RabbitMQ默认提供了一个guest/guest用户，但是从3.3.0 版本以后该账号只能localhost登陆（User can only log in via localhost），解决办法就是我们通过命令行创建一个管理员账号。
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通过heip命令我们可以找到rabbitmq操作用户和权限相关的命令
Users:
add_user Creates a new user in the internal database. This user will have no permissions for any virtual hosts by default.
authenticate_user Attempts to authenticate a user. Exits with a non-zero code if authentication fails.
change_password Changes the user password
clear_password Clears (resets) password and disables password login for a user
clear_user_limits Clears user connection/channel limits
delete_user Removes a user from the internal database. Has no effect on users provided by external backends such as LDAP
list_user_limits Displays configured user limits
list_users List user names and tags
set_user_limits Sets user limits
set_user_tags Sets user tags
Access Control:
clear_permissions Revokes user permissions for a vhost
clear_topic_permissions Clears user topic permissions for a vhost or exchange
list_permissions Lists user permissions in a virtual host
list_topic_permissions Lists topic permissions in a virtual host
list_user_permissions Lists permissions of a user across all virtual hosts
list_user_topic_permissions Lists user topic permissions
list_vhosts Lists virtual hosts
set_permissions Sets user permissions for a vhost
set_topic_permissions Sets user topic permissions for an exchange
通过以下命令创建一个用户admin，密码为admin@123
rabbitmqctl add_user admin admin@123
创建完成之后通过以下命令设置用户标签为administrator
rabbitmqctl set_user_tags admin administrator
给用户admin赋予权限，授予admin用户可访问虚拟主机 /，并在所有的资源上具备可配置、可写及可读的权限
rabbitmqctl set_permissions -p / admin ".*" ".*" ".*"
这样我们就完成了一个用户的创建，通过以下命令可以看出当前的所有用户
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最后一步，我们就可以用admin登陆管理界面啦
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查看rabbitmq相关命令的方法
# 查看rabbitmq所有命令
rabbitmqctl help
# 查看rabbitmq具体一个命令的描述, 比如add_user
rabbitmqctl help add_user