windows 安装mysql 和不能通过ip访问到数据库
一、确认windows 是否已经安装mysql
1.按【Win+R】打开运行
2.输入【services.msc】打开服务
3、在服务列表中查找MySQL,如果有mysql服务则表示Windows已经安装MySQL,如果没有MySQL服务则表示Windows没有安装MySQL


二、下载MySQL 安装包
1、mysql 官网下载地址 https://dev.mysql.com/downloads/mysql/

2.选择 No thanks, just start my download.

三.添加配置文件
1.将下载的zip包,解压到想要安装的目录下

2.进入解压后的目录,在bin同等级目录下新建my.ini

3.编辑my.ini,将以下配置粘贴到my.ini
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# 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.  [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.# 设置mysql的安装目录# basedir = D:/mysql-8.0.33-winx64/mysql-8.0.33-winx64basedir = C:/software/mysql-8.1.0-winx64# 设置mysql数据库的数据的存放目录# datadir = D:/mysql-8.0.33-winx64/mysql-8.0.33-winx64/datadatadir = C:/software/mysql-8.1.0-winx64/data# 设置3306端口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  # 允许最大连接数max_connections = 200# 允许连接失败的次数。这是为了防止有人从该主机试图攻击数据库系统max_connect_errors = 10# 服务端使用的字符集默认为UTF8character-set-server = utf8mb4# 创建新表时将使用的默认存储引擎default-storage-engine = INNODB# 默认使用“mysql_native_password”插件认证default_authentication_plugin = mysql_native_password[mysql]# 设置mysql客户端默认字符集default-character-set = utf8mb4[client]# 设置mysql客户端连接服务端时默认使用的端口port=3306default-character-set = utf8mb4[mysqld]skip-grant-tables | 
4.编辑my.ini,修改basedir 和 datadir

四 、安装MySQL
注意说明:如果已安装,卸载掉之前老版本,命令:1、mysqld -nt-remove 移除
1、管理员运行cmd,进入bin目录

2、生成初始化密码
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mysqld --initialize --console | 

3、执行第二条命令,安装mysql服务
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mysqld --install mysql | 

4、启动mysql服务 命令启动:net start mysql

五、修改root 密码
1.在MySQL安装目录下的bin目录下,启动cmd,进入命令提示符后执行以下命令

2.修改root密码为:123456
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ALTER USER 'root'@'localhost' IDENTIFIED BY '123456'; | 

3. 创建新的管理员账号
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create user 'admin'@'localhost' identified by 'admin'; | 
4. 授权管理员账号
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GRANT ALL PRIVILEGES ON *.* TO 'admin'@'localhost';FLUSH PRIVILEGES; | 
5. 使用管理员账号登录

二、常见问题(不能通过ip连接到数据库)
解决办法:1修改访问权限即可。
打开cmd,进入mysql


                
            
        
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