怎么win10 MySQL8.0配置下使用mysqldump报错
我win10上用mysql installer安装了mysql 8.0，我在cmd中（未进入mysql界面）使用mysqldump复制数据库时报错，代码如下：D:\MYSQL Program Files\MySQL\MySQL Server 8.0\bin>mysqldump -uroot -proot --databases jack --tables images > D:/download/user.sql
mysqldump: Using a password on the command line interface can be insecure.
mysqldump: Got error: 1045: Access denied for user 'root'@'localhost' (using password: YES) when trying to connect
我在网上搜索了后的问题怎么解决，给出的答案有
#第一种方法、 修改数据库配置文件
#有些在/etc/my.cnf，有些是在/etc/my.conf
#我们需要在部分添加脚本：
host=localhost
user=数据库用户
password='数据库密码'
#第二种、 修改命令
#现在就可以用上面的命令进行导出了，虽然还是有错误提示，但是是不影响导出的。
#可以在上面的命令中加入了–defaults-extra-file=/etc/my.cnf
/usr/local/server/mysql/bin/mysqldump--defaults-extra-file=/etc/my.cnf -h127.0.0.1 -uroot -proot dbname > test.sql
但我用mysql installer安装mysql server中的etc只有mysqlrouter.conf.sample一个文件，里面的内容如下，但是并没有my.cnf文件，我是需要自己创建一个吗？
# Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2.0,
# as published by the Free Software Foundation.
#
# This program is also distributed with certain software (including
# but not limited to OpenSSL) that is licensed under separate terms,
# as designated in a particular file or component or in included license
# documentation.The authors of MySQL hereby grant you an additional
# permission to link the program and your derivative works with the
# separately licensed software that they have included with MySQL.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
# GNU General Public License, version 2.0, for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301USA
#
# MySQL Router configuration file
#
# Documentation is available at
# http://dev.mysql.com/doc/mysql-router/en/
logging_folder = %PROGRAMDATA_FOLDER%
plugin_folder = %INSTALL_FOLDER%/lib
runtime_folder = %PROGRAMDATA_FOLDER%
config_folder = %PROGRAMDATA_FOLDER%
level = INFO
# If no plugin is configured which starts a service, keepalive
# will make sure MySQL Router will not immediately exit. It is
# safe to remove once Router is configured.
interval = 60
你是连接xshell远程工具执行的吧，你没有把数据库的连接权限放开给外网访问，你需要修改mysql数据库下的user表中的user=root的host为%
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