public void import5(){
        //解析xlsx文件
        String path="E:\\bbox_list.xlsx";
        Map<String, List<List<String>>> columnMap = null;
        try {
            Workbook  wb = new XSSFWorkbook(new FileInputStream(new File(path)));
            Sheet  st = wb.getSheetAt(0);
            
 
if(st != null){
                columnMap = new HashMap<String, List<List<String>>>(st.getLastRowNum());//定義columnMap，存放圖及它的分類和框
                System.out.println(st.getLastRowNum());        
                System.out.println("--------------st.getLastRowNum()-------------");    
                
 
for(int i=0;i<=st.getLastRowNum();i++){
                    Row row = st.getRow(i);
                    List<List<String>> informationLists = new ArrayList<List<String>>();//定義大list
                    List<String> informationList = new ArrayList<String>();             //
 
定義小list
                    if(row != null){
                        int rows = row.getLastCellNum();//每行有6列                
                        if(rows>0){                            
                            for(int j=0;j<rows;j++){
                                Cell cell = row.getCell(j);
                                informationList.add(cell.toString());//內層小list取到每一列的值                                        
                            }
                            if(columnMap.containsKey(informationList.get(0))){//存進columnMap中；如果columnMap已經存在該圖，在它的信息上追加新list                                    
                                List<List<String>> value = columnMap.get(informationList.get(0));
                                value.add(informationList);                        
                                columnMap.put(informationList.get(0), value);
                            }else{                                            //存進columnMap中
                                informationLists.add(informationList);
                                columnMap.put(informationList.get(0), informationLists);
                            }                            
                            }
                        }
                    }
                }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            System.out.println("文件未找到.." + e.getClass().getName() + "\t 信息：" + e.getMessage());
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            System.out.println("Io異常：" + e.getClass().getName() + "\t 信息:" + e.getMessage());
            e.printStackTrace();
        }
        System.out.println(columnMap);        

        //上傳圖像並分類並帶框
        //取到文件夾下分類的所有圖片路徑,並取到圖片的MD5----------------------
         FolderUtil fu=new FolderUtil();        
         List<String> imgList=fu.refreshFileList("D:\\a", "jpg");
         int countadd=0;
         //Map<String,String> jpgnamelist = new HashMap<String,String>();//名字已存在，或者MD5已存在（不明顯），讀取原名字圖片地址，不上傳新的
         for(String imgUrl:imgList){
             String jpgname = (imgUrl.split("\\\\")[2]);//.split("\\.")[0];//取到圖片名字
             System.out.println(jpgname);              //打印圖片名字
             //取到圖片的MD5 
             File imgFile = new File(imgUrl);    
             //生成縮略圖
             InputStream in = null;
             try {
                 in = new FileInputStream(imgFile);
                 String fileMd5Name=UploadFile.getFileMD5(in);
                 if(in!=null)
                      in.close();                 
                 //上傳原圖                
                  String opath=this.upFile(imgUrl, "jpg");
                 //縮略圖
                 File simgFile=new File(imgUrl);
                 Map<String,Object> map=ImageZipUtil.zipImageFileByte(simgFile,310, 0, 1f);
                 byte[] bt = (byte[]) map.get("bt");                 
                 ByteArrayInputStream bin = new ByteArrayInputStream(bt);
                 String spath= this.upFile(bin, bt.length, "jpg");
                 System.out.println(columnMap.get(jpgname));                //打印map裏圖片對應value
                 int listcount=columnMap.get(jpgname).size();                 
                 for(int i=0;i<listcount;i++){
                     List<List<String>> outLists = columnMap.get(jpgname);//定義大list
                     List<String> inList = outLists.get(i);
                     System.out.println(inList);             //打印當前小list
                     String TypeId="";
                     System.out.println(inList.get(1));     //打印分類名
                     JSONObject obj = new JSONObject();
                     obj.put("x", Double.valueOf(inList.get(2)));
                     obj.put("y", Double.valueOf(inList.get(3)));
                     obj.put("width", Double.valueOf(inList.get(4)));
                     obj.put("height",Double.valueOf(inList.get(5)));    
                     JSONArray arrayNew=new JSONArray();
                     arrayNew.add(obj);
                     System.out.println(arrayNew);          //打印json
                     switch (inList.get(1)) {
                        case "Atelectasis":
                            //積液
                            TypeId="64c1282028484899a9e6dcff5c0a71df";
                            System.out.println("Atelectasis-------------------------");
                            break;
                        case "Cardiomegaly":
                            //皮下積氣
                            TypeId="254d4860e735438e9525981ccf814277";
                            break;
                        case "Effusion":
                            //氣胸
                            TypeId="b11665be08c34045a926671011f1ffd5";
                            break;
                        case "Infiltrate":
                            //陳舊
                            TypeId="b25b7ca9aeb5467d94279d49b24bb441";
                            break;
                        case "Mass":
                            //正常:
                            TypeId="89d1e0832a184c4f92cb233d4cd55a1f";
                            break;
                        case "Nodule":
                            //滲出
                            TypeId="9bb7e278fb3a4f75adf03c7f28f23aa4";
                            break;
                        case "Pneumonia":
                            //滲出
                            TypeId="d5d96332d1c74dddbc79b1ed9b17d9e2";
                            break;
                        case "Pneumothorax":
                            //滲出
                            TypeId="34dd7e4a16de421c8cd1d73f22f19008";
                            break;
                        default:
                            System.out.println(jpgname + " 異常位置: " + inList.get(1));
                            //return null;                     
                 }
                 TagImg  newImg=new TagImg();
                 newImg.setImgMd5(fileMd5Name);
                 newImg.setImgUrl(opath);        
                 newImg.setName(jpgname);    
                 newImg.setImgUrlThumb(spath);
                 newImg.setCreateUser("yl-921");
                 newImg.setOrgId("81dae004980145ffbd261717b49f35b6");
                 newImg.setSetId("e2bf364d87854293a374b49d2609d9c7");    
                 newImg.setTypeId(TypeId);
                 newImg.setTagFlag(1);
                 newImg.setTagJson(arrayNew.toString());        
                 //newImg.setTagJson(tagJson);
                 countadd++;
                 System.out.println(countadd);
                 tagImgService.save(newImg);   
                    }                 
                 
                 bin.close();
                 bt=null;
                 
            } catch (Exception e) {
                // TODO: handle exception
            }
          }
         System.out.println("共: "+imgList.size()+" 本次添加："+countadd);
    }

java map讀取csv文件