本文介绍了Webworker 中的 HTML5 Websocket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
我已经设法让 websockets 在使用 Chrome 的 webworker 内部工作,但仅用于接收数据.当我尝试发送数据时出现 DOM 异常,是否有人设法发送数据?
I've managed to get websockets working inside a webworker using Chrome, but only for receiving data. When I try to send data I get a DOM Exception, has anyone managed to send data?
这就是我为我的网络工作者准备的.
This is what I have for my web worker.
self.addEventListener('message', function(e) {
var data = e.data;
switch (data.cmd) {
case 'init':
self.postMessage("Initialising Web Workers...");
testWS();
break;
default:
self.postMessage('Unknown command: ' + data.msg);
};
}, false);
function testWS() {
var connectionAddr = "ws://localhost:8003";
var socket = new WebSocket(connectionAddr);
socket.onmessage = function(event) {
self.postMessage('Websocket : ' + event.data);
};
socket.onclose = function(event) {
};
function send(message) {
socket.send(message);
}
send("hello"); //Here is where the exception is thrown
}
推荐答案
在发送第一条消息之前,您必须监听 onopen websocket 事件.
You must listen for the onopen websocket event before sending your first message.
socket.onopen = function(){
// send some message
};
这篇关于Webworker 中的 HTML5 Websocket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!