使用综述
其他网址
管理MQ（WEB页面）
给新增的用户授权
(RabbitMq 本地连接报错 org.springframework.amqp.AmqpIOException: java.io.IOException_Java_-CSDN博客
启动报错
org.springframework.amqp.AmqpIOException: java.io.IOException….
问题原因
解决方法（给rabbitmq新增的用户授权）
1.打开RabbitMq web管理界面，进入该页面，点击用户名称
2.点击 set premission 按钮，就ok了
再去本地启动一下项目，使用这个用户。。是不是发现就没报错了。
最后说一下，rabbitmq的这个可视化工具还是挺好用的。
rabbitmqctl
记一次删除 RabbitMQ 消息的经历 - 个人文章 - SegmentFault 思否
rabbitmqctl --help
Error:
[Usage]
rabbitmqctl [--node <node>] [--timeout <timeout>] [--longnames] [--quiet] <command> [<command options>]
Available commands:
[Help]
help Displays usage information for a command
version Displays CLI tools version
[Nodes]
await_startup Waits for the RabbitMQ application to start on the target node
reset Instructs a RabbitMQ node to leave the cluster and return to its virgin state
rotate_logs Instructs the RabbitMQ node to perform internal log rotation
shutdown Stops RabbitMQ and its runtime (Erlang VM). Monitors progress for local nodes. Does not require a PID file path.
start_app Starts the RabbitMQ application but leaves the runtime (Erlang VM) running
stop Stops RabbitMQ and its runtime (Erlang VM). Requires a local node pid file path to monitor progress.
stop_app Stops the RabbitMQ application, leaving the runtime (Erlang VM) running
wait Waits for RabbitMQ node startup by monitoring a local PID file. See also 'rabbitmqctl await_online_nodes'
[Cluster]
await_online_nodes Waits for <count> nodes to join the cluster
change_cluster_node_type Changes the type of the cluster node
cluster_status Displays all the nodes in the cluster grouped by node type, together with the currently running nodes
force_boot Forces node to start even if it cannot contact or rejoin any of its previously known peers
force_reset Forcefully returns a RabbitMQ node to its virgin state
forget_cluster_node Removes a node from the cluster
join_cluster Instructs the node to become a member of the cluster that the specified node is in
rename_cluster_node Renames cluster nodes in the local database
update_cluster_nodes Instructs a cluster member node to sync the list of known cluster members from <seed_node>
[Replication]
cancel_sync_queue Instructs a synchronising mirrored queue to stop synchronising itself
sync_queue Instructs a mirrored queue with unsynchronised mirrors (follower replicas) to synchronise them
[Users]
add_user Creates a new user in the internal database
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
delete_user Removes a user from the internal database. Has no effect on users provided by external backends such as LDAP
list_users List user names and tags
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
[Monitoring, observability and health checks]
environment Displays the name and value of each variable in the application environment for each running application
list_bindings Lists all bindings on a vhost
list_channels Lists all channels in the node
list_ciphers Lists cipher suites supported by encoding commands
list_connections Lists AMQP 0.9.1 connections for the node
list_consumers Lists all consumers for a vhost
list_exchanges Lists exchanges
list_hashes Lists hash functions supported by encoding commands
list_queues Lists queues and their properties
list_unresponsive_queues Tests queues to respond within timeout. Lists those which did not respond
node_health_check Performs several opinionated health checks of the target node
ping Checks that the node OS process is up, registered with EPMD and CLI tools can authenticate with it
report Generate a server status report containing a concatenation of all server status information for support purposes
schema_info Lists schema database tables and their properties
status Displays status of a node
[Parameters]
clear_global_parameter Clears a global runtime parameter
clear_parameter Clears a runtime parameter.
list_global_parameters Lists global runtime parameters
list_parameters Lists runtime parameters for a virtual host
set_global_parameter Sets a runtime parameter.
set_parameter Sets a runtime parameter.
[Policies]
clear_operator_policy Clears an operator policy
clear_policy Clears (removes) a policy
list_operator_policies Lists operator policy overrides for a virtual host
list_policies Lists all policies in a virtual host
set_operator_policy Sets an operator policy that overrides a subset of arguments in user policies
set_policy Sets or updates a policy
[Virtual hosts]
add_vhost Creates a virtual host
clear_vhost_limits Clears virtual host limits
delete_vhost Deletes a virtual host
list_vhost_limits Displays configured virtual host limits
restart_vhost Restarts a failed vhost data stores and queues
set_vhost_limits Sets virtual host limits
trace_off
trace_on
[Node configuration]
decode Decrypts an encrypted configuration value
encode Encrypts a sensitive configuration value
set_cluster_name Sets the cluster name
set_disk_free_limit Sets the disk_free_limit setting
set_log_level Sets log level in the running node
set_vm_memory_high_watermark Sets the vm_memory_high_watermark setting
[Definitions]
export_definitions Exports definitions in JSON or compressed Erlang Term Format.
import_definitions Imports definitions in JSON or compressed Erlang Term Format.
[Feature flags]
enable_feature_flag Enables a feature flag on target node
list_feature_flags Lists feature flags
[Operations]
close_all_connections Instructs the broker to close all connections for the specified vhost or entire RabbitMQ node
close_connection Instructs the broker to close the connection associated with the Erlang process id
eval Evaluates a snippet of Erlang code on the target node
exec Evaluates a snippet of Elixir code on the CLI node
force_gc Makes all Erlang processes on the target node perform/schedule a full sweep garbage collection
hipe_compile Only exists for backwards compatibility. HiPE support has been dropped starting with Erlang 22. Do not use
[Queues]
delete_queue Deletes a queue
purge_queue Purges a queue (removes all messages in it)
Use 'rabbitmqctl help <command>' to learn more about a specific command
消息处理
删除消息
开发的过程中，有些事件会因为代码的不完善消费失败，然后就会一直消费，然后一直报错。当bug修复，把正确的代码上传到开发环境，原先遗留的问题消息任然存在，并且会阻塞队列，让之后的正常的消息无法让系统正常的消费。
法1：通过网页删除（消息多时会报错）
找到指定队列
在下方的 Delete / Purge 中点击 Delete 或者是 Purge 都可以达到效果（delete：删除消息与队列；purge：只删消息）
缺点：消息多的时候点击，页面会卡死。即使没有卡死也会出现如下对话框：
网上也没有搜索到什么有用的答案。只找到一句话，来自：https://blog.csdn.net/u011973...
如果队列的主节点不可用，则非镜像队列的行为取决于其持久性。在节点恢复正常之前，持久化队列将不可用。在集群中其他节点上对主节点不可用的持久化队列进行任何操作都将失败
法2：重置RabbitMQ
rabbitmqctl stop_app rabbitmqctl reset rabbitmqctl start_app执行了一次之后确实是有效的。重启的RabbitMq，然后里面的消息也确实清空了。
缺点：不仅会清空消息，还会清空所有配置信息。
法3：命令删除指定的队列
udo rabbitmqctl purge_queue ${queue_name} 或 rabbitmqctl purge_queue ${queue_name} 或 rabbitmqctl -p ${vhostpath} purge_queue ${queue_name}