ERROR 1045 (28000): Access denied for user ‘root’@&

Post author:xfxia
Post published:2023年9月21日
Post category:其他

mysql 用户无法登陆状况

状况如下

mysql -uroot -proot

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

如出现此错误

按照下面操作

1.停止mysqld服务

service mysqld stop

2.以跳过授权的方式启动mysql

mysqld_safe –skip-grant-tables &

3.以root用户登录mysql

mysql -u root

4.进入mysql数据库

mysql> use mysql

5.更新mysql数据库中的user表的root的password字段

mysql> update user set password=PASSWORD(“new_password”) where User=”root”;

6.刷新权限，使其立即生效，之后退出mysql，并重新启动mysql

mysql> flush privileges;

mysql> quit

# service restart

1.[root@shizhan ~]# service mysql stop

Shutting down MySQL.[确定]

2.[root@shizhan ~]# mysqld_safe –skip-grant-tables &

[1] 3571

[root@shizhan ~]# 160404 06:15:30 mysqld_safe Logging to ‘/var/lib/mysql/shizhan.err’.

160404 06:15:30 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql

3.mysql -u root

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 1

Server version: 5.5.48 MySQL Community Server (GPL)

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.

4.mysql> use mysql

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

5.mysql> update user set password=PASSWORD(“root”)where User=”root”

-> ;

Query OK, 4 rows affected (0.00 sec)

Rows matched: 4 Changed: 4 Warnings: 0

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

6.mysql> quit

Bye

7.[root@shizhan ~]# service mysql restart

Shutting down MySQL.160404 06:17:41 mysqld_safe mysqld from pid file /var/lib/mysql/shizhan.pid ended

[确定]

Starting MySQL..[确定]

[1]+ Done mysqld_safe –skip-grant-tables

8.[root@shizhan ~]# mysql -uroot -proot