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Java如何实现茶叶售卖商城系统

发表于:2025-01-19 作者:千家信息网编辑
千家信息网最后更新 2025年01月19日,本篇内容介绍了"Java如何实现茶叶售卖商城系统"的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!前言这
千家信息网最后更新 2025年01月19日Java如何实现茶叶售卖商城系统

本篇内容介绍了"Java如何实现茶叶售卖商城系统"的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!

前言

这是一个应用SSM框架的项目,前端页面整洁清晰。该系统有两个角色,一个是普通用户,另一个是管理员。

普通用户具有注册、登录、查看商品、添加购物车、添加商品收藏、下订单、商品评价、用户地址管理等等功能。

管理员具有登录、管理用户信息、管理商品信息、管理商品活动信息、管理订单信息、管理用户评论信息的等等功能。

应用技术:Jsp + SSM + EasyUi

运行环境:eclipse/IDEA + MySQL5.7 + Tomcat8.5 + JDK1.8

实现效果

主要代码

用户管理控制层

@WebServlet("/frontstage_userServlet")public class UserServlet extends HttpServlet {        UserService service = new UserService();         @Override        protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {                String action = req.getParameter("action");                 switch (action) {                case "login":                        login(req, resp);                        break;                case "checkUserNameRepeat":                        checkUserNameRepeat(req, resp);                        break;                case "register":                        register(req, resp);                        break;                case "logout":                        logout(req, resp);                        break;                case "checkOldPassword":                        checkOldPassword(req, resp);                        break;                case "modifyPassword":                        modifyPassword(req, resp);                        break;                }        }         public void login(HttpServletRequest req, HttpServletResponse resp) throws IOException {                //设置请求编码格式:                req.setCharacterEncoding("utf-8");                //设置响应编码格式                                      resp.setContentType("text/html;charset=utf-8");                String userName = req.getParameter("userName");                String password = req.getParameter("password");                String captcha = req.getParameter("captcha");                if (captcha != null) {                        captcha = captcha.toUpperCase();                }                 // 先进行验证码验证                String checkcode = (String) req.getSession().getAttribute("checkcode_session");                 try {                        // 将用户输入的验证码和 系统验证对比                        if (checkcode.equals(captcha)) {                                User user = service.getUserByNameAndPassword(userName, password);                                if (user != null) {                                        HttpSession session = req.getSession();                                        session.setAttribute("user", user);                                        JSONResult ok = JSONResult.ok();                                        resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                                } else {                                        // 将错误信息封装在结果集中                                        JSONResult result = JSONResult.errorMsg("用户名或密码错误,请重试");                                        // 以json的形式返回给前端                                        resp.getWriter().println(JsonUtil.javaObjectToJson(result));                                }                        } else {                                // 将错误信息封装在结果集中                                JSONResult result = JSONResult.errorMsg("验证码输入错误,请重试");                                // 以json的形式返回给前端                                resp.getWriter().println(JsonUtil.javaObjectToJson(result));                        }                } catch (Exception e) {                        e.printStackTrace();                }        }         /**         * 用户名重名检测         *          * @param req         * @param resp         */        public void checkUserNameRepeat(HttpServletRequest req, HttpServletResponse resp) {                String userName = req.getParameter("userName");                 if (userName != null) {                        int d = service.checkUserNameRepeat(userName);                        try {                                if (d > 0) {                                        JSONResult error = JSONResult.errorMsg("");                                        resp.getWriter().println(JsonUtil.javaObjectToJson(error));                                } else {                                        JSONResult ok = JSONResult.ok();                                        resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                                }                        } catch (Exception e) {                                e.printStackTrace();                        }                }        }         /**         * 用户注册         *          * @param req         * @param resp         * @throws IOException          */        public void register(HttpServletRequest req, HttpServletResponse resp) throws IOException {                //设置请求编码格式:                req.setCharacterEncoding("utf-8");                //设置响应编码格式                                      resp.setContentType("text/html;charset=utf-8");                User user = new User();                user.setUserName(req.getParameter("userName"));                user.setPassword(req.getParameter("password"));                user.setEmail(req.getParameter("email"));                user.setPhone(req.getParameter("phoneNum"));                user.setRole("ordinaryUser");                int d = service.addUser(user);                try {                        if (d > 0) {                                JSONResult ok = JSONResult.ok();                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        } else {                                JSONResult error = JSONResult.errorMsg("注册失败");                                resp.getWriter().println(JsonUtil.javaObjectToJson(error));                        }                } catch (Exception e) {                        e.printStackTrace();                }        }         /**         * 退出登录         */        public void logout(HttpServletRequest req, HttpServletResponse resp) {                req.getSession().removeAttribute("user");                try {                        resp.sendRedirect("index.jsp");                } catch (IOException e) {                        e.printStackTrace();                }        }         /**         * 检查旧密码是否正确 ,在修改密码操作时使用         * @throws IOException          */        public void checkOldPassword(HttpServletRequest req, HttpServletResponse resp) throws IOException {                //设置请求编码格式:                req.setCharacterEncoding("utf-8");                //设置响应编码格式                                      resp.setContentType("text/html;charset=utf-8");                User user = (User) req.getSession().getAttribute("user");                         String oldPassword = service.getPasswordById(user.getId());                System.out.println("旧密码:"+oldPassword);                String password = req.getParameter("password");                System.out.println("旧密码验证:"+password);                try {                        if (!oldPassword.equals(password)) {                                JSONResult errorMsg = JSONResult.errorMsg("原始密码错误,请重新输入");                                resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));                        } else {                                JSONResult ok = JSONResult.ok();                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        }                } catch (IOException e) {                        e.printStackTrace();                }         }         /**         * 修改密码         * @throws IOException          */        public void modifyPassword(HttpServletRequest req, HttpServletResponse resp) throws IOException {                //设置请求编码格式:                req.setCharacterEncoding("utf-8");                //设置响应编码格式                                      resp.setContentType("text/html;charset=utf-8");                 String password = req.getParameter("newPassword");                System.out.println("新密码:"+password);                User user = (User) req.getSession().getAttribute("user");                int id = user.getId();                System.out.println("旧密码id"+id);                int d = service.updatePasswordById(id, password);                try {                        if (d > 0) {                                JSONResult ok = JSONResult.ok();                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        } else {                          JSONResult errorMsg = JSONResult.errorMsg("修改失败,请重试");                          resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));                        }                 } catch (Exception e) {                        e.printStackTrace();                }        } }

商品管理服务类

@WebServlet("/frontstage_goodsServlet")public class GoodsServlet extends HttpServlet{        GoodsService service = new GoodsService();                        @Override        protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {                String action = req.getParameter("action");                switch(action) {                        case "findAllGoods":findAllGoods(req,resp);break;                        case "findGoodsById":findGoodsById(req,resp);break;                        case "findGoodsByType":findGoodsByType(req,resp);break;                }        }                        /**         * 获取所有商品列表         * @param req         * @param resp         */        public void findAllGoods(HttpServletRequest req, HttpServletResponse resp) {                Map> allGoods = service.getAllGoods();                                try {                        req.setAttribute("allGoods", allGoods);                        req.getRequestDispatcher("/main.jsp").forward(req, resp);                        return;                } catch (ServletException e) {                        e.printStackTrace();                } catch (IOException e) {                        e.printStackTrace();                }        }                /**         *根据类型获得商品列表          * @param req         * @param resp         */        public void findGoodsByType(HttpServletRequest req, HttpServletResponse resp) {                String type = req.getParameter("type");                String currentPage = req.getParameter("currentPage");                                PageBean pageBean = null;                                // 如果当前第几页currentPage 值为null,说明第一次跳转到此页面或者是要跳转到首页,则设定该值currentPage默认为1                if(currentPage == null) {                        pageBean = service.getGoodsByType(type, 4, 1);                }else {                                                pageBean = service.getGoodsByType(type, 4, Integer.parseInt(currentPage));                }                                try {                        req.setAttribute("pageBean", pageBean);                        req.setAttribute("type", type);                                                req.getRequestDispatcher("/product.jsp").forward(req, resp);                 } catch (Exception e) {                        e.printStackTrace();                }        }                        /**         * 获取商品的详细信息         * @param req         * @param resp         */        public void findGoodsById(HttpServletRequest req, HttpServletResponse resp) {                int id =Integer.parseInt(req.getParameter("id"));                                Goods goodsInfo = service.getGoodsInfoById(id);                                try {                        req.setAttribute("pro", goodsInfo);                        req.getRequestDispatcher("/productInfo_user.jsp").forward(req, resp);                 } catch (Exception e) {                        e.printStackTrace();                }        }}

订单控制层

@WebServlet("/backstage_ordersServlet")public class OrdersServlet extends HttpServlet{                OrdersService service = new OrdersService();                @Override        protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {                String action = req.getParameter("action");                System.out.println(action);                switch(action) {                        case "getOrdersList":getOrdersList(req,resp);break;                        case "getOrdersListByName":getOrdersListByName(req,resp);break;                        case "deleteOrders":deleteOrders(req,resp);break;                        case "deleteAllOrders":deleteAllOrders(req,resp);break;                        case "toOrdersUpdatePage":toOrdersUpdatePage(req,resp);break;                        case "updateOrders":updateOrders(req,resp);break;                        case "fastbuy":sendOrder(req,resp);break;                }        }         /*          * 删除全部订单          */        private void deleteAllOrders(HttpServletRequest req, HttpServletResponse resp) throws IOException {                //设置请求编码格式:                                req.setCharacterEncoding("utf-8");                                //设置响应编码格式                                                      resp.setContentType("text/html;charset=utf-8");                // TODO 自动生成的方法存根                int d = service.deleteAllOrders();                try {                        if(d>0) {                                JSONResult ok = JSONResult.ok();                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        }else {                                JSONResult errorMsg = JSONResult.errorMsg("删除失败,请重试");                                resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));                        }                                                               } catch (Exception e) {                        e.printStackTrace();                }        }         /**         * 提交订单         * @throws IOException          */        public void sendOrder(HttpServletRequest req, HttpServletResponse resp) throws IOException {                //设置请求编码格式:                                req.setCharacterEncoding("utf-8");                                //设置响应编码格式                                                      resp.setContentType("text/html;charset=utf-8");                        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//设置日期格式                        User user =(User) req.getSession().getAttribute("user");                        Orders order = new Orders();                        order.setNumber(order.getRandomString(10));                        order.setTime(df.format(new Date()));                        order.setName(req.getParameter("recipients"));                        order.setAddress(req.getParameter("address"));                        order.setPhone(req.getParameter("phone"));                        order.setAddress_label(req.getParameter("addressLabel"));                        order.setSex(req.getParameter("sex"));                        order.setUser(user.getUserName());                        order.setGoods_id(Integer.parseInt(req.getParameter("id")));                        order.setGoods_num(Integer.parseInt(req.getParameter("num")));                        order.setGoods_status(1);                        int d = service.addOrder(order);                                try {                                        if(d>0) {                                                JSONResult ok = JSONResult.ok();                                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                                        }else {                                                JSONResult error = JSONResult.errorMsg("订单提交失败!");                                                resp.getWriter().println(JsonUtil.javaObjectToJson(error));                                        }                                } catch (Exception e) {                                        e.printStackTrace();                                }                               }                 /**         * 向前端页面返回订单数据列表         */        public void getOrdersList(HttpServletRequest req,HttpServletResponse resp) {                List allOrders = service.getAllOrders();                req.setAttribute("ordersList",allOrders);                try {                        req.getRequestDispatcher("/backstage/tgls/ordersManage/orders_list.jsp").forward(req, resp);                } catch (ServletException e) {                        e.printStackTrace();                } catch (IOException e) {                        e.printStackTrace();                }               }                        /**         * 根据订单名查询商品(注意!类别没改)         * @param req         * @param resp         * @throws IOException          */        public void getOrdersListByName(HttpServletRequest req,HttpServletResponse resp) throws IOException {                //设置请求编码格式:                                req.setCharacterEncoding("utf-8");                                //设置响应编码格式                                                      resp.setContentType("text/html;charset=utf-8");                String name = req.getParameter("OrdersUser");                //String type = req.getParameter("type");                                Map parmas = new HashMap<>();                parmas.put("name", name);                //parmas.put("type", type);                                List list = service.getOrdersByName(parmas);                        try {                        if(list != null) {                                JSONResult ok = JSONResult.ok(list);                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        }else {                                JSONResult errorMsg = JSONResult.errorMsg("未获取到任何数据,请重试");                                resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));                        }                                                               } catch (Exception e) {                        e.printStackTrace();                }        }                        /**         * 修改订单时,获取此订单的全部数据,并返回至修改页面         */        public void toOrdersUpdatePage(HttpServletRequest req,HttpServletResponse resp) {                int id = Integer.parseInt(req.getParameter("id"));                Orders orders = service.getOrdersInfoById(id);                req.setAttribute("orders", orders);                try {                        req.getRequestDispatcher("/backstage/tgls/ordersManage/orders_update.jsp").forward(req, resp);                } catch (ServletException e) {                        e.printStackTrace();                } catch (IOException e) {                        e.printStackTrace();                }                               }                /**         *  修改订单         * @throws IOException          */                public void updateOrders(HttpServletRequest req,HttpServletResponse resp) throws IOException {                //设置请求编码格式:                req.setCharacterEncoding("utf-8");                //设置响应编码格式                                      resp.setContentType("text/html;charset=utf-8");                Orders orders = new Orders();                orders.setId(Integer.parseInt(req.getParameter("id")));                orders.setNumber(req.getParameter("number"));                orders.setUser(req.getParameter("user"));                orders.setTime(req.getParameter("time"));                orders.setName(req.getParameter("name"));                orders.setSex(req.getParameter("sex"));                orders.setAddress(req.getParameter("address"));                orders.setPhone(req.getParameter("phone"));                orders.setAddress_label(req.getParameter("address_label"));                orders.setGoods_id(Integer.parseInt(req.getParameter("goods_id")));                orders.setGoods_num(Integer.parseInt(req.getParameter("goods_num")));                orders.setGoods_status(Integer.parseInt(req.getParameter("goods_status")));                                System.out.println(orders);                int d = service.updateOrdersById(orders);                System.out.println(d);                try {                        if(d>0) {                                                                JSONResult ok = JSONResult.ok();                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        }else {                                JSONResult errorMsg = JSONResult.errorMsg("修改失败,请重试");                                resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));                        }                               } catch (Exception e) {                        e.printStackTrace();                }        }                         /**         * 删除订单         * @throws UnsupportedEncodingException          */        public void deleteOrders(HttpServletRequest req,HttpServletResponse resp) throws UnsupportedEncodingException {                //设置请求编码格式:                req.setCharacterEncoding("utf-8");                //设置响应编码格式                                      resp.setContentType("text/html;charset=utf-8");                int id = Integer.parseInt(req.getParameter("id"));                                int d = service.deleteOrdersById(id);                try {                        if(d>0) {                                JSONResult ok = JSONResult.ok();                                resp.getWriter().println(JsonUtil.javaObjectToJson(ok));                        }else {                                JSONResult errorMsg = JSONResult.errorMsg("删除失败,请重试");                                resp.getWriter().println(JsonUtil.javaObjectToJson(errorMsg));                        }                                                               } catch (Exception e) {                        e.printStackTrace();                }        }}

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