mysql安装
下载 MySQL 5.7.34
绿色版下载地址: https://dev.mysql.com/downloads/mysql/5.7.html
安装版下载地址: https://dev.mysql.com/downloads/windows/installer/5.7.html
连接中如果不带后面的 版本号.html
就是最新的版本
带版本号和不带版本号区别
绿色版配置
解压目录 放入 C盘
再 MySQL 文件夹中 新建
一个空的文件夹 data
,默认是不带这个文件夹的
新建 my.ini
文件 由于官网从5.7.18开始之后都不在二进制包中提供my-default.ini文件,所以这就需要我们自行创建一个my.ini文件(如果有my-default.ini文件,复制一份,把名称修改成my.ini 即可)
在把下面的配置信息复制到my.ini文件中
# 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]
#skip-grant-tables
# 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 = .....
basedir ="C:\mysql-5.7.34-winx64" # 设置mysql的安装目录
datadir ="C:\mysql-5.7.34-winx64\data" # 设置mysql数据库的数据的存放目录,必须是data,或者是//xxx/data
# 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
#服务端的编码方式
character-set-server=utf8mb4
[client]
#客户端编码方式,最好和服务端保存一致
loose-default-character-set=utf8mb4
[WinMySQLadmin]
Server = "C:\mysql-5.7.34-winx64\bin\mysqld.exe"
配置Mysql的运行环境
配置环境变量 ,增加路径
C:\mysql-5.7.34-winx64\bin
以管理员身份运行命令
mysqld --initialize-insecure --user=mysql
运行之后,mysql文件夹下的data目录中会增加一些内容,原来是空文件夹
配置MySql服务 运行命令,注意,要在bin目录中运行服务安装命令
mysqld -install
如果不是在bin中执行的命令,则服务的可执行文件路径会变成 C:\Program Files 目录中,造成服务无法启动
启动服务
输入命令net start mysql,启动Mysql服务
修改密码
登录mysql后,修改密码(默认密码为空)
(1)以管理员身份打开“命令行窗口”,输入mysql -uroot -p并按下回车键
(2)在弹出Enter password: 时,继续按下回车键,即可登录mysql
(3)输入命令use mysql;
(4)输入命令ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '新密码'; (注意末尾要有分号)
(5)输入命令flush privileges;
(6)输入命令exit;
配置允许外网连接:
(1)以管理员身份打开“命令行窗口”,输入mysql -uroot -p并按下回车键
(2)在弹出Enter password: 时,继续按下回车键,即可登录mysql
(3)输入命令use mysql;
(4)输入命令 update user set host='%' where user='root' and host='localhost'; ; (注意末尾要有分号) 增加允许远程访问的用户或者允许现有用户的远程访问。
给root授予在任意主机(%)访问任意数据库的所有权限。
(5)输入命令exit;
(6)输入命令 net stop mysql 停止服务
(7)输入命令 net stop mysql 启动服务