全局Session-GlobalSession

import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpSession;  
  
import org.springframework.web.context.request.RequestContextHolder;  
import org.springframework.web.context.request.ServletRequestAttributes;  
  
/** 
 * 当前session工具类 
 * 
 */  
public class GlobalSession {  
  
    public static void setSessionAttribute(String arg, Object o) {  
        HttpSession session = getSession();  
        session.setAttribute(arg, o);  
    }  
      
    public static Object getSessionAttribute(String arg) {  
        HttpSession session = getSession();  
        return session.getAttribute(arg);  
    }  
  
    public static void removeSessionAttribute(String arg) {  
        HttpSession session = getSession();  
        if (getSessionAttribute(arg) != null) {  
            session.removeAttribute(arg);  
        }  
    }  
  
    public static void setAttribute(String arg, Object o) {  
        HttpSession session = getHttpSession();  
        session.setAttribute(arg, o);  
    }  
  
  
    public static Object getAttribute(String arg) {  
        HttpSession session = getHttpSession();  
        return session.getAttribute(arg);  
    }  
  
  
    public static void removeAttribute(String arg) {  
        if (getAttribute(arg) != null) {  
            getHttpSession().removeAttribute(arg);  
        }  
    }  
  
      
    public static HttpSession getHttpSession() {  
        HttpServletRequest session = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();  
        return session.getSession();  
    }  
  
      
    public static HttpSession getSession() {  
        HttpServletRequest session = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();  
        return session.getSession();  
    }  
}  

使用方法：

HttpServletRequest   request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();