问题
The language I am working in is Javascript on HTML5-compatible browsers.
My understanding is that WebSockets require a socket server to transport push notifications and messages back and forth between clients.
Is there an actual peer-to-peer capability with HTML5 that does not require a socket server? Has anyone seen example client-side code in Javascript that exemplifies this capability?
回答1:
See the answers for Will HTML5 allow web apps to make peer-to-peer HTTP connections? However, the content in the WebSockets specification seems to have gone, so I suspect the answer now is "no".
回答2:
WebRTC http://www.webrtc.org/ https://developer.mozilla.org/en-US/docs/Web/Guide/API/WebRTC
But in 2010 it wasn’t a thing :(
回答3:
https://www.peer5.com/faq
Just seen this online, may be worth looking at.
回答4:
Most of the time browsers are behind firewall and you cannot connect directly to browser. If you don't want to implement server yourself there is a solution:
https://httprelay.io/
You can use AJAX calls to communicate between browsers.
来源：https://stackoverflow.com/questions/4181645/does-html5-support-peer-to-peer-and-not-just-websockets