[Bug] can't open controller metricsExporter

[baijun44]

Before Creating the Bug Report

• I found a bug, not just asking a question, which should be created in GitHub Discussions.

• I have searched the GitHub Issues and GitHub Discussions of this repository and believe that this is not a duplicate.

• I have confirmed that this bug belongs to the current repository, not other repositories of RocketMQ.

Runtime platform environment

OS: ubuntu 22.04

RocketMQ version

rocketmq 5.1.4

JDK Version

openjdk 1.8

Describe the Bug

add a config "metricsExporterType = PROM" for controller, but it doesn't work.I read source file(ControllerConfig) and found this field 'metricsExporterType' has no 'set method' by passing String type parameter.

Steps to Reproduce

1.add a config "metricsExporterType = PROM"
2.start controller
3.open localhost:5557

What Did You Expect to See?

can open localhost:5557

What Did You See Instead?

can't open localhost:5557

Additional Context

No response

[RongtongJin]

@baijun44 Could you submit a PR to fix the issue？

[baijun44]

@baijun44 Could you submit a PR to fix the issue？

Yes! I will.

[baijun44]

@RongtongJin Please help me review.Thanks!

[iamgd67]

dumplicate to #7491