ssm入门级项目练手

package com.hp.action; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; import com.hp.bean.Houseinfo; import com.hp.bean.User; import com.hp.dao.HouseinfoDao; import com.hp.dao.UserDao; @Controller @RequestMapping("/") public class HellowAction { //自动注解，将userDao自动注入的这个类中不用在spring中注入了 @Autowired UserDao userdao; @Autowired HouseinfoDao houseinfoDao; //登录验证，成功跳转房屋信息页面 @RequestMapping("hello") public ModelAndView Login(String uname,String upsw,ModelAndView mv ,HttpSession session) { User us=new User(); us.setUname(uname); us.setUpsw(upsw); List<User> user=userdao.select(us); if(user.isEmpty()) { mv.addObject("mg" ,"用户名或密码错误"); mv.setViewName("index"); }else { List<Houseinfo> hjouseinfo=houseinfoDao.select(); User u=user.get(0); session.setAttribute("uid", u.getUid()); mv.addObject("list" ,hjouseinfo); mv.setViewName("jsp/houseinfo"); } return mv; } //跳转房屋信息添加页面 @RequestMapping("insert") public String insert() { return "jsp/insert"; } //跳转房屋信息页面 @RequestMapping("houseinfo") public ModelAndView houseinfo(Houseinfo houseinfo,ModelAndView mv) { houseinfoDao.insert(houseinfo); System.out.println(houseinfo); List<Houseinfo> hjouseinfo=houseinfoDao.select(); mv.addObject("list" ,hjouseinfo); mv.setViewName("jsp/houseinfo"); return mv; } //跳转房屋修改页面 @RequestMapping("goupdate") public ModelAndView goupdate(ModelAndView mv,Integer hid) { Houseinfo houseinfo= houseinfoDao.get(hid); mv.addObject("houseinfo", houseinfo); mv.setViewName("jsp/update"); return mv; } //修改房屋信息 @RequestMapping("update") public ModelAndView update(ModelAndView mv,Houseinfo houseinfo) { System.out.println(houseinfo); houseinfoDao.update(houseinfo); List<Houseinfo> hjouseinfo=houseinfoDao.select(); mv.addObject("list" ,hjouseinfo); mv.setViewName("jsp/houseinfo"); return mv; } }