此命令行会挂起。

mysqld –defaults-file=”D:\Program Files\mysql-5.7.22-winx64\my-default.ini” –console –skip-grant-tables

然后再另开一个命令行，执行下面命令，修改密码期限。

update mysql.user set password_expired=’N’ where user=’root’ and Host = ‘localhost’;
最后结束上个页面的命令 ctrl+Ｃ　然后再执行重启服务

windows下如何安装和启动MySQL

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