RabbitMQ生产者和消费者Java Demo源码-001
- 1. RabbitMQ 环境搭建
- 2. 项目搭建
- 3. 创建账号
- 4. 消息提供者 RabbitProducer
- 4. 消费者代码
1. RabbitMQ 环境搭建
2. 项目搭建
如果不想自己搭建可以使用我已经搭建好的:https://gitee.com/jack0240/rabbitmqdemo.git
设置maven, 不然下载包加载很慢
maven下载配置
添加maven配置
<!-- 日志包 -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.30</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.2.3</version>
</dependency>
<!-- rabbitmq 连接包 -->
<dependency>
<groupId>com.rabbitmq</groupId>
<artifactId>amqp-client</artifactId>
<version>5.11.0</version>
</dependency>
<configuration debug="false">
<!--定义日志文件的存储地址 勿在 LogBack 的配置中使用相对路径-->
<property name="LOG_HOME" value="/logs" />
<!-- 控制台输出 -->
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
</encoder>
</appender>
<!-- 按照每天生成日志文件 -->
<appender name="FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!--日志文件输出的文件名-->
<FileNamePattern>${LOG_HOME}/rabbitmqdemo.log.%d{yyyy-MM-dd}.log</FileNamePattern>
<!--日志文件保留天数-->
<MaxHistory>30</MaxHistory>
</rollingPolicy>
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<!--格式化输出：%d表示日期，%thread表示线程名，%-5level：级别从左显示5个字符宽度%msg：日志消息，%n是换行符-->
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{50} - %msg%n</pattern>
</encoder>
<!--日志文件最大的大小-->
<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
<MaxFileSize>10MB</MaxFileSize>
</triggeringPolicy>
</appender>
<!-- 日志输出级别 -->
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>项目结构:
3. 创建账号
默认情况下，访问RabbitMQ服务的用户名和密码都是guest，这个账号有限制，默认只能通过本地网络（如localhost）访问，远程网络访问受限，所以在实现生产和消费消息之前，需要另外添加一个用户，并设置相应的访问权限。
需要进入安装的目录设置:
D:\Program Files\RabbitMQ Server\rabbitmq_server-3.8.14\sbin>
# 1.添加用户密码
rabbitmqctl add_user jack Jack2021
# 2.为用户添加所有权限
rabbitmqctl set_permissions -p / jack ".*" ".*" ".*"
# 3.设置用户为管理员
rabbitmqctl set_user_tags jack administrator
http://localhost:15672/#/users
4. 消息提供者 RabbitProducer
package com.jack.rabbitmq.demo.day1;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import com.rabbitmq.client.MessageProperties;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**
* RabbitMQ 服务提供者
* @author Jack魏
*/
public class RabbitProducer {
private static final Logger logger = LoggerFactory.getLogger(RabbitProducer.class);
private static final String EXCHANGE_NAME = "exchange_demo";
private static final String ROUTING_KEY = "routingkey_demo";
private static final String QUEUE_NAME = "queue_demo";
private static final String IP_ADDRESS = "127.0.0.1";
private static final int PORT = 5672;
public static void main(String[] args) throws IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost(IP_ADDRESS);
factory.setPort(PORT);
factory.setUsername("jack");
factory.setPassword("Jack2021");
// 建立连接
Connection connection = factory.newConnection();
// 创建信道
Channel channel = connection.createChannel();
// 创建一个type="direct"、持久化的、非自动删除的交换器
channel.exchangeDeclare(EXCHANGE_NAME, "direct", true, false, null);
// 创建一个持久化、非排他的、非自动删除的队列
channel.queueDeclare(QUEUE_NAME, true, false, false, null);
// 将交换器和队列通过路由绑定
channel.queueBind(QUEUE_NAME, EXCHANGE_NAME, ROUTING_KEY);
// 发送一条持久化的消息：hello, RabbitMQ
String message = "hello, RabbitMQ!";
channel.basicPublish(EXCHANGE_NAME, ROUTING_KEY,
MessageProperties.PERSISTENT_TEXT_PLAIN,
message.getBytes());
logger.info("发送信息---{}", message);
// 关闭资源
channel.close();
connection.close();
}
}点击运行:
查看web端变化
4. 消费者代码
package com.jack.rabbitmq.demo.day1;
import com.rabbitmq.client.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
/**
* RabbitMQ 消费者
* @author Jack魏
*/
public class RabbitConsumer {
private static final Logger logger = LoggerFactory.getLogger(RabbitProducer.class);
private static final String QUEUE_NAME = "queue_demo";
private static final String IP_ADDRESS = "127.0.0.1";
private static final int PORT = 5672;
public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
Address[] addresses = new Address[] {
new Address(IP_ADDRESS, PORT)
};
ConnectionFactory factory = new ConnectionFactory();
factory.setUsername("jack");
factory.setPassword("Jack2021");
// 这里的连接方式与生产者的demo略有不同，注意区分
// 创建连接
Connection connection = factory.newConnection(addresses);
// 创建信道
final Channel channel = connection.createChannel();
// 设置客户端最多接受未被ack的消息的个数
channel.basicQos(64);
Consumer consumer = new DefaultConsumer(channel) {
public void handleDelivery(String consumerTag, Envelope envelope,
AMQP.BasicProperties properties, byte[] body) throws IOException {
logger.info("接受到的信息: " + new String(body));
try {
TimeUnit.SECONDS.sleep(1);
} catch (InterruptedException e) {
e.printStackTrace();
}
channel.basicAck(envelope.getDeliveryTag(), false);
}
};
channel.basicConsume(QUEUE_NAME, consumer);
// 等待回调函数执行完毕后，关闭资源
TimeUnit.SECONDS.sleep(5);
channel.close();
connection.close();
}
}运行后的结果:
