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ERROR 1045 (28000): Access denied for user 'admin'@'localhost' (using password: YES)

ERROR 1045 (28000): Access denied for user ‘admin‘@‘localhost‘ (using password: YES)

 

解决办法

 

错误描述: Mysql中添加用户之后可能出现登录时提示ERROR 1045 (28000): Access denied for user的错误.删除user.user中值为NULL的,或更新NULL为test 1)delete from user where user is NULL 2)update user set user=‘test‘ where user is NULL.意外的情况: 如果

错误描述: Mysql中添加用户之后可能出现登录时提示ERROR 1045 (28000): Access denied for user的错误.删除user.user中值为NULL的,或更新NULL为test 1)delete from user where user is NULL 2)update user set user=‘test‘ where user is NULL.意外的情况: 如果上述方法没有效果,依然出现空用户,则可以利用图形化用户client删除.

在重装了CentOS后,发觉Mysql一直不好用。

# mysqladmin create dbname 命令老是返回mysqladmin: connect to server at ’localhost’ failed

# mysql -u root@localhost

>create database dbname;

也同样返回错误ERROR 1045 (28000): Access denied for user ’root’@’localhost’ (using password: NO)

# mysql -u root -p

Enter password:

ERROR 1045 (28000): Access denied for user ’root’@’localhost’ (using password: NO)

使用网上介绍的方法修改root用户的密码:

# mysqladmin -uroot -p password ’newpassword’

Enter password:

mysqladmin: connect to server at ’localhost’ failed

error: ’Access denied for user ’root’@’localhost’ (using password: YES)’

现在终于被我找到了解决方法,如下(请先测试方法三,谢谢!):

方法一:

# /etc/init.d/mysql stop(启动Mysql)

# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &

# mysql -u root mysql

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>

mysql>

方法二:

直接使用/etc/mysql/debian.cnf文件中[client]节提供的用户名和密码:

# mysql -udebian-sys-maint -p

Enter password: <输入[client]节的密码>

mysql> UPDATE user SET Password=PASSWORD(’newpassword’) where USER=’root’;

mysql> FLUSH PRIVILEGES;

mysql> quit

# mysql -uroot -p

Enter password: <输入新设的密码newpassword>

mysql>

方法三:

这种方法我没有进行过测试,因为我的root用户默认密码已经被我修改过了,我有空测试一下,把结果告诉你们,谢谢!

# mysql -uroot -p

Enter password: <输入/etc/mysql/debian.cnf文件中[client]节提供的密码>

至此,困惑多时的问题解决了!

ERROR 1045 (28000): Access denied for user 'admin'@'localhost' (using password: YES)