适配器Adapter

Action实现Controller接口

org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter

public class EmpAction implements Controller{
    public ModelAndView handleRequest(HttpServletRequest request,HttpServletResponse response) throws Exception {
        System.out.println("EmpAction::handleRequest");
        request.setCharacterEncoding("UTF-8");
        String username = request.getParameter("username");
        ModelAndView modelAndView = new ModelAndView();
        modelAndView.addObject("message",username);
        modelAndView.setViewName("/jsp/success.jsp");
        return modelAndView;
    }
}