MysqL升级8.0以上版本后,在用第三方库github.com/Go-sql-Driver/MysqL打开数据库时会报错this authentication plugin is not supported,这是因为MysqL8.0版本修改了加密方式,所以只要修改一下密码的加密方式就可以了。
首先用root用户进入MysqL,修改root用户的密码和加密方式:这里修改密码为abc345
MysqL> alter user root@localhost identified with MysqL_native_password by 'abc345';
Query OK,0 rows affected (0.13 sec)
MysqL>
MysqL> select host,user,plugin from MysqL.user;
+-----------+------------------+-----------------------+
| host | user | plugin |
+-----------+------------------+-----------------------+
| 127.0.0.1 | Tom | caching_sha2_password |
| localhost | Tom | caching_sha2_password |
| localhost | MysqL.infoschema | caching_sha2_password |
| localhost | MysqL.session | caching_sha2_password |
| localhost | MysqL.sys | caching_sha2_password |
| localhost | root | MysqL_native_password |
+-----------+------------------+-----------------------+
6 rows in set (0.00 sec)
MysqL>
这里总共查询出来6个用户,刚才修改的是第6个,也就是最后一个用户| localhost | root | MysqL_native_password |的密码和加密方式。可以看到,该用户的加密方式MysqL_native_password已经不同于上面的其他5个加密方式了。
MysqL> alter user Tom@127.0.0.1 identified with MysqL_native_password by '456789';
Query OK,0 rows affected (0.03 sec)
MysqL>
查看:
MysqL> select host,plugin from MysqL.user;
+-----------+------------------+-----------------------+
| host | user | plugin |
+-----------+------------------+-----------------------+
| 127.0.0.1 | Tom | MysqL_native_password |
| localhost | Tom | caching_sha2_password |
| localhost | MysqL.infoschema | caching_sha2_password |
| localhost | MysqL.session | caching_sha2_password |
| localhost | MysqL.sys | caching_sha2_password |
| localhost | root | MysqL_native_password |
+-----------+------------------+-----------------------+
6 rows in set (0.00 sec)
MysqL>
之后重启MysqL,再次连接就可以了。