rabbitmq 工作模式

package main

import (
    "fmt"
    "github.com/streadway/amqp"
    "log"
    "time"
)

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

func xiaofei(name string) {
    dial, err := amqp.Dial("amqp://guest:guest@192.168.1.187:5673/")
    failOnError(err, "链接失败")
    channel, err := dial.Channel()
    failOnError(err, "channel链接失败")
    defer channel.Close()
    declare, err := channel.QueueDeclare(
        "task_queue",
        true,
        false,
        false,
        false,
        nil,
    )

    failOnError(err, "Failed to declare a queue")

    err = channel.Qos(
        1,     // prefetch count
        0,     // prefetch size
        false, // global
    )
    failOnError(err, "Failed to set QoS")
    msgs, err := channel.Consume(
        declare.Name, // queue
        "",           // consumer
        false,        // auto-ack
        false,        // exclusive
        false,        // no-local
        false,        // no-wait
        nil,          // args
    )
    failOnError(err, "Failed to register a consumer")

    forever := make(chan bool)

    go func() {
        for d := range msgs {
            fmt.Println("内容", string(d.Body), "协成", name)
            d.Ack(false)
        }
    }()
    <-forever
}

// channel 练习
func main() {
    go xiaofei("1")
    go xiaofei("2")
    dial, err := amqp.Dial("amqp://guest:guest@192.168.1.187:5673/")
    failOnError(err, "链接失败")
    channel, err := dial.Channel()
    failOnError(err, "channel链接失败")
    defer channel.Close()
    declare, err := channel.QueueDeclare(
        "task_queue",
        true,
        false,
        false,
        false,
        nil,
    )
    failOnError(err, "创建队列错误")
    for i := 0; i < 50; i++ {
        body := fmt.Sprintln("信息", i)
        channel.Publish("", declare.Name, false, false, amqp.Publishing{DeliveryMode: amqp.Persistent, ContentType: "text/plain", Body: []byte(body)})
        failOnError(err, "Failed to publish a message")
    }

    time.Sleep(10 * time.Second)
}