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send1.go
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send1.go
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package main
import (
"fmt"
"log"
"os"
"strings"
"github.com/streadway/amqp"
)
func failOnError(err error, msg string){
if err != nil {
log.Fatalf("%s:%s", msg, err)
panic(fmt.Sprintf("%s:%s", msg, err))
}
}
func bodyFrom(args []string) string {
var s string
if (len(args) < 2) || os.Args[1] == "" {
s = "hoge"
} else {
s = strings.Join(args[1:], " ")
}
return s
}
func main() {
// step1: 作为生产者与amqp server 建立一个连接,rabbitmq的提供的默认端口是5672
conn, err := amqp.Dial("amqp://guest:guest@localhost:5672")
failOnError(err, "Failed to connect to RabbitMQ")
defer conn.Close()
// step2: 在这个连接上面创建channel
ch, err := conn.Channel()
failOnError(err, "Failed to open a channel")
defer ch.Close()
// step3: 创建一个名字叫做hello的queue
q, err := ch.QueueDeclare(
"hello", //name
false, //durable
false, //delete when unused
false, //exclusive
false, //no wait
nil, //arguments
)
failOnError(err, "Failed to declare q queue")
// step4: 向rabbitmq server发送"Hello"消息
body := bodyFrom(os.Args)
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")
log.Printf(" [x] Sent %s", body)
return
}