连接到HTML5 Websocket [英] Connecting to HTML5 Websocket
问题描述
我对HTML5 Websockets有点困惑。我看了很多教程,其中有很多不同的连接使用不同的端口。这些端口是什么意思?
然后是另一个教程有这个地方不需要端口: 最后第三个教程有一个端口,但它完全不同: 我的问题是,为什么这些会有所不同?我如何知道连接到哪个端口?此外,我试图做我自己的连接: 但是我得到以下错误: 我已经测试过并试图连接到各种其他端口(不知道我在做什么,显然是在输入随机数字),而这错误会消失,但是,我的代码 不会执行。 我试图完全理解HTML5的Websockets API,所以我可以尝试并创建更多动态应用程序。感谢您的帮助。 以下内容来自最新的WebSocket草案: 默认情况下,WebSocket协议使用端口80 for regular WebSocket 真的但是,您应该能够使用任何未使用的有效端口。只要客户端尝试连接到服务器端脚本为套接字连接打开的端口,您应该没问题。 有关端口的简要说明: 有关完整的预设端口,请参阅以下内容: 至于你的Unexpected response code:200错误,我猜测你在客户端使用的WebSocket URL并不是指向有效的服务器端脚本,但如果没有更多信息,很难评论。 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: Then another tutorial has this where no ports are required: And finally a third tutorial has a port, but it's completely different: 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: But I get the following error: 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 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. The following comes from the latest WebSocket draft: By default the WebSocket protocol uses port 80 for regular WebSocket
connections and port 443 for WebSocket connections tunneled over TLS
[RFC2818]. Really though, you should be able to use any valid port not in use. As long as clients are trying to connect to the same port that the server-side script opens for the socket connection, you should be fine. A quick note on ports: For a full list of preset ports, please see the following: As for your "Unexpected response code: 200" error, I'm guessing that the WebSocket URL you're using on the client side is not pointing to a valid server-side script, but that's hard to comment on without more info. 这篇关于连接到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IT屋!
新的WebSocket('html5-with-websockets.html WS://本地主机:1740' );
新的WebSocket(ws://www.websockets。组织);
新的WebSocket(ws:// localhost:8080 / echo);
var ws = new WebSocket(ws://test.ontarget -network.com/);
意外的响应代码:200
$ b
ws.onopen = function(){
alert(Connection Established );
};
lockquote
connections and port 443 for WebSocket connections over TLS
[RFC2818]。
- 端口80是HTTP端口。
- 端口8080是另一个HTTP端口。
- 端口443是HTTPS(即HTTP with TLS )端口。
- Adobe代码中的端口1740看起来像一些其他服务尚未使用的随机端口。
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
new WebSocket('ws://localhost:1740');
new WebSocket("ws://www.websockets.org");
new WebSocket("ws://localhost:8080/echo");
var ws = new WebSocket("ws://test.ontarget-network.com/");
Unexpected response code: 200
ws.onopen = function(){
alert("Connection Established");
};
- Port 80 is the HTTP port.
- Port 8080 is the alternate HTTP port.
- Port 443 is the HTTPS (i.e., HTTP with TLS) port.
- Port 1740 in the Adobe code seems like some random port not already in use by other services.
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers