调试RocketMQ的源代码

GitHub代码库链接: https://github.com/apache/rocketmq.git

进行编译下载依赖

mvn clean install -Dmaven.test.skip=true

 

调试RocketMQ源码

1．启动NameServer

1.在RocketMQ运行主目录中创建conf、logs、store三个文件夹。

2.配置 ROCKETMQ_HOME

ROCKETMQ_HOME=E:\rocketmq

3.从RocketMQ distribution部署目录中将broker.conf、logback_broker.xml、logback_broker.xml文件复制到conf目录中

修改broker.conf配置文件

brokerClusterName = DefaultCluster
brokerName = broker-a
brokerId = 0
deleteWhen = 04
fileReservedTime = 48
brokerRole = ASYNC_MASTER
flushDiskType = ASYNC_FLUSH
namesrvAddr=127.0.0.1:9876
#存储路径
storePathRootDir=E:\\rocketmq\\store
#commitLog 存储路径
storePathCommitLog=E:\\rocketmq\\storecommitlog
#消费队列存储路径存储路径
storePathConsumeQueue=E:\\rocketmq\\storeconsumequeue
#消息索引存储路径
storePathIndex=E:\\rocketmq\\storeindex
#checkpoint 文件存储路径
storeCheckpoint=E:\\rocketmq\\storecheckpoint
#abort 文件存储路径
abortFile=E:\\rocketmq\\storeabort

 4.启动

2．启动Broker

1.配置ROCKETMQ_HOME

-c E:\rocketmq\conf\broker.conf
ROCKETMQ_HOME=E:\rocketmq

2.启动

测试

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.rocketmq.example.quickstart;

import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.common.RemotingHelper;

/**
 * This class demonstrates how to send messages to brokers using provided {@link DefaultMQProducer}.
 */
public class Producer {
    public static void main(String[] args) throws MQClientException, InterruptedException {

        /*
         * Instantiate with a producer group name.
         */
        DefaultMQProducer producer = new DefaultMQProducer("please_rename_unique_group_name");

        /*
         * Specify name server addresses.
         * 

         *
         * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
         * 
         * {@code
         * producer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
         * }
         * 
         */
        producer.setNamesrvAddr("127.0.0.1:9876");
        /*
         * Launch the instance.
         */
        producer.start();

        for (int i = 0; i < 1000; i++) {
            try {

                /*
                 * Create a message instance, specifying topic, tag and message body.
                 */
                Message msg = new Message("TopicTest" /* Topic */,
                    "TagA" /* Tag */,
                    ("Hello RocketMQ " + i).getBytes(RemotingHelper.DEFAULT_CHARSET) /* Message body */
                );

                /*
                 * Call send message to deliver message to one of brokers.
                 */
                SendResult sendResult = producer.send(msg);

                System.out.printf("%s%n", sendResult);
            } catch (Exception e) {
                e.printStackTrace();
                Thread.sleep(1000);
            }
        }

        /*
         * Shut down once the producer instance is not longer in use.
         */
        producer.shutdown();
    }
}

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.rocketmq.example.quickstart;

import java.util.List;
import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeConcurrentlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerConcurrently;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.consumer.ConsumeFromWhere;
import org.apache.rocketmq.common.message.MessageExt;

/**
 * This example shows how to subscribe and consume messages using providing {@link DefaultMQPushConsumer}.
 */
public class Consumer {

    public static void main(String[] args) throws InterruptedException, MQClientException {

        /*
         * Instantiate with specified consumer group name.
         */
        DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("please_rename_unique_group_name_4");

        /*
         * Specify name server addresses.
         * 

         *
         * Alternatively, you may specify name server addresses via exporting environmental variable: NAMESRV_ADDR
         * 
         * {@code
         * consumer.setNamesrvAddr("name-server1-ip:9876;name-server2-ip:9876");
         * }
         * 
         */
        consumer.setNamesrvAddr("127.0.0.1:9876");
        /*
         * Specify where to start in case the specified consumer group is a brand new one.
         */
        consumer.setConsumeFromWhere(ConsumeFromWhere.CONSUME_FROM_FIRST_OFFSET);

        /*
         * Subscribe one more more topics to consume.
         */
        consumer.subscribe("TopicTest", "*");

        /*
         *  Register callback to execute on arrival of messages fetched from brokers.
         */
        consumer.registerMessageListener(new MessageListenerConcurrently() {

            @Override
            public ConsumeConcurrentlyStatus consumeMessage(List msgs,
                ConsumeConcurrentlyContext context) {
                System.out.printf("%s Receive New Messages: %s %n", Thread.currentThread().getName(), msgs);
                return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
            }
        });

        /*
         *  Launch the consumer instance.
         */
        consumer.start();

        System.out.printf("Consumer Started.%n");
    }
}