RabbitMQ消费和生产代码示例

Java RabbitMQ 消费与生产实践

原创已于 2022-08-13 23:40:10 修改 · 633 阅读

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于 2022-08-13 23:36:45 首次发布

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本文提供Java环境下RabbitMQ的消费者(Consumer)和生产者(Producer)的代码示例，帮助理解如何在实际应用中使用RabbitMQ进行消息传递。

RabbitMQ消费和生产代码示例
Consumer

import com.rabbitmq.client.*;

public class Consumer {
    public static String QUEUE_NAME="hello";

    public static void main(String[] args) throws  Exception{
//        创建工厂
        ConnectionFactory factory =new ConnectionFactory();
        factory.setHost("192.168.3.128");
        factory.setUsername("admin");
        factory.setPassword("123456");
//        创建链接
        Connection connection =factory.newConnection();
//        获取信道
        Channel channel = connection.createChannel();
//        消费者消费消息
        /**
         * 1.消费那个队列
         * 2.消费成功之后是否要自动应答 true自动  false手动应答\
         * 3.未成功消费的回调
         * 4.取消消费的回调
         */
//        (声明 接收消息)接受消息回调函数
        DeliverCallback deliverCallback = (con,mes)->{
//            String message=new Strin
//            打印消息
            System.out.println(new String(mes.getBody()));
            System.out.println("你好世界");
        };
//        取消消息回调函数
        CancelCallback cancelCallback = con ->{
            System.out.println("消费消息被中断");
        };
        channel.basicConsume(QUEUE_NAME,true,deliverCallback,cancelCallback);


    }
}

Producer


import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;

public class Producer {
//    队列,名称
    private final static String QUEUE_NAME = "hello";
    public static void main(String[] args) throws Exception {
//创建一个连接工厂
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("192.168.3.128");
        factory.setUsername("admin");
        factory.setPassword("123456");
//        创建链接
        Connection connection =factory.newConnection();
//        获取信道
        Channel channel = connection.createChannel();
//        创建队列
        channel.queueDeclare(QUEUE_NAME, true, false, true, null);
//        发消息
        String message="hell word";
        channel.basicPublish("",QUEUE_NAME,null,message.getBytes());
        System.out.println("succeed!!!");
    }
}

pom

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>org.example</groupId>
    <artifactId>com.rabbitmq</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!--指定 jdk 编译版本-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
    <dependencies>
<!--        <dependency>-->
<!--            <groupId>org.slf4j</groupId>-->
<!--            <artifactId>slf4j-nop</artifactId>-->
<!--        </dependency>-->
        <!--rabbitmq 依赖客户端-->
        <dependency>
            <groupId>com.rabbitmq</groupId>
            <artifactId>amqp-client</artifactId>
            <version>5.8.0</version>
        </dependency>
        <!--操作文件流的一个依赖-->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.6</version>
        </dependency>
    </dependencies>

</project>