二、Rabbitmq基本使用 SpringBoot整合Rabbit SpringCloud Stream+Rabbit
四、docker中使用rabbitmq
1. 搭建和启动
使用地址：rabbitmq docker
#1. 拉去rabbitmq的镜像
docker pull hub.c.163.com/library/rabbitmq:3.6.11-management
#2. 由于rabbitmq远程访问是不允许guest的，所以启动时候需要设置一个用户名和密码
docker run -d --hostname my-rabbit --name some-rabbit -e RABBITMQ_DEFAULT_USER=admin -e RABBITMQ_DEFAULT_PASS=admin -p 15672:15672 -p 5672:5672 hub.c.163.com/library/rabbitmq:3.6.11-management
# 提示信息：d525b1c1004f50284ca5bab76e8e5e2fea55462b72d9f923cea0da1a29e9aa9dnetstat在浏览器中访问：192.168.186.135:15672然后输入用户名和密码
2. java Hello world
简单的一对一生产消息
官网地址示例
1.引入 pom.xml
<dependency>
<groupId>com.rabbitmqgroupId>
<artifactId>amqp-clientartifactId>
<version>5.0.0version>
dependency>2.消息提供者
package com.itcloud.concurrency.rabbitmq;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
public class MessageProvider {
private static final String HOST = "192.168.186.135";
private static final int PORT = 5672; // rabbitmq端口是5672
private static final String USERNAME = "admin";
private static final String PASSWORD = "admin";
private static final String QUEUE_NAME = "hello";
public static void main(String[] args) throws Exception {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost(HOST);
factory.setPort(PORT);
factory.setUsername(USERNAME);
factory.setPassword(PASSWORD);
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
String message = "hello world";
channel.basicPublish("", QUEUE_NAME, null, message.getBytes());
System.out.println(" 生产消息：'" + message + "'");
}
}3.消费端
package com.itcloud.concurrency.rabbitmq;
import java.io.IOException;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.Consumer;
import com.rabbitmq.client.DefaultConsumer;
import com.rabbitmq.client.Envelope;
import com.rabbitmq.client.AMQP.BasicProperties;
public class MessageConsumer {
private static final String HOST = "192.168.186.135";
private static final int PORT = 5672; // rabbitmq端口是5672
private static final String USERNAME = "admin";
private static final String PASSWORD = "admin";
private static final String QUEUE_NAME = "hello";
public static void main(String[] args) throws Exception {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost(HOST);
factory.setPort(PORT);
factory.setUsername(USERNAME);
factory.setPassword(PASSWORD);
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
Consumer consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, BasicProperties properties, byte[] body)
throws IOException {
String message = new String(body, "UTF-8");
System.out.println("消费端接收消息：" + message);
}
};
//true 异步接收消息
channel.basicConsume(QUEUE_NAME, true, consumer);
}
}4.先后启动生产者和消费者
3. 一对多
官网示例
4. SpringBoot整合RabbitMQ
第一种交换模式：Direct
1.引入依赖
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-amqpartifactId>
dependency>application.yml
spring:
rabbitmq:
host: 192.168.186.135
port: 5672
username: admin
password: admin2.配置org.springframework.amqp.core.Queue
【MQConfig.java】
@Configuration
public class MQConfig {
public static final String QUEUE = "queue";
@Bean
public Queue queue() {
return new Queue(QUEUE);
}
}- 【MQSender.java】消息发送端
@Component
@Slf4j
public class MQSender {
@Autowired
private AmqpTemplate amqpTemplate;
public void sendMsg(String msg) {
log.info("发送消息：" + msg);
amqpTemplate.convertAndSend(MQConfig.QUEUE, msg);
}
}4.【MQReceiver.java】消息接收端
@Component
@Slf4j
public class MQReceiver {
//绑定队列名称
@RabbitListener(queues = { MQConfig.QUEUE })
public void receive(String message) {
log.info("springboot rabbitmq recevie message:" + message);
}5.简单的controller测试
@PostMapping("/send")
public String sendMsg(String msg) {
mqSender.sendMsg(msg);
return "success";
}第二种交换模式：Topic
:biking_woman:特点：
:ballot_box_with_check: 可以根据routing_key自由的绑定不同的队列
:ballot_box_with_check:发送端不需要知道发送到哪个队列，由routing_key去分发到队列中
2.配置org.springframework.amqp.core.Queue
【MQConfig.java】
public static final String TOPIC_EXCHANGE = "topic_exchange";
public static final String QUEUE_HELLO = "topic_hello";
public static final String QUEUE_WORLD = "topic_world";
public static final String ROUT_HELLO = "hello_key";
public static final String ROUT_WORLD = "world_key";
...
//=============定义两个队列========================
@Bean
public Queue queueHello() {
return new Queue(QUEUE_HELLO);
}
@Bean
public Queue queueWorld() {
return new Queue(QUEUE_WORLD);
}
//===================声明topinc交换模式=========================
@Bean
public TopicExchange topicExchange() {
return new TopicExchange(TOPIC_EXCHANGE);
}
//队列绑定到交换模式上
@Bean
@Autowired
public Binding bindingHello(Queue queueHello, TopicExchange topicExchange) {
return BindingBuilder.bind(queueHello).to(topicExchange).with(ROUT_HELLO);
}
@Bean
@Autowired
public Binding bindingWorld(Queue queueWorld, TopicExchange topicExchange) {
return BindingBuilder.bind(queueWorld).to(topicExchange).with(ROUT_WORLD);
}- 【MQSender.java】消息发送端
public void sendHello(String msg) {
log.info("hello topic send messsgae:" + msg);
amqpTemplate.convertAndSend(MQConfig.TOPIC_EXCHANGE, MQConfig.ROUT_HELLO, msg);
}
public void sendWorld(String msg) {
log.info("world topic send messsgae:" + msg);
amqpTemplate.convertAndSend(MQConfig.TOPIC_EXCHANGE, MQConfig.ROUT_WORLD, msg);
}4.【MQReceiver.java】消息接收端
@RabbitListener(queues = MQConfig.QUEUE_HELLO)
public void receiveHello(String msg) {
log.info("springboot rabbitmq recevie message topicHello:" + msg);
}
@RabbitListener(queues = MQConfig.QUEUE_WORLD)
public void receiveWorld(String msg) {
log.info("springboot rabbitmq recevie message topicWorld:" + msg);
}5.简单的controller测试
@PostMapping("/send/topic/hello")
public String sendHello(String msg) {
mqSender.sendHello(msg);
return "success";
}
@PostMapping("/send/topic/world")
public String sendWorld(String msg) {
mqSender.sendWorld(msg);
return "success";
}第三种交换：Fanout
:biking_woman: 特点：只要绑定该交换机的消费者都可以接受到消息
1.配置org.springframework.amqp.core.Queue
【MQConfig.java】
public static final String FANOUT_EXCHANGE = "fanout_exchange";
public static final String QUEUE_FANOUT = "queue_fanout";
public static final String QUEUE_FANOUT2 = "queue_fanout2";
....
@Bean
public FanoutExchange fanoutExchange() {
return new FanoutExchange(FANOUT_EXCHANGE);
}
@Bean
public Queue queueFanout() {
return new Queue(QUEUE_FANOUT);
}
@Bean
public Queue queueFanout2() {
return new Queue(QUEUE_FANOUT2);
}
@Bean
@Autowired
public Binding bindingFanout(FanoutExchange fanoutExchange, Queue queueFanout) {
return BindingBuilder.bind(queueFanout).to(fanoutExchange);
}
@Bean
@Autowired
public Binding bindingFanout2(FanoutExchange fanoutExchange, Queue queueFanout2) {
return BindingBuilder.bind(queueFanout2).to(fanoutExchange);
} 2.【MQSender.java】消息发送端
public void sendFanout(String msg) {
log.info("fanout send messsgae:" + msg);
amqpTemplate.convertAndSend(MQConfig.FANOUT_EXCHANGE, "", msg);
amqpTemplate.convertAndSend(MQConfig.FANOUT_EXCHANGE, "", "自定义消息");
}3.【MQReceiver.java】消息接收端
@RabbitListener(queues = MQConfig.QUEUE_FANOUT)
public void receiveFanout(String msg) {
log.info("springboot rabbitmq recevie message fanout:" + msg);
}
@RabbitListener(queues = MQConfig.QUEUE_FANOUT2)
public void receiveFanout2(String msg) {
log.info("springboot rabbitmq recevie message fanout2:" + msg);
}第四种交换模式：Headers
1.【MQConfig.java】
//======================headers交换模式============================
public static final String HEADERS_EXCHANGE = "headers_exchange";
public static final String QUEUE_HEADERS = "queue_headers";
@Bean
public HeadersExchange headersExchange() {
return new HeadersExchange(HEADERS_EXCHANGE);
}
@Bean
public Queue headersQueue() {
return new Queue(QUEUE_HEADERS, true);
}
@Bean
@Autowired
public Binding headersBind(HeadersExchange headersExchange, Queue headersQueue ) {
Map headers = new HashMap<>();
headers.put("key1", "value1");
headers.put("key2", "value2");
return BindingBuilder.bind(headersQueue).to(headersExchange).whereAny(headers).match(); 2.【MQSender.java】消息发送端
public void sendHeaders(String msg) {
log.info("headers send messsgae:" + msg);
MessageProperties messageProperties = new MessageProperties();
messageProperties.setHeader("key1", "value1");
messageProperties.setHeader("key3", "value2");
Message message = new Message(msg.getBytes(), messageProperties);
amqpTemplate.convertAndSend(MQConfig.HEADERS_EXCHANGE, "", message);
}3.【MQReceiver.java】消息接收端
@RabbitListener(queues = MQConfig.QUEUE_HEADERS)
public void receiveHeaders(byte [] bytes) {
log.info("springboot rabbitmq recevie message headers:" + new String(bytes));
}参考博客：
博客1 博客2
6. SpringCloud Stream
1. 创建生产者和消费者
1. 消息生产者：
新建【stream】springcloud项目
pom.xml
其他依赖略
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-stream-rabbitartifactId>
dependency>//注意导包
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.stream.annotation.EnableBinding;
import org.springframework.cloud.stream.messaging.Source;
import org.springframework.integration.support.MessageBuilder;
import org.springframework.messaging.MessageChannel;
//消息发送端接口
public interface SendMsg {
public void send(Object obj);
}
//接口实现类
@EnableBinding(Source.class)
public class SendMsgImpl implements SendMsg {
@Autowired
private MessageChannel output;
@Override
public void send(Object obj) {
this.output.send(MessageBuilder.withPayload(obj).build());
}
}【application.yml】文件
server:
port: 8083
spring:
cloud:
stream:
binders:
defaultRabbit:
type: rabbit
environment: #配置rabbimq连接环境
spring:
rabbitmq:
host: 192.168.186.135
username: admin
password: admin
virtual-host: /
bindings:
output:
destination: myExchange #exchange名称，交换模式默认是topic
content-type: application/json
binder: defaultRabbit//测试使用的Controller
@RestController
public class SendController {
@Autowired
private SendMsg sendMsg;
@GetMapping("/send")
public String msgSend(String msg) {
this.sendMsg.send(msg);
return "success";
}
}2 .消息消费者
新建**【input】**springlcloud项目
//接口
public interface ReceiveMsg {
public void receive(Messageapplication.yml
server:
port: 8085
spring:
cloud:
stream:
binders:
defaultRabbit:
type: rabbit
environment:
spring:
rabbitmq:
host: 192.168.186.135
username: admin
password: admin
virtual-host: /
bindings:
input:
destination: myExchange
content-type: application/json
binder: defaultRabbit