go语言操作rabbitmq

package main
import (
	"fmt"
	"log"
	"sync"
	"time"
	"github.com/streadway/amqp"
)
func declareQueue(ch *amqp.Channel, queueName string) error {
	_, err := ch.QueueDeclare(
		queueName, // name
		false,     // durable
		false,     // delete when unused
		false,     // exclusive
		false,     // no-wait
		nil,       // arguments
	)
	return err
}
func producer(ch *amqp.Channel, wg *sync.WaitGroup, queueName string) {
	defer wg.Done()
	for i := 1; i <= 5; i++ {
		message := fmt.Sprintf("Message %d", i)
		err := ch.Publish(
			"",        // exchange
			queueName, // routing key
			false,     // mandatory
			false,     // immediate
			amqp.Publishing{
				ContentType: "text/plain",
				Body:        []byte(message),
			})
		if err != nil {
			log.Fatalf("Failed to publish a message: %v", err)
		}
		fmt.Printf("Sent: %s\n", message)
		time.Sleep(time.Second)
	}
}
func consumer(ch *amqp.Channel, wg *sync.WaitGroup, queueName string) {
	defer wg.Done()
	msgs, err := ch.Consume(
		queueName, // queue
		"",        // consumer
		true,      // auto-ack
		false,     // exclusive
		false,     // no-local
		false,     // no-wait
		nil,       // args
	)
	if err != nil {
		log.Fatalf("Failed to register a consumer: %v", err)
	}
	for msg := range msgs {
		fmt.Printf("Received: %s\n", msg.Body)
	}
}
func main() {
	conn, err := amqp.Dial("amqp://guest:guest@localhost:5672/")
	if err != nil {
		log.Fatalf("Failed to connect to RabbitMQ: %v", err)
	}
	defer conn.Close()
	ch, err := conn.Channel()
	if err != nil {
		log.Fatalf("Failed to open a channel: %v", err)
	}
	defer ch.Close()
	queueName := "your_queue_name"
	// Declare the queue before using it
	err = declareQueue(ch, queueName)
	if err != nil {
		log.Fatalf("Failed to declare queue: %v", err)
	}
	var wg sync.WaitGroup
	wg.Add(2)
	go producer(ch, &wg, queueName)
	go consumer(ch, &wg, queueName)
	wg.Wait()
}

运行结果

Sent: Message 1    
Received: Message 1
Sent: Message 2
Received: Message 2
Sent: Message 3
Received: Message 3
Sent: Message 4
Received: Message 4
Sent: Message 5
Received: Message 5