mac 安装及使用amqplib消息队列-雅荷心语博客

brew update
brew install rabbitmq

如果 brew 是国外的源, 可能安装很慢, 可以更改为国内的源

打开终端执行：/bin/zsh -c "$(curl -fsSL https://gitee.com/cunkai/HomebrewCN/raw/master/Homebrew.sh)"

该地址提供多个国内源地址

安装成功后, 使用

rabbitmq-server start

命令进行启动

启动后, 可使用网页端进行查看队列

http://localhost:15672/

默认的登陆账号密码为: guest

下面是一个简单的使用 demo, 使用 nodejs 实现:

需要先安装: npm i amqplib

生产端:每隔 500ms 推送一条消息

import * as amqp from 'amqplib'
const connect = await amqp.connect(`amqp://localhost:5672`);
const channel = await connect.createChannel();

await channel.assertQueue('aaa', { durable: false });

let i = 1;
setInterval(async () => {
	const msg = 'hello' + i;
	console.log('发送消息：', msg);
	await channel.sendToQueue('aaa',Buffer.from(msg))
	i++;
}, 500);

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import * as amqp from 'amqplib'

const connect = await amqp.connect(`amqp://localhost:5672`);

const channel = await connect.createChannel();

await channel.assertQueue('aaa', { durable: false });

let i = 1;

setInterval(async () => {

const msg = 'hello' + i;

console.log('发送消息：', msg);

await channel.sendToQueue('aaa',Buffer.from(msg))

i++;

}, 500);

消费端: 每间隔 3 秒读取一条消息;

import * as amqp from 'amqplib'
const sleep = (time) => {
	return new Promise(resolve => {
		setTimeout(_ => resolve(), time * 1000)
	})
}
const x = async () => {
	const connect = await amqp.connect(`amqp://localhost:5672`);
	const channel = await connect.createChannel();
	const {queue} = await channel.assertQueue('aaa', {durable: false});
	// 一次性读取一条;
	channel.prefetch(1);
	channel.consume(queue, async (msg) => {
		if (msg !== null) {
			console.log('收到数据', msg?.content?.toString());
			await sleep(3);
			channel.ack(msg);
		}
	});
}

await x()

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import * as amqp from 'amqplib'

const sleep = (time) => {

return new Promise(resolve => {

setTimeout(_ => resolve(), time * 1000)

})

}

const x = async () => {

const connect = await amqp.connect(`amqp://localhost:5672`);

const channel = await connect.createChannel();

const {queue} = await channel.assertQueue('aaa', {durable: false});

// 一次性读取一条;

channel.prefetch(1);

channel.consume(queue, async (msg) => {

if (msg !== null) {

console.log('收到数据', msg?.content?.toString());

await sleep(3);

channel.ack(msg);

}

});

}

await x()

修改 channel.prefetch(3); 可设置读取条数。

这就是简单的 amqplib 消息队列使用方法;

更深层次使用参考: https://www.cnblogs.com/GouHuang/p/15937758.html

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mac 安装及使用amqplib消息队列

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