蛋糕商城系统

一、项目演示

二、项目介绍

系统角色 : 管理员、用户

一，管理员
管理员有订单管理，用户管理，商品管理，分类管理等功能

二，用户
用户可进行注册，登录，查看商品列表，查看商品详情，加入购物车，购买商品等功能。

语言：java
技术栈：JSP + Spring+Spring MVC+Mybatis
数据库：MySQL

三、系统部分功能截图

四、部分代码展示

package com.controller;

import java.util.Objects;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
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.multipart.MultipartFile;

import com.entity.Admins;
import com.entity.Goods;
import com.entity.Tops;
import com.entity.Types;
import com.entity.Users;
import com.service.AdminService;
import com.service.GoodService;
import com.service.OrderService;
import com.service.TopService;
import com.service.TypeService;
import com.service.UserService;
import com.util.PageUtil;
import com.util.SafeUtil;
import com.util.UploadUtil;

/**
 * 后台相关接口
 */
@Controller
@RequestMapping("/admin")
public class AdminController {

	private static final int rows = 10;

	@Autowired
	private AdminService adminService;
	@Autowired
	private OrderService orderService;
	@Autowired
	private UserService userService;
	@Autowired
	private GoodService goodService;
	@Autowired
	private TopService topService;
	@Autowired
	private TypeService typeService;

	/**
	 * 管理员登录
	 * @return
	 */
	@RequestMapping("/login")
	public String login(Admins admin, HttpServletRequest request, HttpSession session) {
		if (adminService.checkUser(admin.getUsername(), admin.getPassword())) {
			session.setAttribute("username", admin.getUsername());
			return "redirect:index";
		}
		request.setAttribute("msg", "用户名或密码错误!");
		return "/admin/login.jsp";
	}

	/**
	 * 退出
	 * @return
	 */
	@RequestMapping("/logout")
	public String logout(HttpSession session) {
		session.removeAttribute("admin");
		return "/admin/login.jsp";
	}
	
	/**
	 * 后台首页
	 * @return
	 */
	@RequestMapping("/index")
	public String index(HttpServletRequest request) {
		request.setAttribute("msg", "恭喜你! 登录成功了");
		return "/admin/index.jsp";
	}

	/**
	 * 订单列表
	 * 
	 * @return
	 */
	@RequestMapping("/orderList")
	public String orderList(@RequestParam(required=false, defaultValue="0")byte status, HttpServletRequest request,
			@RequestParam(required=false, defaultValue="1") int page) {
		request.setAttribute("flag", 1);
		request.setAttribute("status", status);
		request.setAttribute("orderList", orderService.getList(status, page, rows));
		request.setAttribute("pageTool", PageUtil.getPageTool(request, orderService.getTotal(status), page, rows));
		return "/admin/order_list.jsp";
	}

	/**
	 * 订单发货
	 * 
	 * @return
	 */
	@RequestMapping("/orderDispose")
	public String orderDispose(int id, byte status,
			@RequestParam(required=false, defaultValue="1") int page) {
		orderService.dispose(id);
		return "redirect:orderList?flag=1&status="+status+"&page="+page;
	}
	
	/**
	 * 订单完成
	 * 
	 * @return
	 */
	@RequestMapping("/orderFinish")
	public String orderFinish(int id, byte status,
			@RequestParam(required=false, defaultValue="1") int page) {
		orderService.finish(id);
		return "redirect:orderList?flag=1&status="+status+"&page="+page;
	}

	/**
	 * 订单删除
	 * 
	 * @return
	 */
	@RequestMapping("/orderDelete")
	public String orderDelete(int id, byte status,
			@RequestParam(required=false, defaultValue="1") int page) {
		orderService.delete(id);
		return "redirect:orderList?flag=1&status="+status+"&page="+page;
	}

	/**
	 * 顾客管理
	 * 
	 * @return
	 */
	@RequestMapping("/userList")
	public String userList(HttpServletRequest request,
			@RequestParam(required=false, defaultValue="1") int page) {
		request.setAttribute("flag", 2);
		request.setAttribute("userList", userService.getList(page, rows));
		request.setAttribute("pageTool", PageUtil.getPageTool(request, userService.getTotal(), page, rows));
		return "/admin/user_list.jsp";
	}

	/**
	 * 顾客添加
	 * 
	 * @return
	 */
	@RequestMapping("/userAdd")
	public String userAdd(HttpServletRequest request) {
		request.setAttribute("flag", 2);
		return "/admin/user_add.jsp";
	}

	/**
	 * 顾客添加
	 * 
	 * @return
	 */
	@RequestMapping("/userSave")
	public String userSave(Users user, HttpServletRequest request, 
			@RequestParam(required=false, defaultValue="1") int page) {
		if (userService.isExist(user.getUsername())) {
			request.setAttribute("msg", "用户名已存在!");
			return "/admin/user_add.jsp";
		}
		userService.add(user);
		return "redirect:userList?flag=2&page="+page;
	}

	/**
	 * 顾客密码重置页面
	 * 
	 * @return
	 */
	@RequestMapping("/userRe")
	public String userRe(int id, HttpServletRequest request) {
		request.setAttribute("flag", 2);
		request.setAttribute("user", userService.get(id));
		return "/admin/user_reset.jsp";
	}

	/**
	 * 顾客密码重置
	 * 
	 * @return
	 */
	@RequestMapping("/userReset")
	public String userReset(Users user, 
			@RequestParam(required=false, defaultValue="1") int page) {
		String password = SafeUtil.encode(user.getPassword());
		user = userService.get(user.getId());
		user.setPassword(password);
		userService.update(user);
		return "redirect:userList?flag=2&page="+page;
	}

	/**
	 * 顾客更新
	 * 
	 * @return
	 */
	@RequestMapping("/userEdit")
	public String userEdit(int id, HttpServletRequest request) {
		request.setAttribute("flag", 2);
		request.setAttribute("user", userService.get(id));
		return "/admin/user_edit.jsp";
	}

	/**
	 * 顾客更新
	 * 
	 * @return
	 */
	@RequestMapping("/userUpdate")
	public String userUpdate(Users user, 
			@RequestParam(required=false, defaultValue="1") int page) {
		userService.update(user);
		return "redirect:userList?flag=2&page="+page;
	}

	/**
	 * 顾客删除
	 * 
	 * @return
	 */
	@RequestMapping("/userDelete")
	public String userDelete(Users user, 
			@RequestParam(required=false, defaultValue="1") int page) {
		userService.delete(user);
		return "redirect:userList?flag=2&page="+page;
	}

	/**
	 * 产品列表
	 * 
	 * @return
	 */
	@RequestMapping("/goodList")
	public String goodList(@RequestParam(required=false, defaultValue="0")byte status, HttpServletRequest request, 
			@RequestParam(required=false, defaultValue="1") int page) {
		request.setAttribute("flag", 3);
		request.setAttribute("page", page);
		request.setAttribute("status", status);
		request.setAttribute("goodList", goodService.getList(status, page, rows));
		request.setAttribute("pageTool", PageUtil.getPageTool(request, goodService.getTotal(status), page, rows));
		return "/admin/good_list.jsp";
	}

	/**
	 * 产品添加
	 * 
	 * @return
	 */
	@RequestMapping("/goodAdd")
	public String goodAdd(HttpServletRequest request) {
		request.setAttribute("flag", 3);
		request.setAttribute("typeList", typeService.getList());
		return "/admin/good_add.jsp";
	}

	/**
	 * 产品添加
	 * 
	 * @return
	 * @throws Exception 
	 */
	@RequestMapping("/goodSave")
	public String goodSave(String name, int price, String intro, int stock, int typeId, 
			MultipartFile cover, MultipartFile image1, MultipartFile image2, 
			@RequestParam(required=false, defaultValue="1") int page) throws Exception {
		Goods good = new Goods();
		good.setName(name);
		good.setPrice(price);
		good.setIntro(intro);
		good.setStock(stock);
		good.setTypeId(typeId);
		good.setCover(UploadUtil.fileUpload(cover));
		good.setImage1(UploadUtil.fileUpload(image1));
		good.setImage2(UploadUtil.fileUpload(image2));
		goodService.add(good);
		return "redirect:goodList?flag=3&page="+page;
	}

	/**
	 * 产品更新
	 * 
	 * @return
	 */
	@RequestMapping("/goodEdit")
	public String goodEdit(int id, HttpServletRequest request) {
		request.setAttribute("flag", 3);
		request.setAttribute("typeList", typeService.getList());
		request.setAttribute("good", goodService.get(id));
		return "/admin/good_edit.jsp";
	}

	/**
	 * 产品更新
	 * 
	 * @return
	 * @throws Exception 
	 */
	@RequestMapping("/goodUpdate")
	public String goodUpdate(int id, String name, int price, String intro, int stock, int typeId,  
			MultipartFile cover, MultipartFile image1, MultipartFile image2,
			@RequestParam(required=false, defaultValue="1") int page) throws Exception {
		Goods good = goodService.get(id);
		good.setName(name);
		good.setPrice(price);
		good.setIntro(intro);
		good.setStock(stock);
		good.setTypeId(typeId);
		if (Objects.nonNull(cover) && !cover.isEmpty()) {
			good.setCover(UploadUtil.fileUpload(cover));
		}
		if (Objects.nonNull(image1) && !image1.isEmpty()) {
			good.setImage1(UploadUtil.fileUpload(image1));
		}
		if (Objects.nonNull(image2) && !image2.isEmpty()) {
			good.setImage2(UploadUtil.fileUpload(image2));
		}
		goodService.update(good);
		return "redirect:goodList?flag=3&page="+page;
	}

	/**
	 * 产品删除
	 * 
	 * @return
	 */
	@RequestMapping("/goodDelete")
	public String goodDelete(int id, 
			@RequestParam(required=false, defaultValue="1") int page) {
		goodService.delete(id);
		return "redirect:goodList?flag=3&page="+page;
	}
	
	/**
	 * 添加推荐
	 * @return
	 */
	@RequestMapping("/topSave")
	public @ResponseBody String topSave(Tops tops, 
			@RequestParam(required=false, defaultValue="0")byte status,
			@RequestParam(required=false, defaultValue="1") int page) {
		int id = topService.add(tops);
		return id > 0 ? "ok" : null;
	}
	
	/**
	 * 删除推荐
	 * @return
	 */
	@RequestMapping("/topDelete")
	public @ResponseBody String topDelete(Tops tops, 
			@RequestParam(required=false, defaultValue="0")byte status,
			@RequestParam(required=false, defaultValue="1") int page) {
		boolean flag = topService.delete(tops);
		return flag ? "ok" : null;
	}

	/**
	 * 类目列表
	 * 
	 * @return
	 */
	@RequestMapping("/typeList")
	public String typeList(HttpServletRequest request) {
		request.setAttribute("flag", 4);
		request.setAttribute("typeList", typeService.getList());
		return "/admin/type_list.jsp";
	}

	/**
	 * 类目添加
	 * 
	 * @return
	 */
	@RequestMapping("/typeSave")
	public String typeSave(Types type, 
			@RequestParam(required=false, defaultValue="1") int page) {
		typeService.add(type);
		return "redirect:typeList?flag=4&page="+page;
	}

	/**
	 * 类目更新
	 * 
	 * @return
	 */
	@RequestMapping("/typeEdit")
	public String typeUp(int id, HttpServletRequest request) {
		request.setAttribute("flag", 4);
		request.setAttribute("type", typeService.get(id));
		return "/admin/type_edit.jsp";
	}

	/**
	 * 类目更新
	 * 
	 * @return
	 */
	@RequestMapping("/typeUpdate")
	public String typeUpdate(Types type, 
			@RequestParam(required=false, defaultValue="1") int page) {
		typeService.update(type);
		return "redirect:typeList?flag=4&page="+page;
	}

	/**
	 * 类目删除
	 * 
	 * @return
	 */
	@RequestMapping("/typeDelete")
	public String typeDelete(Types type, 
			@RequestParam(required=false, defaultValue="1") int page) {
		typeService.delete(type);
		return "redirect:typeList?flag=4&page="+page;
	}

	/**
	 * 管理员列表
	 * 
	 * @return
	 */
	@RequestMapping("/adminList")
	public String adminList(HttpServletRequest request, 
			@RequestParam(required=false, defaultValue="1") int page) {
		request.setAttribute("flag", 5);
		request.setAttribute("adminList", adminService.getList(page, rows));
		request.setAttribute("pageTool", PageUtil.getPageTool(request, adminService.getTotal(), page, rows));
		return "/admin/admin_list.jsp";
	}

	/**
	 * 管理员修改自己密码
	 * 
	 * @return
	 */
	@RequestMapping("/adminRe")
	public String adminRe(HttpServletRequest request, HttpSession session) {
		request.setAttribute("flag", 5);
		request.setAttribute("admin", adminService.getByUsername(String.valueOf(session.getAttribute("username"))));
		return "/admin/admin_reset.jsp";
	}

	/**
	 * 管理员修改自己密码
	 * 
	 * @return
	 */
	@RequestMapping("/adminReset")
	public String adminReset(Admins admin, HttpServletRequest request) {
		request.setAttribute("flag", 5);
		if (adminService.get(admin.getId()).getPassword().equals(SafeUtil.encode(admin.getPassword()))) {
			admin.setPassword(SafeUtil.encode(admin.getPasswordNew()));
			adminService.update(admin);
			request.setAttribute("admin", admin);
			request.setAttribute("msg", "修改成功!");
		}else {
			request.setAttribute("msg", "原密码错误!");
		}
		return "/admin/admin_reset.jsp";
	}

	/**
	 * 管理员添加
	 * 
	 * @return
	 */
	@RequestMapping("/adminSave")
	public String adminSave(Admins admin, HttpServletRequest request, 
			@RequestParam(required=false, defaultValue="1") int page) {
		if (adminService.isExist(admin.getUsername())) {
			request.setAttribute("msg", "用户名已存在!");
			return "/admin/admin_add.jsp";
		}
		adminService.add(admin);
		return "redirect:adminList?flag=5&page="+page;
	}

	/**
	 * 管理员修改
	 * 
	 * @return
	 */
	@RequestMapping("/adminEdit")
	public String adminEdit(int id, HttpServletRequest request) {
		request.setAttribute("flag", 5);
		request.setAttribute("admin", adminService.get(id));
		return "/admin/admin_edit.jsp";
	}

	/**
	 * 管理员更新
	 * 
	 * @return
	 */
	@RequestMapping("/adminUpdate")
	public String adminUpdate(Admins admin, 
			@RequestParam(required=false, defaultValue="1") int page) {
		admin.setPassword(SafeUtil.encode(admin.getPassword()));
		adminService.update(admin);
		return "redirect:adminList?flag=5&page="+page;
	}

	/**
	 * 管理员删除
	 * 
	 * @return
	 */
	@RequestMapping("/adminDelete")
	public String adminDelete(Admins admin, 
			@RequestParam(required=false, defaultValue="1") int page) {
		adminService.delete(admin);
		return "redirect:adminList?flag=5&page="+page;
	}

}

package com.controller;

import javax.annotation.Resource;
import javax.servlet.ServletRequest;
import javax.servlet.http.HttpSession;

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 com.entity.Goods;
import com.entity.Items;
import com.entity.Orders;
import com.entity.Users;
import com.service.GoodService;
import com.service.OrderService;
import com.service.TypeService;
import com.service.UserService;
import com.util.SafeUtil;

import java.util.List;
import java.util.Objects;

/**
 * 用户相关接口
 */
@Controller
@RequestMapping("/index")
public class UserController{
	
	private static final String INDENT_KEY = "order";
	
	@Resource
	private UserService userService;
	@Resource
	private OrderService orderService;
	@Resource
	private GoodService goodService;
	@Resource
	private TypeService typeService;

	
	/**
	 * 注册用户
	 * @return
	 */
	@RequestMapping("/register")
	public String register(@RequestParam(required=false, defaultValue="0")int flag, Users user, Model model){
		model.addAttribute("typeList", typeService.getList());
		if(flag==-1) {
			model.addAttribute("flag", 5); // 注册页面
			return "/index/register.jsp";
		}
		if (user.getUsername().isEmpty()) {
			model.addAttribute("msg", "用户名不能为空!");
			return "/index/register.jsp";
		}else if (userService.isExist(user.getUsername())) {
			model.addAttribute("msg", "用户名已存在!");
			return "/index/register.jsp";
		}else {
			String password = user.getPassword();
			userService.add(user);
			user.setPassword(password);
			return "redirect:login?flag=-1"; // 注册成功后转去登录
		}
	}
	
	/**
	 * 用户登录
	 * @return
	 */
	@RequestMapping("/login")
	public String login(@RequestParam(required=false, defaultValue="0")int flag, Users user, HttpSession session, Model model) {
		model.addAttribute("typeList", typeService.getList());
		if(flag==-1) {
			flag = 6; // 登录页面
			return "/index/login.jsp";
		}
		if(userService.checkUser(user.getUsername(), user.getPassword())){
			session.setAttribute("user", userService.get(user.getUsername()));
			return "redirect:index";
		} else {
			model.addAttribute("msg", "用户名或密码错误!");
			return "/index/login.jsp";
		}
	}

	/**
	 * 注销登录
	 * @return
	 */
	@RequestMapping("/logout")
	public String logout(HttpSession session) {
		session.removeAttribute("user");
		session.removeAttribute("order");
		return "/index/login.jsp";
	}
	
	/**
	 * 查看购物车
	 * @return
	 */
	@RequestMapping("/cart")
	public String cart(Model model) {
		model.addAttribute("typeList", typeService.getList());
		return "/index/cart.jsp";
	}
	
	/**
	 * 购买
	 * @return
	 */
	@RequestMapping("/buy")
	public @ResponseBody String buy(int goodid, HttpSession session){
		Goods goods = goodService.get(goodid);
		if (goods .getStock() <= 0) { // 库存不足
			return "empty";
		}
		Orders order = (Orders) session.getAttribute(INDENT_KEY);
		if (order==null) {
			session.setAttribute(INDENT_KEY, orderService.add(goods));
		}else {
			session.setAttribute(INDENT_KEY, orderService.addOrderItem(order, goods));
		}
		return "ok";
	}
	
	/**
	 * 减少
	 */
	@RequestMapping("/lessen")
	public @ResponseBody String lessen(int goodid, HttpSession session){
		Orders order = (Orders) session.getAttribute(INDENT_KEY);
		if (order != null) {
			session.setAttribute(INDENT_KEY, orderService.lessenIndentItem(order, goodService.get(goodid)));
		}
		return "ok";
	}
	
	/**
	 * 删除
	 */
	@RequestMapping("/delete")
	public @ResponseBody String delete(int goodid, HttpSession session){
		Orders order = (Orders) session.getAttribute(INDENT_KEY);
		if (order != null) {
			session.setAttribute(INDENT_KEY, orderService.deleteIndentItem(order, goodService.get(goodid)));
		}
		return "ok";
	}
	
	
	/**
	 * 提交订单
	 * @return
	 */
	@RequestMapping("/save")
	public String save(ServletRequest request, HttpSession session, Model model){
		model.addAttribute("typeList", typeService.getList());
		Users user = (Users) session.getAttribute("user");
		if (user == null) {
			request.setAttribute("msg", "请登录后提交订单!");
			return "/index/login.jsp";
		}
		Orders sessionOrder = (Orders) session.getAttribute(INDENT_KEY);
		if (sessionOrder != null) {
			if (sessionOrder != null) {
				for(Items item : sessionOrder.getItemList()){ // 检测商品库存(防止库存不足)
					Goods product = goodService.get(item.getGoodId());
					if(item.getAmount() > product.getStock()){
						request.setAttribute("msg", "商品 ["+product.getName()+"] 库存不足! 当前库存数量: "+product.getStock());
						return "/index/cart.jsp";
					}
				}
			}
			sessionOrder.setUserId(user.getId());
			sessionOrder.setUser(userService.get(user.getId()));
			int orderid = orderService.save(sessionOrder);	// 保存订单
			session.removeAttribute(INDENT_KEY);	// 清除购物车
			return "redirect:topay?orderid="+orderid;
		}
		request.setAttribute("msg", "处理失败!");
		return "/index/cart.jsp";
	}
	
	/**
	 * 支付页面
	 * @return
	 */
	@RequestMapping("/topay")
	public String topay(int orderid, ServletRequest request, Model model) {
		model.addAttribute("typeList", typeService.getList());
		request.setAttribute("order", orderService.get(orderid));
		return "/index/pay.jsp";
	}
	
	/**
	 * 支付(模拟)
	 * @return
	 */
	@RequestMapping("/pay")
	public String pay(Orders order, Model model) {
		model.addAttribute("typeList", typeService.getList());
		orderService.pay(order);
		return "redirect:payok?orderid="+order.getId();
	}
	
	/**
	 * 支付成功
	 * @return
	 */
	@RequestMapping("/payok")
	public String payok(int orderid, ServletRequest request, Model model) {
		model.addAttribute("typeList", typeService.getList());
		Orders order = orderService.get(orderid);
		int paytype = order.getPaytype();
		if(paytype == Orders.PAYTYPE_WECHAT || paytype == Orders.PAYTYPE_ALIPAY) {
			request.setAttribute("msg", "订单["+orderid+"]支付成功");
		}else {
			request.setAttribute("msg", "订单["+orderid+"]货到付款");
		}
		return "/index/payok.jsp";
	}
	
	/**
	 * 查看订单
	 * @return
	 */
	@RequestMapping("/order")
	public String order(HttpSession session, Model model){
		model.addAttribute("flag", 3);
		model.addAttribute("typeList", typeService.getList());
		Users user = (Users) session.getAttribute("user");
		if (user == null) {
			model.addAttribute("msg", "请登录后查看订单!");
			return "/index/login.jsp";
		}
		List<Orders> orderList = orderService.getListByUserid(user.getId());
		if (orderList!=null && !orderList.isEmpty()) {
			for(Orders order : orderList){
				order.setItemList(orderService.getItemList(order.getId()));
			}
		}
		model.addAttribute("orderList", orderList);
		return "/index/order.jsp";
	}
	
	
	/**
	 * 个人信息
	 * @return
	 */
	@RequestMapping("/my")
	public String my(Users user, HttpSession session, Model model){
		model.addAttribute("flag", 4);
		model.addAttribute("typeList", typeService.getList());
		Users userLogin = (Users) session.getAttribute("user");
		if (userLogin == null) {
			model.addAttribute("msg", "请先登录!");
			return "/index/login.jsp";
		}
		// 进入个人中心
		if (Objects.isNull(user) || Objects.isNull(user.getId())) {
			return "/index/my.jsp";
		}
		Users u = userService.get(user.getId());
		// 修改资料
		u.setName(user.getName());
		u.setPhone(user.getPhone());
		u.setAddress(user.getAddress());
		userService.update(u);  // 更新数据库
		session.setAttribute("user", u); // 更新session
		model.addAttribute("msg", "信息修改成功!");
		// 修改密码
		if(user.getPasswordNew()!=null && !user.getPasswordNew().trim().isEmpty()) {
			if (user.getPassword()!=null && !user.getPassword().trim().isEmpty() 
					&& SafeUtil.encode(user.getPassword()).equals(u.getPassword())) {
				if (user.getPasswordNew()!=null && !user.getPasswordNew().trim().isEmpty()) {
					u.setPassword(SafeUtil.encode(user.getPasswordNew()));
				}
				userService.update(u);  // 更新数据库
				session.setAttribute("user", u); // 更新session
				model.addAttribute("msg", "密码修改成功!");
			}else {
				model.addAttribute("msg", "原密码错误!");
			}
		}
		return "/index/my.jsp";
	}
	
}

package com.service;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.dao.ItemsDao;
import com.dao.OrdersDao;
import com.entity.Goods;
import com.entity.Items;
import com.entity.Orders;

/**
 * 商品订单服务
 */
@Service	// 注解为service层spring管理bean
@Transactional	// 注解此类所有方法加入spring事务, 具体设置默认
public class OrderService {

	@Autowired
	private OrdersDao orderDao;
	@Autowired
	private ItemsDao itemDao;
	@Autowired
	private GoodService goodService;
	
	
	/**
	 * 创建订单
	 * @param good
	 * @return
	 */
	public Orders add(Goods good) {
		List<Items> itemList = new ArrayList<Items>();
		itemList.add(addItem(good));
		Orders order = new Orders();
		order.setItemList(itemList);
		order.setTotal(good.getPrice());
		order.setAmount(1);
		return order;
	}

	/**
	 * 向订单添加项目
	 * @param order
	 * @param good
	 * @return
	 */
	public Orders addOrderItem(Orders order, Goods good) {
		List<Items> itemList = order.getItemList();
		itemList = itemList==null ? new ArrayList<Items>() : itemList;
		// 如果购物车已有此项目, 数量+1
		boolean notThis = true;
		for (Items item : itemList) {
			if (item.getGoodId() == good.getId()) {
				item.setAmount(item.getAmount() + 1);
				item.setTotal(good.getPrice() * item.getAmount());
				notThis = false;
			}
		}
		// 如果当前购物车没有此项目, 创建新条目
		if (notThis) {
			itemList.add(addItem(good));
		}
		order.setTotal(order.getTotal() + good.getPrice());
		order.setAmount(order.getAmount() + 1);
		return order;
	}
	
	/**
	 * 从订单中减少项目
	 * @param order
	 * @param good
	 * @return
	 */
	public Orders lessenIndentItem(Orders order, Goods good) {
		List<Items> itemList = order.getItemList();
		itemList = itemList==null ? new ArrayList<Items>() : itemList;
		// 如果购物车已有此项目, 数量-1
		boolean noneThis = true;
		for (Items item : itemList) {
			if (item.getGoodId() == good.getId()) {
				if (item.getAmount() - 1 <= 0) { // 减少到0后删除
					return deleteIndentItem(order, good);
				}
				item.setAmount(item.getAmount() - 1);
				item.setTotal(good.getPrice() * item.getAmount());
				noneThis = false;
			}
		}
		// 如果当前购物车没有项目, 直接返回
		if (noneThis) {
			return order;
		}
		order.setTotal(order.getTotal() - good.getPrice());
		order.setAmount(order.getAmount() - 1);
		return order;
	}
	
	/**
	 * 从订单中删除项目
	 * @param order
	 * @param good
	 * @return
	 */
	public Orders deleteIndentItem(Orders order, Goods good) {
		List<Items> itemList = order.getItemList();
		itemList = itemList==null ? new ArrayList<Items>() : itemList;
		// 如果购物车已有此项目, 数量清零
		boolean noneThis = true;
		int itemAmount = 0;
		List<Items> resultList = new ArrayList<Items>();
		for (Items item : itemList) {
			if (item.getGoodId() == good.getId()) {
				itemAmount = item.getAmount();
				noneThis = false;
				continue;
			}
			resultList.add(item);
		}
		// 如果已经没有项目, 返回null
		if (resultList.isEmpty()) {
			return null;
		}
		order.setItemList(resultList);
		// 如果当前购物车没有项目, 直接返回
		if (noneThis) {
			return order;
		}
		order.setTotal(order.getTotal() - good.getPrice() * itemAmount);
		order.setAmount(order.getAmount() - itemAmount);
		return order;
	}

	/**
	 * 保存订单
	 * @param order
	 */
	public int save(Orders order) {
		order.setStatus(Orders.STATUS_UNPAY);
		order.setSystime(new Date());
		orderDao.insert(order);
		int orderid = order.getId();
		for(Items item : order.getItemList()){
			item.setOrderId(orderid);
			itemDao.insert(item);
		}
		return orderid;
	}
	
	/**
	 * 订单支付
	 * @param order
	 */
	public void pay(Orders order) {
		Orders old = orderDao.selectById(order.getId());
		// 微信或支付宝支付时, 模拟支付完成
		int paytype = order.getPaytype();
		if(paytype == Orders.PAYTYPE_WECHAT || paytype == Orders.PAYTYPE_ALIPAY) {
			old.setStatus(Orders.STATUS_PAYED);
		}else {
			old.setStatus(Orders.STATUS_SEND);
		}
		old.setPaytype(order.getPaytype());
		old.setName(order.getName());
		old.setPhone(order.getPhone());
		old.setAddress(order.getAddress());
		orderDao.updateById(old);
	}
	
	/**
	 * 获取订单列表
	 * @param page
	 * @param row
	 * @return
	 */
	public List<Orders> getList(byte status, int page, int row) {
		List<Orders> orderList = orderDao.getListByStatus(status, row * (page-1), row);
		for(Orders order : orderList) {
			order.setItemList(this.getItemList(order.getId()));
		}
		return orderList;
	}
	
	/**
	 * 获取总数
	 * @return
	 */
	public int getTotal(byte status) {
		return (int)orderDao.getTotalByStatus(status);
	}

	/**
	 * 订单发货
	 * @param id
	 * @return 
	 */
	public boolean dispose(int id) {
		Orders order = orderDao.selectById(id);
		order.setStatus(Orders.STATUS_SEND);
		return orderDao.updateByIdSelective(order) > 0;
	}
	
	/**
	 * 订单完成
	 * @param id
	 * @return 
	 */
	public boolean finish(int id) {
		Orders order = orderDao.selectById(id);
		order.setStatus(Orders.STATUS_FINISH);
		return orderDao.updateByIdSelective(order) > 0;
	}

	/**
	 * 删除订单
	 * @param id
	 */
	public boolean delete(int id) {
		return orderDao.deleteById(id) > 0;
	}
	
	/**
	 * 获取某用户全部订单
	 * @param userid
	 */
	public List<Orders> getListByUserid(int userid) {
		return orderDao.getListByUserid(userid);
	}

	/**
	 * 通过id获取
	 * @param orderid
	 * @return
	 */
	public Orders get(int orderid) {
		return orderDao.selectById(orderid);
	}
	
	
	/**
	 * 创建订单项
	 * @param good
	 * @return
	 */
	private Items addItem(Goods good) {
		Items item = new Items();
		item.setGoodId(good.getId());
		item.setAmount(1);
		item.setPrice(good.getPrice());
		item.setTotal(good.getPrice());
		item.setGood(goodService.get(item.getGoodId()));
		return item;
	}
	
	/**
	 * 获取订单项目列表
	 * @param orderid
	 * @return
	 */
	public List<Items> getItemList(int orderid){
		List<Items> itemList = itemDao.getItemList(orderid);
		for(Items item : itemList) {
			item.setGood(goodService.get(item.getGoodId()));
		}
		return itemList;
	}
}

五、底部获取项目源码（9.9￥带走）

有问题，或者需要协助调试运行项目的也可以