SpringMVC存取Session的两种方法

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";   } } 

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