官網下載地址 -> https://dev.mysql.com/downloads/mysql/ 選擇 Windows (x86, 64-bit), ZIP Archive;
解壓文件->配置系統環境變量到bin目錄. 系統變量: MY_SQL57_HOME D:\SYS\ISP\mysql-5.7.36-winx64 Path: %MY_SQL57_HOME\bin
如果電腦缺乏 msvcr120.dll等倆文件,去Microsoft官網(https://www.microsoft.com/zh-cn/download/confirmation.aspx?id=40784)
單機手動下載,有三個.exe文件. 下載 執行;
新建my.ini文件,內容如下.放置到解壓后與 bin平級的目錄下.
[mysql] # 設置mysql客戶端默認字符集 default-character-set=utf8 [mysqld] # 服務端使用的字符集默認為8比特編碼的latin1字符集 character-set-server=utf8 #設置3308端口 默認是3306 port=3308 # 設置mysql的安裝目錄 basedir="D:\SYS\ISP\mysql-5.7.36-winx64" # 設置mysql數據庫的數據的存放目錄 datadir="D:\SYS\ISP\mysql-5.7.36-winx64\data" # 設置mysql數據庫的數據存放臨時文件目錄 tmpdir="D:\SYS\ISP\mysql-5.7.36-winx64\data" log-error="D:\SYS\ISP\mysql-5.7.36-winx64\data\mysql57_error.log" # 設置mysql的socket目錄 socket="D:\SYS\ISP\mysql-5.7.36-winx64\data\mysql.sock" # 允許最大連接數 max_connections=200 # 創建新表時將使用的默認存儲引擎 default-storage-engine=INNODB # 其他先使用默認配置咯~
以管理員的身份運行cmd,切入到bin目錄下---->
1->mysqld --initialize -insecure --user=hj_mysql 創建data目錄,服務命名為 hj_mysql ;
ps:mysqld --initialize -insecure 這個命令會生成無密碼的root用戶,而命令 mysqld --initialize自動生成帶隨機密碼的root用戶
2->mysqld --install hj_mysql --defaults-file="D:\SYS\ISP\mysql-5.7.36-winx64\my.ini"
若報錯: The service already exists! 需要執行以下操作,然后徹底干掉mysql殘留文件,注冊表. 然后再執行安裝
D:\SYS\ISP\mysql-5.7.36-winx64\bin>sc query mysql 查詢mysql服務 mysql/hj_mysql 服務名
SERVICE_NAME: mysql
TYPE : 10 WIN32_OWN_PROCESS
STATE : 1 STOPPED
WIN32_EXIT_CODE : 0 (0x0)
SERVICE_EXIT_CODE : 0 (0x0)
CHECKPOINT : 0x0
WAIT_HINT : 0x0
D:\SYS\ISP\mysql-5.7.36-winx64\bin>sc delete mysql 刪除服務
[SC] DeleteService 成功
D:\SYS\ISP\mysql-5.7.36-winx64\bin>mysqld -install hj_mysql --defaults-file="D:\SYS\ISP\mysql-5.7.36-winx64\bin\my.ini"
Service successfully installed.
ps: 若是報錯 mysql57 服務正在啟動 . mysql57 服務無法啟動。 服務沒有報告任何錯誤。
可運行 mysqld --console 命令.根據里面信息再排錯,或者查看mysql57_error.log日志...
例如:Can't open and lock privilege tables: Table 'mysql.user' doesn't exist 等,若是這個錯,刪除掉data目錄,
執行 mysqld --initialize --user=hj_mysql --console 重新生成data文件.
3->啟動服務 net strat hj_mysql mysql -uroot -p 進入.若老是報錯ERROR 2003 (HY000): Can't connect to MySQL server on 'localhost' (10061),
請千萬主意是不是沒帶端口號...如果改了默認端口的話.. net strat hj_mysql -> mysql -uroot -P3308 -p
也可用免密方式進入再置空密碼,流程如下;
net stop hj_mysql 停止服務 ,然后運行 mysqld --console --skip-grant-tables --shared-memory 如下顯示:
D:\SYS\ISP\mysql-5.7.36-winx64\bin>net stop hj_mysql hj_mysql 服務正在停止. hj_mysql 服務已成功停止。 D:\SYS\ISP\mysql-5.7.36-winx64\bin>mysqld --console --skip-grant-tables --shared-memory 2021-12-07T09:07:54.182983Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2021-12-07T09:07:54.183042Z 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled 2021-12-07T09:07:54.183571Z 0 [Note] mysqld (mysqld 5.7.36) starting as process 6380 ... 2021-12-07T09:07:54.187450Z 0 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions 2021-12-07T09:07:54.188386Z 0 [Note] InnoDB: Uses event mutexes 2021-12-07T09:07:54.188801Z 0 [Note] InnoDB: _mm_lfence() and _mm_sfence() are used for memory barrier 2021-12-07T09:07:54.189158Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2021-12-07T09:07:54.189461Z 0 [Note] InnoDB: Number of pools: 1 2021-12-07T09:07:54.189757Z 0 [Note] InnoDB: Not using CPU crc32 instructions 2021-12-07T09:07:54.191818Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M 2021-12-07T09:07:54.196132Z 0 [Note] InnoDB: Completed initialization of buffer pool 2021-12-07T09:07:54.240463Z 0 [Note] InnoDB: Highest supported file format is Barracuda. 2021-12-07T09:07:54.271125Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables 2021-12-07T09:07:54.271694Z 0 [Note] InnoDB: Setting file '.\ibtmp1' size to 12 MB. Physically writing the file full; Please wait ... 2021-12-07T09:07:54.279638Z 0 [Note] InnoDB: File '.\ibtmp1' size is now 12 MB. 2021-12-07T09:07:54.280919Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active. 2021-12-07T09:07:54.281177Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active. 2021-12-07T09:07:54.281740Z 0 [Note] InnoDB: Waiting for purge to start
再另開一個cmd窗口---> mysql -uroot -p 無密碼直接回車(這可不帶端口號).
D:\SYS\ISP\mysql-5.7.36-winx64\bin>mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.36 MySQL Community Server (GPL) Copyright (c) 2000, 2021, Oracle and/or its affiliates. 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> use mysql Database changed mysql>
密碼置空: mysql -u root -p 直接回車進入. use mysql update user set authentication_string='' where user='root'; flush privileges; exit;
D:\SYS\ISP\mysql-5.7.36-winx64\bin>mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.36 MySQL Community Server (GPL) Copyright (c) 2000, 2021, Oracle and/or its affiliates. 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> mysql> ; ERROR: No query specified mysql> update user set authentication_string='' where user='root'; ERROR 1046 (3D000): No database selected mysql> use mysql Database changed mysql> update user set authentication_string='' where user='root'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit; Bye
關閉免密模式的cmd窗口.啟動服務 net start hj_mysql mysql -uroot -p
修改密碼 alter user 'root'@'localhost' identified with mysql_native_password by '123456';
flush privileges; exit;
mysql> alter user 'root'@'localhost' identified with mysql_native_password by '123456'; Query OK, 0 rows affected (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec) mysql> ps:mysql cmd下若語句寫錯一直->這樣,可 Ctrl+c 同時按退出那錯誤語句.
大功告成~