session工具类

package com.sqfs.utils;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

/**
* SessionContext 工具类,用于数据存储到session和从session中获取数据
* @author LSZ
*/
public final class SqfsSessionContext {

private SqfsSessionContext() {}

/**
 * 把数据存储到session中
 * @param objName 存储到session中的对象的变量名
 * @param o 存储的任意数据
 */
public static void push(String objName, Object o) {
    HttpServletRequest request = 
            ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    request.getSession().setAttribute(objName, o);
}

/**
 * 从session中获取数据
 * @param objName 存储到session中的对象的变量名
 */
public static Object pop(String objName) {
    HttpServletRequest request = 
            ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    return request.getSession().getAttribute(objName);
}

}