EMQX v5.1 Documentation
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Topics and subscription

来源 emqx.io 浏览 1 扫码 打印 2026-10-24 21:18:01
  • Topics and subscription
    • Topics and Subscriptions

Topics and subscription

Topics and Subscriptions

This chapter will introduce how to set and manage topics and subscriptions with EMQX Dashboard.

  • Topics
  • Subscriptions
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  • Introduction
  • Get Started
    • What’s New
    • Operating Limitations
  • Installation
    • Deploy with Docker
    • Debian
    • Ubuntu
    • CentOS/RHEL
    • Amazon Linux 2
    • macOS
    • EMQX on Kubernetes
    • Windows
    • Install from Source code
    • Rolling Upgrades
    • Migrate from V4
  • Clustering
    • Architecture
    • Create an Cluster
    • Cluster Security
    • Configure Load Balancer
    • Performance and Tuning
      • Performance Tuning (Linux)
      • Performance Test
  • Access Control
    • Authentication
      • Password based
        • Use Built-in Database
        • Integrate with MySQL
        • Integrate with PostgreSQL
        • Integrate with Redis
        • Integrate with MongoDB
        • Use HTTP Service
      • JWT Authentication
      • MQTT 5.0 Enhanced Authentication
      • Use HTTP API to Manage User Data
    • Authorization
    • Banned Client
  • Publish/Subscribe
    • MQTT Core Concepts
    • Test with MQTT Clients
    • Shared Subscription
    • Retained Message
    • Will Message
    • Delayed Publish
    • Auto Subscribe
    • Exclusive Subscription
  • Client SDK
    • Connect via C SDK
    • Connect via Java SDK
    • Connect via Go SDK
    • Connect via Python SDK
    • Connect via JavaScript SDK
  • MQTT over QUIC
    • Features and Benefits
    • Use MQTT over QUIC
  • Rules
    • Create Rules
    • Rule SQL Reference
    • Data Sources and Fields
    • Built-in SQL Functions
    • JQ Functions
  • Data Integration
    • Ingest Data into HTTP Server
    • Bridge Data into MQTT Broker
    • Stream Data into Apache Kafka
    • Stream Data into Apache Pulsar
    • Ingest Data into InfluxDB
    • Ingest Data into MySQL
    • Ingest Data into Redis
    • Ingest Data into GCP Pub/Sub
    • Ingest Data into MongoDB
    • Ingest Data into PostgreSQL
    • Ingest Data into DynamoDB
    • Ingest Data into ClickHouse
    • Ingest Data into Cassandra
    • Ingest Data into TDengine
    • Bridge Data into RocketMQ
    • Ingest Data into Oracle Database
    • Ingest Data into Microsoft SQL Server
    • Ingest Data into Apache IoTDB
    • Ingest Data into OpenTSDB
    • Ingest Data into RabbitMQ
  • Network and TLS
    • Enable SSL/TLS Connection
    • Client TLS
    • Enable PSK Authentication
    • Obtain SSL/TLS Certificates
    • CRL Check
    • OCSP Stapling
  • Command Line Interface
  • REST API
  • EMQX Dashboard
    • Dashboard Home Page
    • Connections
    • Topics and subscription
      • Topics
      • Subscriptions
    • Retained Messages
    • Access Control
      • Authentication
      • Authorization
      • Banned Clients
    • Data Integration
      • Data Bridge
      • Rules
      • Flows
    • Management
    • Extensions
    • Diagnose
    • System
  • Configuration
    • Cluster
    • Listener
    • MQTT
    • Flapping
    • Limiter
    • Logs
    • Prometheus
    • Dashboard
    • Configuration Manual
  • Backup and Restore
  • Rate Limit
  • Logs and Observability
    • Statistics and Metrics
    • Alarm
    • Logs
    • Topic Metrics
    • Slow Subscriptions
    • Log Trace
    • System Topic
    • Integrate with Prometheus
  • Multi-Protocol Gateway
    • STOMP Gateway
    • MQTT-SN Gateway
    • CoAP Gateway
    • LwM2M Gateway
  • Plugin and Extension
    • Hooks
    • Plugins
    • gRPC Hook Extension
  • MQTT Essentials
    • Publish/Subscribe Model
    • Session and Message Expiration
    • Keep Alive
    • MQTT QoS
    • Retained Messages
    • Will Message
    • Shared Subscription
    • Topic Rewrite
  • Telemetry
  • FAQ
  • Design and Implementation
    • EMQX Clustering
    • In-flight and Queue
    • Message Retransmission
  • Change log
  • Technical Support
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