windows下如何安装和启动MySQL

╰+攻爆jí腚メ 2022-05-24 11:39 262阅读 0赞

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][70]

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

![这里写图片描述][70 1]

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;  
> ![这里写图片描述][70 2]

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  
> ![这里写图片描述][70 3]

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

[70]: /images/20220524/5b73893f939a4e688eb4a641eb209355.png
[70 1]: /images/20220524/3bf6067d063642b68143f1938b0d0365.png
[70 2]: /images/20220524/28db9cd8745b4cb082f8ee18aff49a9d.png
[70 3]: /images/20220524/f006a24e23504c1f8599495993fe30f7.png