- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- RocketMQ 5.x
- RocketMQ 4.x
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Development Guide
- SDK Documentation
- Migration to Cloud
- API Documentation
- FAQs
- TDMQ FOR ROCKETMQ SERVICE LEVEL AGREEMENT
- Contact Us
- Release Notes and Announcements
- Product Introduction
- Purchase Guide
- RocketMQ 5.x
- RocketMQ 4.x
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Development Guide
- SDK Documentation
- Migration to Cloud
- API Documentation
- FAQs
- TDMQ FOR ROCKETMQ SERVICE LEVEL AGREEMENT
- Contact Us
Overview
This document describes how to use Spring Boot Starter to send and receive messages and helps you better understand the message sending and receiving processes.
Prerequisites
You have created the required resources as instructed in Resource Creation and Preparation.
You have learned about the sending and receiving process of general messages.
You have downloaded the demo here or have downloaded one at the GitHub project.
Directions
Sending a message
This process is the same as that of general messages, but you need to pass in the corresponding delay level when calling the sending method.
SendResult sendResult = rocketMQTemplate.syncSend(destination,MessageBuilder.withPayload(message).build(),5000,delayLevel);
The relationship between the delay level and the delay time
The corresponding relationship between other delay levels and specific delay times is as follows:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1s, 5s, 10s, 30s, 1m, 2m, 3m, 4m, 5m, 6m, 7m, 8m, 9m, 10m, 20m, 30m, 1h, 2h;
Consuming a message
This process is the same as that of general messages. No other actions are required.
Yes
No
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