https://blog.csdn.net/m0_37867405/article/details/80793601
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- 1
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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
1.引入 pom.xml
<dependency>
<groupId>com.rabbitmq</groupId> <artifactId>amqp-client</artifactId> <version>5.0.0</version> </dependency>- 1
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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
4. SpringBoot整合RabbitMQ
第一种交换模式：Direct
1.引入依赖
<dependency>
<groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-amqp</artifactId> </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<String, Object> 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：
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.cloud</groupId> <artifactId>spring-cloud-starter-stream-rabbit</artifactId> </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(Message<Object> message); } //实现类 import org.springframework.cloud.stream.annotation.EnableBinding; import org.springframework.cloud.stream.annotation.StreamListener; import org.springframework.cloud.stream.messaging.Sink; import org.springframework.messaging.Message; import org.springframework.stereotype.Component; @Component @EnableBinding(Sink.class) public class ReceiveMsgImpl implements ReceiveMsg { @Override @StreamListener(Sink.INPUT) public void receive(Message<Object> message) { System.out.println("接收消息" + message.getPayload()); } }application.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