MySQL8.0版本的加密方式和MySQL5.0的不一样，连接会报错。
试了很多种方法，终于找到一种可以实现的：
更改加密方式
1.先通过命令行进入mysql的root账户：|
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PS C:\Windows\system32> mysql -uroot -p |
再输入root的密码：
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Enter password: ******
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 18
Server version: 8.0.11 MySQL Community Server - GPLCopyright (c) 2000, 2018, 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> |
2.更改加密方式：
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mysql> ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘password‘ PASSWORD EXPIRE NEVER;
Query OK, 0 rows affected (0.10 sec)
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3.更改密码：该例子中 123为新密码
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mysql> ALTER USER ‘root‘@‘localhost‘ IDENTIFIED WITH mysql_native_password BY ‘123‘;
Query OK, 0 rows affected (0.35 sec)
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4.刷新：
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mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.28 sec)
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// 如果报错ERROR 1396 (HY000): Operation ALTER USER failed for ‘root‘@‘%‘：
则是远程访问权限不正确，先选择数据库，查看一下再更改：
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mysql> use mysql;Database changed
mysql> select user,host from user;
+------------------+-----------+
| user | host |
+------------------+-----------+
| mysql.infoschema | localhost || mysql.session | localhost || mysql.sys | localhost || root | localhost |+------------------+-----------+
5 rows in set (0.00 sec)
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