[Kafka] java use jmx 监 copy Kafka

1 Overview

If you want to use java jmx to monitor kafka, please refer to [Java] java jmx introductory case for concepts related to jmx

Advanced version reference: [Spring] How SpringBoot uses JMX

2.kafkal opens Jmx

First open the kafka port

Under linux

if [ "x$KAFKA_HEAP_OPTS" = "x" ]; then
    export KAFKA_HEAP_O