毕设：蛋糕店系统.zip

package cn.losemen.cakemall.service; import cn.losemen.cakemall.mapper.GoodsMapper; import cn.losemen.cakemall.vo.GoodsVO; import cn.losemen.cakemall.vo.ImagesVO; import com.sun.org.apache.xpath.internal.operations.Bool; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import java.io.*; import java.util.ArrayList; import java.util.List; import java.util.Queue; import java.util.Random; /** * 商品的service层 * @author hz * @version 1.0 * @Function * @date 2020/2/13 - 18:09 */ @Service public class GoodsService { //注入 @Autowired private GoodsMapper goodsMapper; //获取首页基本的信息展示 public ArrayList<Object> getAllHomeGoods() { //获取轮播图的商品信息 ArrayList<ImagesVO> images = goodsMapper.getImages(); //获取推荐的商品信息 4个 ArrayList<GoodsVO> recommInfo = goodsMapper.getRecommInfo(); ArrayList<Object> allDate = new ArrayList<>(); allDate.add(images); allDate.add(recommInfo); return allDate; } //获取分类商品的数据 public ArrayList<GoodsVO> getKindGoods(String gk,int page){ //将页数转换为开始的条数 int start = (page-1)*20; ArrayList<GoodsVO> kindGoods = goodsMapper.getKindGoods(gk, start); return kindGoods; } //根据商品id获取商品信息 轮播图信息 public ArrayList<Object> getDetailById(int gid) { GoodsVO detailById = goodsMapper.getDetailById(gid); ArrayList<ImagesVO> imagesById = goodsMapper.getImagesById(gid); //将商品中的图片放到图片集合的第一张 String gimage = detailById.getGimage(); ImagesVO imagesVO = new ImagesVO(); imagesVO.setGid(gid); imagesVO.setIimagesrc(gimage); imagesById.add(0,imagesVO); //将两个集合放到一起 ArrayList<Object> objects = new ArrayList<>(); objects.add(detailById); objects.add(imagesById); return objects; } //修改商品 public int updGoods(GoodsVO goodsVO, List<MultipartFile> files, HttpServletRequest request){ //先修改传递的商品 int i = goodsMapper.updGoods(goodsVO); if(i == 0) { return 0;//修改失败 } //将files中的图片下载到本地中 //判断文件是否为空 if(files.isEmpty() || files.size() <= 0) { System.out.println(111); return -1; } //定义路径 图片保存的路径 String path1 = "E:\\ideaspaces\\cakemall\\src\\main\\webapp\\images\\cakeimgs"; String path2 = request.getSession().getServletContext().getRealPath("/images/cakeimgs"); //定义开关 Boolean flag = false; //遍历图片数组 for (MultipartFile file : files) { //获取文件的名字 String fname=file.getOriginalFilename(); //拼接图片的名字 //添加判断文件的名字是否有. if(fname == "") { }else { String[] splits = fname.split("\\."); //获取当前的时间戳和随机数作为文件名 long l = System.currentTimeMillis(); Random random = new Random(); int i1 = random.nextInt(10000); String filename = String.valueOf(l) + i1; //拼接得到文件的名字 String fn = filename + '.' +splits[1]; //组合路径 File ff=new File(path1,fn); File f2 = new File(path2, fn); try { //上传文件 项目内 file.transferTo(ff); //请求的文件只能上传一次 // 打开输入流 FileInputStream fis = new FileInputStream(ff); // 打开输出流 FileOutputStream fos = new FileOutputStream(f2); // 读取和写入信息 byte[] bytes = new byte[1024]; int len = 0; while ((len = fis.read(bytes)) != -1) { fos.write(bytes,0,len); } // 关闭流 fos.close(); // 后开先关 fis.close(); // 先开后关 //tomcat内 // file.transferTo(f2); //在images添加对应的图片 gid image ImagesVO imagesVO = new ImagesVO(); imagesVO.setGid(goodsVO.getGid()); //获取存储的文件名 String na = "http://localhost:8088/cakemall/images/cakeimgs/" + fn; imagesVO.setIimagesrc(na); int insimage = goodsMapper.insimage(imagesVO); //如果添加失败 修改开关 if(insimage == 0) { flag = true; } } catch (IllegalStateException | IOException e) { flag = true; } } } if(flag) { return -2; } return 1; } //修改商品 删除images中的图片 public int updGoodsImg(ImagesVO imagesVO) { //根据iid删除image return goodsMapper.delGoodsImg(imagesVO.getIid()); } //修改goods中图片 public int updGoodsImgByGid(ImagesVO imagesVO) { int re = 0; System.out.println(imagesVO); //判断传递的路径是否为空 if(imagesVO.getIimagesrc() != "") { //就直接修路改goods中的图片径 re = goodsMapper.updGimageByGid(imagesVO.getGid(),imagesVO.getIimagesrc()); if(re == 0){ return 0; } } else { //查找images表中的第一个图片路径 Boolean flat = true; while(flat) { //暂挺500毫秒 try { Thread.sleep(500); //判断是否获取值 if(goodsMapper.selFirderImage(imagesVO.getGid()) != null) { //赋值图片路径 imagesVO.setIimagesrc(goodsMapper.selFirderImage(imagesVO.getGid())); //修改goods中的图片路径 re =goodsMapper.updGimageByGid(imagesVO.getGid(),imagesVO.getIimagesrc()); if(re == 0){ return 0; } flat = false; } } catch (InterruptedException e) { e.printStackTrace(); } } } //goods中图片修改成功后 将获取图片的那个images中的图片删除 if(re != 0) { re = goodsMapper.delImagesBySrc(imagesVO.getIimagesrc()); } return re; } //删除商品 public String delGoods(int gid) { //需要删除 goods images int i = goodsMapper.delGoods(gid); if(i == 1) { //删除图片 int i1 = goodsMapper.delImages(gid); System.out.println(i1); if(i1 != 0) { //删除成功 return "删除成功"; } return "图片删除失败"; } return "删除失败"; } //增加商品 添加图片 public int addGood(GoodsVO goodsVO, List<MultipartFile> files, HttpServletRequest request) { // String[] kind={"pop","news","sell","birth","older","katong","friut","child","zhizhi","ruzhi"}; // String[] title={"悉尼之风","冰雪奇缘","巧