Access Denied for user root @localhost 解決方案

問題描述： 
C:\Users\bo.wang> mysql -u root -p 
Enter password: 
ERROR 1045 (28000): Access denied for user ‘root’@’localhost’ (using password: YES)

解決步驟： 
step1:修改mysql配置文件my.int，添加skip-grant-tables並保存。 

step2:重啓mysql服務。 

step3:修改root密碼 
C:\Users\bo.wang>mysql

mysql> use mysql 
Database changed 
mysql> update user set password=password(「123456」) where user=」root」; 
Query OK, 0 rows affected (0.00 sec) 
Rows matched: 1 Changed: 0 Warnings: 0

mysql> flush privileges; 
Query OK, 0 rows affected (0.00 sec)

mysql> exit 

step4:經過navicat或者其餘可視化工具鏈接mysql查看mysql庫裏的user表，修改root用戶的權限（密碼是加密過的，不要亂改） 

step5:從新修改my.ini，註釋skip-grant-tables命令行，保存重啓mysql服務