如何从NodeJS服务器端在客户端浏览器上调用javascript函数？

本文介绍了如何从NodeJS服务器端在客户端浏览器上调用javascript函数？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 我正在NodeJS服务器端进行编程，我希望在客户端浏览器端调用javascript函数。希望我可以不时地从服务器端在客户端浏览器端调用函数，就好像我只是在服务器端调用该函数一样。I'm programming on the NodeJS server side, I wish to call a javascript function on the client browser side. Hopefully I can call functions every now and then on the client browser side from the server side as if I an just calling the function on the server side.是否存在某种形式推荐答案我签出了Socket.IO，但最终使用了Faye。 Faye可能比您想要的功能多一些，但是它很容易设置和使用。我发现它比Socket.IO更直观。并不是说Socket.IO看起来很艰难，但Faye看起来更轻松。I checked out Socket.IO but ended up using Faye instead. Faye is probably a little more functionality than you want, but it's so easy to setup and use. I found it more intuitive than Socket.IO. Not that Socket.IO looks tough, but Faye just looked easier.这里是网站： http://faye.jcoglan.com/ 也有一个google用户组，作者已经回答了我的一些查询。There is a google users group too and the author has responded to a couple of my inquiries.您需要的是以下代码：节点端：var faye = require('faye');var faye_server = new faye.NodeAdapter({mount: '/faye', timeout: 120});console.log('Firing up faye server. . . ');faye_server.listen(8089);//send message out every 1 secondsetInterval( function(){ var currentTime_secsSinceEpoch = new Date().getTime() / 1000; faye_server.getClient().publish('/heartbeat', { pageName: 'app.js', timeMessageSent_secs_since_epoch: currentTime_secsSinceEpoch, iFrame1CycleCount: iFrame1CycleCount });}, 1000);浏览器侧：<script type='text/javascript'>//create faye clientvar faye_client = new Faye.Client('http://127.0.0.1:8089/faye');var faye_message_subscription = faye_client.subscribe('/heartbeat', function(message){ //record the time message was received var receiveTime_secSinceEpoch = new Date().getTime() / 1000; console.log("Got heartbeat at " + receiveTime_secsSinceEpoch + "with a delay of " + receiveTime_secsSinceEpoch - message.currentTime_secsSinceEpoch + " secs"); //Do something else important here!!}</script>就是这样！现在，每当您的服务器发送心跳消息时，您的网页就会调用我们指定的函数，并向控制台吐出一条消息。That's it! Now every time your server sends the 'heartbeat' message, your webpage will call the function we specified and spit out a message to the console. Dead simple. Faye可能还需要使用许多其他很酷的功能，但这是我想要的。Faye has a lot of other cool functionality you may want to use, but this is mostly what you will want I think.您可以附加Faye真的很容易在节点上访问快递服务器，这使得它可以与Web服务器一起很好地工作。You can attach Faye to an express server in node too really easily which makes it work really well with a webserver. 这篇关于如何从NodeJS服务器端在客户端浏览器上调用javascript函数？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！