Spring 集成到web项目中

1. 在web.xml中配置实例化spring容器

<context-param><!-- location of spring config --><param-name>contextConfigLocation</param-name><param-value>classpath:spring.xml</param-value></context-param><!-- initialize spring context--><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener>

2. 在controller中获取spring容器实例

@Controller("accountController") //让spring管理Controller@RequestMapping("/accountController.do")@SessionAttributes({"account"}) //put account to session, //as a result both request and session have the two attribute.public class AccountController {@Resource //自动注入Service实例AccountService accountService;@RequestMapping(params="method=login", method=RequestMethod.POST) public String login(String username, String password, ModelMap map, HttpServletRequest request){Account account = accountService.Login(username, password);if(account!=null){//request.getSession().setAttribute("account", account);System.out.println("Hello "+ username);map.put("message", "welcome "+ username +"!");return "main";}else{map.put("message", "username or password is wrong! ");return "index";}}@RequestMapping(params="method=register", method=RequestMethod.POST)public ModelAndView register(Account account, HttpServletRequest request){ModelAndView mav =new ModelAndView("main");mav.addObject("account", account);try {accountService.reqister(account);} catch (Exception e) {e.printStackTrace();mav.addObject("message", "register failed!");mav =new ModelAndView("account/account_register");}mav.addObject("message", "register successed!");mav =new ModelAndView("main");return mav;}}