SpringMvc获取上下文

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

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
/**
* @ClassName: ContextHolderUtils 
* @Description: TODO(上下文工具类) 
* 
 */
public class ContextUtils {
    /**
     * 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;

    }

}