本文mysql的安装环境为win7 64位，mysql版本为MySQL5.7

问题描述：在命令行输入 mysql -u root -p 登录mysql，返回”Can't connect to MySQL server on localhost (10061)”错误

问题原因：在一番谷歌后，查到问题原因是mysql没有启动。

解决方法：

1、将mysql加入到Windows的服务中：切换到mysql安装目录下的bin文件夹，命令行运行"mysqld --install"

1 C:\Program Files\MySQL\MySQL Server 5.7\bin> mysqld --install2 Service successfully installed.

注：此时若使用“net start mysql”成功启动msyql，则无须执行下面步骤

2、初始化mysql数据库，输入“mysqld --initialize --user=root --console”。下面红色文字为初始化后的root 密码

C:\Program Files\MySQL\MySQL Server 5.7\bin>mysqld --initialize --user=root --console

2016-10-29T01:35:44.309833Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see doc

umentation for more details).

2016-10-29T01:35:46.659968Z 0 [Warning] InnoDB: New log files created, LSN=45790

2016-10-29T01:35:47.154996Z 0 [Warning] InnoDB: Creating foreign key constraintsystem tables.

2016-10-29T01:35:47.362008Z 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: 043563f4-9d78-11e6-a8c8-606dc79c383c.

2016-10-29T01:35:47.388009Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.

2016-10-29T01:35:47.401010Z 1 [Note] A temporary password is generated for root@localhost: u).ig.Gd.7hW

3、此时使用“net start mysql”成功启动msyql

4、使用生成的密码登录mysql，通过“set password=password('123456')”修改密码。此处将root密码设置为123456

mysql> set password=password('123456');

Query OK, 0 rows affected, 1 warning (0.00 sec)