SpringMVC下获取request和session

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

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

public class ContextHolderUtils {
    /**
     * SpringMvc下获取request
     * 
     * @return
     */
    public static HttpServletRequest getRequest() {
        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
        return request;

    }
    /**
     * SpringMvc下获取session
     * 
     * @return
     */
    public static HttpSession getSession() {
        HttpSession session = getRequest().getSession();
        return session;

    }

}