支持RabbitMQ的AMQP

package main

import (
    "log"

    "github.com/streadway/amqp"
)

func failOnError(err error, msg string) {
    if err != nil {
        log.Fatalf("%s: %s", msg, err)
    }
}

func main() {
    // 连接 RabbitMQ
    conn, err := amqp.Dial("amqp://admin:admin@127.0.0.1:5673")
    failOnError(err, "连接失败")
    defer conn.Close()

    // 建立一个 channel ( 其实就是TCP连接 ）
    ch, err := conn.Channel()
    failOnError(err, "打开通道失败")
    defer ch.Close()

    // 创建一个名字叫 "hello" 的队列
    q, err := ch.QueueDeclare(
        "hello", // name
        false,   // durable
        false,   // delete when unused
        false,   // exclusive
        false,   // no-wait
        nil,     // arguments
    )
    failOnError(err, "创建队列失败")

    // 构建一个消息
    body := "Hello World!"
    msg := amqp.Publishing{
        ContentType: "text/plain",
        Body:        []byte(body),
    }

    // 构建一个生产者，将消息 放入队列
    err = ch.Publish(
        "",     // exchange
        q.Name, // routing key
        false,  // mandatory
        false,  // immediate
        msg)
    log.Printf(" [x] Sent %s", body)
    failOnError(err, "Failed to publish a message")
}