/**     * 根据shopId获取shop信息     * @param shopId     * @return     */    public Shop getShopByShopId(long shopId);    /**     * 更新店铺的信息，包括对店铺照片的处理     * @param shop     * @param shopImg     * @return     */    public ShopExecution modifyShop(Shop shop, CommonsMultipartFile shopImg);

　

serviceImpl实现

　

@Override    public Shop getShopByShopId(long shopId) {        return shopDao.queryByShopId( shopId );    }    @Override    public ShopExecution modifyShop(Shop shop, CommonsMultipartFile shopImg) {        if(shop == null || shop.getShopId() == null){            return new ShopExecution(ShopStateEnum.NULL_SHOP);        } else{            try{                //1.判断是否需要修改图片                if(shopImg != null){                    Shop tempShop = shopDao.queryByShopId( shop.getShopId() );                    //判断之前的店铺信息中是否有shop图片，如果有的话，就先删除，没有的话，就直接加进去                    if(tempShop != null){                        ImageUtil.deleteFileOrPath( tempShop.getShopImg() );                    }                    addShopImg( shop, shopImg );                }                //2.更新店铺信息                shop.setLastEditTime( new Date(  ) );                int effectNum = shopDao.updateShop( shop );                if(effectNum <= 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());            }        }    }

　　

工具类ImageUtil中新增的delete

/**     *storePath是文件路径  或  目录路径     * 如果storePath是文件路径，则删除文件     * 如果storePath是目录路径，则删除该目录下的所有文件     * @param storePath     */    public static void deleteFileOrPath(String storePath){       File fileOrPath = new File(PathUtil.getImgBasePath() + storePath);       if(fileOrPath.exists()){           if(fileOrPath.isDirectory()){               File files[] = fileOrPath.listFiles();               for(File file : files){                   file.delete();               }           }           fileOrPath.delete();       }    }

　　

controller层的实现

其中，修改店铺信息的代码与注册店铺信息的代码相似

 

/**     * 根据店铺信息获取店铺     * @param request     * @return     */    @RequestMapping(value="/getshopbyid", method=RequestMethod.GET)    @ResponseBody    private Map
     
       getShopById(HttpServletRequest request){        Map
      
        modelMap = new HashMap<>();        Long shopId = HttpServletRequestUtil.getLong( request, "shopId" );        if(shopId > -1){            try{                Shop shop = shopService.getShopByShopId( shopId );                List
        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;    }    /**     * 修改店铺信息     * @param request     * @return     */        @RequestMapping(value="/modifyshop", method= RequestMethod.POST )    @ResponseBody    public Map
       
         modifyShop(HttpServletRequest request){        Map
        
          modelMap = new HashMap<>();        //判断验证码是否正确        if(!CodeUtil.checkVerifyCode(request)){            modelMap.put( "success", false );            modelMap.put( "errMsg", "验证码错误!!!!!" );            return modelMap;        }        //1.接收并转化相应的参数，包括店铺信息和图片信息        String shopStr = HttpServletRequestUtil.getString( request, "shopStr" );        ObjectMapper mapper = new ObjectMapper(); // create once, reuse        Shop shop = null;        try {            shop = mapper.readValue(shopStr, Shop.class);        } catch (IOException e) {            modelMap.put("success", false);            modelMap.put("errMsg", e.getMessage());            return modelMap;        }        CommonsMultipartFile shopImg = null;        //在本次会话的上下文获取上传的文件        CommonsMultipartResolver commonsMultipartResolver =                new CommonsMultipartResolver(request.getSession().getServletContext());        //如果文件上传的有值        if(commonsMultipartResolver.isMultipart( request )){            MultipartHttpServletRequest multipartHttpServletRequest = (MultipartHttpServletRequest)request;            shopImg = (CommonsMultipartFile)multipartHttpServletRequest.getFile("shopImg");        }        //2.注册店铺        if(shop != null && shop.getShopId() != null){            try{                ShopExecution shopExecution = shopService.modifyShop(shop, shopImg);                if(shopExecution.getState() == ShopStateEnum.SUCCESS.getState()){                    modelMap.put( "success", true );                }else{                    modelMap.put( "success", false );                    modelMap.put( "errMsg",  shopExecution.getStateInfo());                }            } catch(RuntimeException e){                modelMap.put("success", false);                modelMap.put("errMsg", e.toString());            }        }else{            modelMap.put("success", false);            modelMap.put("errMsg", "请输入店铺Id");        }        //3.返回结果        return modelMap;    }