support simple consumer supports subscribing to multiple topics

[panzhi33]

What is the purpose of the change

XXXXX

Brief changelog

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Verifying this change

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[RockteMQ-AI]

Issue Evaluation

Category: enhancement | Status: Evaluated

This is a feature request to support SimpleConsumer subscribing to multiple topics simultaneously. Currently, SimpleConsumer in rocketmq-spring is limited to single-topic subscription.

Feasibility: feasible
Scope: rocketmq-spring-boot-starter, SimpleConsumer configuration and listener registration
Compatibility: additive change, no breaking changes expected

This aligns with the v5 client SDK SimpleConsumer design which already supports multi-topic consumption. The spring starter should expose this capability through configuration.

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Automated evaluation by github-manager-bot

[RockteMQ-AI]

Hi @panzhi33, thanks for this contribution adding multi-topic subscription support for the simple consumer.

A few things need attention before this can be reviewed:

1. PR description is incomplete — The template placeholders (XXXXX) haven't been filled in. Please update the description with:

   • What the change does and why
   • How to verify the change
   • Any relevant issue references

2. This PR is 5 months old — Could you confirm this is still actively being worked on? If the feature is no longer needed, please close the PR.

3. Typo in module name — The sample module is named rocketmq-v5-client-consume-simple-subscribe-muliti-topic-demo (note: muliti should be multi).

Please update the PR description and we can proceed with a proper review.

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Automated notification by github-manager-bot

[RockteMQ-AI]

Summary

Extends SimpleConsumer configuration to support subscribing to multiple topics with per-topic filter expressions, replacing the previous single-topic limitation. Good architectural improvement.

Findings

• [Critical] samples/pom.xml — duplicate module entry will break Maven build
• [Warning] Module name typo: "muliti" → "multi"
• [Warning] No unit tests for the new multi-topic subscription logic
• [Warning] PR description contains placeholder text (XXXXX) — please fill in the actual change summary

Suggestions

1. Fix the duplicate module entry in samples/pom.xml
2. Add at least one unit test verifying multi-topic subscription configuration parsing
3. Fill in the PR description with actual change details

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Automated review by github-manager-bot

[RockteMQ-AI]

This module is listed twice — rocketmq-v5-client-consume-simple-subscribe-muliti-topic-demo appears on both line 38 and 39. This will cause a Maven build error (Malformed POM). Please remove the duplicate entry.

[RockteMQ-AI]

Typo in module name: muliti should be multi. Consider renaming the directory and module to rocketmq-v5-client-consume-simple-subscribe-multi-topic-demo.