校园商铺-8商品模块-8商品编辑之后段开发下和前端实现

1.商品编辑之Service层

1.1 Service层需要2个接口方法：

• getProductById：去编辑之前先获取商品的信息
• modifyProduct：修改商品

package com.csj2018.o2o.service;

import java.util.List;

import com.csj2018.o2o.dto.ImageHolder;
import com.csj2018.o2o.dto.ProductExecution;
import com.csj2018.o2o.entity.Product;
import com.csj2018.o2o.exceptions.ProductOperationException;

public interface ProductService {
	/**
	 * 查询商品列表并分页，可输入的条件有：商品名（模糊），商品状态，店铺id，商品类别
	 * @param productCondition
	 * @param pageIndex
	 * @param pageSize
	 * @return
	 */
	ProductExecution getProductList(Product productCondition, int pageIndex, int pageSize);
	/**
	 * 8-7 通过商品id查询唯一的商品信息
	 * @param productId
	 * @return
	 */
	Product getProductById(long productId);
	/**
	 * 添加商品信息以及图片处理
	 * @param product
	 * @param thumbnail 缩略图
	 * @param productImgList 详情图
	 * @return
	 * @throws ProductOperationException
	 */
	ProductExecution addProduct(Product product, ImageHolder thumbnail, List<ImageHolder> productImgList) throws ProductOperationException;
	/**
	 * 8-7 修改商品信息以及图片处理
	 * @param product
	 * @param thumbnail
	 * @param productImgList
	 * @return
	 * @throws ProductOperationException
	 */
	ProductExecution modifyProduct(Product product, ImageHolder thumbnail, List<ImageHolder> productImgList) throws ProductOperationException;
}

1.2.商品编辑Service实现类

package com.csj2018.o2o.service.impl;

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.csj2018.o2o.dao.ProductDao;
import com.csj2018.o2o.dao.ProductImgDao;
import com.csj2018.o2o.dto.ImageHolder;
import com.csj2018.o2o.dto.ProductExecution;
import com.csj2018.o2o.entity.Product;
import com.csj2018.o2o.entity.ProductImg;
import com.csj2018.o2o.enums.ProductStateEnum;
import com.csj2018.o2o.exceptions.ProductOperationException;
import com.csj2018.o2o.service.ProductService;
import com.csj2018.o2o.util.*;

@Service
public class ProductServiceImpl implements ProductService{
	@Autowired
	private ProductDao productDao;
	@Autowired
	private ProductImgDao productImgDao;
	/*
	 * 1.处理缩略图，获取缩略图相对路径并赋值给product
	 * 2.往tb_product写入商品信息，获取productId
	 * 3.结合productId批量处理商品详情图
	 * 4.将商品详情图列表批量插入tb_product_img中
	 * 通过spring的事务管理去执行这4不操作，任何一步出错就回滚，不会往表里写入
	 */
	@Override
	@Transactional
	public ProductExecution addProduct(Product product, ImageHolder thumbnail, List<ImageHolder> productImgHolderList)
			throws ProductOperationException {
		//空值判断
		if(product != null && product.getShop() != null && product.getShop().getShopId() != null) {
			//给商品设置默认属性
			product.setCreateTime(new Date());
			product.setLastEditTime(new Date());
			//默认为上架的状态
			product.setEnableStatus(1);
			//若商品缩略图不为空，则添加缩略图信息到商品
			if(thumbnail != null) {
				addThumbnail(product,thumbnail);
			}
			try {
				int effectedNum = productDao.insertProduct(product);
				if(effectedNum <= 0) {
					throw new ProductOperationException("创建商品失败");
				}
			}catch (Exception e) {
				throw new ProductOperationException("创建商品失败："+e.toString());
			}
			//若商品详情图不为空，则向tb_product_img添加商品详情图
			if(productImgHolderList != null && productImgHolderList.size() >0) {
				addProductImgList(product,productImgHolderList);
			}
			return new ProductExecution(ProductStateEnum.SUCCESS,product);
		}else {
			//传参为空，则返回控制错误信息
			return new ProductExecution(ProductStateEnum.EMPTY);
		}
	}
	/**
	 * 向product对象添加缩略图
	 * @param product
	 * @param thumbnail
	 */
	private void addThumbnail(Product product, ImageHolder thumbnail) {
		String dest = PathUtil.getShopImagePath(product.getShop().getShopId());
		String thumbnailAddr = ImageUtil.generateThumbnail(thumbnail, dest);
		product.setImgAddr(thumbnailAddr);
	}
	private void addProductImgList(Product product, List<ImageHolder> productImgHolderList) {
		//获取图片存储路径，这里直接存放到相应店铺的文件夹下，同缩略图
		String dest = PathUtil.getShopImagePath(product.getShop().getShopId());
		List<ProductImg> productImgList = new ArrayList<ProductImg>();
		//遍历，获得详情图片列表
		for(ImageHolder productImgHolder:productImgHolderList) {
			String imgAddr = ImageUtil.generateNormalImg(productImgHolder, dest);
			ProductImg productImg = new ProductImg();
			productImg.setImgAddr(imgAddr);
			productImg.setProductId(product.getProductId());
			productImg.setCreateTime(new Date());
			productImgList.add(productImg);
		}
		if(productImgList.size() > 0) {
			try {
				int effectedNum = productImgDao.batchInsertProductImg(productImgList);
				if(effectedNum <= 0) {
					throw new ProductOperationException("创建商品详情图片失败");
				}
			}catch (Exception e) {
				throw new ProductOperationException("创建商品详情图片失败："+e.toString());
			}
		}
	}
	@Override
	public ProductExecution getProductList(Product productCondition, int pageIndex, int pageSize) {
		// TODO Auto-generated method stub
		return null;
	}
	@Override
	public Product getProductById(long productId) {
		return productDao.queryProductById(productId);
	}
	//1.若缩略图参数有值，则处理缩略图
	//2.若原先存在缩略图则先删除再添加新图，之后获取缩略图相对路径并赋值给product
	//3.将tb_product_img下面的该商品原先的商品详情记录全部清除
	//4.更新tb_product，tb_product_img的信息
	@Override
	@Transactional
	public ProductExecution modifyProduct(Product product, ImageHolder thumbnail, List<ImageHolder> productImgList)
			throws ProductOperationException {
		//空值判断。存放商品缩略图和详情图需要用到shopId做路径，因此需要针对shop做空值判断
		if(product != null && product.getShop() != null && product.getShop().getShopId() != null) {
			//给商品设置添加默认属性
			product.setLastEditTime(new Date());
			//若商品缩略图不为空且原有缩略图不为空，则删除原有缩略图并添加
			if(thumbnail != null) {
				//先获取一遍原有信息，因为原来的信息里有原图片地址
				Product tempProduct = productDao.queryProductById(product.getProductId());
				if(tempProduct.getImgAddr() != null) {
					//从磁盘中删除缩略图
					ImageUtil.deleteFileOfPath(tempProduct.getImgAddr());
				}
				addThumbnail(product,thumbnail);
			}
			//如果有新存入的商品详情图，则将原先的删除，并添加新的图片
			if(productImgList != null && productImgList.size() > 0) {
				deleteProductImgList(product.getProductId());
				addProductImgList(product,productImgList);
			}
			try {
				//更新商品信息
				int effectedNum = productDao.updateProduct(product);
				if(effectedNum <= 0) {
					throw new ProductOperationException("更新商品信息失败");
				}
				return new ProductExecution(ProductStateEnum.SUCCESS,product);
			}catch (Exception e) {
				throw new ProductOperationException("更新商品信息失败："+e.toString());
			}
		}else {
			return new ProductExecution(ProductStateEnum.EMPTY);
		}
	}
	/**
	 * 删除某个商品下的所有详情图
	 * @param productId
	 */
	private void deleteProductImgList(long productId) {
		//根据productId获取原来的图片
		List<ProductImg> productImgList = productImgDao.queryProductImgList(productId);
		//从磁盘删除原来的图片
		for(ProductImg productImg:productImgList) {
			ImageUtil.deleteFileOfPath(productImg.getImgAddr());
		}
		//从数据库删除原有图片的信息
		productImgDao.deleteProductImgByProductId(productId);
	}
}

1.3.针对ModifyProduct的单元测试

package com.csj2018.o2o.service;

import static org.junit.Assert.assertEquals;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.junit.Ignore;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import com.csj2018.o2o.BaseTest;
import com.csj2018.o2o.dto.ImageHolder;
import com.csj2018.o2o.dto.ProductExecution;
import com.csj2018.o2o.entity.Product;
import com.csj2018.o2o.entity.ProductCategory;
import com.csj2018.o2o.entity.Shop;
import com.csj2018.o2o.enums.ProductStateEnum;
import com.csj2018.o2o.exceptions.ProductOperationException;
import com.csj2018.o2o.exceptions.ShopOperationException;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

public class ProductServiceTest extends BaseTest{
	@Autowired
	private ProductService productService;
	@Test
	@Ignore
	public void testAddProduct() throws ProductOperationException,FileNotFoundException{
		//创建shopID为1且productCategory为1的商品实例，并给其成员变量赋值
		Product product = new Product();
		Shop shop = new Shop();
		shop.setShopId(1L);
		ProductCategory pc = new ProductCategory();
		pc.setProductCategoryId(10L);
		product.setShop(shop);
		product.setProductCategory(pc);
		product.setProductName("测试商品1");
		product.setProductDesc("测试商品1");
		product.setPriority(20);
		product.setCreateTime(new Date());
		product.setEnableStatus(1);
		//创建缩略图
		File thumbnailFile = new File("/Users/chenshanju/Downloads/Y61.jpeg");
		InputStream is = new FileInputStream(thumbnailFile);
		ImageHolder thumbnail = new ImageHolder(thumbnailFile.getName(),is);
		//创建2个详情图片
		File productImg1 = new File("/Users/chenshanju/Downloads/Prado.jpg");
		InputStream is1 = new FileInputStream(thumbnailFile);
		File productImg2 = new File("/Users/chenshanju/Downloads/Pajero.jpg");
		InputStream is2 = new FileInputStream(thumbnailFile);
		List<ImageHolder> productImgList = new ArrayList<ImageHolder>();
		productImgList.add(new ImageHolder(productImg1.getName(),is1));
		productImgList.add(new ImageHolder(productImg2.getName(),is2));
		
		ProductExecution pe = productService.addProduct(product, thumbnail, productImgList);
		assertEquals(ProductStateEnum.SUCCESS.getState(),pe.getState());
	}
    //8-7
	@Test
	public void testModifyProduct() throws ShopOperationException,FileNotFoundException{
		//创建shopId为1且productCategory为1的商品示例，并给其成员变量赋值
		Product product = new Product();
		Shop shop = new Shop();
		shop.setShopId(1L);
		ProductCategory pc = new ProductCategory();
		pc.setProductCategoryId(12L);
		product.setProductId(1L);
		product.setShop(shop);
		product.setProductCategory(pc);
		product.setProductName("正式的商品");
		product.setProductDesc("正式的商品");
		//创建缩略图文件流
		File thumbnailFile = new File("/Users/chenshanju/Downloads/tq91.jpg");
		InputStream is = new FileInputStream(thumbnailFile);
		ImageHolder thumbnail = new ImageHolder(thumbnailFile.getName(),is);
		//创建2个商品详情图文件流并将它们添加到详情图列表中
		File productImg1 = new File("/Users/chenshanju/Downloads/Pajero.jpg");
		InputStream is1 = new FileInputStream(productImg1);
		File productImg2 = new File("/Users/chenshanju/Downloads/Prado.jpg");
		InputStream is2 = new FileInputStream(productImg2);
		List<ImageHolder> productImgList = new ArrayList<>();
		productImgList.add(new ImageHolder(productImg1.getName(),is1));
		productImgList.add(new ImageHolder(productImg2.getName(),is2));
		//添加商品并验证
		ProductExecution pe = productService.modifyProduct(product, thumbnail, productImgList);
		assertEquals(ProductStateEnum.SUCCESS.getState(),pe.getState());
	}
}

2.Controller

package com.csj2018.o2o.web.shopadmin;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

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.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.MultipartRequest;
import org.springframework.web.multipart.commons.CommonsMultipartFile;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;

import com.csj2018.o2o.dto.ImageHolder;
import com.csj2018.o2o.dto.ProductExecution;
import com.csj2018.o2o.entity.Product;
import com.csj2018.o2o.entity.ProductCategory;
import com.csj2018.o2o.entity.Shop;
import com.csj2018.o2o.enums.ProductStateEnum;
import com.csj2018.o2o.service.ProductCategoryService;
import com.csj2018.o2o.service.ProductService;
import com.csj2018.o2o.util.CodeUtil;
import com.csj2018.o2o.util.HttpServletRequestUtil;
import com.fasterxml.jackson.databind.ObjectMapper;

@Controller
@RequestMapping("/shopadmin")
public class ProductManagementController {
	@Autowired
	private ProductService productService;
	@Autowired
	private ProductCategoryService productCategoryService;
	
	//支持上传图片详情图的最大数值
	private static final int IMAGEMAXCOUNT = 6;
	
	@RequestMapping(value="/addproduct",method=RequestMethod.POST)
	@ResponseBody
	private Map<String,Object> addProduct(HttpServletRequest request){
		Map<String, Object> modelMap = new HashMap<String,Object>();
		//验证码校验
		if(!CodeUtil.checkVerifyCode(request)) {
			modelMap.put("success", false);
			modelMap.put("errMsg", "输入了错误的验证码");
			return modelMap;
		}
		//接收前端参数的变量的初始化，包括商品、缩略图、详情图列表实体类
		ObjectMapper mapper = new ObjectMapper();
		Product product = null;
		String productStr = HttpServletRequestUtil.getString(request, "productStr");
		MultipartHttpServletRequest multipartRequest = null;
		ImageHolder thumbnail = null;
		List<ImageHolder> productImgList = new ArrayList<ImageHolder>();
		CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
		
		try {
			//若请求中存在文件流，则取出相关的文件（包括缩略图和详情图）
			if(multipartResolver.isMultipart(request)) {
				
				multipartRequest = (MultipartHttpServletRequest) request;
				//取出缩略图并构建ImageHolder的对象
				CommonsMultipartFile thumbnailFile = (CommonsMultipartFile) multipartRequest.getFile("thumbnail");
				if(thumbnailFile != null) {
					thumbnail = handleImage(request,thumbnail,productImgList);
				}
			}else {
				modelMap.put("success", false);
				modelMap.put("errMsg", "上传图片不为空");
				return modelMap;
			}
		}catch (Exception e) {
			modelMap.put("success", false);
			modelMap.put("errMsg", e.toString());
			return modelMap;
		}
		
		try {
			//
			product = mapper.readValue(productStr,Product.class);
			
		}catch(Exception e) {
			modelMap.put("success", false);
			modelMap.put("errMsg", e.toString());
			return modelMap;
		}
		//若product信息，缩略图、详情图不为空，则开始进行商品添加操作
		if(product != null && thumbnail != null &&productImgList.size() != 0) {
			try {
				//从session中获取当前店铺的ID，并赋值给product，减少对前端数据的依赖
				Shop currentShop = (Shop) request.getSession().getAttribute("currentShop");
				product.setShop(currentShop);
				//执行添加操作
				ProductExecution pe = productService.addProduct(product, thumbnail, productImgList);
				if(pe.getState() == ProductStateEnum.SUCCESS.getState()) { 
					modelMap.put("success", true);
				}else {
					modelMap.put("success", false);
					modelMap.put("errMsg", pe.getStateInfo());
				}
			}catch (RuntimeException e) {
				modelMap.put("success", false);
				modelMap.put("errMsg", e.toString());
				return modelMap;
			}
		}else {
			modelMap.put("success",false);
			modelMap.put("errMsg", "请输入商品信息");
		}
		return modelMap;
	}
	/**
	 * 8-7
	 * @param productId
	 * @return
	 */
	@RequestMapping(value="/getproductbyid", method=RequestMethod.GET)
	@ResponseBody
	private Map<String,Object> getProductById(@RequestParam Long productId){
		Map<String, Object> modelMap = new HashMap<>();
		//非空判断
		if(productId > -1) {
			//获取商品信息
			Product product = productService.getProductById(productId);
			System.out.println(product.getShop().getShopId());
			//获取该店铺下的商品类别列表
			List<ProductCategory> productCategoryList = productCategoryService.getProductCategoryList(product.getShop().getShopId());
			modelMap.put("product", product);
			modelMap.put("productCategoryList", productCategoryList);
			modelMap.put("success", true);
		}else {
			modelMap.put("success", false);
			modelMap.put("errMsg", "empty productId");
		}
		return modelMap;
	}
	@RequestMapping(value="/modifyproduct", method=RequestMethod.POST)
	@ResponseBody
	private Map<String,Object> modifyProduct(HttpServletRequest request){
		Map<String, Object> modelMap = new HashMap<String, Object>();
		//是商品编辑时候调用,还是上下架操作时候调用
		//若为前者则进行验证码判断，后者则跳过验证码判断
		boolean statusChange = HttpServletRequestUtil.getBoolean(request, "statusChange");
		//验证码判断
		if(!statusChange && !CodeUtil.checkVerifyCode(request)) {
			modelMap.put("success", false);
			modelMap.put("errMsg", "输入了错误的验证码");
			return modelMap;
		}
		//接收前端参数的变量的初始化，包括商品，缩略图，详情图列表实体类
		ObjectMapper mapper = new ObjectMapper();
		Product product = null;
		ImageHolder thumbnail = null;
		List<ImageHolder> productImgList = new ArrayList<ImageHolder>();
		CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext());
		//若请求中存在文件流，则取出相关的文件（包括缩略图和详情图）
		try {
			if(multipartResolver.isMultipart(request)) {
				thumbnail = handleImage(request, thumbnail, productImgList);
			}
		}catch (Exception e) {
			modelMap.put("success", false);
			modelMap.put("errMsg", e.toString());
			return modelMap;
		}
		try {
			String productStr = HttpServletRequestUtil.getString(request, "productStr");
			//尝试获取从前端传过来的表单String流，并将其转化为Product对象
			product = mapper.readValue(productStr, Product.class);
		}catch(Exception e) {
			modelMap.put("success", false);
			modelMap.put("errMsg", e.toString());
			return modelMap;
		}
		//非空判断
		if(product != null) {
			try {
				//从session中获取当前店铺的ID并赋值给product，减少对前端数据的依赖
				Shop currentShop = (Shop) request.getSession().getAttribute("currentShop");
				product.setShop(currentShop);
				//开始进行商品信息变更操作
				ProductExecution pe = productService.modifyProduct(product, thumbnail, productImgList);
				if(pe.getState() == ProductStateEnum.SUCCESS.getState()) {
					modelMap.put("success", true);
				}else {
					modelMap.put("false", false);
					modelMap.put("errMsg", pe.getStateInfo());
				}
			}catch(RuntimeException e) {
				modelMap.put("success", false);
				modelMap.put("errMsg", e.toString());
				return modelMap;
			}
		}
		return modelMap;
	}
	private ImageHolder handleImage(HttpServletRequest request, ImageHolder thumbnail, List<ImageHolder> productImgList) throws IOException{
		MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
		//取出缩略图并构建ImageHolder对象
		CommonsMultipartFile thumbnailFile = (CommonsMultipartFile) multipartRequest.getFile("thumbnail");
		if(thumbnailFile != null) {
			thumbnail = new ImageHolder(thumbnailFile.getOriginalFilename(), thumbnailFile.getInputStream());
		}
		//取出详情图并构建List<ImageHolder>列表对象，最多支持6张图片上传
		for(int i=0;i<IMAGEMAXCOUNT;i++) {
			CommonsMultipartFile productImgFile = (CommonsMultipartFile) multipartRequest.getFile("productImg"+i);
			if(productImgFile != null) {
				//若取出的第i个详情图片流不为空，则将其加入详情图列表
				ImageHolder productImg = new ImageHolder(productImgFile.getOriginalFilename(),productImgFile.getInputStream());
				productImgList.add(productImg);
			}else {
				//若取出的第i个图片文件流为空，则终止循环
				break;
			}
		}
		return thumbnail;
	}
}

3.前端验证

1.session中用到了currentShop，因此先访问商品管理页 http://127.0.0.1:18080/o2o/shopadmin/shopmanagement?shopId=1
2.进入商品编辑页 http://127.0.0.1:18080/o2o/shopadmin/productoperation?productId=1

问题

1对 getProductById进行调用时出错。

是因为mapper文件未将shop返回

2.更新商品失败

是因为现价拼写错误promotion_price = #{promotion_price},

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
 PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 <mapper namespace="com.csj2018.o2o.dao.ProductDao"><!-- 对应接口类名 -->
 	<resultMap id="productMap" type="com.csj2018.o2o.entity.Product">
 		<id column="product_id" property="productId" />
 		<result column="product_name" property="productName" />
 		<result column="product_desc" property="productDesc" />
 		<result column="img_addr" property="imgAddr" />
 		<result column="normal_price" property="normalPrice" />
 		<result column="promotion_price" property="promotionPrice" />
 		<result column="priority" property="priority" />
 		<result column="create_time" property="createTime" />
 		<result column="last_edit_time" property="lastEditTime" />
 		<result column="enable_status" property="enableStatus" />
 		<association property="productCategory" column="product_category_id" javaType="com.csj2018.o2o.entity.ProductCategory">
 			<id column="product_category_id" property="productCategoryId" />
 			<result column="product_category_name" property="productCategoryName" />
 		</association>
 		<association property="shop" column="shop_id" javaType="com.csj2018.o2o.entity.Shop">
 			<id column="shop_id" property="shopId" />
 			<result column="shop_id" property="shopId" />
 		</association>
 		<collection property="productImgList" column="product_id" ofType="com.csj2018.o2o.entity.ProductImg">
 			<id column="product_img_id" property="productImgId" />
 			<result column="detail_img" property="imgAddr" /><!-- 有疑问，为什么不是img_addr -->
 			<result column="img_desc" property="imgDesc" />
 			<result column="priority" property="priority" />
 			<result column="create_time" property="createTime" />
 			<result column="product_id" property="productId" />
 		</collection>
 	</resultMap>
 	<select id="queryProductById" resultMap="productMap" parameterType="long">
 		select
 		p.product_id, p.product_name, p.product_desc, p.img_addr, p.normal_price, p.promotion_price, p.priority,
 		p.create_time, p.last_edit_time, p.enable_status, p.product_category_id, p.shop_id,
 		pm.product_img_id, pm.img_addr as detail_img, pm.img_desc, pm.priority, pm.create_time
 		from tb_product p left join tb_product_img pm 
 		on p.product_id = pm.product_id
 		where p.product_id = #{productId}
 		order by pm.priority desc
 	</select>
 	<update id="updateProduct" parameterType="com.csj2018.o2o.entity.Product" keyProperty="product_id" useGeneratedKeys="true">
 		update tb_product
 		<set>
 			<if test="productName != null">product_name = #{productName},</if>
 			<if test="productDesc != null">product_desc = #{productDesc},</if>
 			<if test="imgAddr != null">img_addr = #{imgAddr},</if>
 			<if test="normalPrice != null" >normal_price = #{normalPrice},</if>
 			<if test="promotionPrice != null">promotion_price = #{promotionPrice},</if>
 			<if test="priority != null">priority = #{priority},</if>
 			<if test="lastEditTime != null">last_edit_time = #{lastEditTime},</if>
 			<if test="enableStatus != null">enable_status = #{enableStatus},</if>
 			<if test="productCategory != null and productCategory.productCategoryId != null">product_category_id = #{productCategory.productCategoryId}</if> 
 		</set>
 		where product_id = #{productId} and shop_id = #{shop.shopId}<!--shop_id = #{shop.shopId}保证了不会操作别的店铺的商品 -->
 	</update>
    <insert id="insertProduct" parameterType="com.csj2018.o2o.entity.Product" useGeneratedKeys="true" keyProperty="productId" keyColumn="product_id">
        insert into tb_product(
            product_name,product_desc,img_addr,normal_price,promotion_price,
            priority,create_time,last_edit_time,enable_status,product_category_id,shop_id
        )values(
            #{productName},#{productDesc},#{imgAddr},#{normalPrice},#{promotionPrice},
            #{priority},#{createTime},#{lastEditTime},#{enableStatus},#{productCategory.productCategoryId},#{shop.shopId}
        )
    </insert>
    
 </mapper>