SpringMVC存取Session的两种方法

来源：99网

WEB 应用通常会引入 Session，用来在服务端和客户端之间保存一系列动作/消息的状态，比如网上购物维护 user 登录信息直到 user 退出。SpringMVC存取Session的两种方法，具体如下：

方法一：使用servlet-api

@Controller
public class ManagerController { 
 
 @Resource
 private ManagerService managerServiceImpl; 
 
 @RequestMapping(value = "manager/login.do",method = RequestMethod.GET) 
 public ModelAndView login(ManagerModel managerModel,HttpSession httpSession){ 
 
 ManagerModel manager = managerServiceImpl.getManager(managerModel); 
 if(manager!=null){ 
 manager.setPassword(""); 
 httpSession.setAttribute("manager", manager); 
 return new ModelAndView(new RedirectView("../admin/main.jsp")); 
 }else{ 
 return new ModelAndView(new RedirectView("../admin/login.jsp")); 
 } 
 } 
 
 @RequestMapping(value = "manager/logout.do",method = RequestMethod.GET) 
 public String logout(HttpSession httpSession){ 
 httpSession.getAttribute("manager"); 
 return "success"; 
 } 
}

方法二：使用SessionAttributes

@Controller
@SessionAttributes("manager") 
public class ManagerController { 
 
 @Resource
 private ManagerService managerServiceImpl; 
 
 @RequestMapping(value = "manager/login.do",method = RequestMethod.GET) 
 public ModelAndView login(ManagerModel managerModel,ModelMap model){ 
 
 ManagerModel manager = managerServiceImpl.getManager(managerModel); 
 if(manager!=null){ 
 manager.setPassword(""); 
 model.addAttribute("manager", manager); 
 return new ModelAndView(new RedirectView("../admin/main.jsp")); 
 }else{ 
 return new ModelAndView(new RedirectView("../admin/login.jsp")); 
 } 
 } 
 
 @RequestMapping(value = "manager/logout.do",method = RequestMethod.GET) 
 public String logout(@ModelAttribute("manager")ManagerModel managerModel){ 
 return "success"; 
 } 
}