问题
I am trying to create a strophe connection with XMPP using javascript with my ejabberd server , i am able to make a connection when the page loads and able to disconnect when the disconnect button is clicked.
now the problem is , the connection is alive and if a user accidently refresh the page , then my javascript is trying to make the connect again , and in response to that i am getting. (its just because the previous connection might be still alive )
<body xmlns='http://jabber.org/protocol/httpbind'>
<failure xmlns='urn:ietf:params:xml:ns:xmpp-sasl'>
<not-authorized/>
</failure>
</body>
and after a while if i refresh the page again then connection will get established successfully, so how can i reset the connection in case if the page is accidently refreshed so that a user get a seamless connection.
回答1:
If you want to have the connection survive across a page refresh, keep the jid, sid and rid variables, along with any other state you need, in something like sessionStorage. You can then use attach() to resume the XMPP session.
回答2:
I guess you login with the same JID, which is not allowed. You need to set a random resource to your JID to ensure no collisions. So instead of logging the user with JID user@domain you should use the JID user@domain/some_random_resource.
Also as a matter of principle you can also listen to onbeforeunload and disconnect there. This will not work with webkit-based browsers but will work with the rest.
来源：https://stackoverflow.com/questions/9632865/reset-the-xmpp-connection-if-the-page-gets-refreshed