系统环境：ubuntu16

mysql安装

下载mysql源安装包

curl -LO http://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

安装mysql源

sudo yum localinstall mysql57-community-release-el7-11.noarch.rpm

检查yum源是否安装成功

sudo yum repolist enabled | grep "mysql.*-community.*"
mysql-connectors-community           MySQL Connectors Community              21
mysql-tools-community                MySQL Tools Community                   38
mysql57-community                    MySQL 5.7 Community Server             130

安装mysql

sudo yum install mysql-community-server

安装服务

sudo systemctl enable mysqld

启动服务

sudo systemctl start mysqld

查看服务状态

sudo systemctl status mysqld

mysql默认端口3306
查看mysql端口号

sudo mysql -u root
mysql> show global variables like 'port';
+---------------+-------+
| Variable_name | Value |
+---------------+-------+
| port | 3306 |
+---------------+-------+

安装mysql workbench

sudo aptitude install -y mysql-workbench

运行mysql workbench

sudo mysql-workbench

现在sparl workbench连接mysql数据库会报错

解决方法如下：

更改mysql的root密码

mysql -u root -p

在mysql>后输入

update mysql.user set authentication_string=password('newpassword') where user='root' and host='127.0.0.1' or host='localhost';

更改mysql默认UNIX auth_socket plugin插件

sudo mysql -u root

mysql>USE mysql;
mysql>SELECT User, Host, plugin FROM mysql.user;
+------------------+-----------------------+
| User             | plugin                |
+------------------+-----------------------+
| root             | auth_socket           |
| mysql.sys        | mysql_native_password |
| debian-sys-maint | mysql_native_password |
+------------------+-----------------------+

mysql> USE mysql;
mysql> UPDATE user SET plugin='mysql_native_password' WHERE User='root';
mysql> FLUSH PRIVILEGES;
mysql> exit;

备注：过程中如果报错，注意检查自己的密码是否输入错误