SpringMVC存取Session的两种方法

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";
    }
}

ps:多个session使用注解的话，@SessionAttributes允许指定多个属性。你可以通过字符串数组的方式指定多个属性，如 @SessionAttributes({“attr1”,”attr2”})