解决问题-ERROR 1044 (42000) Access denied for user ''@'localhost' to database 'mysql

提示：ERROR 1044 (42000): Access denied for user ''@'localhost' to database 'mysql'。前两天也出现过这个问题，网上找了一个比较流行的方法（见方法一），搞定了。今天又用这个试了试，却搞不定，在网上找了半天，终于发现是因为mysql数据库的user表里，存在用户名为空的账户即匿名账户，导致登录的时候是虽然用的是root，但实际是匿名登录的，通过错误提示里的''@'localhost'可以看出来，于是解决办法见方法二。

方法一：
1.关闭mysql
   # service mysqld stop
2.屏蔽权限
   # mysqld_safe --skip-grant-table
   屏幕出现： Starting demo from .....
3.新开起一个终端输入
   # mysql -u root mysql
   mysql> UPDATE user SET Password=PASSWORD('newpassword') where USER='root';
   mysql> FLUSH PRIVILEGES;//记得要这句话，否则如果关闭先前的终端，又会出现原来的错误
   mysql> \q

方法二：
1.关闭mysql
   # service mysqld stop
2.屏蔽权限
   # mysqld_safe --skip-grant-table
   屏幕出现： Starting demo from .....
3.新开起一个终端输入
   # mysql -u root mysql
   mysql> delete from user where USER='';
   mysql> FLUSH PRIVILEGES;//记得要这句话，否则如果关闭先前的终端，又会出现原来的错误
   mysql> \q

转载于:https://blog.51cto.com/xin521long/1832435

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