MySQL 8 安装与使用
下载
https://dev.mysql.com/downloads/mysql/ 压缩版(免安装)
https://dev.mysql.com/downloads/installer/ 安装版 
解压
解压到任意目录 如 D:\software\mysql\mysql-8.0.15 并在目录下新建data文件夹
初始化和启动
打开bin 目录 在地址栏输入cmd回车进入命令行
初始化mysql,初始化时会在命令行生成初始随机密码，此处为ro*cdj(iZ9t5
mysqld --initialize --console
–console表示输入日志
初始化完成后会在data目录生成一堆文件
然后输入mysqld启动服务(或者mysqld --console)
Microsoft Windows [版本 10.0.15063]
(c) 2017 Microsoft Corporation。保留所有权利。
D:\software\mysql\mysql-8.0.15\bin>mysqld --initialize --console
2019-06-28T06:05:34.609135Z 0 [System] [MY-013169] [Server] D:\software\mysql\mysql-8.0.15\bin\mysqld.exe (mysqld 8.0.15) initializing of server in progress as process 5668
2019-06-28T06:06:27.426336Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: ro*cdj(iZ9t52019-06-28T06:06:50.996143Z 0 [System] [MY-013170] [Server] D:\software\mysql\mysql-8.0.15\bin\mysqld.exe (mysqld 8.0.15) initializing of server has completed
D:\software\mysql\mysql-8.0.15\bin>mysqld
新开一个命令行窗口
Microsoft Windows [版本 10.0.15063]
(c) 2017 Microsoft Corporation。保留所有权利。
D:\software\mysql\mysql-8.0.15\bin>mysql -u root -p
Enter password: ************
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 12
Server version: 8.0.15
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> alter user 'root'@'localhost' identified by 'password';
Query OK, 0 rows affected (0.17 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.03 sec)
mysql>
可以看到，此处会让你修改初始密码，我们修改密码为password，然后就可以正常使用了
如果要关闭服务，只需要关闭前面打开的mysqld命令行窗口就行了
如果你觉得不方便可以添加为系统服务,后续就可以像系统服务一样管理了
不过此命令需要以管理员身份运行cmd窗口执行
# 需要在mysql bin目录下执行
mysqld --install
# 开启
net start mysql
# 关闭
net stop mysql
基本操作
create user 'luodeng'@'%' identified by '123456';
create database spring;
grant all privileges on spring.* to 'luodeng'@'%' with grant option;
flush privileges;
use spring;
create table study
(
id bigint auto_increment comment 'id' primary key,
create_time datetime null comment '创建时间',
name varchar(16) null comment '名称'
);
insert into study (name,create_time)values ('test',now());
select * from study;
Microsoft Windows [版本 10.0.15063]
(c) 2017 Microsoft Corporation。保留所有权利。
D:\software\mysql\mysql-8.0.15\bin>mysql -u root -p
Enter password: ********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 84
Server version: 8.0.15 MySQL Community Server - GPL
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create user 'luodeng'@'%' identified by '123456';
Query OK, 0 rows affected (0.15 sec)
mysql> create database spring;
Query OK, 1 row affected (0.13 sec)
mysql> grant all privileges on spring.* to 'luodeng'@'%' with grant option;
Query OK, 0 rows affected (0.07 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.04 sec)
mysql> use spring;
Database changed
mysql> create table study
-> (
-> id bigint auto_increment comment 'id' primary key,
-> create_time datetime null comment '创建时间',
-> name varchar(16) null comment '名称'
->
-> );
Query OK, 0 rows affected (1.60 sec)
mysql> insert into study (name,create_time)values ('test',now());
Query OK, 1 row affected (0.20 sec)
mysql> select * from study;
+----+---------------------+------+
| id | create_time | name |
+----+---------------------+------+
| 1 | 2019-06-28 17:04:48 | test |
+----+---------------------+------+
1 row in set (0.00 sec)
mysql>
JDBC连接
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
public class MySQLTest {
public static void main(String []args) {
Connection conn = null;
PreparedStatement ps = null;
ResultSet rs = null;
try {
Class.forName("com.mysql.cj.jdbc.Driver");
conn =DriverManager.getConnection("jdbc:mysql://localhost:3306/spring?serverTimezone=UTC","luodeng","123456");
ps = conn.prepareStatement("select id,name,create_time from study;");
rs = ps.executeQuery();
while(rs.next()) {
int num = rs.getInt("id");
String name = rs.getString("name");
System.out.print(num+"\t"+name);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
注意MySQL版本，要使用8开头的
mysql
mysql-connector-java
8.0.16
想了解更详细安装说明可以阅读官方文档
https://dev.mysql.com/doc/refman/8.0/en/windows-install-archive.html
https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/windows-install-archive.html