spring中获得sesion的工具类

package com.ibs.gbplatform.common.util;

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

public class SessionUtils {

public static Object getSessionAttribute(String key) {
return ((ServletRequestAttributes) RequestContextHolder
.getRequestAttributes()).getRequest().getSession()
.getAttribute(key);
}

public static void setSessionAttribute(String key, Object object) {
((ServletRequestAttributes) RequestContextHolder.getRequestAttributes())
.getRequest().getSession().setAttribute(key, object);
}
}