MySQL环境部署

阅读目录：

http://dev.mysql.com/downloads/mysql/

可以看到上图，MySQL5.7它没有data目录，如果没有data目录，安装后启动的时候就会报这个错：

D:\\Service\\mysql57\\bin>net start mysql
MySQL 服务正在启动 .
MySQL 服务无法启动。

服务没有报告任何错误。

请键入 NET HELPMSG 3534 以获得更多的帮助。

为了避免这个错误，需要使用命令生成data文件夹，按如下步骤安装

1. 进入dos的命令行，一定要用administrator进入。

2. 进入MySQL的bin目录，输入mysqld –install可以安装MySQL

D:\\>cd D:\\Service\\mysql57\\bin

D:\\Service\\mysql57\\bin\>mysqld -install
Service successfully installed.

3. 输入以下命令，可以初始化MySQL数据库，初始化了之后，会打印出MySQL的默认生成的密码，下面标红了的就是默认生成的密码。

D:\\Service\\mysql57\\bin>mysqld --initialize --user=root --console
2015\-12\-20T08:13:45.264865Z 0 \[Warning\] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit\_defaults\_for\_timestamp server option (see documentation for more details).
2015\-12\-20T08:13:45.854579Z 0 \[Warning\] InnoDB: New log files created, LSN=45790
2015\-12\-20T08:13:45.998772Z 0 \[Warning\] InnoDB: Creating foreign key constraint system tables.
2015\-12\-20T08:13:46.098118Z 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: 9755c3ea-a6f1-11e5-81a3-74d02b122fb3.
2015\-12\-20T08:13:46.121617Z 0 \[Warning\] Gtid table is not ready to be used. Table 'mysql.gtid\_executed' cannot be opened.
2015\-12\-20T08:13:46.135153Z 1 \[Note\] A temporary password is generated for root@localhost: g!gRw!d%M0Sj

初始化了以后，可以看到MySQL目录下，多了data目录

4. 启动MySQL服务

D:\\Service\\mysql57\\bin>net start mysql
MySQL 服务正在启动 .
MySQL 服务已经启动成功。

5. 使用默认生成的密码，进入mysql

D:\\Service\\mysql57\\bin>mysql -u root -p
Enter password: \*\*\*\*\*\*\*\*\*\*\*\*
Welcome to the MySQL monitor.  Commands end with ; or \\g.
Your MySQL connection id is 4
Server version: 5.7.10

Copyright (c) 2000, 2015, 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\>

6. 进入了mysql就可以修改默认密码了（我把默认密码修改成了root）

mysql> set password = password('root') ;

这个时候，Windows下的MySQL环境就已经安装好了。

，如有侵权，请联系删除。