Java 实战范例之校园二手市场系统的实现

一、项目简述（ +IW文档）

功能：本系统分用户前台和管理员后台。 本系统用例模型有三种，分别是游客、注册用户和系统管 理员。下面分别对这三个角色的功能进行描述： 1） 诞 游客是未注册的用户，他们可以浏览物物品，可以搜索物 品，如需购买物品，必须先注册成为网站用户。游客主要 功触吓： a.浏览物品 b.搜索物品 c.注册成为网站用户 2） 注册用户 注册用户是经过网站合法认证的用户，登录网站后可以浏 览物品、搜索物品、发布物品、关注物品、购买物品和查 看个人中心。 3） 系统管理员 系统管理员主要负责系统的后台管理工作，主要功能如 下： 用户管理，商品管理等等。

二、项目运行

环境配置： Jdk1.8 + Tomcat8.5 + mysql + Eclispe （ IntelliJ IDEA,Eclispe,MyEclispe,Sts 都支持）

项目技术： JSP +Spring + SpringMVC + MyBatis + html+ css + JavaScript + JQuery + Ajax + layui+ maven等等。

用户信息管理控制器：

@Controller
@RequestMapping(value = "user")
public class UserController {
	private final GoodService goodService;
	private final OrderService orderService;
	private final ReviewService reviewService;
	private final UserService userService;
	private final CollectService collectService;

	@Autowired
	public UserController(GoodService goodService, OrderService orderService,
			ReviewService reviewService, UserService userService,
			CollectService collectService) {
		this.goodService = goodService;
		this.orderService = orderService;
		this.reviewService = reviewService;
		this.userService = userService;
		this.collectService = collectService;
	}

	@RequestMapping(value = "userProfile", method = RequestMethod.GET)
	public String getMyProfile(ModelMap model, HttpSession session) {
		User user = (User) session.getAttribute("user");
		if (user == null) {
			return "redirect:/";
		}
		List<Collect> collects = collectService
				.getCollectByUserId(user.getId());
		for (Collect collect : collects) {
			collect.setGood(goodService.getGoodById(collect.getGoodId()));
		}
		List<Good> goods = goodService.getGoodByUserId(user.getId());
		List<Order> orders = orderService.getOrderByCustomerId(user.getId());
		List<Review> reviews = reviewService.gerReviewByToUserId(user.getId());
		List<Reply> replies = reviewService.gerReplyByToUserId(user.getId());
		List<Order> sellGoods = orderService.getOrderBySellerId(user.getId());
		model.addAttribute("collects", collects);
		model.addAttribute("goods", goods);
		model.addAttribute("orders", orders);
		model.addAttribute("reviews", reviews);
		model.addAttribute("replies", replies);
		model.addAttribute("sellGoods", sellGoods);
		return "user/userProfile";
	}

	@RequestMapping(value = "/review", method = RequestMethod.GET)
	public String getReviewInfo(@RequestParam(required = false) Integer goodId,
			@RequestParam(required = false) Integer reviewId) {
		System.out.println("reviewId" + reviewId);
		if (reviewId != null) {
			System.out.println("reviewId" + reviewId);
			if (reviewService.updateReviewStatus(1, reviewId) == 1) {
				return "redirect:/goods/goodInfo?goodId=" + goodId;
			}
		}
		return "redirect:/user/userProfile";
	}

	@RequestMapping(value = "/reply", method = RequestMethod.GET)
	public String getReplyInfo(
			@RequestParam(required = false) Integer reviewId,
			@RequestParam(required = false) Integer replyId) {
		if (replyId != null) {
			if (reviewService.updateReplyStatus(1, replyId) == 1) {
				Integer goodId = reviewService.getGoodIdByReviewId(reviewId);
				return "redirect:/goods/goodInfo?goodId=" + goodId;
			}
		}
		return "redirect:/user/userProfile";
	}

	@RequestMapping(value = "/userEdit", method = RequestMethod.GET)
	public String getUserEdit(ModelMap model,
			@RequestParam(value = "userId", required = false) Integer userId,
			HttpSession session) {
		User sessionUser = (User) session.getAttribute("user");
		if (sessionUser == null) {
			return "redirect:/";
		}
		User user = userService.getUserById(userId);
		List<Order> sellGoods = orderService.getOrderBySellerId(user.getId());
		List<Review> reviews = reviewService.gerReviewByToUserId(user.getId());
		List<Reply> replies = reviewService.gerReplyByToUserId(user.getId());
		model.addAttribute("user", user);
		model.addAttribute("sellGoods", sellGoods);
		model.addAttribute("reviews", reviews);
		model.addAttribute("replies", replies);
		return "user/userEdit";
	}

	@RequestMapping(value = "/userEdit", method = RequestMethod.POST)
	public String postUserEdit(ModelMap model, @Valid User user,
			HttpSession session,
			@RequestParam(value = "photo", required = false) MultipartFile photo)
			throws IOException {
		String status;
		Boolean insertSuccess;
		User sessionUser = (User) session.getAttribute("user");
		user.setId(sessionUser.getId());
		InfoCheck infoCheck = new InfoCheck();
		if (!infoCheck.isMobile(user.getMobile())) {
			status = "请输入正确的手机号！";
		} else if (!infoCheck.isEmail(user.getEmail())) {
			status = "请输入正确的邮箱！";
		} else if (userService.getUserByMobile(user.getMobile()).getId() != user
				.getId()) {
			System.out.println(userService.getUserByMobile(user.getMobile())
					.getId() + " " + user.getId());
			status = "此手机号码已使用！";
		} else if (userService.getUserByEmail(user.getEmail()).getId() != user
				.getId()) {
			status = "此邮箱已使用！";
		} else {
			if (!photo.isEmpty()) {
				RandomString randomString = new RandomString();
				FileCheck fileCheck = new FileCheck();
				String filePath = "/statics/image/photos/" + user.getId();
				String pathRoot = fileCheck.checkGoodFolderExist(filePath);
				String fileName = user.getId()
						+ randomString.getRandomString(10);
				String contentType = photo.getContentType();
				String imageName = contentType.substring(contentType
						.indexOf("/") + 1);
				String name = fileName + "." + imageName;
				photo.transferTo(new File(pathRoot + name));
				String photoUrl = filePath + "/" + name;
				user.setPhotoUrl(photoUrl);
			} else {
				String photoUrl = userService.getUserById(user.getId())
						.getPhotoUrl();
				user.setPhotoUrl(photoUrl);
			}
			insertSuccess = userService.updateUser(user);
			if (insertSuccess) {
				session.removeAttribute("user");
				session.setAttribute("user", user);
				return "redirect:/user/userProfile";
			} else {
				status = "修改失败！";
				model.addAttribute("user", user);
				model.addAttribute("status", status);
				return "user/userEdit";
			}
		}
		System.out.println(user.getMobile());
		System.out.println(status);
		model.addAttribute("user", user);
		model.addAttribute("status", status);
		return "user/userEdit";
	}

	@RequestMapping(value = "/password/edit", method = RequestMethod.POST)
	public ResponseEntity editPassword(@RequestBody Password password) {
		User user = userService.getUserById(password.getUserId());
		String oldPass = DigestUtils
				.md5DigestAsHex((password.getOldPassword() + user.getCode())
						.getBytes());
		if (oldPass.equals(user.getPassword())) {
			RandomString randomString = new RandomString();
			String code = (randomString.getRandomString(5));
			String md5Pass = DigestUtils.md5DigestAsHex((password
					.getNewPassword() + code).getBytes());
			Boolean success = userService.updatePassword(md5Pass, code,
					password.getUserId());
			if (success) {
				return ResponseEntity.ok(true);
			} else {
				return ResponseEntity.ok("密码修改失败！");
			}
		} else {
			return ResponseEntity.ok("原密码输入不正确！");
		}
	}

}

订单控制器：

@Controller
public class OrderController {
	private final GoodService goodService;
	private final OrderService orderService;

	@Autowired
	public OrderController(GoodService goodService, OrderService orderService) {
		this.goodService = goodService;
		this.orderService = orderService;
	}

	@RequestMapping(value = "/user/orderInfo", method = RequestMethod.GET)
	public String getOrderInfo(ModelMap model,
			@RequestParam(value = "orderId", required = false) Integer orderId,
			HttpSession session) {
		User sessionUser = (User) session.getAttribute("user");
		if (sessionUser == null) {
			return "redirect:/";
		}
		Order orderInfo = orderService.getOrderById(orderId);
		List<Order> orders = orderService.getOtherOrderByCustomerId(
				sessionUser.getId(), orderId);
		model.addAttribute("orderInfo", orderInfo);
		model.addAttribute("orders", orders);
		return "user/orderInfo";
	}

	@RequestMapping(value = "/user/sellerInfo", method = RequestMethod.GET)
	public String getSellerInfo(ModelMap model,
			@RequestParam(value = "orderId", required = false) Integer orderId,
			HttpSession session) {
		User sessionUser = (User) session.getAttribute("user");
		if (sessionUser == null) {
			return "redirect:/";
		}
		Order orderInfo = orderService.getOrderById(orderId);
		List<Order> orders = orderService.getOtherOrderBySellerId(
				sessionUser.getId(), orderId);
		model.addAttribute("orderInfo", orderInfo);
		model.addAttribute("orders", orders);
		System.out.println("sellerInfo.size:" + orders.size());
		return "user/sellerInfo";
	}

	@RequestMapping(value = "/user/order/delete/{orderId}", method = RequestMethod.GET)
	public ResponseEntity deleteOrderById(@PathVariable Integer orderId) {
		Boolean success;
		success = orderService.deleteOrderById(orderId) > 0;
		return ResponseEntity.ok(success);
	}

	@RequestMapping(value = "/user/sellerOrder/delete/{orderId}&{goodId}", method = RequestMethod.GET)
	public ResponseEntity deleteSellerOrderById(@PathVariable Integer orderId,
			@PathVariable Integer goodId) {
		Boolean success;
		success = goodService.updateGoodStatusId(1, goodId) > 0;
		if (success) {
			success = orderService.deleteOrderById(orderId) > 0;
		}
		return ResponseEntity.ok(success);
	}

	@RequestMapping(value = "/user/order/update/status/{orderId}&{statusId}", method = RequestMethod.GET)
	public ResponseEntity updateOrderStatus(@PathVariable Integer orderId,
			@PathVariable Integer statusId) {
		Boolean success = orderService.updateStatus(statusId, orderId) > 0;
		if (success) {
			Order order = orderService.getOrderById(orderId);
			return ResponseEntity.ok(order);
		}
		return ResponseEntity.ok(success);
	}

	@RequestMapping(value = "/user/order/create", method = RequestMethod.POST)
	public ResponseEntity createOrder(@RequestBody Order order) {
		Boolean success = orderService.insertOrder(order) > 0;
		if (success) {
			success = goodService.updateGoodStatusId(0, order.getGoodId()) > 0;
			if (success) {
				return ResponseEntity.ok(order.getId());
			} else {
				orderService.deleteOrderById(order.getId());
				return ResponseEntity.ok(success);
			}
		}
		return ResponseEntity.ok(success);
	}

	@RequestMapping(value = "/user/order/allOrder", method = RequestMethod.GET)
	public ResponseEntity getAllOrders() {
		List<Order> orderList = orderService.getOrderList();
		return ResponseEntity.ok(orderList);
	}
}

后台用户管理控制器：

@Controller
@RequestMapping(value = "admin")
public class AdminController {

    private final UserService userService;
    private final GoodService goodService;
    private final TypeService typeService;
    private final OrderService orderService;

    @Autowired
    public AdminController(UserService userService, GoodService goodService, TypeService typeService, OrderService orderService) {
        this.userService = userService;
        this.goodService = goodService;
        this.typeService = typeService;
        this.orderService = orderService;
    }

    @RequestMapping(value = "/adminLogin", method = RequestMethod.GET)
    public String getAdminLogin(){
        return "admin/adminLogin";
    }

    @RequestMapping(value = "/adminLogin", method = RequestMethod.POST)
    public String postAdminLogin(ModelMap model,
                                 @RequestParam(value = "email", required = false) String email,
                                 @RequestParam(value = "password", required = false) String password,
                                 HttpSession session) {
        User admin = userService.getUserByEmail(email);
        String message;
        if (admin != null){
            String mdsPass = DigestUtils.md5DigestAsHex((password + admin.getCode()).getBytes());
//            if (!mdsPass .equals(admin.getPassword())){
//                message = "用户密码错误！";
//            }
            if (!password .equals(admin.getPassword())){
                message = "用户密码错误！";
            } else if (admin.getRoleId() != 101){
                message = "用户没有权限访问！";
            } else {
                session.setAttribute("admin",admin);
                return "redirect:/admin/adminPage";
            }
        } else {
            message = "用户不存在！";
        }
        model.addAttribute("message", message);
        return "admin/adminLogin";
    }

    @RequestMapping(value = "/adminLogout", method = RequestMethod.GET)
    public String adminLogout(@RequestParam(required = false, defaultValue = "false" )String adminLogout, HttpSession session){
        if (adminLogout.equals("true")){
            session.removeAttribute("admin");
        }
//        adminLogout = "false";
        return "redirect:/";
    }

    @RequestMapping(value = "/adminPage", method = RequestMethod.GET)
    public String getAdminPage(ModelMap model,
                               HttpSession session){
        User admin = (User) session.getAttribute("admin");
        if (admin == null){
            return "redirect:/admin/adminLogin";
        }
        List<Good> goodList = goodService.getAllGoodList();
        for (Good good : goodList) {
            good.setGoodUser(userService.getUserById(good.getUserId()));
            good.setGoodSecondType(typeService.getSecondTypeById(good.getSecondTypeId()));
        }
        List<User> userList = userService.getAllUser();
        List<FirstType> firstTypeList = typeService.getAllFirstType();
        List<Order> orderList = orderService.getOrderList();
        model.addAttribute("goodList", goodList);
        model.addAttribute("userList", userList);
        model.addAttribute("firstTypeList", firstTypeList);
        model.addAttribute("orderList", orderList);
        return "admin/adminPage";
    }
    @RequestMapping(value = "/user/update/status/{statusId}&{userId}", method = RequestMethod.GET)
    public ResponseEntity updateUserStatus(@PathVariable Integer statusId,
                                            @PathVariable Integer userId){
        Boolean success = userService.updateUserStatus(statusId, userId);
        if (success){
            List<User> userList = userService.getAllUser();
            return ResponseEntity.ok(userList);
        }
        return ResponseEntity.ok(success);
    }

    @RequestMapping(value = "/user/delete/{userId}", method = RequestMethod.GET)
    public ResponseEntity deleteUser(@PathVariable Integer userId){
        Boolean success = userService.deleteUser(userId);
        if (success){
            List<User> userList = userService.getAllUser();
            return ResponseEntity.ok(userList);
        }
        return ResponseEntity.ok(success);
    }

}

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