Java房屋租赁系统的实现流程

@Controller
 
public class UserController {
 
	@Autowired
	private UserService userService;
	
	@RequestMapping("/login")
	public String userList() throws Exception{
		
		
		return "login";
		
	}
	@RequestMapping("/logincheck")
	public String login(User user,Model model,httpsession HttpSession) throws Exception{
		
		User user1=userService.login(user);
		
		if(user1!=null){
			httpSession.setAttribute("user", user1);
			if(user1.getType().equals("zuke")){
				return "zuke/main";
			}
			else{
				return "admin/main1";
			}
		}else{
			String error="error";
			model.addAttribute("error", error);
		return "login";
		}
	}
	@RequestMapping("/toindex")
	public String toindex(Model model) throws Exception{
		
		
		return "admin/index";
		}
	}
 

@Controller
@RequestMapping("/schedule")
public class ScheduleController {
	@Autowired
	private ScheduleService scheduleService;
	
	@RequestMapping("/selectAll")
	public String selectAll(Model model ,@RequestParam(required=false,defaultValue="1") Integer page,
            @RequestParam(required=false,defaultValue="6") Integer pageSize){
		 PageHelper.startPage(page, pageSize);
		List<Schedule> schedule=scheduleService.selectAll();
		PageInfo<Schedule> p=new PageInfo<Schedule>(schedule);
		model.addAttribute("schedule", schedule);
		model.addAttribute("p", p);
		model.addAttribute("mainPage", "schedule.jsp");
		return "admin/main1";
	}
	@RequestMapping("/deleteschedule")
	public String deleteschedule(Integer id){
		scheduleService.deleteschedule(id);
		return "redirect:selectAll.action";
	}
	@RequestMapping("/insertschedule")
	public String insertschedule(Schedule schedule,Model model){
		scheduleService.insertschedule(schedule);
		
		return "redirect:selectAll.action";
		
	}
	@RequestMapping("/updateschedule")
	public String updateschedule(Schedule schedule,Model model){
		scheduleService.updateschedule(schedule);
		model.addAttribute("error", "更新成功");
		model.addAttribute("schedule", schedule);
		model.addAttribute("mainPage", "updateschedule.jsp");
		return "admin/main1";
		
	}
	@RequestMapping("/toinsert")
	public String toinsert(Model model){
		model.addAttribute("mainPage", "addschedule.jsp");
		
		return "admin/main1";
		
	}
	@RequestMapping("/toupdate")
	public String toupdate(Model model,Integer id){
		Schedule schedule=scheduleService.selectbyid(id);
		model.addAttribute("schedule", schedule);
		
		model.addAttribute("mainPage", "updateschedule.jsp");
		
		return "admin/main1";
		
	}
}

@Controller
public class HoustlistController {
	@Autowired
	private HouselistService houselistService;
	
	@RequestMapping("/houselist")
	public String houselist(Model model ,@RequestParam(required=false,defaultValue="1") Integer page,
            @RequestParam(required=false,defaultValue="6") Integer pageSize){
		
		 PageHelper.startPage(page, pageSize);
		List<Houselist> houselist=houselistService.selectAll();
	PageInfo<Houselist> p=new PageInfo<Houselist>(houselist);
		
				
		model.addAttribute("p", p);
		model.addAttribute("houselist",houselist);
		model.addAttribute("mainPage","houselist.jsp");
		return "zuke/main";
	}
	@RequestMapping("/ahouselist")
	public String ahouselist(Model model ,@RequestParam(required=false,defaultValue="1") Integer page,
            @RequestParam(required=false,defaultValue="6") Integer pageSize){
		
		 PageHelper.startPage(page, pageSize);
		List<Houselist> houselist=houselistService.selectAll();
	PageInfo<Houselist> p=new PageInfo<Houselist>(houselist);
		
				
		model.addAttribute("p", p);
		model.addAttribute("houselist",houselist);
		model.addAttribute("mainPage","ahouselist.jsp");
		return "admin/main1";
	}
	
	@RequestMapping("/addhouse")
	public String addhouse(Model model ,Houselist houselist){
		
		String houseid=houselist.getHouseid();
		Houselist houselist1=houselistService.findhouseid(houseid);
		if(houselist1!=null){
			model.addAttribute("error","该房屋id已存在");
			model.addAttribute("houselist",houselist);
			model.addAttribute("mainPage","addhouse.jsp");
			return "admin/main1";
		}else{
			model.addAttribute("error","添加成功");
			houselistService.inserthouse(houselist);
			model.addAttribute("houselist",houselist);
			model.addAttribute("mainPage","addhouse.jsp");
		return "admin/main1";
	}
		}
	
	@RequestMapping("/toaddhouse")
	public String toaddhoust(Model model){
		model.addAttribute("mainPage","addhouse.jsp");
		
		return "admin/main1";
	}
	@RequestMapping("/deletehouse")
	public String deletehouse(Integer id){
		houselistService.deletehouse(id);
		
		
		return "redirect:ahouselist.action";
	}
	@RequestMapping("/toahouselist")
	public String toahouselist(){
		
		
		
		return "ahouselist.action";
	}
	@RequestMapping("/findid")
	public String findid(Integer id,Model model){
		Houselist list=houselistService.findid(id);
		model.addAttribute("houselist",list);
		model.addAttribute("mainPage", "changehouse.jsp");
		return "admin/main1";
	}
	@RequestMapping("/findhouseidupdate")
	public String findhouseidupdate(Houselist houselist,Model model){
		Houselist list=houselistService.findhouseidupdate(houselist);
		if(list!=null){
			model.addAttribute("houselist",houselist);
			model.addAttribute("mainPage", "changehouse.jsp");
			model.addAttribute("error","该房屋id已存在");
			return "admin/main1";
		}
		else{
			houselistService.updatehouse(houselist);
			model.addAttribute("houselist",houselist);
			model.addAttribute("mainPage", "changehouse.jsp");
			model.addAttribute("error","更新成功");
			return "admin/main1";
		}
	}
	
}

@Controller
@RequestMapping("/hetong")
public class HetonGController {
	@Autowired
	private HetongService hetongService;
	@Autowired
	private HouselistService houselistService;
	@Autowired
	private ApplyService applyService;
	@Autowired
	private ZulistService zulistService;
	@Autowired
	private CheckoutService checkoutService;
	
	//新增合同信息，修改房屋列表的状态，从申请列表中删除，增添到租赁列表当中
	@RequestMapping("/inserthetong")
	public String inserthetong(Model model,Hetong hetong){
		//新增合同信息
		hetongService.inserthetong(hetong);
		Hetong hetong1=hetongService.findhetong(hetong.getHouse_id());
		//修改房屋列表状态
		Houselist houselist=houselistService.findhouseid(hetong1.getHouse_id());
		houselist.setStatus("已租赁");
		houselistService.updatehousestatus(houselist);
		//添加到租赁列表当中
		Zulist zulist=new Zulist();
		Apply apply=applyService.findbyhouse_id(hetong.getHouse_id());
		zulist.setHouse_id(hetong.getHouse_id());
		zulist.setUserlist_id(apply.getUserlist_id());
		zulist.setContract_id(hetong1.getId());
		zulist.setPrice(apply.getPrice());
		zulist.setAddress(apply.getAddress());
		zulistService.insertzulist(zulist);
		//从申请列表中删除
		applyService.deletebyhouse_id(hetong1.getHouse_id());
		model.addAttribute("error", "zusuccess");
		return "redirect:/zulist/findzulist.action";
		
	}
	@RequestMapping("/seehetong")
	public String seehetong(String house_id,Model model){
		Hetong hetong=hetongService.findhetong(house_id);
		model.addAttribute("hetong", hetong);
		model.addAttribute("mainPage", "hetong.jsp");
		return "admin/main1";
	}
	@RequestMapping("/updatehetong")
	public String updatehetong(String house_id,Model model){
		Hetong hetong=hetongService.findhetong(house_id);
		model.addAttribute("hetong", hetong);
		model.addAttribute("mainPage", "updatehetong.jsp");
		return "admin/main1";
	}
	@RequestMapping("/changehetong")
	public String changehetong(Hetong hetong){
		hetongService.updatehetong(hetong);
		
		return "redirect:/zulist/findzulist.action";
	}
	//终止合同操作：删除合同，插入已退租列表，删除在租列表，删除房屋列表
	
	@RequestMapping("/deletehetong")
	public String deletehetong(String house_id,Model model){
		hetongService.deletehetong(house_id);
		Zulist zulist=zulistService.findzulist(house_id);
		Checkout checkout=new Checkout();
		checkout.setHouse_id(house_id);
		checkout.setAddress(zulist.getAddress());
		checkout.setStatus("已退租");
		checkout.setUserlist_id(zulist.getUserlist_id());
		checkoutService.insertcheckout(checkout);
		houselistService.deletehousebyhouseid(house_id);
		zulistService.deletezulist(house_id);
		
		model.addAttribute("error", "checkoutsuccess");
		return "redirect:/zulist/findzulist.action";
	}
	
	@RequestMapping("/zukeseehetong")
	public String zukeseehetong(String house_id,Model model){
		Hetong hetong=hetongService.findhetong(house_id);
		model.addAttribute("hetong", hetong);
		model.addAttribute("mainPage", "showhetong.jsp");
		return "zuke/main";
	}
}