Smack 在 Java EE 中是否正常运行?我遇到了存在问题。我通过 doPost 方法从登录表单中获取凭据..我可以成功地进行身份验证以及 connection.getRoster() 也可以工作。接下来我只想显示在线的用户,这样当我得到用户的存在时,存在对象存储所有用户的默认值“不可用”,即使他们可用!
整个聊天应用程序在普通的 java 类中没有任何缺陷地工作,没有任何改变..
String userName = request.getParameter("username");
String password = request.getParameter("password");
HttpSession session=request.getSession();
session.setAttribute("username", userName);
SmackAPIGtalkServlet gtalk = new SmackAPIGtalkServlet();
ConnectionConfiguration config = new ConnectionConfiguration(
"talk.google.com", 5222, "gmail.com");
connection = new XMPPConnection(config);
config.setSASLAuthenticationEnabled(false);
try {
connection.connect();
} catch (XMPPException e) {
e.printStackTrace();
}
try {
connection.login(userName, password);
} catch (XMPPException e) {
e.printStackTrace();
}
System.out.println(connection.isAuthenticated());
boolean status = connection.isAuthenticated();
if (status == true) {
gtalk.displayOnlineBuddyList();
response.sendRedirect("Roster.jsp");
}
else
{
response.sendRedirect("Failed.jsp");
}
}
public void displayOnlineBuddyList() {
Roster roster = connection.getRoster();
Collection<RosterEntry> entries = roster.getEntries();
int count1 = 0;
int count2 = 0;
for (RosterEntry r : entries) {
Presence presence = roster.getPresence(r.getUser());
if (presence.getType() == Presence.Type.unavailable) {
// System.out.println(user + "is offline");
count1++;
} else {
System.out.println(name+user + "is online");
count2++;
}
}
roster.addRosterListener(new RosterListener() {
// Ignored events public void entriesAdded(Collection<String>
// addresses) {}
public void entriesDeleted(Collection<String> addresses) {
}
public void entriesUpdated(Collection<String> addresses) {
}
public void presenceChanged(Presence presence) {
System.out.println("Presence changed: " + presence.getFrom()
+ " " + presence);
}
@Override
public void entriesAdded(Collection<String> arg0) {
// TODO Auto-generated method stub
}
});
}
我被这个困住了,无法让代码与 servlet 一起工作。谁能帮帮我吗?