Java實戰(zhàn)花店商城系統(tǒng)的實現(xiàn)流程

更新時間：2022年01月18日 17:11:23 作者：qq_1334611189

只學(xué)書上的理論是遠(yuǎn)遠(yuǎn)不夠的，只有在實戰(zhàn)中才能獲得能力的提升，本篇文章手把手帶你用java+Springboot+Maven+mybatis+Vue+Mysql實現(xiàn)一個花店商城系統(tǒng),大家可以在過程中查缺補(bǔ)漏，提升水平

一、項目簡述

本系統(tǒng)功能包括：

商品的分類展示，用戶的注冊登錄，購物車，訂單結(jié)算，購物車加減，后臺商品管理，分類管理，訂單管理等等功能。

二、項目運行

環(huán)境配置：

Jdk1.8 + Tomcat8.5 + Mysql + HBuilderX（Webstorm也行）+ Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）。

項目技術(shù)：

Springboot + Maven + mybatis+ Vue 等等組成，B/S模式 + Maven管理等等。

用戶管理控制層：

/**
 * 用戶
 **/
@RestController
@RequestMapping("user")
public class UserController {
    @Autowired
    UserService userService;
    @Autowired
    UserDao dao;
 
    @RequestMapping("/test")
    R test() {
        R r = new R();
        return r.setCode(4000).setMsg(Constant.IMG_PATH).setData(dao.findAll());
    }
 
    @RequestMapping("/queryInfoByAccount")
    R queryInfoByAccount(@RequestParam("account") String account) {
        R r = new R();
        if (StringUtil.isEmpty(account)){
            return r.setCode(4000).setMsg(HttpMsg.INVALID_PARAM);
        }
        User loginUser = userService.queryInfo(account);
        if (loginUser == null){
            return r.setCode(4000).setMsg(HttpMsg.INVALID_USER);
        }
        return r.setCode(2000).setData(loginUser);
    }
 
 
    @RequestMapping("/find")
    R find(@RequestParam("page") int page, @RequestParam("searchKey") String searchKey) {
        R r = new R();
        Map<String, Object> map = new HashMap<>();
        List<User> users = userService.find(searchKey);
        if (users == null) {
            return r.setCode(2000);
        }
        List<User> items = users.size() >= page * Constant.PAGE_SIZE ?
                users.subList((page - 1) * Constant.PAGE_SIZE, page * Constant.PAGE_SIZE)
                : users.subList((page - 1) * Constant.PAGE_SIZE, users.size());
        int len = users.size() % Constant.PAGE_SIZE == 0 ? users.size() / Constant.PAGE_SIZE
                : (users.size() / Constant.PAGE_SIZE + 1);
        map.put("items", items);
        map.put("len", len);
        return r.setCode(2000).setData(map);
    }
 
 
    @RequestMapping("/create")
    R create(@RequestBody User user) {
        R r = new R();
        int ans = userService.add(user);
        if (ans == 1) {
            return r.setCode(2000).setMsg(HttpMsg.ADD_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.ADD_USER_FAILED);
    }
 
    @RequestMapping("/update")
    R update(@RequestBody User user) {
        R r = new R();
        int ans = userService.update(user);
        if (ans >= 0) {
            return r.setCode(2000).setMsg(HttpMsg.UPDATE_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.UPDATE_USER_FAILED);
    }
 
 
    @DeleteMapping("/delete")
    R delete(@RequestParam("id") int id) {
        R r = new R();
        int ans = userService.delete(id);
        if (ans == 1) {
            return r.setCode(2000).setMsg(HttpMsg.DELETE_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.DELETE_USER_FAILED);
    }
}

訂單管理控制層：

/**
 * 用戶
 **/
@RestController
@RequestMapping("order")
public class OrderController {
    @Autowired
    OrderService orderService;
    @Autowired
    UserDao userDao;
    @Autowired
    OrderDao orderDao;
    @Autowired
    FlowersDao flowersDao;
 
    @RequestMapping("/test")
    R test() {
        R r = new R();
        return r.setCode(4000).setMsg(Constant.IMG_PATH).setData(orderDao.findAll(null));
    }
 
    @RequestMapping("/queryByAccount")
    R queryByAccount(@RequestParam("account") String account) {
        R r = new R();
        if (StringUtil.isEmpty(account)) {
            return r.setCode(4000).setMsg(HttpMsg.INVALID_PARAM);
        }
        List<Order> orders = orderService.queryByAccount(account);
        return r.setCode(2000).setData(orders);
    }
 
    @RequestMapping("/find")
    R find(@RequestParam("page") int page, @RequestParam("searchKey") String searchKey, @RequestParam("account") String account) {
        R r = new R();
        Map<String, Object> map = new HashMap<>();
        List<Order> orders = orderService.find(searchKey, account);
        if (orders == null) {
            return r.setCode(2000);
        }
        map.put("items", orders);
        map.put("len", orders.size());
        return r.setCode(2000).setData(map);
    }
 
    @RequestMapping("/findAll")
    R findAll(@RequestParam("page") int page, @RequestParam("searchKey") String searchKey) {
        R r = new R();
        Map<String, Object> map = new HashMap<>();
        List<Order> orders = orderService.findAll(searchKey);
        if (orders == null) {
            return r.setCode(2000);
        }
        List<Order> items = orders.size() >= page * Constant.PAGE_SIZE ?
                orders.subList((page - 1) * Constant.PAGE_SIZE, page * Constant.PAGE_SIZE)
                : orders.subList((page - 1) * Constant.PAGE_SIZE, orders.size());
        int len = orders.size() % Constant.PAGE_SIZE == 0 ? orders.size() / Constant.PAGE_SIZE
                : (orders.size() / Constant.PAGE_SIZE + 1);
        List<OrderVo> vos = new ArrayList<>();
        for (Order item : items) {
            User user = userDao.queryById(item.getUid());
            OrderVo vo = new OrderVo();
            vo.setAddress(user.getAddress()).setPhone(user.getPhone()).setUsername(user.getName())
                    .setAmount(item.getAmount()).setFlower(item.getFlower()).setId(item.getId())
                    .setUid(item.getUid()).setOrder_guid(item.getOrder_guid()).setPrice(item.getPrice())
                    .setState(item.getState());
            vos.add(vo);
        }
        map.put("items", vos);
        map.put("len", len);
        return r.setCode(2000).setData(map);
    }
 
    @RequestMapping("/update")
    R update(@RequestBody Order order) {
        R r = new R();
        int ans = orderService.update(order);
        if (ans >= 0) {
            return r.setCode(2000).setMsg(HttpMsg.UPDATE_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.UPDATE_USER_FAILED);
    }
 
    @RequestMapping("/changeState")
    R changeState(@RequestBody Order order) {
        orderDao.changeState(order);
        return new R().setCode(2000).setMsg(HttpMsg.UPDATE_ORDER_OK);
    }
 
    @DeleteMapping("/delete")
    R delete(@RequestParam("id") int id) {
        R r = new R();
        int ans = orderService.delete(id);
        if (ans == 1) {
            return r.setCode(2000).setMsg(HttpMsg.DELETE_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.DELETE_USER_FAILED);
    }
}

購物車控制層：

/**
 * 用戶
 **/
@RestController
@RequestMapping("cart")
public class CartController {
    @Autowired
    CartService cartService;
    @Autowired
    OrderService orderService;
    @Autowired
    CartDao dao;
    @Autowired
    FlowersDao flowersDao;
 
    @RequestMapping("/test")
    R test() {
        R r = new R();
        return r.setCode(4000).setMsg(Constant.IMG_PATH).setData(dao.findAll());
    }
 
    @RequestMapping("/queryByAccount")
    R queryByAccount(@RequestParam("account") String account) {
        R r = new R();
        if (StringUtil.isEmpty(account)) {
            return r.setCode(4000).setMsg(HttpMsg.INVALID_PARAM);
        }
        List<Cart> carts = cartService.queryByAccount(account);
        for (Cart cart : carts) {
            float price = flowersDao.queryPrice(cart.getFid());
            cart.setPrice(cart.getAmount() * price);
        }
        return r.setCode(2000).setData(carts);
    }
 
 
    @RequestMapping("/find")
    R find(@RequestParam("page") int page, @RequestParam("searchKey") String searchKey, @RequestParam("account") String account) {
        R r = new R();
        Map<String, Object> map = new HashMap<>();
        List<Cart> carts = cartService.find(searchKey, account);
        if (carts == null) {
            return r.setCode(2000);
        }
        List<Cart> items = carts.size() >= page * Constant.PAGE_SIZE ?
                carts.subList((page - 1) * Constant.PAGE_SIZE, page * Constant.PAGE_SIZE)
                : carts.subList((page - 1) * Constant.PAGE_SIZE, carts.size());
        int len = carts.size() % Constant.PAGE_SIZE == 0 ? carts.size() / Constant.PAGE_SIZE
                : (carts.size() / Constant.PAGE_SIZE + 1);
        map.put("items", items);
        map.put("len", len);
        return r.setCode(2000).setData(map);
    }
 
    @RequestMapping("/buy")
    R buy(@RequestParam("account") String account) {
        R r = new R();
        // 查該用戶的購物車
        List<Cart> carts = (List<Cart>) queryByAccount(account).getData();
        for (Cart cart : carts) {
            // 增加訂單數(shù)據(jù)
            orderService.add(cart);
            // 刪除購物車數(shù)據(jù)
            cartService.delete(cart.getId());
        }
        return r.setCode(2000).setMsg(HttpMsg.BUY_OK);
    }
 
 
    @RequestMapping("/create")
    R create(@RequestBody Cart cart) {
        R r = new R();
        int ans = cartService.add(cart);
        if (ans == 1) {
            return r.setCode(2000).setMsg(HttpMsg.ADD_CART_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.ADD_CART_FAILED);
    }
 
    @RequestMapping("/update")
    R update(@RequestBody Cart cart) {
        R r = new R();
        int ans = cartService.update(cart);
        if (ans >= 0) {
            return r.setCode(2000).setMsg(HttpMsg.UPDATE_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.UPDATE_USER_FAILED);
    }
 
 
    @DeleteMapping("/delete")
    R delete(@RequestParam("id") int id) {
        R r = new R();
        int ans = cartService.delete(id);
        if (ans == 1) {
            return r.setCode(2000).setMsg(HttpMsg.DELETE_USER_OK);
        }
        return r.setCode(4000).setMsg(HttpMsg.DELETE_USER_FAILED);
    }
}

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