golang连接rabbitmq

 1 package main
 2 
 3 import (
 4     "log"
 5 
 6     "github.com/streadway/amqp"
 7 )
 8 
 9 func failOnError(err error, msg string) {
10     if err != nil {
11         log.Fatalf("%s: %s", msg, err)
12     }
13 }
14 
15 // 只能在安装 rabbitmq 的服务器上操作
16 func main() {
17     conn, err := amqp.Dial("amqp://guest:guest@localhost:5672/")
18     failOnError(err, "Failed to connect to RabbitMQ")
19     defer conn.Close()
20 
21     ch, err := conn.Channel()
22     failOnError(err, "Failed to open a channel")
23     defer ch.Close()
24 
25     q, err := ch.QueueDeclare(
26         "hello", // name
27         false,   // durable
28         false,   // delete when unused
29         false,   // exclusive
30         false,   // no-wait
31         nil,     // arguments
32     )
33     failOnError(err, "Failed to declare a queue")
34 
35     body := "Hello World!"
36     err = ch.Publish(
37         "",     // exchange
38         q.Name, // routing key
39         false,  // mandatory
40         false,  // immediate
41         amqp.Publishing{
42             ContentType: "text/plain",
43             Body:        []byte(body),
44         })
45     log.Printf(" [x] Sent %s", body)
46     failOnError(err, "Failed to publish a message")
47 }

 1 package main
 2 
 3 import (
 4     "log"
 5 
 6     "github.com/streadway/amqp"
 7 )
 8 
 9 func failOnError(err error, msg string) {
10     if err != nil {
11         log.Fatalf("%s: %s", msg, err)
12     }
13 }
14 
15 // 只能在安装 rabbitmq 的服务器上操作
16 func main() {
17     conn, err := amqp.Dial("amqp://guest:guest@localhost:5672/")
18     failOnError(err, "Failed to connect to RabbitMQ")
19     defer conn.Close()
20 
21     ch, err := conn.Channel()
22     failOnError(err, "Failed to open a channel")
23     defer ch.Close()
24 
25     q, err := ch.QueueDeclare(
26         "hello", // name
27         false,   // durable
28         false,   // delete when unused
29         false,   // exclusive
30         false,   // no-wait
31         nil,     // arguments
32     )
33     failOnError(err, "Failed to declare a queue")
34 
35     msgs, err := ch.Consume(
36         q.Name, // queue
37         "",     // consumer
38         true,   // auto-ack
39         false,  // exclusive
40         false,  // no-local
41         false,  // no-wait
42         nil,    // args
43     )
44     failOnError(err, "Failed to register a consumer")
45 
46     forever := make(chan bool)
47 
48     go func() {
49         for d := range msgs {
50             log.Printf("Received a message: %s", d.Body)
51         }
52     }()
53 
54     log.Printf(" [*] Waiting for messages. To exit press CTRL+C")
55     <-forever
56 }