websocket html5,html - Connecting to HTML5 Websocket - Stack Overflow

最新推荐文章于 2025-04-18 03:33:39 发布

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最新推荐文章于 2025-04-18 03:33:39 发布

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文章标签： websocket html5

博客探讨了HTML5 WebSocket连接中不同教程中出现的端口差异。作者疑惑为何端口会有所不同，以及如何确定正确的连接端口。在尝试自定义连接时遇到了'Unexpected response code: 200'的错误。问题集中在WebSocket连接的建立、端口选择及其对应用动态性的影响上。

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I'm a bit confused about HTML5 Websockets. I've looked at numerous tutorials out there and a lot of them have different variations of connecting using different ports. What do these ports mean?

Adobe for instance, uses this:

new WebSocket('ws://localhost:1740');

Then another tutorial has this where no ports are required:

new WebSocket("ws://www.websockets.org");

And finally a third tutorial has a port, but it's completely different:

new WebSocket("ws://localhost:8080/echo");

My question would be, why do these vary? How do I know which ports to connect to? Also, I've attempted to do my own connection:

var ws = new WebSocket("ws://test.ontarget-network.com/");

But I get the following error: Unexpected response code: 200

I've tested around and tried connecting to various other "ports" (not knowing what I'm doing obviously, typing in random numbers) and this error would disappear, however, my code

ws.onopen = function(){

alert("Connection Established");

};

would not execute.

I'm trying to fully understand HTML5's Websockets API so I can experiment and create more dynamic applications. Thanks for the help.