1. Download mysql 5.7.28 (win64) archive
Official website download page, https: //dev.mysql.com/downloads/mysql/5.7.html
2. Prepare mysql-home catalog
New mysql folder in the root directory C,
The compressed package such as bin mysql folder to folder here.
bin: executable commands, such as mysql, mysqld and so on.
docs: mysql stored documents.
include: comprising (header) file, mysql external API interfaces, e.g. mysql.h;
lib: used to store a series of libraries;
share: the character set used to store information, such as language;
3. With the environment variable with Path
Increase system environment variables MYSQL_HOME = C: \ mysql
Edit the system environment variables Path, appending;% MYSQL_HOME% \ bin
4. Configuration and configuration explained my.ini
Create a txt file, rename my.ini, open and edit, fill in the content.
Save as selected encoded as ANSI.
>>>>>>>>
[client]
port = 3306
default-character-set = utf8mb4
[mysql]
default-character-set = utf8mb4
[mysqld]
basedir = C:\mysql
datadir = C:\mysql\data
port = 3306
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
init_connect = 'SET NAMES utf8mb4'
sql_mode = NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
<<<<<<<<
basedir：当前MySQL存放地址，与mysql_home环境变量的值一致。
datadir：数据库存放地址，可指定数据库内容存放目录，推荐在mysql_home下。
port：MySQL服务的监听端口。
配置文件中缺省了端口的使用规则，使用了默认规则。
utf8mb4:在5.5.3以前使用'utf8',在5.5.3以后使用utf8mb4，
它兼容utf8，解决了移动端的表情或者一些4字节emoji存不进数据库的问题。
5.初始化mysql基本库
以管理员运行CMD
mysqld --initialize --user=mysql --console
命令行root@localhost后的随机字符串就是root的临时密码。
注意：每次初始化请先清空data文件夹。
6.注册安装成为mysql服务
mysqld install MySQL --defaults-file="C:\my.ini"
启动时手动指定配置文件。
补充: windows 版本的MySQL 默认首先读取C盘跟目录下的my.ini文件，
然后是my.cnf,
最后在%WINDIR%中找my.ini或my.cnf
7.启动停止mysql
启动命令: net start MySQL
停止命令: net stop MySQL
若提示，正在启动或停止中请稍后片刻再试一次，使用命令强杀。
强杀进程：taskkill /f /t /im mysqld.exe
排查启动错误：mysqld –console
8.修改root密码
mysql -u root -p
提示你输入密码，将第五步的临时密码输入。
SET PASSWORD = PASSWORD('你的新密码');
9.允许外部访问
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '你设置的密码' WITH GRANT OPTION;
flush privileges;
10.配置防火墙入站规则
Windows防火墙-》高级设置-》入站规则-》新建规则-》端口-》TCP特定本地端口-》允许连接-》全选-》自定义规则名-》完成
