logouthandler.java

该系统是一个基于p2p的即时聊天系统

/*
 * @(#) LogoutHandler.java
 * Copyright 2004 HWStudio. All rights reserved.
 */
package hws.item.smart.utility.admin;
//导入核心Java类库
import java.io.IOException;
import java.io.StringReader;
//导入自定义Java类库
import hws.item.smart.misc.PopToolkit;
import hws.item.smart.panel.function.admin.LogoutPanel;
import hws.item.smart.panel.function.admin.AddressPanel;
import hws.item.smart.utility.chat.UserInfo;
//导入第三方Java类库
import org.jdom.Element;
import org.jdom.Document;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
/**
 * 注销处理器
 *
 * @version 0.1 2005-08-07
 * @author Hwerz
 */
public class LogoutHandler extends Object {
    /*------------------------------------------------------------------------*
     *                                公共方法                                *
     *------------------------------------------------------------------------*/
    /**
     * 用户注销
     *
     * @param requestMsg 用户注销的请求信息
     */
    public void logout(String requestMsg) {
        try {
            SAXBuilder builder = new SAXBuilder();
            StringReader reader = new StringReader(requestMsg);
            Document document = builder.build(reader);
            Element request = document.getRootElement();
            String id = request.getChild("ID").getText();
            UserInfo user = XMLAccessor.getUser(id);
            if (user != null) {
                String nickname = user.getBasicInfo().getNickname();
                String ip = request.getChild("IP").getText();
                String time = PopToolkit.getLongTime();
                AddressPanel.getInstance().offline(id);
                LogoutPanel.getInstance().logout(id, nickname, ip, time);
            }
        } catch (JDOMException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}