使用綜述
其他網址
管理MQ（WEB頁面）
給新增的用戶授權
(RabbitMq 本地連接報錯 org.springframework.amqp.AmqpIOException: java.io.IOException_Java_-CSDN博客
啓動報錯
org.springframework.amqp.AmqpIOException: java.io.IOException….
問題原因
解決方法（給rabbitmq新增的用戶授權）
1.打開RabbitMq web管理界面，進入該頁面，點擊用戶名稱
2.點擊 set premission 按鈕，就ok了
再去本地啓動一下項目，使用這個用戶。。是不是發現就沒報錯了。
最後說一下，rabbitmq的這個可視化工具還是挺好用的。
rabbitmqctl
記一次刪除 RabbitMQ 消息的經歷 - 個人文章 - 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
消息處理
刪除消息
開發的過程中，有些事件會因爲代碼的不完善消費失敗，然後就會一直消費，然後一直報錯。當bug修復，把正確的代碼上傳到開發環境，原先遺留的問題消息任然存在，並且會阻塞隊列，讓之後的正常的消息無法讓系統正常的消費。
法1：通過網頁刪除（消息多時會報錯）
找到指定隊列
在下方的 Delete / Purge 中點擊 Delete 或者是 Purge 都可以達到效果（delete：刪除消息與隊列；purge：只刪消息）
缺點：消息多的時候點擊，頁面會卡死。即使沒有卡死也會出現如下對話框：
網上也沒有搜索到什麼有用的答案。只找到一句話，來自：https://blog.csdn.net/u011973...
如果隊列的主節點不可用，則非鏡像隊列的行爲取決於其持久性。在節點恢復正常之前，持久化隊列將不可用。在集羣中其他節點上對主節點不可用的持久化隊列進行任何操作都將失敗
法2：重置RabbitMQ
rabbitmqctl stop_app rabbitmqctl reset rabbitmqctl start_app執行了一次之後確實是有效的。重啓的RabbitMq，然後裏面的消息也確實清空了。
缺點：不僅會清空消息，還會清空所有配置信息。
法3：命令刪除指定的隊列
udo rabbitmqctl purge_queue ${queue_name} 或 rabbitmqctl purge_queue ${queue_name} 或 rabbitmqctl -p ${vhostpath} purge_queue ${queue_name}