@RequestMapping(path = "/login")  
public String login(String uname, HttpSession httpSession) {  
    httpSession.setAttribute("name", uname);  
    return "欢迎登录：" + uname;  
}  
  
@RequestMapping(path = "/get")  
public String get(String uname, HttpSession httpSession) {  
  
    return "获取session：" + httpSession.getAttribute("name");  
}