轉自https://blog.csdn.net/hellboy0621/article/details/80458892

1、官網下載對應版本，下載地址為https://dev.mysql.com/downloads/mysql/5.7.html#downloads，我下載的文件為“mysql-5.7.22-winx64.zip”；

2、考慮到數據庫容量會增加，建議解壓縮到可用容量較大的盤符，我解壓縮到D盤；

3、進入解壓縮目錄，新建my.ini文件，內容如下：

1. [mysqld]
2. # set basedir to your installation path
3. basedir=D:/mysql-5.7.22-winx64
4. # set datadir to the location of your data directory
5. datadir=D:/mysql-5.7.22-winx64/data

4、使用cmd進入解壓縮目錄下的bin/目錄下

1. # 安裝mysql服務，安裝完成後，可在右鍵“計算機”-“管理”-“服務”中看到，默認服務名為“MySQL”，也可以在install後面指定服務名稱
2. D:\mysql-5.7.22-winx64\bin>mysqld install
3. Service successfully installed.

1. # 初始化data目錄
2. D:\mysql-5.7.22-winx64\bin>mysqld.exe --initialize

初始化後會在datadir路徑下生成一個*.err的文件，打開如下：

1. 2018-05-27T04:49:08.182952Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2. 2018-05-27T04:49:11.016957Z 0 [Warning] InnoDB: New log files created, LSN=45790
3. 2018-05-27T04:49:11.546958Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
4. 2018-05-27T04:49:11.676958Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 4c70979b-6169-11e8-9db4-00ff13a6d817.
5. 2018-05-27T04:49:11.676958Z 0 [Warning] Gtid table is not ready to be used. Table ‘mysql.gtid_executed‘ cannot be opened.
6. 2018-05-27T04:49:11.696958Z 1 [Note] A temporary password is generated for root@localhost: q&10*I#<fi-w

最後一行“A temporary password is generated for root@localhost: q&10*I#<fi-w”冒號後面的就是臨時密碼；

1. # 啟動MySQL服務
2. D:\mysql-5.7.22-winx64\bin>net start mysql
3. MySQL 服務正在啟動 .
4. MySQL 服務已經啟動成功。

5、修改密碼

後面有兩種方式可以修改密碼，一種是使用剛才生成的臨時密碼登錄修改，另一種是修改配置文件跳過密碼登錄然後修改密碼；

5.1 通過臨時密碼登錄

1. # 使用臨時密碼登錄
2. E:\mysql-5.7.22-winx64\bin>mysql -u root -p
3. Enter password: ************
4. Welcome to the MySQL monitor. Commands end with ; or \g.
5. Your MySQL connection id is 4
6. Server version: 5.7.22
8. Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
10. Oracle is a registered trademark of Oracle Corporation and/or its
11. affiliates. Other names may be trademarks of their respective
12. owners.
14. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
16. # 查看端口號
17. mysql> show global variables like ‘port‘;
18. ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
19. # 通過ALTER語句修改密碼
20. mysql> ALTER user ‘root‘@‘localhost‘ identified by ‘Jiubugaosuni_01‘;
21. Query OK, 0 rows affected (0.00 sec)
23. mysql> SHOW GLOBAL VARIABLES LIKE ‘port‘;
24. +---------------+-------+
25. | Variable_name | Value |
26. +---------------+-------+
27. | port | 3306 |
28. +---------------+-------+
29. 1 row in set, 1 warning (0.01 sec)

5.2 跳過密碼登錄

5.2.1 跳過密碼登錄MySQL

1. # 停止MySQL服務
2. D:\mysql-5.7.22-winx64\bin>net stop mysql
3. MySQL 服務正在停止.
4. MySQL 服務已成功停止。
6. # 卸載MySQL服務
7. D:\mysql-5.7.22-winx64\bin>mysqld remove
8. Service successfully removed.

1. # 編輯my.ini配置文件，在[mysqld]下添加skip-grant-tables
2. [mysqld]
3. # set basedir to your installation path
4. basedir=D:/mysql-5.7.22-winx64
5. # set datadir to the location of your data directory
6. datadir=D:/mysql-5.7.22-winx64/data
7. skip-grant-tables

1. # 安裝MySQL服務
2. D:\mysql-5.7.22-winx64\bin>mysqld install
3. Service successfully installed.
5. # 啟動MySQL服務
6. D:\mysql-5.7.22-winx64\bin>net start mysql
7. MySQL 服務正在啟動 .
8. MySQL 服務已經啟動成功。

5.2.2 無密碼登錄

1. D:\mysql-5.7.22-winx64\bin>mysql -u root -p
2. Enter password:（回車，無需輸入密碼）
3. Welcome to the MySQL monitor. Commands end with ; or \g.
4. Your MySQL connection id is 2
5. Server version: 5.7.22 MySQL Community Server (GPL)
7. Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
9. Oracle is a registered trademark of Oracle Corporation and/or its
10. affiliates. Other names may be trademarks of their respective
11. owners.
13. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
15. mysql>

1. # 在這裏不能使用ALTER語句，否則報錯
2. mysql> ALTER user ‘root‘@‘localhost‘ identified by ‘Jiubugaosuni_01‘;
3. ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this
4. statement

1. # 而應該使用如下命令，設置臨時密碼
2. mysql> use mysql;
3. Database changed
4. mysql> UPDATE user SET authentication_string = password("Jiubugaosuni_01") WHERE user = "root";
5. Query OK, 1 row affected, 1 warning (0.07 sec)
6. Rows matched: 1 Changed: 1 Warnings: 1
8. mysql> FLUSH PRIVILEGES;
9. Query OK, 0 rows affected (0.00 sec)
11. mysql> QUIT;
12. Bye

5.2.3 恢復密碼登錄

1. # 停止MySQL服務
2. D:\mysql-5.7.22-winx64\bin>net stop mysql
3. MySQL 服務正在停止.
4. MySQL 服務已成功停止。
6. # 卸載MySQL服務
7. D:\mysql-5.7.22-winx64\bin>mysqld remove
8. Service successfully removed.

1. # 修改my.ini配置文件，註釋或者刪除skip-grant-tables
2. [mysqld]
3. # set basedir to your installation path
4. basedir=D:/mysql-5.7.22-winx64
5. # set datadir to the location of your data directory
6. datadir=D:/mysql-5.7.22-winx64/data
7. # skip-grant-tables

1. # 安裝MySQL服務
2. D:\mysql-5.7.22-winx64\bin>mysqld install
3. Service successfully installed.
5. # 啟動MySQL服務
6. D:\mysql-5.7.22-winx64\bin>net start mysql
7. MySQL 服務正在啟動 .
8. MySQL 服務已經啟動成功。

5.2.4 登錄並查看端口號

1. # 使用修改的臨時密碼登錄
2. D:\mysql-5.7.22-winx64\bin>mysql -u root -p
3. Enter password: ***************
4. Welcome to the MySQL monitor. Commands end with ; or \g.
5. Your MySQL connection id is 3
6. Server version: 5.7.22
8. Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
10. Oracle is a registered trademark of Oracle Corporation and/or its
11. affiliates. Other names may be trademarks of their respective
12. owners.
14. Type ‘help;‘ or ‘\h‘ for help. Type ‘\c‘ to clear the current input statement.
16. # 必須通過ALTER語句修改密碼才算正式修改密碼成功
17. mysql> show global variables like ‘port‘;
18. ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
19. mysql> ALTER user ‘root‘@‘localhost‘ identified by ‘Jiubugaosuni_01‘;
20. Query OK, 0 rows affected (0.00 sec)
22. mysql> SHOW GLOBAL VARIABLES LIKE ‘port‘;
23. +---------------+-------+
24. | Variable_name | Value |
25. +---------------+-------+
26. | port | 3306 |
27. +---------------+-------+
28. 1 row in set, 1 warning (0.04 sec)
30. mysql> show databases;
31. +--------------------+
32. | Database |
33. +--------------------+
34. | information_schema |
35. | mysql |
36. | performance_schema |
37. | sys |
38. +--------------------+
39. 4 rows in set (0.00 sec)
41. mysql>

6、配置遠程登錄

1. # 賦予全部權限在所有數據庫和所有表上給root用戶在任何主機上使用Jiubugaosuni_01這個密碼登錄
2. mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘Jiubugaosuni_01‘ WITH GRANT OPTION;
3. Query OK, 0 rows affected, 1 warning (0.00 sec)
5. mysql> FLUSH PRIVILEGES;
6. Query OK, 0 rows affected (0.02 sec)

MySQL 5.7.22 免安裝配置