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rocket消息中间件demo

柠檬果然酸 2022-07-12 阅读 41

Base

消费者

import org.apache.rocketmq.client.exception.MQBrokerException;
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.common.message.Message;

/**
* 发送单向消息
*/
public class OneWayProducer {

public static void main(String[] args) throws Exception, MQBrokerException {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group2");
//2.指定Nameserver地址
producer.setNamesrvAddr("127.0.0.1:9876");
//3.启动producer
producer.start();

for (int i = 0; i < 3; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("base1", "Tag3", ("Hello World,单向消息" + i).getBytes());
//5.发送单向消息
producer.sendOneway(msg);

//线程睡1秒
//TimeUnit.SECONDS.sleep(1);
}

//6.关闭生产者producer
producer.shutdown();
}
}

生产者

package com.itheima.mq.rocketmq.base.producer;

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendCallback;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;

import java.util.concurrent.TimeUnit;

/**
* 发送异步消息
*/
public class AsyncProducer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();

for (int i = 0; i < 10; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("base", "Tag2", ("Hello World" + i).getBytes());
//5.发送异步消息
producer.send(msg, new SendCallback() {
/**
* 发送成功回调函数
* @param sendResult
*/
public void onSuccess(SendResult sendResult) {
System.out.println("发送结果:" + sendResult);
}

/**
* 发送失败回调函数
* @param e
*/
public void onException(Throwable e) {
System.out.println("发送异常:" + e);
}
});

//线程睡1秒
TimeUnit.SECONDS.sleep(1);
}

//6.关闭生产者producer
producer.shutdown();
}
}
import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.client.producer.SendStatus;
import org.apache.rocketmq.common.message.Message;

import java.util.concurrent.TimeUnit;

/**
* 发送同步消息
*/
public class SyncProducer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();

for (int i = 0; i < 10; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("springboot-mq", "Tag1", ("Hello World" + i).getBytes());
//5.发送消息
SendResult result = producer.send(msg);
//发送状态
SendStatus status = result.getSendStatus();

System.out.println("发送结果:" + result);

//线程睡1秒
TimeUnit.SECONDS.sleep(1);
}

//6.关闭生产者producer
producer.shutdown();
}
}
  • 消费者
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.common.message.MessageExt;
import org.apache.rocketmq.common.protocol.heartbeat.MessageModel;

import java.util.List;

/**
* 消息的接受者
*/
public class Consumer {

public static void main(String[] args) throws Exception {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("127.0.0.1:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("base1", "*");

//设定消费模式:负载均衡|广播模式
consumer.setMessageModel(MessageModel.BROADCASTING);

//4.设置回调函数,处理消息
consumer.registerMessageListener(new MessageListenerConcurrently() {

//接受消息内容
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("consumeThread=" + Thread.currentThread().getName() + "," + new String(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
//5.启动消费者consumer
consumer.start();
}
}

batch

消费者

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.common.message.MessageExt;

import java.util.List;

public class Consumer {
public static void main(String[] args) throws Exception {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("BatchTopic", "*");

//4.设置回调函数,处理消息
consumer.registerMessageListener(new MessageListenerConcurrently() {

//接受消息内容
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("consumeThread=" + Thread.currentThread().getName() + "," + new String(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
//5.启动消费者consumer
consumer.start();

System.out.println("消费者启动");
}
}

生产者

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.client.producer.SendStatus;
import org.apache.rocketmq.common.message.Message;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;

public class Producer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();


List<Message> msgs = new ArrayList<Message>();


//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg1 = new Message("BatchTopic", "Tag1", ("Hello World" + 1).getBytes());
Message msg2 = new Message("BatchTopic", "Tag1", ("Hello World" + 2).getBytes());
Message msg3 = new Message("BatchTopic", "Tag1", ("Hello World" + 3).getBytes());

msgs.add(msg1);
msgs.add(msg2);
msgs.add(msg3);

//5.发送消息
SendResult result = producer.send(msgs);
//发送状态
SendStatus status = result.getSendStatus();

System.out.println("发送结果:" + result);

//线程睡1秒
TimeUnit.SECONDS.sleep(1);


//6.关闭生产者producer
producer.shutdown();
}

}

delay

生产者

import org.apache.rocketmq.client.exception.MQBrokerException;
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.client.producer.SendStatus;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.remoting.exception.RemotingException;

import java.util.concurrent.TimeUnit;

public class Producer {

public static void main(String[] args) throws InterruptedException, RemotingException, MQClientException, MQBrokerException {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();

for (int i = 0; i < 10; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("DelayTopic", "Tag1", ("Hello World" + i).getBytes());
//设定延迟时间
//msg.setDelayTimeLevel(2);
//5.发送消息
SendResult result = producer.send(msg);
//发送状态
SendStatus status = result.getSendStatus();

System.out.println("发送结果:" + result);

//线程睡1秒
TimeUnit.SECONDS.sleep(1);
}

//6.关闭生产者producer
producer.shutdown();
}

}

消费者

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.common.message.MessageExt;

import java.util.List;

public class Consumer {

public static void main(String[] args) throws Exception {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("DelayTopic", "*");

//4.设置回调函数,处理消息
consumer.registerMessageListener(new MessageListenerConcurrently() {

//接受消息内容
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("消息ID:【" + msg.getMsgId() + "】,延迟时间:" + (System.currentTimeMillis() - msg.getStoreTimestamp()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
//5.启动消费者consumer
consumer.start();

System.out.println("消费者启动");
}
}

filter

生产者

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.MessageSelector;
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.common.message.MessageExt;

import java.util.List;

public class Consumer {
public static void main(String[] args) throws Exception {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("FilterSQLTopic", MessageSelector.bySql("i>5"));

//4.设置回调函数,处理消息
consumer.registerMessageListener(new MessageListenerConcurrently() {

//接受消息内容
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("consumeThread=" + Thread.currentThread().getName() + "," + new String(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
//5.启动消费者consumer
consumer.start();
System.out.println("消费者启动");
}
}

消费者

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.client.producer.SendStatus;
import org.apache.rocketmq.common.message.Message;

import java.util.concurrent.TimeUnit;

public class Producer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();

for (int i = 0; i < 10; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("FilterSQLTopic", "Tag1", ("Hello World" + i).getBytes());

msg.putUserProperty("i", String.valueOf(i));

//5.发送消息
SendResult result = producer.send(msg);
//发送状态
SendStatus status = result.getSendStatus();

System.out.println("发送结果:" + result);

//线程睡1秒
TimeUnit.SECONDS.sleep(2);
}

//6.关闭生产者producer
producer.shutdown();
}

}

tag

生产者

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.common.message.MessageExt;

import java.util.List;

public class Consumer {
public static void main(String[] args) throws Exception {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("FilterTagTopic", "Tag1 || Tag2 ");

//4.设置回调函数,处理消息
consumer.registerMessageListener(new MessageListenerConcurrently() {

//接受消息内容
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("consumeThread=" + Thread.currentThread().getName() + "," + new String(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
//5.启动消费者consumer
consumer.start();
System.out.println("消费者启动");
}
}

消费者

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.client.producer.SendStatus;
import org.apache.rocketmq.common.message.Message;

import java.util.concurrent.TimeUnit;

public class Producer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();

for (int i = 0; i < 3; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("FilterTagTopic", "Tag2", ("Hello World" + i).getBytes());
//5.发送消息
SendResult result = producer.send(msg);
//发送状态
SendStatus status = result.getSendStatus();

System.out.println("发送结果:" + result);

//线程睡1秒
TimeUnit.SECONDS.sleep(1);
}

//6.关闭生产者producer
producer.shutdown();
}

}

order

订单类

import java.util.ArrayList;
import java.util.List;

/**
* 订单构建者
*/
public class OrderStep {
private long orderId;
private String desc;

public long getOrderId() {
return orderId;
}

public void setOrderId(long orderId) {
this.orderId = orderId;
}

public String getDesc() {
return desc;
}

public void setDesc(String desc) {
this.desc = desc;
}

@Override
public String toString() {
return "OrderStep{" +
"orderId=" + orderId +
", desc='" + desc + '\'' +
'}';
}

public static List<OrderStep> buildOrders() {
// 1039L : 创建 付款 推送 完成
// 1065L : 创建 付款
// 7235L :创建 付款
List<OrderStep> orderList = new ArrayList<OrderStep>();

OrderStep orderDemo = new OrderStep();
orderDemo.setOrderId(1039L);
orderDemo.setDesc("创建");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(1065L);
orderDemo.setDesc("创建");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(1039L);
orderDemo.setDesc("付款");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(7235L);
orderDemo.setDesc("创建");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(1065L);
orderDemo.setDesc("付款");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(7235L);
orderDemo.setDesc("付款");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(1065L);
orderDemo.setDesc("完成");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(1039L);
orderDemo.setDesc("推送");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(7235L);
orderDemo.setDesc("完成");
orderList.add(orderDemo);

orderDemo = new OrderStep();
orderDemo.setOrderId(1039L);
orderDemo.setDesc("完成");
orderList.add(orderDemo);

return orderList;
}
}

消费者

import org.apache.rocketmq.client.consumer.DefaultMQPushConsumer;
import org.apache.rocketmq.client.consumer.listener.ConsumeOrderlyContext;
import org.apache.rocketmq.client.consumer.listener.ConsumeOrderlyStatus;
import org.apache.rocketmq.client.consumer.listener.MessageListenerOrderly;
import org.apache.rocketmq.client.exception.MQClientException;
import org.apache.rocketmq.common.message.MessageExt;

import java.util.List;

public class Consumer {
public static void main(String[] args) throws MQClientException {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("OrderTopic", "*");

//4.注册消息监听器
consumer.registerMessageListener(new MessageListenerOrderly() {

@Override
public ConsumeOrderlyStatus consumeMessage(List<MessageExt> msgs, ConsumeOrderlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("线程名称:【" + Thread.currentThread().getName() + "】:" + new String(msg.getBody()));
}
return ConsumeOrderlyStatus.SUCCESS;
}
});

//5.启动消费者
consumer.start();

System.out.println("消费者启动");

}
}

生产者

import org.apache.rocketmq.client.producer.DefaultMQProducer;
import org.apache.rocketmq.client.producer.MessageQueueSelector;
import org.apache.rocketmq.client.producer.SendResult;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.common.message.MessageQueue;

import java.util.List;

public class Producer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
DefaultMQProducer producer = new DefaultMQProducer("group1");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.启动producer
producer.start();
//构建消息集合
List<OrderStep> orderSteps = OrderStep.buildOrders();
//发送消息
for (int i = 0; i < orderSteps.size(); i++) {
String body = orderSteps.get(i) + "";
Message message = new Message("OrderTopic", "Order", "i" + i, body.getBytes());
/**
* 参数一:消息对象
* 参数二:消息队列的选择器
* 参数三:选择队列的业务标识(订单ID)
*/
SendResult sendResult = producer.send(message, new MessageQueueSelector() {
/**
*
* @param mqs:队列集合
* @param msg:消息对象
* @param arg:业务标识的参数
* @return
*/
@Override
public MessageQueue select(List<MessageQueue> mqs, Message msg, Object arg) {
long orderId = (long) arg;
long index = orderId % mqs.size();
return mqs.get((int) index);
}
}, orderSteps.get(i).getOrderId());

System.out.println("发送结果:" + sendResult);
}
producer.shutdown();
}

}

transaction

消费者

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.common.message.MessageExt;

import java.util.List;

/**
* 消息的接受者
*/
public class Consumer {

public static void main(String[] args) throws Exception {
//1.创建消费者Consumer,制定消费者组名
DefaultMQPushConsumer consumer = new DefaultMQPushConsumer("group1");
//2.指定Nameserver地址
consumer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");
//3.订阅主题Topic和Tag
consumer.subscribe("TransactionTopic", "*");


//4.设置回调函数,处理消息
consumer.registerMessageListener(new MessageListenerConcurrently() {

//接受消息内容
@Override
public ConsumeConcurrentlyStatus consumeMessage(List<MessageExt> msgs, ConsumeConcurrentlyContext context) {
for (MessageExt msg : msgs) {
System.out.println("consumeThread=" + Thread.currentThread().getName() + "," + new String(msg.getBody()));
}
return ConsumeConcurrentlyStatus.CONSUME_SUCCESS;
}
});
//5.启动消费者consumer
consumer.start();
System.out.println("生产者启动");
}
}

生产者

import org.apache.commons.lang3.StringUtils;
import org.apache.rocketmq.client.producer.*;
import org.apache.rocketmq.common.message.Message;
import org.apache.rocketmq.common.message.MessageExt;

import java.util.concurrent.TimeUnit;

/**
* 发送同步消息
*/
public class Producer {

public static void main(String[] args) throws Exception {
//1.创建消息生产者producer,并制定生产者组名
TransactionMQProducer producer = new TransactionMQProducer("group5");
//2.指定Nameserver地址
producer.setNamesrvAddr("192.168.25.135:9876;192.168.25.138:9876");

//添加事务监听器
producer.setTransactionListener(new TransactionListener() {
/**
* 在该方法中执行本地事务
* @param msg
* @param arg
* @return
*/
@Override
public LocalTransactionState executeLocalTransaction(Message msg, Object arg) {
if (StringUtils.equals("TAGA", msg.getTags())) {
return LocalTransactionState.COMMIT_MESSAGE;
} else if (StringUtils.equals("TAGB", msg.getTags())) {
return LocalTransactionState.ROLLBACK_MESSAGE;
} else if (StringUtils.equals("TAGC", msg.getTags())) {
return LocalTransactionState.UNKNOW;
}
return LocalTransactionState.UNKNOW;
}

/**
* 该方法时MQ进行消息事务状态回查
* @param msg
* @return
*/
@Override
public LocalTransactionState checkLocalTransaction(MessageExt msg) {
System.out.println("消息的Tag:" + msg.getTags());
return LocalTransactionState.COMMIT_MESSAGE;
}
});

//3.启动producer
producer.start();

String[] tags = {"TAGA", "TAGB", "TAGC"};

for (int i = 0; i < 3; i++) {
//4.创建消息对象,指定主题Topic、Tag和消息体
/**
* 参数一:消息主题Topic
* 参数二:消息Tag
* 参数三:消息内容
*/
Message msg = new Message("TransactionTopic", tags[i], ("Hello World" + i).getBytes());
//5.发送消息
SendResult result = producer.sendMessageInTransaction(msg, null);
//发送状态
SendStatus status = result.getSendStatus();

System.out.println("发送结果:" + result);

//线程睡1秒
TimeUnit.SECONDS.sleep(2);
}

//6.关闭生产者producer
//producer.shutdown();
}
}


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