// 实现roomkey userList vChat 的初始化
public String execute() throws Exception {
user = (User) session.get(AuthenticationInterceptor.USER_SESSION_KEY);
// 将房间的roomid设到application中
Hashtable roomKey = (Hashtable) application.get("roomKey");
if (roomKey == null) {
roomKey = new Hashtable();
}
if (chatcounts != null) {
roomKey.put(user.getUsername(), chatcounts);
application.put("roomKey", roomKey);
}
// 使用roomKey对应的用户所对应的roomid作为用户list的键
String userKey = (String) roomKey.get(user.getUsername());
// 构建一个Hashtable对象，以存储在线用户信息
Hashtable userList = (Hashtable) application.get(userKey);
if (userList == null) {
userList = new Hashtable();
}
// 将当前登录用户信息添加到在线用户列表中
userList.put(user.getUsername(), user.getUsername() + "**" + user.getSex() + "***");
application.put(userKey, userList);
// 使用roomKey对应的用户所对应的roomid+"chatKey"字符创作为聊天内容list的键
String chatKey = (String) roomKey.get(user.getUsername()) + "chatKey";
Vector vChat = (Vector) application.get(chatKey);
if (vChat == null) {
vChat = new Vector();
}
// 将用户进入聊天室的消息加入聊天信息中
String sWel = "<font color=red>" + user.getUsername() + "</font> 进入了聊天室！<br>";
vChat.add(sWel);
application.put(chatKey, vChat);
return "success";
}
// 刷新用户信息
public String userinfo() {
user = (User) session.get(AuthenticationInterceptor.USER_SESSION_KEY);
Hashtable roomKey = (Hashtable) application.get("roomKey");
// 使用roomKey对应的用户所对应的roomid作为用户list的键
String userKey = (String) roomKey.get(user.getUsername());
// 构建一个Hashtable对象，以存储在线用户信息
Hashtable userList = (Hashtable) application.get(userKey);
// 将当前登录用户信息添加到在线用户列表中
userList.put(user.getUsername(), user.getUsername() + "**" + user.getSex() + "***");
application.put(userKey, userList);
return "userinfo";
}