數據庫連接異常
1045 Access denied for user 'root'@'localhost' (using password:YES)
這種問題的本質是用戶密碼出現錯誤
解決方案
1.找到MySQL安裝路徑下的my.ini文件
在mysqld這個位置，添加skip-grant-tables
skip-grant-tables作為啟動參數的作用：MYSQL服務器不加載權限判斷，任何用戶都能訪問數據庫。啟用這個參數之后，數據庫的安全性會降低。
3.使用mysql命令修改
修改完成后，記得刪除skip-grant-tables
Windows PowerShell
版權所有 (C) Microsoft Corporation。保留所有權利。
PS C:\Windows\system32> mysql -u root -p
Enter password:#這個地方直接回車
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.5.40 MySQL Community Server (GPL)
Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
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.
mysql> use mysql
Database changed
mysql> update user set password=password("root") where user="root";
Query OK, 3 rows affected (0.00 sec)
Rows matched: 3 Changed: 3 Warnings: 0
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> select user,host,password from user;
+------+-----------+-------------------------------------------+
| user | host | password |
+------+-----------+-------------------------------------------+
| root | localhost | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| root | 127.0.0.1 | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| root | ::1 | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B |
| | localhost | |
+------+-----------+-------------------------------------------+
4 rows in set (0.00 sec)
mysql>
3.windows重啟服務
