springboot +easyExcel +多线程 实现批量导入

 @Override
    public CommonResultVo mximport(String date, MultipartFile[] files) {
        List errorTableNames = new ArrayList<>();
        List> listenerList = getListenerList(date, files);
        if (listenerList.size() <= 0) {
            return CommonResultVo.error("203", "文件名不匹配!");
        }
        ThreadPoolExecutor fixedThreadPool = (ThreadPoolExecutor) Executors.newFixedThreadPool(files.length);
        fixedThreadPool.setCorePoolSize(Runtime.getRuntime().availableProcessors() + 1);
        for (int i = 0; i < files.length; i++) {
            final MultipartFile theFile = files[i];
            final int j = i;
            final String tableName = String.valueOf(listenerList.get(j).get(2));
            final String tableCName = String.valueOf(listenerList.get(j).get(3));
            fixedThreadPool.execute(new Runnable() {
                @Override
                public void run() {
                    DefaultTransactionDefinition def = new DefaultTransactionDefinition();
                    def.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED);
                    PlatformTransactionManager txManager = SpringUtil.getBean(PlatformTransactionManager.class);
                    TransactionStatus status = txManager.getTransaction(def);
                    try {
                        //上传留痕excel文件
                        String dir = System.getProperty("user.dir") + "/upload/rhzg/importFile/" + TimeUtil.timestamp(new Date());
                        MyExcelUtil.fileUpload(theFile, dir);
                        //获取已上传的文件
                        File uploadFile = new File(dir + "/" + theFile.getOriginalFilename());
                        FileInputStream fileInputStream = null;
                        fileInputStream = new FileInputStream(uploadFile);
                        MultipartFile file = new MockMultipartFile(uploadFile.getName(), uploadFile.getName(), ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
                       XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
					   //此处写导入的相关业务
					   XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
					   
					   //提交事务
                        txManager.commit(status);
                    } catch (Exception e) {
                        String errorMessage = e.getMessage();
                        log.info("导入[" + tableName + "]失败:" + errorMessage);
                        if (errorMessage.contains(":")) {
                            errorTableNames.add(tableCName + errorMessage.split(":")[1]);
                        } else {
                            errorTableNames.add(tableCName + errorMessage);
                        }
						//事务回滚
                        txManager.rollback(status);
                    }
                }
            });
        }
        fixedThreadPool.shutdown();
        while (true) {
            if (fixedThreadPool.isTerminated()) {
                break;
            }
        }
        if (errorTableNames != null && errorTableNames.size() > 0) {
            log.info("文件异常:" + errorTableNames);
            return CommonResultVo.error("文件异常:" + errorTableNames);
        }
        return CommonResultVo.success("导入成功");
    }