1、POM檔案，加入依賴

<?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>com.neo</groupId>
    <artifactId>spring-boot-rabbitmq</artifactId>
    <version>1.0.0</version>
    <packaging>jar</packaging>

    <name>spring-boot-rabbitmq</name>
    <description>Demo project for Spring Boot and rabbitmq</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.2.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-amqp</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <optional>true</optional>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>
 

2、訂單實體類：Order

import java.io.Serializable;

public class Order implements Serializable {

    private static final long serialVersionUID = 7589820506567799193L;

    private String id;

    private String name;

    /**
     * 訊息ID
     */
    private String messageId;

    public Order() {

    }

    public Order(String id, String name, String messageId) {
        this.id = id;
        this.name = name;
        this.messageId = messageId;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getMessageId() {
        return messageId;
    }

    public void setMessageId(String messageId) {
        this.messageId = messageId;
    }
}
 

3、application.properties配置檔案

#基本配置
spring.rabbitmq.addresses=localhost:5672
spring.rabbitmq.username=guest
spring.rabbitmq.password=guest
spring.rabbitmq.virtual-host=/
spring.rabbitmq.connection-timeout=15000

server.servlet-path=/
server.port=8002

spring.http.encoding.charset=utf-8
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8
spring.jackson.default-property-inclusion=non_null

#整合rabbitmq消費者
spring.rabbitmq.listener.concurrency=5
spring.rabbitmq.listener.max-concurrency=10
#簽收模式
spring.rabbitmq.listener.acknowledge-mode=manual
#限流 - 每次只消費一條
spring.rabbitmq.listener.prefetch=1







 

4、消費者類

import com.neo.model.Order;
import com.rabbitmq.client.Channel;
import org.springframework.amqp.rabbit.annotation.*;
import org.springframework.amqp.support.AmqpHeaders;
import org.springframework.messaging.handler.annotation.Headers;
import org.springframework.messaging.handler.annotation.Payload;
import org.springframework.stereotype.Component;
import java.util.Map;

/**
 * 接收訊息
 */
@Component
public class OrderReceiver {

    /**
     * 交換機、佇列不存在的話，以下註解可以自動建立交換機和佇列
     *
     * @param order
     * @param headers
     * @param channel
     * @throws Exception
     */
    @RabbitListener(bindings = @QueueBinding(
            value = @Queue(value = "order-queue", durable = "true"),
            exchange = @Exchange(value = "order-exchange", durable = "true", type = "topic"),
            key = "order.#"
    ))

    /**
     * 消費者接收訊息並消費訊息
     *
     * @param order
     * @param headers
     * @param channel
     * @throws Exception
     */
    @RabbitHandler
    public void onOrderMessage(@Payload Order order,
                               @Headers Map<String, Object> headers,
                               Channel channel) throws Exception {
        System.out.println("--------------收到訊息，開始消費------------");
        System.out.println("訂單ID是：" + order.getId());
        Long deliveryTag = (Long) headers.get(AmqpHeaders.DELIVERY_TAG);
        // ACK
        channel.basicAck(deliveryTag, false);
    }
}

5、啟動類檔案：Application

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class Application {

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}