How to use JAVA to achieve multi-person chat in IE? With application?

meanfree

I want to use JAVA in IE to realize the function of sharing chat between several people. Is it to be implemented by application? How should I write it?

iswipyud

application is an instance of ServletContext

The scope of ServletContext exists in the entire server, all users can access

Chat information is encapsulated into objects, and then put into this range

ServletContext.setAttribute ("key", chat history);

Then just use the getAttribute method when needed. .

sanque

I have seen that pure JSP can also do

钢铁男子

<%
request.getServletContext (). setAttribute ("ni hao", "ni hao");

request.getServletContext (). getAttribute ("ni hao");
%>
I wonder if this is the case