package com.ntsky.servlet;import javax.servlet.http.*;import javax.servlet.http.HttpSession;/** * <p>Title: NTsky新聞發布v1.0正式版</p> * <p>Description: Session的控制</p> * <p>Copyright: Copyright (c) 2003</p> * <p>Company: NTsky</p> * @authory 姚君林 * @version 1.0 */public class SessionManager{    /**     * 設置session     */    public void setSession(HttpSession session, String str, String username){        session.setAttribute(str,username);    }    /**     * 取得session的值     * @param session     * @param str     * @return     */    public String getSession(HttpSession session,String str){        String user=null;        user=(String)session.getAttribute(str);        return user;    }    /**     * 取消session     */    public static void removeSession(HttpSession session,String user){        session.removeAttribute(user);    }}