springmvc和controller

package com.fh.controller.myController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import com.fh.controller.base.BaseController;
/*
 * myfirstController
 */
@Controller
@RequestMapping(value = "/demo/myfirstblood")
public class MyFirstController extends BaseController{
	@RequestMapping(value = "/list")
	public String list (HttpServletRequest request ,HttpServletResponse response , Model model){
		Integer amount = 30;
		model.addAttribute("Amount", amount);
		model.addAttribute("msg", "succent");
		
		return "/modules/demo/myFirstJsp";
	}
	
	@RequestMapping(value = "/submit")
	public ModelAndView sbmit (HttpServletRequest request ,HttpServletResponse response , Model model){
		logBefore(logger, "新增Command");
		ModelAndView mv = this.getModelAndView();
		String Amount = request.getParameter("Amount");  
		if(request.getAttribute("Amount") =="30") {
			mv.addObject("msg","success");
		}else{
			mv.addObject("msg","false");
		}
		System.out.println(Amount);
		mv.addObject("Amount",Amount);
		mv.setViewName("/modules/demo/myFirstJsp");		
		return mv;
		}


}