RabbitMQ部署
RabbitMQ是一种消息队列,用来进行消息之间的发送
拉取RabbitMQ镜像,启动容器
docker pull rabbitmq:3-management
docker run \
-e RABBITMQ_DEFAULT_USER=root \ #设置环境变量,账号,密码
-e RABBITMQ_DEFAULT_PASS=123 \
--name mq \ #起名
--hostname mq1 \ #配置主机名,集群部署时候有用,非集群部署可不配
-p 15672:15672 \ #管理平台端口
-p 5672:5672 \ #消息通信端口
-d \
rabbitmq:3-management
消息发布端和消费端需要引入依赖
<!--AMQP依赖,包含RabbitMQ-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-amqp</artifactId>
</dependency>
消息发布端
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import org.junit.Test;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class PublisherTest {
@Test
public void testSendMessage() throws IOException, TimeoutException {
// 1.建立连接
ConnectionFactory factory = new ConnectionFactory();
// 1.1.设置连接参数,分别是:主机名、端口号、vhost、用户名、密码
// 请确保消息发布端和消费端的连接参数一致,账户拥有虚拟主机的使用权
factory.setHost("192.168.230.100");
factory.setPort(5672);
factory.setVirtualHost("/");
factory.setUsername("root");
factory.setPassword("123");
// 1.2.建立连接
Connection connection = factory.newConnection();
// 2.创建通道Channel
Channel channel = connection.createChannel();
// 3.创建队列
String queueName = "simple.queue";
channel.queueDeclare(queueName, false, false, false, null);
// 4.发送消息
String message = "hello, rabbitmq!";
channel.basicPublish("", queueName, null, message.getBytes());
System.out.println("发送消息成功:【" + message + "】");
// 5.关闭通道和连接
channel.close();
connection.close();
}
}
消息消费端
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class ConsumerTest {
public static void main(String[] args) throws IOException, TimeoutException {
// 1.建立连接
ConnectionFactory factory = new ConnectionFactory();
// 1.1.设置连接参数,分别是:主机名、端口号、vhost、用户名、密码
// 请确保消息发布端和消费端的连接参数一致,账户拥有虚拟主机的使用权
factory.setHost("192.168.230.100");
factory.setPort(5672);
factory.setVirtualHost("/");
factory.setUsername("root");
factory.setPassword("123");
// 1.2.建立连接
Connection connection = factory.newConnection();
// 2.创建通道Channel
Channel channel = connection.createChannel();
// 3.创建队列
String queueName = "simple.queue";
channel.queueDeclare(queueName, false, false, false, null);
// 4.订阅消息
channel.basicConsume(queueName, true, new DefaultConsumer(channel){
@Override
public void handleDelivery(String consumerTag, Envelope envelope,
AMQP.BasicProperties properties, byte[] body) throws IOException {
// 5.处理消息
String message = new String(body);
System.out.println("接收到消息:【" + message + "】");
}
});
System.out.println("等待接收消息。。。。");
}
}