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操作系统:WINDOWS7 系统 数据库版本:mysql 5.1 提示: mysql ERROR 1045 access denied for user 'root'@'localhost' using password yes/no 通过localhost和127.0.0.1访问没有问题,用IP访问出现这个错误 1. 管理员登陆系统,停止 MySQL 服务或者结束 MyS

操作系统:WINDOWS7 系统

数据库版本:mysql 5.1
提示:mysql ERROR 1045 access denied for user 'root'@'localhost' using password yes/no
通过localhost和127.0.0.1访问没有问题,用IP访问出现这个错误
1. 管理员登陆系统,停止 MySQL 服务或者结束 MySQL 进程。
2. 启动 WINDOWS 的命令行窗口(即通常的 DOS 窗口:运行cmd),切换到你的 “MySQL\bin” 目录下。
例如我的是 “D:\Program Files\MySQL\MySQL Server 5.2\bin”,然后执行下面的粗体的命令:(注意你的 “my.ini” 位置)
Microsoft Windows XP [版本 5.1.2600]

C:\>cd D:\Program Files\MySQL\MySQL Server 5.2\bin
C:\>d:
D:\Program Files\MySQL\MySQL Server 5.2\bin>mysqld --defaults-file="D:\Program Files\MySQL\MySQL Server 5.2\my.ini" --console --skip-grant-tables

100608 9:04:12 InnoDB: Started; log sequence number 0 46409

100608 9:04:12 [Note] mysqld: ready for connections.
Version: '5.2.0-falcon-alpha-community' socket: '' port: 3306 MySQL Community
Server (GPL)
100608 9:06:57 [Warning] Found invalid password for user: 'root@localhost'; Ign
oring user
只要出现上面信息,就说明 MySQL 已经起来了。

3. 不关闭此命令行窗口,重新打开一个命令行窗口,同样切到 “MySQL\bin” 目录下,然后执行下面的粗体的命令:
Microsoft Windows XP [版本 5.1.2600]

C:\>cd D:\Program Files\MySQL\MySQL Server 5.2\bin
C:\>d:
D:\Program Files\MySQL\MySQL Server 5.2\bin>mysql -u root mysql
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.2.0-falcon-alpha-community MySQL Community Server (GPL)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
然后,就是重新设置密码了!
mysql> UPDATE user SET Password=PASSWORD('root') where USER='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
mysql> quit
Bye
4. 好了到此步,可以关闭第一个 DOS 窗口了(关闭服务)。打开系统服务控制窗口(控制面板--管理工具--服务),启动 MySQL 服务。
5. 在剩下的第二个 DOS 窗口中,用新的 ROOT 密码连接 MySQL。
D:\Program Files\MySQL\MySQL Server 5.2\bin>mysql -u root -p
Enter password: ****
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.2.0-falcon-alpha-community-nt MySQL Community Server (GPL)
Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
mysql> quit
Bye

至此,系统恢复 ROOT 用户管理权限完成,就是管理员密码的问题,奇怪,官方安装的时候不给出解决方法,貌似已存在很久了。。。

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