校园商铺-8商品模块-3Shop使用ImageHolder后的重构
可以用ImageHolder封装的类对shop进行重构
1 ShopService
package com.csj2018.o2o.service;
import java.io.InputStream;
import com.csj2018.o2o.entity.Shop;
import com.csj2018.o2o.exceptions.ShopOperationException;
import com.csj2018.o2o.dto.ImageHolder;
import com.csj2018.o2o.dto.ShopExecution;
public interface ShopService {
/**
* 根据shopCondition分页返回相应店铺列表
* @param shopCondition
* @param pageIndex
* @param pageSize
* @return
*/
public ShopExecution getShopList(Shop shopCondition,int pageIndex,int pageSize);
/**
* 通过店铺ID获取店铺信息
* @param shopId
* @return
*/
Shop getByShopId(long shopId);
/**
* 更新店铺信息，包括对图片的处理
* @param shop
* @param shopImgInputStream
* @param fileName
* @return
*/
ShopExecution modifyShop(Shop shop,ImageHolder fileName) throws ShopOperationException;
/**
* 注册店铺信息，包括图片处理
* @param shop
* @param shopImgInputStream
* @param fileName
* @return
*/
ShopExecution addShop(Shop shop,ImageHolder fileName) throws ShopOperationException;
}
2 修改实现类
package com.csj2018.o2o.service.impl;
import java.io.InputStream;
import java.util.Date;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import com.csj2018.o2o.dao.ShopDao;
import com.csj2018.o2o.dto.ImageHolder;
import com.csj2018.o2o.dto.ShopExecution;
import com.csj2018.o2o.entity.Shop;
import com.csj2018.o2o.enums.ShopStateEnum;
import com.csj2018.o2o.exceptions.ShopOperationException;
import com.csj2018.o2o.service.ShopService;
import com.csj2018.o2o.util.ImageUtil;
import com.csj2018.o2o.util.PageCalculator;
import com.csj2018.o2o.util.PathUtil;
@Service
public class ShopServiceImpl implements ShopService {
private Logger logger = LoggerFactory.getLogger(ShopServiceImpl.class);
@Autowired
private ShopDao shopDao;
@Override
public ShopExecution getShopList(Shop shopCondition,int pageIndex,int pageSize) {
int rowIndex = PageCalculator.calculatorRowIndex(pageIndex, pageSize);
List<Shop> shopList = shopDao.queryShopList(shopCondition, rowIndex, pageSize);
int count = shopDao.queryShopCount(shopCondition);
ShopExecution se = new ShopExecution();
if(shopList != null) {
se.setShopList(shopList);
se.setCount(count);
}else {
se.setState(ShopStateEnum.INNER_ERROR.getState());
}
return se;
}
@Override
@Transactional
public ShopExecution addShop(Shop shop, ImageHolder thumbnail) {
// 控制判断，shop是不是包含必需的值
if (shop == null) {
logger.warn("shop== null");
return new ShopExecution(ShopStateEnum.NUll_SHOP);
}
// 增加对Shop其他引入类非空的判断
try {
// 给店铺信息赋初始值
shop.setEnableStatus(0);
shop.setCreateTime(new Date());
shop.setLastEditTime(new Date());
// 添加店铺信息
int effectedNum = shopDao.insertShop(shop);
logger.warn("添加结果：" + effectedNum + "shopId:" + shop.getShopId());
if (effectedNum <= 0) {
throw new ShopOperationException("店铺创建失败");
} else {
if (thumbnail.getImage() != null) {
// 存储图片
try {
addShopImage(shop, thumbnail);
} catch (Exception e) {
throw new ShopOperationException("addShopImg error:" + e.getMessage());
}
// 更新店铺的图片信息
effectedNum = shopDao.updateShop(shop);
if (effectedNum <= 0) {
throw new ShopOperationException("更新图片地址失败");
}
}
}
} catch (Exception e) {
throw new ShopOperationException("addShop error:" + e.getMessage());
}
return new ShopExecution(ShopStateEnum.CHECK, shop);
}
private void addShopImage(Shop shop, ImageHolder thumbnail) {
// 获取shop图片目录的相对路径
String dest = PathUtil.getShopImagePath(shop.getShopId());
String shopImgAddr = ImageUtil.generateThumbnail(thumbnail, dest);
shop.setShopImg(shopImgAddr);
}
@Override
public Shop getByShopId(long shopId) {
return shopDao.queryByShopId(shopId);
}
@Override
public ShopExecution modifyShop(Shop shop, ImageHolder thumbnail)
throws ShopOperationException {
if (shop == null || shop.getShopId() == null) {
return new ShopExecution(ShopStateEnum.NUll_SHOP);
} else {
try {
// 1.判断是否需要处理图片
if (thumbnail.getImage() != null && thumbnail.getImageName() != null && !"".equals(thumbnail.getImageName())) {
Shop tempShop = shopDao.queryByShopId(shop.getShopId());
if (tempShop.getShopImg() != null) {
//编写工具类，删除图片信息
ImageUtil.deleteFileOfPath(tempShop.getShopImg());
}
addShopImage(shop, thumbnail);
}
// 2.更新店铺信息
shop.setLastEditTime(new Date());
int effectedNum = shopDao.updateShop(shop);
if (effectedNum <= 0) {
return new ShopExecution(ShopStateEnum.INNER_ERROR);
} else {
shop = shopDao.queryByShopId(shop.getShopId());
return new ShopExecution(ShopStateEnum.SUCCESS, shop);
}
} catch (Exception e) {
throw new ShopOperationException("modifyShop error:" + e.getMessage());
}
}
}
}
3 修改controller层
package com.csj2018.o2o.web.shopadmin;
import java.io.File;
import java.io.FileOutputStream;
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 java.io.InputStream;
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.ResponseBody;
import org.springframework.web.multipart.MultipartHttpServletRequest;
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.ShopExecution;
import com.csj2018.o2o.entity.Area;
import com.csj2018.o2o.entity.PersonInfo;
import com.csj2018.o2o.entity.Shop;
import com.csj2018.o2o.entity.ShopCategory;
import com.csj2018.o2o.enums.ShopStateEnum;
import com.csj2018.o2o.exceptions.ShopOperationException;
import com.csj2018.o2o.service.AreaService;
import com.csj2018.o2o.service.ShopCategoryService;
import com.csj2018.o2o.service.ShopService;
import com.csj2018.o2o.util.CodeUtil;
import com.csj2018.o2o.util.HttpServletRequestUtil;
import com.csj2018.o2o.util.ImageUtil;
import com.csj2018.o2o.util.PathUtil;
import com.fasterxml.jackson.databind.ObjectMapper;
// 首先在Controller里面定义了SpringMVC相关的标签，这个标签包含了Controller的访问路径以及registerregisterShop方法的访问路径，
@Controller
@RequestMapping("/shopadmin")
public class ShopManagerController {
// 同时给它在执行的时候通过Spring容器注入之前实现好的ShopService实现类，用来提供addShop的服务。
@Autowired
private ShopService shopService;
@Autowired
private ShopCategoryService shopCategoryService;
@Autowired
private AreaService areaService;
//6-7新增
@RequestMapping(value="/getshopmanagementinfo",method=RequestMethod.GET)
@ResponseBody
private Map<String,Object> getShopManagementInfo(HttpServletRequest request){
Map<String,Object> modelMap = new HashMap<String,Object>();
long shopId = HttpServletRequestUtil.getLong(request, "shopId");
if(shopId <= 0) {
Object currentShopObj = request.getSession().getAttribute("currentShop");
if(currentShopObj == null) {
modelMap.put("redirect",true);
modelMap.put("url","/o2o/shopadmin/shoplist");
}else {
Shop currentShop = (Shop) currentShopObj;
modelMap.put("redirect", false);
modelMap.put("shopId",currentShop.getShopId());
}
}else {
Shop currentShop = new Shop();
currentShop.setShopId(shopId);
request.getSession().setAttribute("currentShop", currentShop);
modelMap.put("redirect", false);
}
return modelMap;
}
@RequestMapping(value="/getshoplist",method=RequestMethod.GET)
@ResponseBody
public Map<String,Object> getShopList(HttpServletRequest request){
Map<String,Object> modelMap = new HashMap<>();
//确保user不为空
PersonInfo user = new PersonInfo();
user.setUserId(1L);
user.setName("test");
request.getSession().setAttribute("user", user);
user = (PersonInfo) request.getSession().getAttribute("user");
try {
Shop shopCondition = new Shop();
shopCondition.setOwner(user);
ShopExecution se = shopService.getShopList(shopCondition, 0, 100);
modelMap.put("shopList", se.getShopList());
modelMap.put("user", user);
modelMap.put("success", true);
}catch (Exception e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
}
return modelMap;
}
@RequestMapping(value="/getshopbyid",method=RequestMethod.GET)
@ResponseBody
private Map<String,Object> getShopById(HttpServletRequest request){
Map<String,Object> modelMap = new HashMap<String,Object>();
Long shopId = HttpServletRequestUtil.getLong(request, "shopid");
if(shopId > -1) {
try {
Shop shop = shopService.getByShopId(shopId);
List<Area> areaList = areaService.getAreaList();
modelMap.put("shop", shop);
modelMap.put("areaList", areaList);
modelMap.put("success", true);
}catch (Exception e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.toString());
}
}else {
modelMap.put("success", false);
modelMap.put("errMsg", "empty shopId");
}
return modelMap;
}
@RequestMapping(value = "getshopinitinfo",method = RequestMethod.GET)
@ResponseBody
private Map<String,Object> getShopInitInfo(HttpServletRequest request){
Map<String,Object> modelMap = new HashMap<String,Object>();
List<ShopCategory> shopCategoryList = new ArrayList<ShopCategory>();
List<Area> areaList = new ArrayList<Area>();
try {
shopCategoryList = shopCategoryService.getShopCategoryList(new ShopCategory());
areaList = areaService.getAreaList();
modelMap.put("shopCategoryList", shopCategoryList);
modelMap.put("areaList", areaList);
modelMap.put("success",true);
}catch(Exception e) {
modelMap.put("success",false);
modelMap.put("errMsg", e.getMessage());
}
return modelMap;
}
@RequestMapping(value = "/registershop", method = RequestMethod.POST)
@ResponseBody
private Map<String, Object> registerShop(HttpServletRequest request) {
Map<String, Object> modelMap = new HashMap<String, Object>();
//1.验证码校验
if(!CodeUtil.checkVerifyCode(request)) {
modelMap.put("success", "false");
modelMap.put("message", "输入了错误的验证码");
return modelMap;
}
//2.获取请求头的店铺信息 接收从前台传递的shopStr对象，将这个对象转换成Shop实体类
String shopStr = HttpServletRequestUtil.getString(request, "shopStr");
ObjectMapper mapper = new ObjectMapper();
Shop shop = null;
try {
shop = mapper.readValue(shopStr, Shop.class);
} catch (Exception e) {
modelMap.put("success", false);
modelMap.put("errMeg", e.getMessage());
return modelMap;
}
// 3.获取图片 将请求中的文件流从CommonsMultipartResolver解析为CommonsMultipartFile
CommonsMultipartFile shopImg = null;
CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver(
request.getSession().getServletContext());
if (commonsMultipartResolver.isMultipart(request)) {
MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;
shopImg = (CommonsMultipartFile) multipartHttpServletRequest.getFile("shopImg");
} else {
modelMap.put("success", false);
modelMap.put("errMsg", "上传图片不能为空");
return modelMap;
}
// 4.注册店铺
if (shop != null && shopImg != null) {
/*
* 添加Session
* 注册店铺或对店铺做操作，是需要登陆的
*/
PersonInfo owner = new PersonInfo();
owner.setUserId(1L);
request.getSession().setAttribute("user", owner);
PersonInfo owner2 = (PersonInfo) request.getSession().getAttribute("user");
shop.setOwner(owner2);
/*
* 由于addShop的第二个参数是File类型的，而传入的ShopImg是CommonsMultipartFile这样的一个类型，因此需要将CommonsMultipartFile转换成File类型
File shopImgFile = new File(PathUtil.getImgBasePath() + ImageUtil.getRandomFileName());
try {
shopImgFile.createNewFile();
} catch (IOException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
return modelMap;
}
try {
inputStreamToFile(shopImg.getInputStream(), shopImgFile);
} catch (Exception e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
return modelMap;
}
*/
ShopExecution se;
try {
ImageHolder imageHolder = new ImageHolder(shopImg.getOriginalFilename(),shopImg.getInputStream());
se = shopService.addShop(shop, imageHolder);
if (se.getState() == ShopStateEnum.CHECK.getState()) {
/*
* 在店铺添加完成后，还需要做Session的操作。用户和店铺的关系是一对多的，即一个owner能够创建多个店铺。
* 因此需要在Session里面保存一个店铺列表来显示用户可以操作的店铺。
*/
@SuppressWarnings("unchecked")
List<Shop> shopList = (List<Shop>) request.getSession().getAttribute("shopList");
if(shopList == null || shopList.size() == 0) {
shopList = new ArrayList<Shop>();
}
shopList.add(se.getShop());
request.getSession().setAttribute("shopList", shopList);
modelMap.put("success", true);
} else {
modelMap.put("success", false);
modelMap.put("errMsg", se.getStateInfo());
}
}catch (ShopOperationException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
}catch (IOException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
}
return modelMap;
} else {
modelMap.put("success", false);
modelMap.put("errMsg", "请输入店铺信息");
return modelMap;
}
}
@RequestMapping(value = "/modifyshop", method = RequestMethod.POST)
@ResponseBody
private Map<String, Object> modifyShop(HttpServletRequest request) {
Map<String, Object> modelMap = new HashMap<String, Object>();
//1.验证码校验
if(!CodeUtil.checkVerifyCode(request)) {
modelMap.put("success", "false");
modelMap.put("message", "输入了错误的验证码");
return modelMap;
}
//2.获取请求头的店铺信息 接收从前台传递的shopStr对象，将这个对象转换成Shop实体类
String shopStr = HttpServletRequestUtil.getString(request, "shopStr");
ObjectMapper mapper = new ObjectMapper();
Shop shop = null;
try {
shop = mapper.readValue(shopStr, Shop.class);
} catch (Exception e) {
modelMap.put("success", false);
modelMap.put("errMeg", e.getMessage());
return modelMap;
}
// 3.获取图片 将请求中的文件流从CommonsMultipartResolver解析为CommonsMultipartFile
CommonsMultipartFile shopImg = null;
CommonsMultipartResolver commonsMultipartResolver = new CommonsMultipartResolver(
request.getSession().getServletContext());
if (commonsMultipartResolver.isMultipart(request)) {
MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest) request;
shopImg = (CommonsMultipartFile) multipartHttpServletRequest.getFile("shopImg");
}
// 2.修改店铺
if (shop != null && shop.getShopId() != null) {
//由于图片是可上传、可不上传的，因此图片非空判断去除；取而代之确保shopId不为空
//修改店铺信息不用从session获取用户信息
PersonInfo owner = new PersonInfo();
// 预期从Session获取，目前自定义，以后完善
owner.setUserId(1L);
shop.setOwner(owner);
// 由于addShop的第二个参数是File类型的，而传入的ShopImg是CommonsMultipartFile这样的一个类型，因此需要将CommonsMultipartFile转换成File类型
/*
* 这块代码，教程没有
File shopImgFile = new File(PathUtil.getImgBasePath() + ImageUtil.getRandomFileName());
try {
shopImgFile.createNewFile();
} catch (IOException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
return modelMap;
}
try {
inputStreamToFile(shopImg.getInputStream(), shopImgFile);
} catch (Exception e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
return modelMap;
}
*/
ShopExecution se;
try {
if(shopImg == null) {
se = shopService.modifyShop(shop, null);
}else {
ImageHolder imageHolder = new ImageHolder(shopImg.getOriginalFilename(),shopImg.getInputStream());
se = shopService.modifyShop(shop, imageHolder);
}
if (se.getState() == ShopStateEnum.SUCCESS.getState()) {
modelMap.put("success", true);
} else {
modelMap.put("success", false);
modelMap.put("errMsg", se.getStateInfo());
}
}catch(ShopOperationException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
} catch (IOException e) {
modelMap.put("success", false);
modelMap.put("errMsg", e.getMessage());
}
return modelMap;
} else {
modelMap.put("success", false);
modelMap.put("errMsg", "请输入店铺Id");
return modelMap;
}
}
private static void inputStreamToFile(InputStream inputStream, File file) {
FileOutputStream os = null;
try {
os = new FileOutputStream(file);
int bytesRead = 0;
byte[] buffer = new byte[1024];
while ((bytesRead = inputStream.read(buffer)) > 0) {
os.write(buffer, 0, bytesRead);
}
} catch (Exception e) {
throw new RuntimeException("调用inputStreamToFile产生异常：" + e.getMessage());
} finally {
try {
if (os != null) {
os.close();
}
if (inputStream != null) {
inputStream.close();
}
} catch (IOException e) {
throw new RuntimeException("调用inputStreamToFile产生异常：" + e.getMessage());
}
}
}
}
4.修改测试类
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.InputStream;
import java.util.Date;
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.ShopExecution;
import com.csj2018.o2o.entity.Area;
import com.csj2018.o2o.entity.PersonInfo;
import com.csj2018.o2o.entity.Shop;
import com.csj2018.o2o.entity.ShopCategory;
import com.csj2018.o2o.enums.ShopStateEnum;
import com.csj2018.o2o.exceptions.ShopOperationException;
public class ShopServiceTest extends BaseTest{
@Autowired
private ShopService shopService;
@Test
@Ignore
public void testGetShopList() {
Shop shopCondition = new Shop();
ShopCategory sc = new ShopCategory();
sc.setShopCategoryId(1L);
shopCondition.setShopCategory(sc);
ShopExecution se = shopService.getShopList(shopCondition, 1, 5);
System.out.println("店铺列表总数："+se.getShopList().size());
System.out.println("店铺总数为："+se.getCount());
}
@Test
@Ignore
public void testModifyShop() throws ShopOperationException,FileNotFoundException{
Shop shop = new Shop();
shop.setShopId(1L);
shop.setShopName("修改后的店铺名称");
// File shopImg = new File("/Users/chenshanju/Downloads/liuchuanfeng.jpeg");
InputStream is = new FileInputStream("/Users/chenshanju/Downloads/liuchuanfeng.jpeg");
ImageHolder imageHolder = new ImageHolder("流川枫.jpeg",is);
ShopExecution shopExecution = shopService.modifyShop(shop, imageHolder );
System.out.println("新的图片地址："+shopExecution.getShop().getShopImg());
}
@Test
public void testAddShop() throws FileNotFoundException {
Shop shop = new Shop();
PersonInfo owner = new PersonInfo();
Area area = new Area();
ShopCategory shopCategory = new ShopCategory();
owner.setUserId(1L);
area.setAreaId(2);
shopCategory.setShopCategoryId(1L);
shop.setOwner(owner);
shop.setArea(area);
shop.setShopCategory(shopCategory);
shop.setShopName("测试de店铺4");
shop.setShopDesc("店铺描述4");
shop.setShopAddr("测试路4号1");
shop.setPhone("1234567892");
shop.setPriority(4);
shop.setCreateTime(new Date());
shop.setEnableStatus(ShopStateEnum.CHECK.getState());
shop.setAdvice("审核中");
File shopImg = new File("/Users/chenshanju/Downloads/cat.jpg");
InputStream is = new FileInputStream(shopImg);
ImageHolder imageHolder = new ImageHolder(shopImg.getName(),is);
ShopExecution se = shopService.addShop(shop, imageHolder);
assertEquals(ShopStateEnum.CHECK.getState(), se.getState());
}
}
