Java项目:仿天猫网上商城项目(java+jsp+servlet+mysql+ajax)

package servlet; import bean.*; import comparator.*; import dao.CategoryDAO; import dao.OrderDAO; import dao.ProductDAO; import dao.ProductImageDAO; import util.Page; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.InputStream; import java.io.UnsupportedEncodingException; import java.text.SimpleDateFormat; import java.util.*; public class ForeServlet extends BaseForeServlet { /** * 显示主页 * * @param request * @param response * @param page * @return */ public String home(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了 ForeServlet home方法"); List<Category> cs = new CategoryDAO().list(); new ProductDAO().fill(cs); new ProductDAO().fillByRow(cs); request.setAttribute("cs", cs); return "home.jsp"; } /** * 注册 * * @param request * @param response * @param page * @return */ public String register(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了 ForeServlet register方法"); Map<String, String> params = new HashMap<>(); InputStream inputStream = super.parseUpload(request, params); System.out.println(params); String name = params.get("name"); String password = params.get("password"); System.out.println(name); // 判断用户名是否存在 boolean exist = userDAO.isExists(name); if (exist) { request.setAttribute("msg", "用户名已经被使用"); return "register.jsp"; } User user = new User(); user.setName(name); user.setPassword(password); System.out.println(user.getName()); System.out.println(user.getPassword()); userDAO.add(user); return "@registerSuccess.jsp"; } /** * 登录 * * @param request * @param response * @param page * @return */ public String login(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了 ForeServlet login方法"); Map<String, String> params = new HashMap<>(); InputStream inputStream = super.parseUpload(request, params); System.out.println(params); String name = params.get("name"); String password = params.get("password"); // 登录 User user = userDAO.get(name, password); if (null == user) { request.setAttribute("msg", "账号密码错误"); return "login.jsp"; } // 将账号密码储存在Session中 request.getSession().setAttribute("user", user); return "@forehome"; } /** * 登出 * * @param request * @param response * @param page * @return */ public String logout(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了 ForeServlet logout方法"); request.getSession().removeAttribute("user"); return "@forehome"; } /** * 检查用户是否登录 * * @param request * @param response * @param page * @return */ public String checkLogin(HttpServletRequest request, HttpServletResponse response, Page page) { User user = (User) request.getSession().getAttribute("user"); if (user != null) { return "%success"; } return "%fail"; } /** * 模态登录框通过 Ajax 方法登录 * * @param request * @param response * @param page * @return */ public String loginAjax(HttpServletRequest request, HttpServletResponse response, Page page) { String name = request.getParameter("name"); String password = request.getParameter("password"); User user = userDAO.get(name, password); if (user == null) return "%fail"; request.getSession().setAttribute("user", user); return "%success"; } /** * 显示产品页 * * @param request * @param response * @param page * @return */ public String product(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了 ForeServlet product方法"); int pid = Integer.parseInt(request.getParameter("pid")); Product p = productDAO.get(pid); // 获取产品的single图片和detail图片 List<ProductImage> productSingleImages = productImageDAO.list(p, ProductImageDAO.type_single); List<ProductImage> productDetailImages = productImageDAO.list(p, ProductImageDAO.type_detail); p.setProductSingleImages(productSingleImages); p.setProductDetailImages(productDetailImages); //p.setFirstProductImage(productSingleImages.get(0)); // 获取产品属性信息 List<PropertyValue> pvs = propertyValueDAO.list(p.getId()); // 获取产品评价信息 List<Review> reviews = reviewDAO.list(p.getId()); // 设置产品销量数和评价数 productDAO.setSaleAndReviewNumber(p); request.setAttribute("p", p); request.setAttribute("pvs", pvs); request.setAttribute("reviews", reviews); return "product.jsp"; } /** * 分类页面 * * @return */ public String category(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了ForeServlet category方法"); int cid = Integer.parseInt(request.getParameter("cid")); // 获取分类对象并为填充产品对象、销量、评价 Category c = new CategoryDAO().get(cid); new ProductDAO().fill(c); new ProductDAO().setSaleAndReviewNumber(c.getProducts()); // 根据获取的排序方式进行排序 String sort = request.getParameter("sort"); if (null != sort) { switch (sort) { case "review": Collections.sort(c.getProducts(), new ProductReviewComparator()); break; case "date": Collections.sort(c.getProducts(), new ProductDateComparator()); break; case "saleCount": Collections.sort(c.getProducts(), new ProductSaleCountComparator()); break; case "price": Collections.sort(c.getProducts(), new ProductPriceComparator()); break; case "all": Collections.sort(c.getProducts(), new ProductAllComparator()); break; } } // 排序完成后，将分类对象添加到域对象 request 中 request.setAttribute("c", c); return "category.jsp"; } /** * 搜索功能 * * @param request * @param response * @param page * @return */ public String search(HttpServletRequest request, HttpServletResponse response, Page page) { System.out.println("调用了ForeServlet search方法"); String keyword = request.getParameter("keyword"); List<Product> ps = null; // 加入异常，防止崩溃 try { ps = productDAO.search(keyword, 0, 50); } catch (Exception e) { e.printStackTrace(); } // 设置产品的销量和评论 productDAO.setSaleAndReviewNumber(ps); request.setAttribute("ps", ps); return "sear