[TOC] ## 步驟 1 : 先運行，看到效果，再學習 先將完整的 tmall_ssm 項目（向老師要相關資料），配置運行起來，確認可用之后，再學習做了哪些步驟以達到這樣的效果。 ## 步驟 2 : 模仿和排錯 在確保可運行項目能夠正確無誤地運行之后，再嚴格照著教程的步驟，對代碼模仿一遍。 模仿過程難免代碼有出入，導致無法得到期望的運行結果，此時此刻通過比較**正確答案** ( 可運行項目 ) 和自己的代碼，來定位問題所在。 采用這種方式，**學習有效果，排錯有效率**，可以較為明顯地提升學習速度，跨過學習路上的各個檻。 ## 步驟 3 : 界面效果  ## 步驟 4 : 評價產品頁面 通過點擊評價按鈕，來到路徑`/forereview`，導致ForeController.review()方法被調用 1. ForeController.review() 1.1 獲取參數oid 1.2 根據oid獲取訂單對象o 1.3 為訂單對象填充訂單項 1.4 獲取第一個訂單項對應的產品,因為在評價頁面需要顯示一個產品圖片，那么就使用這第一個產品的圖片了 1.5 獲取這個產品的評價集合 1.6 為產品設置評價數量和銷量 1.7 把產品，訂單和評價集合放在request上 1.8 服務端跳轉到 review.jsp 2. review.jsp 與 register.jsp 相仿，review.jsp也包含了header.jsp, top.jsp, simpleSearch.jsp， footer.jsp 等公共頁面。 中間是產品業務頁面 reviewPage.jsp 3. reviewPage.jsp 在reviewPage.jsp中顯示產品圖片，產品標題，價格，產品銷量，產品評價數量，以及訂單信息等。 同時還顯示出了該產品所有的評價，但是默認是隱藏的 ForeController.review()： ~~~ @RequestMapping("forereview") public String review(Model model, int oid) { Order o = orderService.get(oid); orderItemService.fill(o); Product p = o.getOrderItems().get(0).getProduct(); List<Review> reviews = reviewService.list(p.getId()); productService.setSaleAndReviewNumber(p); model.addAttribute("p", p); model.addAttribute("o", o); model.addAttribute("reviews", reviews); return "fore/review"; } ~~~ review.jsp： ~~~ <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@include file="../include/fore/header.jsp"%> <%@include file="../include/fore/top.jsp"%> <%@include file="../include/fore/simpleSearch.jsp"%> <%@include file="../include/fore/cart/reviewPage.jsp"%> <%@include file="../include/fore/footer.jsp"%> ~~~ reviewPage.jsp： ~~~ <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <div class="reviewDiv"> <div class="reviewProductInfoDiv"> <div class="reviewProductInfoImg"> <img width="400px" height="400px" src="img/productSingle/${p.firstProductImage.id}.jpg"> </div> <div class="reviewProductInfoRightDiv"> <div class="reviewProductInfoRightText">${p.name}</div> <table class="reviewProductInfoTable"> <tr> <td width="75px">價格:</td> <td><span class="reviewProductInfoTablePrice"> ￥<fmt:formatNumber type="number" value="${p.originalPrice}" minFractionDigits="2" /></span> 元</td> </tr> <tr> <td>配送</td> <td>快遞: 0.00</td> </tr> <tr> <td>月銷量:</td> <td><span class="reviewProductInfoTableSellNumber">${p.saleCount}</span> 件</td> </tr> </table> <div class="reviewProductInfoRightBelowDiv"> <span class="reviewProductInfoRightBelowImg"><img1 src="img/site/reviewLight.png"></span> <span class="reviewProductInfoRightBelowText">現在查看的是 您所購買商品的信息 于 ${o.createDate}下單購買了此商品 </span> </div> </div> <div style="clear: both"></div> </div> <div class="reviewStasticsDiv"> <div class="reviewStasticsLeft"> <div class="reviewStasticsLeftTop"></div> <div class="reviewStasticsLeftContent"> 累計評價 <span class="reviewStasticsNumber"> ${p.reviewCount}</span> </div> <div class="reviewStasticsLeftFoot"></div> </div> <div class="reviewStasticsRight"> <div class="reviewStasticsRightEmpty"></div> <div class="reviewStasticsFoot"></div> </div> </div> <c:if test="${param.showonly==true}"> <div class="reviewDivlistReviews"> <c:forEach items="${reviews}" var="r"> <div class="reviewDivlistReviewsEach"> <div class="reviewDate"> ${r.createDate} </div> <div class="reviewContent">${r.content}</div> <div class="reviewUserInfo pull-right">${r.user.anonymousName}<span class="reviewUserInfoAnonymous">(匿名)</span> </div> </div> </c:forEach> </div> </c:if> <c:if test="${param.showonly!=true}"> <div class="makeReviewDiv"> <form method="post" action="foredoreview"> <div class="makeReviewText">其他買家，需要你的建議哦！</div> <table class="makeReviewTable"> <tr> <td class="makeReviewTableFirstTD">評價商品</td> <td><textarea name="content"></textarea></td> </tr> </table> <div class="makeReviewButtonDiv"> <input type="hidden" name="oid" value="${o.id}"> <input type="hidden" name="pid" value="${p.id}"> <button type="submit">提交評價</button> </div> </form> </div> </c:if> </div> ~~~ ForeController： ~~~ package com.dodoke.tmall.controller; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.List; import javax.servlet.http.HttpSession; import org.apache.commons.lang.math.RandomUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.util.HtmlUtils; import com.dodoke.tmall.comparator.ProductAllComparator; import com.dodoke.tmall.comparator.ProductDateComparator; import com.dodoke.tmall.comparator.ProductPriceComparator; import com.dodoke.tmall.comparator.ProductReviewComparator; import com.dodoke.tmall.comparator.ProductSaleCountComparator; import com.dodoke.tmall.pojo.Category; import com.dodoke.tmall.pojo.Order; import com.dodoke.tmall.pojo.OrderItem; import com.dodoke.tmall.pojo.Product; import com.dodoke.tmall.pojo.ProductImage; import com.dodoke.tmall.pojo.PropertyValue; import com.dodoke.tmall.pojo.Review; import com.dodoke.tmall.pojo.User; import com.dodoke.tmall.service.CategoryService; import com.dodoke.tmall.service.OrderItemService; import com.dodoke.tmall.service.OrderService; import com.dodoke.tmall.service.ProductImageService; import com.dodoke.tmall.service.ProductService; import com.dodoke.tmall.service.PropertyValueService; import com.dodoke.tmall.service.ReviewService; import com.dodoke.tmall.service.UserService; import com.github.pagehelper.PageHelper; @Controller @RequestMapping("") public class ForeController { @Autowired CategoryService categoryService; @Autowired ProductService productService; @Autowired UserService userService; @Autowired ProductImageService productImageService; @Autowired PropertyValueService propertyValueService; @Autowired OrderService orderService; @Autowired OrderItemService orderItemService; @Autowired ReviewService reviewService; @RequestMapping("forehome") public String home(Model model) { List<Category> cs = categoryService.list(); productService.fill(cs); productService.fillByRow(cs); model.addAttribute("cs", cs); return "fore/home"; } @RequestMapping("foreregister") public String register(Model model, User user) { String name = user.getName(); // 把賬號里的特殊符號進行轉義 name = HtmlUtils.htmlEscape(name); user.setName(name); boolean exist = userService.isExist(name); if (exist) { String m = "用戶名已經被使用,不能使用"; model.addAttribute("msg", m); model.addAttribute("user", null); return "fore/register"; } userService.add(user); return "redirect:registerSuccessPage"; } @RequestMapping("forelogin") public String login(@RequestParam("name") String name, @RequestParam("password") String password, Model model, HttpSession session) { name = HtmlUtils.htmlEscape(name); User user = userService.get(name, password); if (null == user) { model.addAttribute("msg", "賬號密碼錯誤"); return "fore/login"; } session.setAttribute("user", user); return "redirect:forehome"; } @RequestMapping("forelogout") public String logout(HttpSession session) { session.removeAttribute("user"); return "redirect:forehome"; } @RequestMapping("foreproduct") public String product(int pid, Model model) { Product p = productService.get(pid); // 根據對象p，獲取這個產品對應的單個圖片集合 List<ProductImage> productSingleImages = productImageService.list(p.getId(), ProductImageService.type_single); // 根據對象p，獲取這個產品對應的詳情圖片集合 List<ProductImage> productDetailImages = productImageService.list(p.getId(), ProductImageService.type_detail); p.setProductSingleImages(productSingleImages); p.setProductDetailImages(productDetailImages); // 獲取產品的所有屬性值 List<PropertyValue> pvs = propertyValueService.list(p.getId()); // 獲取產品對應的所有的評價 List<Review> reviews = reviewService.list(p.getId()); // 設置產品的銷量和評價數量 productService.setSaleAndReviewNumber(p); model.addAttribute("reviews", reviews); model.addAttribute("p", p); model.addAttribute("pvs", pvs); return "fore/product"; } @RequestMapping("forecheckLogin") @ResponseBody public String checkLogin(HttpSession session) { User user = (User) session.getAttribute("user"); if (null != user) { return "success"; } return "fail"; } @RequestMapping("foreloginAjax") @ResponseBody public String loginAjax(@RequestParam("name") String name, @RequestParam("password") String password, HttpSession session) { name = HtmlUtils.htmlEscape(name); User user = userService.get(name, password); if (null == user) { return "fail"; } session.setAttribute("user", user); return "success"; } @RequestMapping("forecategory") public String category(int cid, String sort, Model model) { Category c = categoryService.get(cid); productService.fill(c); productService.setSaleAndReviewNumber(c.getProducts()); 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; } } model.addAttribute("c", c); return "fore/category"; } @RequestMapping("foresearch") public String search(String keyword, Model model) { PageHelper.offsetPage(0, 20); List<Product> ps = productService.search(keyword); productService.setSaleAndReviewNumber(ps); model.addAttribute("ps", ps); return "fore/searchResult"; } @RequestMapping("forebuyone") public String buyone(int pid, int num, HttpSession session) { Product p = productService.get(pid); int oiid = 0; User user = (User) session.getAttribute("user"); boolean found = false; List<OrderItem> ois = orderItemService.listByUser(user.getId()); for (OrderItem oi : ois) { if (oi.getProduct().getId().intValue() == p.getId().intValue()) { oi.setNumber(oi.getNumber() + num); orderItemService.update(oi); found = true; oiid = oi.getId(); break; } } if (!found) { OrderItem oi = new OrderItem(); oi.setUserId(user.getId()); oi.setNumber(num); oi.setProductId(pid); orderItemService.add(oi); oiid = oi.getId(); } return "redirect:forebuy?oiid=" + oiid; } @RequestMapping("forebuy") public String buy(Model model, String[] oiid, HttpSession session) { List<OrderItem> ois = new ArrayList<>(); float total = 0; for (String strid : oiid) { int id = Integer.parseInt(strid); OrderItem oi = orderItemService.get(id); total += oi.getProduct().getPromotePrice() * oi.getNumber(); ois.add(oi); } session.setAttribute("ois", ois); model.addAttribute("total", total); return "fore/buy"; } @RequestMapping("foreaddCart") @ResponseBody public String addCart(int pid, int num, Model model, HttpSession session) { Product p = productService.get(pid); User user = (User) session.getAttribute("user"); boolean found = false; List<OrderItem> ois = orderItemService.listByUser(user.getId()); for (OrderItem oi : ois) { if (oi.getProduct().getId().intValue() == p.getId().intValue()) { oi.setNumber(oi.getNumber() + num); orderItemService.update(oi); found = true; break; } } if (!found) { OrderItem oi = new OrderItem(); oi.setUserId(user.getId()); oi.setNumber(num); oi.setProductId(pid); orderItemService.add(oi); } return "success"; } @RequestMapping("forecart") public String cart(Model model, HttpSession session) { User user = (User) session.getAttribute("user"); List<OrderItem> ois = orderItemService.listByUser(user.getId()); model.addAttribute("ois", ois); return "fore/cart"; } @RequestMapping("forechangeOrderItem") @ResponseBody public String changeOrderItem(Model model, HttpSession session, int pid, int number) { User user = (User) session.getAttribute("user"); if (null == user) { return "fail"; } List<OrderItem> ois = orderItemService.listByUser(user.getId()); for (OrderItem oi : ois) { if (oi.getProduct().getId().intValue() == pid) { oi.setNumber(number); orderItemService.update(oi); break; } } return "success"; } @RequestMapping("foredeleteOrderItem") @ResponseBody public String deleteOrderItem(Model model, HttpSession session, int oiid) { User user = (User) session.getAttribute("user"); if (null == user) { return "fail"; } orderItemService.delete(oiid); return "success"; } /** * 創建訂單 * * @param model * @param order * 訂單對象 * @param session * @return 頁面路徑字符串 */ @RequestMapping("forecreateOrder") public String createOrder(Model model, Order order, HttpSession session) { User user = (User) session.getAttribute("user"); // 生成訂單號：年月日時分秒毫秒+隨機數 String orderCode = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date()) + RandomUtils.nextInt(10000); order.setOrderCode(orderCode); order.setCreateDate(new Date()); order.setUserId(user.getId()); order.setStatus(OrderService.waitPay); List<OrderItem> ois = (List<OrderItem>) session.getAttribute("ois"); float total = orderService.add(order, ois); return "redirect:forealipay?oid=" + order.getId() + "&total=" + total; } @RequestMapping("forepayed") public String payed(int oid, float total, Model model) { Order order = orderService.get(oid); order.setStatus(OrderService.waitDelivery); order.setPayDate(new Date()); orderService.update(order); model.addAttribute("o", order); return "fore/payed"; } @RequestMapping("forebought") public String bought(Model model, HttpSession session) { User user = (User) session.getAttribute("user"); List<Order> os = orderService.list(user.getId(), OrderService.delete); orderItemService.fill(os); model.addAttribute("os", os); return "fore/bought"; } @RequestMapping("foreconfirmPay") public String confirmPay(Model model, int oid) { Order o = orderService.get(oid); orderItemService.fill(o); model.addAttribute("o", o); return "fore/confirmPay"; } @RequestMapping("foreorderConfirmed") public String orderConfirmed(Model model, int oid) { Order o = orderService.get(oid); o.setStatus(OrderService.waitReview); o.setConfirmDate(new Date()); orderService.update(o); return "fore/orderConfirmed"; } @RequestMapping("foredeleteOrder") @ResponseBody public String deleteOrder(Model model, int oid) { Order o = orderService.get(oid); o.setStatus(OrderService.delete); orderService.update(o); return "success"; } @RequestMapping("forereview") public String review(Model model, int oid) { Order o = orderService.get(oid); orderItemService.fill(o); Product p = o.getOrderItems().get(0).getProduct(); List<Review> reviews = reviewService.list(p.getId()); productService.setSaleAndReviewNumber(p); model.addAttribute("p", p); model.addAttribute("o", o); model.addAttribute("reviews", reviews); return "fore/review"; } } ~~~  ## 步驟 5 : 提交評價 在評價產品頁面點擊提交評價，就把數據提交到了`/foredoreview`路徑，導致`ForeController.doreview`方法被調用 1. `ForeController.doreview()` 1.1 獲取參數oid 1.2 根據oid獲取訂單對象o 1.3 修改訂單對象狀態 1.4 更新訂單對象到數據庫 1.5 獲取參數pid 1.6 根據pid獲取產品對象 1.7 獲取參數content (評價信息) 1.8 對評價信息進行轉義，道理同注冊`ForeController.register()` 1.9 從session中獲取當前用戶 1.10 創建評價對象review 1.11 為評價對象review設置 評價信息，產品，時間，用戶 1.12 增加到數據庫 1.13.客戶端跳轉到`/forereview`： 評價產品頁面，并帶上參數`showonly=true` 2. reviewPage.jsp 在reviewPage.jsp中，當參數showonly==true，那么就顯示當前產品的所有評價信息  ~~~ @RequestMapping("foredoreview") public String doreview(Model model, HttpSession session, @RequestParam("oid") int oid, @RequestParam("pid") int pid, String content) { Order o = orderService.get(oid); o.setStatus(OrderService.finish); orderService.update(o); Product p = productService.get(pid); content = HtmlUtils.htmlEscape(content); User user = (User) session.getAttribute("user"); Review review = new Review(); review.setContent(content); review.setProductId(pid); review.setCreateDate(new Date()); review.setUserId(user.getId()); reviewService.add(review); return "redirect:forereview?oid=" + oid + "&showonly=true"; } ~~~ reviewPage.jsp： ~~~ <c:if test="${param.showonly==true}"> <div class="reviewDivlistReviews"> <c:forEach items="${reviews}" var="r"> <div class="reviewDivlistReviewsEach"> <div class="reviewDate"> ${r.createDate} </div> <div class="reviewContent">${r.content}</div> <div class="reviewUserInfo pull-right">${r.user.anonymousName}<span class="reviewUserInfoAnonymous">(匿名)</span> </div> </div> </c:forEach> </div> </c:if> ~~~ ForeController.java： ~~~ package com.dodoke.tmall.controller; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.List; import javax.servlet.http.HttpSession; import org.apache.commons.lang.math.RandomUtils; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.util.HtmlUtils; import com.dodoke.tmall.comparator.ProductAllComparator; import com.dodoke.tmall.comparator.ProductDateComparator; import com.dodoke.tmall.comparator.ProductPriceComparator; import com.dodoke.tmall.comparator.ProductReviewComparator; import com.dodoke.tmall.comparator.ProductSaleCountComparator; import com.dodoke.tmall.pojo.Category; import com.dodoke.tmall.pojo.Order; import com.dodoke.tmall.pojo.OrderItem; import com.dodoke.tmall.pojo.Product; import com.dodoke.tmall.pojo.ProductImage; import com.dodoke.tmall.pojo.PropertyValue; import com.dodoke.tmall.pojo.Review; import com.dodoke.tmall.pojo.User; import com.dodoke.tmall.service.CategoryService; import com.dodoke.tmall.service.OrderItemService; import com.dodoke.tmall.service.OrderService; import com.dodoke.tmall.service.ProductImageService; import com.dodoke.tmall.service.ProductService; import com.dodoke.tmall.service.PropertyValueService; import com.dodoke.tmall.service.ReviewService; import com.dodoke.tmall.service.UserService; import com.github.pagehelper.PageHelper; @Controller @RequestMapping("") public class ForeController { @Autowired CategoryService categoryService; @Autowired ProductService productService; @Autowired UserService userService; @Autowired ProductImageService productImageService; @Autowired PropertyValueService propertyValueService; @Autowired OrderService orderService; @Autowired OrderItemService orderItemService; @Autowired ReviewService reviewService; @RequestMapping("forehome") public String home(Model model) { List<Category> cs = categoryService.list(); productService.fill(cs); productService.fillByRow(cs); model.addAttribute("cs", cs); return "fore/home"; } @RequestMapping("foreregister") public String register(Model model, User user) { String name = user.getName(); // 把賬號里的特殊符號進行轉義 // 在惡意注冊的時候，會使用諸如 <script>alert('papapa')</script> // 這樣的名稱，會導致網頁打開就彈出一個對話框。 // 那么在轉義之后，就沒有這個問題了。 name = HtmlUtils.htmlEscape(name); user.setName(name); boolean exist = userService.isExist(name); if (exist) { String m = "用戶名已經被使用,不能使用"; model.addAttribute("msg", m); model.addAttribute("user", null); return "fore/register"; } userService.add(user); return "redirect:registerSuccessPage"; } @RequestMapping("forelogin") public String login(@RequestParam("name") String name, @RequestParam("password") String password, Model model, HttpSession session) { name = HtmlUtils.htmlEscape(name); User user = userService.get(name, password); if (null == user) { model.addAttribute("msg", "賬號密碼錯誤"); return "fore/login"; } session.setAttribute("user", user); return "redirect:forehome"; } @RequestMapping("forelogout") public String logout(HttpSession session) { session.removeAttribute("user"); return "redirect:forehome"; } @RequestMapping("foreproduct") public String product(int pid, Model model) { Product p = productService.get(pid); // 根據對象p，獲取這個產品對應的單個圖片集合 List<ProductImage> productSingleImages = productImageService.list(p.getId(), ProductImageService.type_single); // 根據對象p，獲取這個產品對應的詳情圖片集合 List<ProductImage> productDetailImages = productImageService.list(p.getId(), ProductImageService.type_detail); p.setProductSingleImages(productSingleImages); p.setProductDetailImages(productDetailImages); // 獲取產品的所有屬性值 List<PropertyValue> pvs = propertyValueService.list(p.getId()); // 獲取產品對應的所有的評價 List<Review> reviews = reviewService.list(p.getId()); // 設置產品的銷量和評價數量 productService.setSaleAndReviewNumber(p); model.addAttribute("reviews", reviews); model.addAttribute("p", p); model.addAttribute("pvs", pvs); return "fore/product"; } @RequestMapping("forecheckLogin") @ResponseBody public String checkLogin(HttpSession session) { User user = (User) session.getAttribute("user"); if (null != user) { return "success"; } return "fail"; } @RequestMapping("foreloginAjax") @ResponseBody public String loginAjax(@RequestParam("name") String name, @RequestParam("password") String password, HttpSession session) { name = HtmlUtils.htmlEscape(name); User user = userService.get(name, password); if (null == user) { return "fail"; } session.setAttribute("user", user); return "success"; } @RequestMapping("forecategory") public String category(int cid, String sort, Model model) { Category c = categoryService.get(cid); productService.fill(c); productService.setSaleAndReviewNumber(c.getProducts()); 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; } } model.addAttribute("c", c); return "fore/category"; } @RequestMapping("foresearch") public String search(String keyword, Model model) { PageHelper.offsetPage(0, 20); List<Product> ps = productService.search(keyword); productService.setSaleAndReviewNumber(ps); model.addAttribute("ps", ps); return "fore/searchResult"; } @RequestMapping("forebuyone") public String buyone(int pid, int num, HttpSession session) { Product p = productService.get(pid); int oiid = 0; User user = (User) session.getAttribute("user"); boolean found = false; List<OrderItem> ois = orderItemService.listByUser(user.getId()); for (OrderItem oi : ois) { if (oi.getProduct().getId().intValue() == p.getId().intValue()) { oi.setNumber(oi.getNumber() + num); orderItemService.update(oi); found = true; oiid = oi.getId(); break; } } if (!found) { OrderItem oi = new OrderItem(); oi.setUserId(user.getId()); oi.setNumber(num); oi.setProductId(pid); orderItemService.add(oi); oiid = oi.getId(); } return "redirect:forebuy?oiid=" + oiid; } @RequestMapping("forebuy") public String buy(Model model, String[] oiid, HttpSession session) { List<OrderItem> ois = new ArrayList<>(); float total = 0; for (String strid : oiid) { int id = Integer.parseInt(strid); OrderItem oi = orderItemService.get(id); total += oi.getProduct().getPromotePrice() * oi.getNumber(); ois.add(oi); } session.setAttribute("ois", ois); model.addAttribute("total", total); return "fore/buy"; } @RequestMapping("foreaddCart") @ResponseBody public String addCart(int pid, int num, Model model, HttpSession session) { Product p = productService.get(pid); User user = (User) session.getAttribute("user"); boolean found = false; List<OrderItem> ois = orderItemService.listByUser(user.getId()); for (OrderItem oi : ois) { if (oi.getProduct().getId().intValue() == p.getId().intValue()) { oi.setNumber(oi.getNumber() + num); orderItemService.update(oi); found = true; break; } } if (!found) { OrderItem oi = new OrderItem(); oi.setUserId(user.getId()); oi.setNumber(num); oi.setProductId(pid); orderItemService.add(oi); } return "success"; } @RequestMapping("forecart") public String cart(Model model, HttpSession session) { User user = (User) session.getAttribute("user"); List<OrderItem> ois = orderItemService.listByUser(user.getId()); model.addAttribute("ois", ois); return "fore/cart"; } @RequestMapping("forechangeOrderItem") @ResponseBody public String changeOrderItem(Model model, HttpSession session, int pid, int number) { User user = (User) session.getAttribute("user"); if (null == user) { return "fail"; } List<OrderItem> ois = orderItemService.listByUser(user.getId()); for (OrderItem oi : ois) { if (oi.getProduct().getId().intValue() == pid) { oi.setNumber(number); orderItemService.update(oi); break; } } return "success"; } @RequestMapping("foredeleteOrderItem") @ResponseBody public String deleteOrderItem(Model model, HttpSession session, int oiid) { User user = (User) session.getAttribute("user"); if (null == user) { return "fail"; } orderItemService.delete(oiid); return "success"; } /** * 創建訂單 * * @param model * @param order * 訂單對象 * @param session * @return 頁面路徑字符串 */ @RequestMapping("forecreateOrder") public String createOrder(Model model, Order order, HttpSession session) { User user = (User) session.getAttribute("user"); // 生成訂單號：年月日時分秒毫秒+隨機數 String orderCode = new SimpleDateFormat("yyyyMMddHHmmssSSS").format(new Date()) + RandomUtils.nextInt(10000); order.setOrderCode(orderCode); order.setCreateDate(new Date()); order.setUserId(user.getId()); order.setStatus(OrderService.waitPay); List<OrderItem> ois = (List<OrderItem>) session.getAttribute("ois"); float total = orderService.add(order, ois); return "redirect:forealipay?oid=" + order.getId() + "&total=" + total; } @RequestMapping("forepayed") public String payed(int oid, float total, Model model) { Order order = orderService.get(oid); order.setStatus(OrderService.waitDelivery); order.setPayDate(new Date()); orderService.update(order); model.addAttribute("o", order); return "fore/payed"; } @RequestMapping("forebought") public String bought(Model model, HttpSession session) { User user = (User) session.getAttribute("user"); List<Order> os = orderService.list(user.getId(), OrderService.delete); orderItemService.fill(os); model.addAttribute("os", os); return "fore/bought"; } @RequestMapping("foreconfirmPay") public String confirmPay(Model model, int oid) { Order o = orderService.get(oid); orderItemService.fill(o); model.addAttribute("o", o); return "fore/confirmPay"; } @RequestMapping("foreorderConfirmed") public String orderConfirmed(Model model, int oid) { Order o = orderService.get(oid); o.setStatus(OrderService.waitReview); o.setConfirmDate(new Date()); orderService.update(o); return "fore/orderConfirmed"; } @RequestMapping("foredeleteOrder") @ResponseBody public String deleteOrder(Model model, int oid) { Order o = orderService.get(oid); o.setStatus(OrderService.delete); orderService.update(o); return "success"; } @RequestMapping("forereview") public String review(Model model, int oid) { Order o = orderService.get(oid); orderItemService.fill(o); Product p = o.getOrderItems().get(0).getProduct(); List<Review> reviews = reviewService.list(p.getId()); productService.setSaleAndReviewNumber(p); model.addAttribute("p", p); model.addAttribute("o", o); model.addAttribute("reviews", reviews); return "fore/review"; } @RequestMapping("foredoreview") public String doreview(Model model, HttpSession session, @RequestParam("oid") int oid, @RequestParam("pid") int pid, String content) { Order o = orderService.get(oid); o.setStatus(OrderService.finish); orderService.update(o); Product p = productService.get(pid); content = HtmlUtils.htmlEscape(content); User user = (User) session.getAttribute("user"); Review review = new Review(); review.setContent(content); review.setProductId(pid); review.setCreateDate(new Date()); review.setUserId(user.getId()); reviewService.add(review); return "redirect:forereview?oid=" + oid + "&showonly=true"; } } ~~~ > 補充說明：日期格式化，可以在getter方法中，寫格式化操作，也可以使用fmt標簽格式化，學員自己完成。