生产者.
package main
import (
"fmt"
"github.com/streadway/amqp"
"log"
)
func main() {
//链接mq
conn, err := amqp.Dial("amqp://guest:guest@192.168.2.232:5672/")
failOnError(err, "Failed to connect to RabbitMQ")
defer conn.Close()
//通道
ch, err := conn.Channel()
failOnError(err, "Failed to open a channel")
defer ch.Close()
//设置数据
q, err := ch.QueueDeclare(
"a_test", // name
true, // durable
false, // delete when unused
false, // exclusive
false, // no-wait
nil, // arguments
)
failOnError(err, "Failed to declare a queue")
for i:=1;i<=1000;i++{
body := fmt.Sprintf("{\"order_id\":%d}",i)
fmt.Println(body)
err = ch.Publish(
"", // exchange
q.Name, // routing key
false, // mandatory
false, // immediate
amqp.Publishing {
ContentType: "text/plain",
Body: []byte(body),
})
}
failOnError(err, "Failed to publish a message")
}
func failOnError(err error, msg string) {
if err != nil {
log.Fatalf("%s: %s", msg, err)
}
}
消费者：
package main
import (
"github.com/streadway/amqp"
"log"
"time"
)
func main() {
conn, err := amqp.Dial("amqp://guest:guest@192.168.2.232:5672/")
if err != nil{
log.Printf("err %s", err)
}
defer conn.Close()
forever := make(chan bool)
for i:=1;i<4;i++{
go func(routineNum int) {
ch, err := conn.Channel()
if err != nil{
log.Printf("err %s", err)
}
defer ch.Close()
q, err := ch.QueueDeclare(
"a_test", // name
true, // durable
false, // delete when unused
false, // exclusive
false, // no-wait
nil, // arguments
)
if err != nil{
log.Printf("err %s", err)
}
Msgs, err := ch.Consume(
q.Name, // queue
"", // consumer
false, // auto-ack
false, // exclusive
false, // no-local
false, // no-wait
nil, // args
)
if err != nil{
log.Printf("err %s", err)
}
for msg := range Msgs {
log.Printf("协程 %d Received a message: %s",routineNum ,msg.Body)
time.Sleep(5*time.Second)
msg.Ack(true)
}
}(i)
}
<-forever
}
返回结果：
2020/04/15 11:11:22 协程 3 Received a message: {"order_id":69}
2020/04/15 11:11:22 协程 1 Received a message: {"order_id":601}
2020/04/15 11:11:22 协程 2 Received a message: {"order_id":75}
2020/04/15 11:11:27 协程 1 Received a message: {"order_id":602}
2020/04/15 11:11:27 协程 3 Received a message: {"order_id":70}
2020/04/15 11:11:27 协程 2 Received a message: {"order_id":76}
2020/04/15 11:11:32 协程 1 Received a message: {"order_id":603}
2020/04/15 11:11:32 协程 3 Received a message: {"order_id":71}
2020/04/15 11:11:32 协程 2 Received a message: {"order_id":77}
