解决linux-mysql 登录时，报异常：Access denied for user 'root'@'localhost' (using password: YES)

解决linux-mysql Access denied for user 'root'@'localhost

解决linux-mysql 登录时，报异常：Access denied for user 'root'@'localhost'  (using password: YES)

第一步：停服务

/etc/init.d/mysql stop

或者

service mysqld stop

第二步：跳过密码验证
执行命令行：
# /usr/bin/mysqld_safe --skip-grant-tables
报：
151104 09:07:56 mysqld_safe Logging to '/var/lib/mysql/iZ23dq2wm0jZ.err'.
151104 09:07:56 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

第三步：无密码登录
执行命令行：
mysql -u root 

第四步：

mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';
mysql> FLUSH PRIVILEGES;
mysql> quit
# /etc/init.d/mysql restart
# mysql -uroot -p
Enter password: <输入新设的密码newpassword>