Util--SessionUtil

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/**
 * Session处理器
 * 
 * @author chenxin
 * @version [版本号, 2012-5-21]
 * @see [相关类/方法]
 * @since [产品/模块版本]
 */
public class SessionUtil {

	/**
	 * 往session中存放登录信息
	 * 
	 * @param request
	 * @param loginInfo
	 */
	public  static void setAttribute(HttpServletRequest request,UserLoginInfo loginInfo){
		
		HttpSession session = request.getSession(true);
		session.setAttribute("userName", loginInfo.getLoginName());
		session.setAttribute("userPW", loginInfo.getPasswd());
	}
	
	/**
	 * 从session中获取信息
	 * 
	 * @param request
	 * @param key
	 * @return
	 */
	public static Object getAttribute(HttpServletRequest request,Serializable key){
		
		HttpSession session = request.getSession(false);
		
		return session.getAttribute(key.toString());
	}
	
	
	/**
	 * 往session中存放信息
	 * 
	 * @param request
	 * @param key
	 * @param value
	 */
    public static void setAttribute(HttpServletRequest request,String key ,Object value){
        
        HttpSession session = request.getSession(true);
        session.setAttribute(key, value);
    }


}