今天下了个 MySQL8.0，发现Navicat连接不上，总是报错1251；
原因是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
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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 - GPL
Copyright (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)
|
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)
|