1.1 概要：

蛋糕商城系统（商品销售平台）的功能，系统分为两个角色，管理员，用户

1.1.1 管理员功能

登录，用户管理，商品类目管理，商品管理，节日管理，订单管理，发货

1.1.2 用户功能

注册，登录，修改密码，输入收货信息，搜索，查看热销商品，查看新品
加入购物车，提交订，收货

2.1 部分功能展示

2.2 代码设计

商品推荐

@WebServlet(name = "admin_goods_list",urlPatterns = "/admin/goods_list")
public class AdminGoodsListServlet extends HttpServlet {
    private GoodsService gService = new GoodsService();
    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        int type = 0;//推荐类型
        if(request.getParameter("type") != null) {
            type=Integer.parseInt(request.getParameter("type") ) ;
        }
        int pageNumber = 1;
        if(request.getParameter("pageNumber") != null) {
            try {
                pageNumber=Integer.parseInt(request.getParameter("pageNumber") ) ;
            }
            catch (Exception e)
            {
 
            }
 
        }
        if(pageNumber<=0)
            pageNumber=1;
        Page p = gService.getGoodsRecommendPage(type, pageNumber);
        if(p.getTotalPage()==0)
        {
            p.setTotalPage(1);
            p.setPageNumber(1);
        }
        else {
            if(pageNumber>=p.getTotalPage()+1)
            {
                p = gService.getGoodsRecommendPage(type, pageNumber);
            }
        }
        request.setAttribute("p", p);
        request.setAttribute("type", type);
        request.getRequestDispatcher("/admin/goods_list.jsp").forward(request, response);
    }

商品添加

@WebServlet("/admin/goods_add")
public class AdminGoodsAddServlet extends HttpServlet {
	
 
	private GoodsService gService = new GoodsService();
	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		DiskFileItemFactory factory=new DiskFileItemFactory();
		ServletFileUpload upload = new ServletFileUpload(factory);
		try {
			List<FileItem> list = upload.parseRequest(request);
			Goods g = new Goods();
			for(FileItem item:list) {
				if(item.isFormField()) {
					switch(item.getFieldName()) {
					case "name":
						g.setName(item.getString("utf-8"));
						break;
					case "price":
						g.setPrice(Integer.parseInt(item.getString("utf-8")));
						break;
					case "intro":
						g.setIntro(item.getString("utf-8"));
						break;
					case "stock":
						g.setStock(Integer.parseInt(item.getString("utf-8")));
						break;
					case "typeid":
						g.setTypeid(Integer.parseInt(item.getString("utf-8")));
						break;
					}
				}else {
					if(item.getInputStream().available()<=0)continue;
					String fileName = item.getName();
					fileName = fileName.substring(fileName.lastIndexOf("."));
					fileName = "/"+new Date().getTime()+fileName;
					String path = this.getServletContext().getRealPath("/picture")+fileName;
					System.out.println(path);
					InputStream in = item.getInputStream();
					FileOutputStream out = new FileOutputStream(path);
					byte[] buffer = new byte[1024];
					int len=0;
					while( (len=in.read(buffer))>0 ) {
						out.write(buffer);
					}
					in.close();
					out.close();
					item.delete();
					switch(item.getFieldName()) {
					case "cover":
						g.setCover("/picture"+fileName);
						break;
					case "image1":
						g.setImage1("/picture"+fileName);
						break;
					case "image2":
						g.setImage2("/picture"+fileName);
						break;
					}
				}
			}
			gService.insert(g);
			request.getRequestDispatcher("/admin/goods_list").forward(request, response);
		} catch (FileUploadException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
 
	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doGet(request, response);
	}
 
}

3.1 代码获取

链接：https://www.alipan.com/s/rkXfhP8suVn 

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