Java实战之小蜜蜂扩音器网上商城系统的实现 Java实战之小蜜蜂扩音器网上商

一、项目简述
二、项目运行
三、效果图
四、核心代码

用户管理控制层
订单管理控制层
品类控制层
产品控制层

一、项目简述用户功能模块：用户注册：用户登录：商品模块：订单模块；后台管理系统功能：管理员模块：商品模块：订单管理模块；

二、项目运行 1.运行环境
JDK1.8+Tomcat8.5+MYSQL+Eclispe（Eclispe,MyEclispe,Sts，IntelliJ IDEA都支持,小伙伴自行配置即可）
2.技术栈
JSP + Servlet + JDBC + Ajax + JavaScript + CSS + +DBUtil 等等
【Java实战之小蜜蜂扩音器网上商城系统的实现】
三、效果图

文章图片

文章图片

四、核心代码
用户管理控制层

public class UserServlet extends BaseBackServlet { @Overridepublic String add(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 UserServlet add方法"); return null; } @Overridepublic String delete(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 UserServlet delete方法"); int id = Integer.parseInt(request.getParameter("id")); userDAO.delete(id); return "@admin_user_list"; } @Overridepublic String update(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 UserServlet update方法"); Map params = new HashMap<>(); InputStream is = super.parseUpload(request, params); System.out.println(params); int id = Integer.parseInt(params.get("id")); String password = params.get("password"); User user = userDAO.get(id); user.setPassword(password); userDAO.update(user); return "@admin_user_list"; } @Overridepublic String edit(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 UserServlet edit方法"); int id = Integer.parseInt(request.getParameter("id")); User u = userDAO.get(id); request.setAttribute("u", u); return "admin/editUser.jsp"; } @Overridepublic String list(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 UserServlet list方法"); List us = userDAO.list(page.getStart(), page.getCount()); int total = userDAO.getTotal(); page.setTotal(total); request.setAttribute("us", us); request.setAttribute("page", page); return "admin/listUser.jsp"; }}

订单管理控制层

public class OrderServlet extends BaseBackServlet { @Overridepublic String add(HttpServletRequest request, HttpServletResponse response, Page page) {return null; } @Overridepublic String delete(HttpServletRequest request, HttpServletResponse response, Page page) {return null; } @Overridepublic String update(HttpServletRequest request, HttpServletResponse response, Page page) {return null; } @Overridepublic String edit(HttpServletRequest request, HttpServletResponse response, Page page) {return null; } public String delivery(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 OrderServlet delivery方法"); int id = Integer.parseInt(request.getParameter("id")); Order o = orderDAO.get(id); o.setDeliveryDate(new Date()); o.setStatus(OrderDAO.waitConfirm); orderDAO.update(o); return "@admin_order_list"; } @Overridepublic String list(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了 OrderServlet list方法"); // 对订单对应的订单项进行初始化List os = orderDAO.list(page.getStart(), page.getCount()); orderItemDAO.fill(os); int total = orderDAO.getTotal(); page.setTotal(total); request.setAttribute("os", os); request.setAttribute("page", page); return "admin/listOrder.jsp"; }}

品类控制层

public class CategoryServlet extends BaseBackServlet { @Overridepublic String add(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了category add方法"); Map params = new HashMap<>(); InputStream is = super.parseUpload(request, params); System.out.println(params); String name = params.get("name"); Category c = new Category(); c.setName(name); categoryDAO.add(c); File imageFolder = new File(request.getSession().getServletContext().getRealPath("img/category")); File file = new File(imageFolder, c.getId() + ".jpg"); try{if(null != is && 0 != is.available()){try(FileOutputStream fos = new FileOutputStream(file); ){byte[] b = new byte[1024 * 1024]; int length = 0; while(-1 != (length = is.read(b))){fos.write(b, 0, length); }fos.flush(); //通过以下代码，将文件保存为jsp格式BufferedImage img = ImageUtil.change2jpg(file); ImageIO.write(img, "jpg", file); }}} catch (IOException e) {e.printStackTrace(); }return "@admin_category_list"; } @Overridepublic String delete(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了category delete方法"); int id = Integer.parseInt(request.getParameter("id")); categoryDAO.delete(id); return "@admin_category_list"; } @Overridepublic String update(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了category update方法"); Map params = new HashMap<>(); InputStream is = super.parseUpload(request, params); System.out.println(params); String name = params.get("name"); int id = Integer.parseInt(params.get("id")); Category c = new Category(); c.setName(name); c.setId(id); categoryDAO.update(c); File imageFolder = new File(request.getSession().getServletContext().getRealPath("img/category")); File file = new File(imageFolder, c.getId() + ".jpg"); try{if(null != is && 0 != is.available()){try(FileOutputStream fos = new FileOutputStream(file); ){byte[] b = new byte[1024 * 1024]; int length = 0; while(-1 != (length = is.read(b))){fos.write(b, 0, length); }fos.flush(); //通过以下代码，将文件保存为jsp格式BufferedImage img = ImageUtil.change2jpg(file); ImageIO.write(img, "jpg", file); }}} catch (IOException e) {e.printStackTrace(); }return "@admin_category_list"; } @Overridepublic String edit(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了category edit方法"); int id = Integer.parseInt(request.getParameter("id")); Category category = categoryDAO.get(id); request.setAttribute("c", category); return "admin/editCategory.jsp"; } @Overridepublic String list(HttpServletRequest request, HttpServletResponse response, Page page) {List cs = categoryDAO.list(page.getStart(), page.getCount()); int total = categoryDAO.getTotal(); page.setTotal(total); request.setAttribute("thecs", cs); request.setAttribute("page", page); return "admin/listCategory.jsp"; }}

产品控制层

public class ProductServlet extends BaseBackServlet { @Overridepublic String add(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了Product add方法"); Map params = new HashMap<>(); InputStream inputStream = super.parseUpload(request, params); System.out.println(params); int cid = Integer.parseInt(params.get("cid")); Category c = categoryDAO.get(cid); String name = params.get("name"); String subTitle = params.get("subTitle"); float originalPrice = Float.parseFloat(params.get("originalPrice")); float promotePrice = Float.parseFloat(params.get("promotePrice")); int stock = Integer.parseInt(params.get("stock")); Product p = new Product(); p.setCategory(c); p.setName(name); p.setSubTitle(subTitle); p.setOriginalPrice(originalPrice); p.setPromotePrice(promotePrice); p.setStock(stock); p.setCreateDate(new Date()); productDAO.add(p); return "@admin_product_list?cid=" + cid; } @Overridepublic String delete(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了Product delete方法"); int id = Integer.parseInt(request.getParameter("id")); Product p = productDAO.get(id); productDAO.delete(id); return "@admin_product_list?cid=" + p.getCategory().getId(); } @Overridepublic String update(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了Product update方法"); Map params = new HashMap<>(); InputStream inputStream = super.parseUpload(request, params); int cid = Integer.parseInt(params.get("cid")); Category c = categoryDAO.get(cid); int id = Integer.parseInt(params.get("id")); String name = params.get("name"); String subTitle = params.get("subTitle"); float originalPrice = Float.parseFloat(params.get("originalPrice")); float promotePrice = Float.parseFloat(params.get("promotePrice")); int stock = Integer.parseInt(params.get("stock")); Product p = new Product(); p.setId(id); p.setName(name); p.setSubTitle(subTitle); p.setOriginalPrice(originalPrice); p.setPromotePrice(promotePrice); p.setStock(stock); p.setCategory(c); p.setCreateDate(new Date()); productDAO.update(p); return "@admin_product_list?cid=" + p.getCategory().getId(); } @Overridepublic String edit(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了Product edit方法"); int id =Integer.parseInt(request.getParameter("id")); Product p = productDAO.get(id); request.setAttribute("p",p); return "admin/editProduct.jsp"; } public String updatePropertyValue(HttpServletRequest request, HttpServletResponse response, Page page){System.out.println("调用了Product updatePropertyValue方法"); intpvid = Integer.parseInt(request.getParameter("pvid")); String value = https://www.it610.com/article/request.getParameter("value"); PropertyValue pv = propertyValueDAO.get(pvid); pv.setValue(value); propertyValueDAO.update(pv); return "%success"; } public String editPropertyValue(HttpServletRequest request, HttpServletResponse response, Page page){System.out.println("调用了Product editPropertyValue方法"); int id = Integer.parseInt(request.getParameter("id")); Product p = productDAO.get(id); request.setAttribute("p", p); // 初始化属性，将产品对应的属性全部propertyValueDAO.init(p); List pvs = propertyValueDAO.list(p.getId()); request.setAttribute("pvs", pvs); return "admin/editPropertyValue.jsp"; } @Overridepublic String list(HttpServletRequest request, HttpServletResponse response, Page page) {System.out.println("调用了Product list方法"); int cid = Integer.parseInt(request.getParameter("cid")); Category c = categoryDAO.get(cid); List ps = productDAO.list(cid, page.getStart(), page.getCount()); int total = productDAO.getTotal(cid); page.setTotal(total); page.setParam("&cid=" + c.getId()); request.setAttribute("ps", ps); request.setAttribute("c", c); request.setAttribute("page", page); return "admin/listProduct.jsp"; }}

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