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项目编号:BS-SC-001
本项目基于JSP+SERVLET+Durid连接池进行开发实现,数据库采用MYSQL数据库,开发工具为IDEA或ECLIPSE,前端用采用BootStrap开发实现。系统采用三层架构设计,MVC设计模式。系统功能完整,页面简洁大方,维护方便,适合做毕业设计使用。
具体系统功能展示如下:
前台页面功能:
编辑
分类显示
编辑
餐品详情
编辑
添加购物车
编辑
个人订单管理
编辑
个人资料修改
编辑
系统留言
编辑
最近浏览功能
编辑
后台管理功能:
管理员登陆: admin / admin
编辑
用户管理
编辑
分类管理
编辑
餐品管理
编辑
订单管理
编辑
留言管理
编辑
新闻管理
编辑
本系统是一款优秀的毕业设计系统,完美的实现了基于餐饮业务的网上订餐流程,功能强大,运行稳定,结构清晰,便于修改,适合做毕业设计使用。
部分核心代码:
package cn.jbit.easybuy.web; import java.io.IOException; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import cn.jbit.easybuy.biz.FacilityService; import cn.jbit.easybuy.biz.OrderService; import cn.jbit.easybuy.biz.ProductService; import cn.jbit.easybuy.biz.impl.FacilityServiceImpl; import cn.jbit.easybuy.biz.impl.OrderServiceImpl; import cn.jbit.easybuy.biz.impl.ProductServiceImpl; import cn.jbit.easybuy.entity.News; import cn.jbit.easybuy.entity.Pager; import cn.jbit.easybuy.entity.Product; import cn.jbit.easybuy.entity.ProductCategory; import cn.jbit.easybuy.entity.ShoppingCart; import cn.jbit.easybuy.entity.User; import cn.jbit.easybuy.util.ActionResult; import cn.jbit.easybuy.util.Validator; public class CartServlet extends HttpServlet { protected Map<String, ActionResult> viewMapping = new HashMap<String, ActionResult>(); private ProductService productService; private FacilityService facilityService; private OrderService orderService; public void init() throws ServletException { productService = new ProductServiceImpl(); facilityService = new FacilityServiceImpl(); orderService = new OrderServiceImpl(); } protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setCharacterEncoding("utf-8"); createViewMapping(); String actionIndicator = req.getParameter("action"); String result = ""; if (actionIndicator == null) actionIndicator = "list"; if ("list".endsWith(actionIndicator)) { result = list(req); } else if ("add".endsWith(actionIndicator)) { result = add(req); } else if ("mod".endsWith(actionIndicator)) { result = mod(req); } else if ("remove".endsWith(actionIndicator)) { result = remove(req); } else if ("pay".endsWith(actionIndicator)) { result = pay(req); } toView(req, resp, result); } private String pay(HttpServletRequest request) { ShoppingCart cart = getCartFromSession(request); User user = getUserFromSession(request); if(user==null) return "login"; orderService.payShoppingCart(cart, user); removeCartFromSession(request); return "paySuccess"; } private void removeCartFromSession(HttpServletRequest request) { request.getSession().removeAttribute("cart"); } private User getUserFromSession(HttpServletRequest request) { HttpSession session = request.getSession(); return (User) session.getAttribute("loginUser"); } private String add(HttpServletRequest request) { String id = request.getParameter("entityId"); String quantityStr = request.getParameter("quantity"); long quantity = 1; if (!Validator.isEmpty(quantityStr)) quantity = Long.parseLong(quantityStr); Product product = productService.findById(id); ShoppingCart cart = getCartFromSession(request); cart.addItem(product, quantity); return "addSuccess"; } private String mod(HttpServletRequest request) { String id = request.getParameter("entityId"); String quantityStr = request.getParameter("quantity"); long quantity = 1; if (!Validator.isEmpty(quantityStr)) quantity = Long.parseLong(quantityStr); String indexStr = request.getParameter("index"); ShoppingCart cart = getCartFromSession(request); cart.modifyQuantity(Integer.parseInt(indexStr), quantity); return "modSuccess"; } private String remove(HttpServletRequest request) { String id = request.getParameter("entityId"); String quantityStr = request.getParameter("quantity"); long quantity = 1; if (!Validator.isEmpty(quantityStr)) quantity = Long.parseLong(quantityStr); String indexStr = request.getParameter("index"); ShoppingCart cart = getCartFromSession(request); cart.getItems().remove(Integer.parseInt(indexStr)); return "removeSuccess"; } private ShoppingCart getCartFromSession(HttpServletRequest request) { HttpSession session = request.getSession(); ShoppingCart cart = (ShoppingCart) session.getAttribute("cart"); if (cart == null) { cart = new ShoppingCart(); session.setAttribute("cart", cart); } //取出当前用户的订单列表 return cart; } private String list(HttpServletRequest request) { getCartFromSession(request); return "listSuccess"; } private void prepareCategories(HttpServletRequest request) { List<ProductCategory> categories = productService .getProductCategories(null); request.setAttribute("categories", categories); } private void prepareNews(HttpServletRequest request) { List<News> allNews = facilityService.getAllNews(new Pager(10, 1)); request.setAttribute("allNews", allNews); } protected void createViewMapping() { this.addMapping("listSuccess", "shopping.jsp"); this.addMapping("paySuccess", "shopping-result.jsp"); this.addMapping("addSuccess", "Cart", true); this.addMapping("removeSuccess", "Cart", true); this.addMapping("modSuccess", "Cart", true); this.addMapping("login", "login.jsp"); } private void toView(HttpServletRequest req, HttpServletResponse resp, String result) throws IOException, ServletException { ActionResult dest = this.viewMapping.get(result); if (dest.isRedirect()) { resp.sendRedirect(dest.getViewName()); } else { req.getRequestDispatcher(dest.getViewName()).forward(req, resp); } } protected void addMapping(String viewName, String url) { this.viewMapping.put(viewName, new ActionResult(url)); } protected void addMapping(String viewName, String url, boolean isDirect) { this.viewMapping.put(viewName, new ActionResult(url, isDirect)); } }
package cn.jbit.easybuy.web; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import cn.jbit.easybuy.biz.ProductService; import cn.jbit.easybuy.biz.impl.ProductServiceImpl; import cn.jbit.easybuy.entity.ProductCategory; import cn.jbit.easybuy.util.ActionResult; import cn.jbit.easybuy.util.Validator; public class CategoryServlet extends HttpServlet { private ProductService productService; public void init() throws ServletException { productService = new ProductServiceImpl(); } protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setCharacterEncoding("utf-8"); String actionIndicator = req.getParameter("action"); ActionResult result = new ActionResult("error"); Validator validator = new Validator(Validator.toSingleParameters(req)); if (actionIndicator == null) actionIndicator = "list"; if ("read".endsWith(actionIndicator)) { result = read(req, validator); } else if ("list".endsWith(actionIndicator)) { result = list(req, validator); } else if ("create".endsWith(actionIndicator)) { result = create(req, validator); } else if ("delete".endsWith(actionIndicator)) { result = delete(req, validator); } else if ("save".endsWith(actionIndicator)) { boolean isEdit = true; String editIndicator = req.getParameter("entityId"); if (Validator.isEmpty(editIndicator)) isEdit = false; result = save(req, validator, isEdit); } if (!validator.hasErrors() && result.isRedirect()) { resp.sendRedirect(result.getViewName()); } else { req.setAttribute("errors", validator.getErrors()); req.getRequestDispatcher(result.getViewName()).forward(req, resp); } } public ActionResult read(HttpServletRequest request, Validator validator) { ProductCategory category = productService.findCategoryById(request .getParameter("entityId")); pupulateRequest(request, category); List<ProductCategory> categories = productService.getRootCategories(); request.setAttribute("categories", categories); return new ActionResult("productClass-modify.jsp"); } public ActionResult save(HttpServletRequest request, Validator validator, boolean isEdit) { String entityId = request.getParameter("entityId"); checkInputErrors(request, validator); saveToDatabase(request, validator, isEdit); return new ActionResult("Category", true); } public ActionResult create(HttpServletRequest request, Validator validator) { List<ProductCategory> categories = productService.getRootCategories(); request.setAttribute("categories", categories); request.setAttribute("parentId", 0); return new ActionResult("productClass-modify.jsp"); } public ActionResult delete(HttpServletRequest request, Validator validator) { productService.deleteCategory(request.getParameter("entityId")); return new ActionResult("Category", true); } public ActionResult list(HttpServletRequest request, Validator validator) { List<ProductCategory> categories = productService .getProductCategories(null); request.setAttribute("categories", categories); return new ActionResult("productClass.jsp"); } private void saveToDatabase(HttpServletRequest request, Validator validator, boolean isEdit) { if (!validator.hasErrors()) { ProductCategory productCategory; if (!isEdit) { productCategory = new ProductCategory(); populateEntity(request, productCategory); productCategory.setParentId(Long.parseLong(request .getParameter("parentId"))); productService.saveCategory(productCategory); } else { productCategory = productService.findCategoryById(request .getParameter("entityId")); Long parentId = Long .parseLong(request.getParameter("parentId")); populateEntity(request, productCategory); if (parentId == 0) { if (productCategory.getId().equals( productCategory.getParentId())) { // 说明是一级分类,父分类不能修改,只能改名字 productService.updateCategoryName(productCategory); } else { // 二级分类修改为一级分类了,需要额外更新: // Product原先属于该二级分类的,全部更新一级为它,二级为空 productCategory.setParentId(productCategory.getId()); productService.updateCategory(productCategory, "Level2To1"); } } else { if (!parentId.equals(productCategory.getParentId())) { // 二级分类修改了父分类,需要额外更新: // Product原先属于该二级分类的,全部更新一级为新的父分类 productCategory.setParentId(parentId); productService.updateCategory(productCategory, "ModifyParent"); } else { // 二级分类修改了名字 productService.updateCategoryName(productCategory); } } } } } private void pupulateRequest(HttpServletRequest request, ProductCategory productCategory) { request .setAttribute("entityId", Long .toString(productCategory.getId())); request.setAttribute("name", productCategory.getName()); request.setAttribute("parentId", (productCategory.getParentId() .equals(productCategory.getId())) ? 0 : productCategory .getParentId()); } private void checkInputErrors(HttpServletRequest request, Validator validator) { validator.checkRequiredError(new String[] { "name" }); } private void populateEntity(HttpServletRequest request, ProductCategory productCategory) { productCategory.setName(request.getParameter("name")); } }
package cn.jbit.easybuy.web; import java.io.IOException; import java.util.Date; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import cn.jbit.easybuy.biz.FacilityService; import cn.jbit.easybuy.biz.ProductService; import cn.jbit.easybuy.biz.impl.FacilityServiceImpl; import cn.jbit.easybuy.biz.impl.ProductServiceImpl; import cn.jbit.easybuy.entity.Comment; import cn.jbit.easybuy.entity.Pager; import cn.jbit.easybuy.entity.ProductCategory; import cn.jbit.easybuy.util.ActionResult; import cn.jbit.easybuy.util.Validator; public class CommentServlet extends HttpServlet { private FacilityService facilityService; private ProductService productService; public void init() throws ServletException { this.facilityService = new FacilityServiceImpl(); this.productService = new ProductServiceImpl(); } protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { doPost(req, resp); } protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.setCharacterEncoding("utf-8"); String actionIndicator = req.getParameter("action"); ActionResult result = new ActionResult("error"); Validator validator = new Validator(Validator.toSingleParameters(req)); if (actionIndicator == null) actionIndicator = "list"; if ("read".endsWith(actionIndicator)) { result = read(req, validator); } else if ("list".endsWith(actionIndicator)) { result = list(req, validator); } else if ("delete".endsWith(actionIndicator)) { result = delete(req, validator); } else if ("save".endsWith(actionIndicator)) { boolean isEdit = true; String editIndicator = req.getParameter("entityId"); if (Validator.isEmpty(editIndicator)) isEdit = false; result = save(req, validator, isEdit); } if (!validator.hasErrors() && result.isRedirect()) { resp.sendRedirect(result.getViewName()); } else { req.setAttribute("errors", validator.getErrors()); req.getRequestDispatcher(result.getViewName()).forward(req, resp); } } public ActionResult read(HttpServletRequest request, Validator validator) { Comment comment = facilityService.findCommentById(request .getParameter("entityId")); pupulateRequest(request, comment); return new ActionResult("guestbook-modify.jsp"); } public ActionResult save(HttpServletRequest request, Validator validator, boolean isEdit) { checkInputErrors(request, validator); saveToDatabase(request, validator, isEdit); return new ActionResult("GuestBook", true); } public ActionResult delete(HttpServletRequest request, Validator validator) { facilityService.deleteComment(request.getParameter("entityId")); return new ActionResult("GuestBook", true); } public ActionResult list(HttpServletRequest request, Validator validator) { String page = request.getParameter("page"); int pageNo = 1; if (!Validator.isEmpty(page)) pageNo = Integer.parseInt(page); long rowCount = facilityService.getCommentRowCount(); Pager pager = new Pager(rowCount, pageNo); List<Comment> comments = facilityService.getComments(pager); List<ProductCategory> categories = productService .getProductCategories(null); request.setAttribute("categories", categories); request.setAttribute("comments", comments); request.setAttribute("pager", pager); request.setAttribute("pageNo", pageNo); return new ActionResult("guestbook.jsp"); } private void pupulateRequest(HttpServletRequest request, Comment comment) { request.setAttribute("entityId", Long.toString(comment.getId())); request.setAttribute("reply", comment.getReply()); request.setAttribute("content", comment.getContent()); request.setAttribute("nickName", comment.getNickName()); request.setAttribute("replayTime", Validator.dateToString(comment .getReplyTime())); } private void saveToDatabase(HttpServletRequest request, Validator validator, boolean isEdit) { if (!validator.hasErrors()) { Comment comment; if (!isEdit) { comment = new Comment(); comment.setCreateTime(new Date()); populateEntity(request, comment); facilityService.saveComment(comment); } else { comment = facilityService.findCommentById(request .getParameter("entityId")); if (!Validator.isEmpty(request.getParameter("reply"))) { comment.setReply(request.getParameter("reply")); comment.setReplyTime(new Date()); } facilityService.updateComment(comment); } } } private void checkInputErrors(HttpServletRequest request, Validator validator) { validator.checkRequiredError(new String[] { "content", "nickName" }); } private void populateEntity(HttpServletRequest request, Comment comment) { comment.setContent(request.getParameter("content")); comment.setNickName(request.getParameter("nickName")); } }