1-500,501-1000,1001-1500,每500个文件一个文件夹的算法

for(List<TCComponentDataset> allDataSetList : allDataSetsList) {
    for(int index=0;index<allDataSetList.size();index++) {
        int number = index + 1;
        waitingDialog.getContent().setText("共有"+dataSetSize+"个数据集需要导出，正在导出第"+number+"个数据集...");
        TCComponentDataset dataSetIndex = allDataSetList.get(index);
        String dataSetName = dataSetIndex.getProperty("object_name");
        int num = index / 500;
        String folderName = (1+(num*500)) + "-" + ((num+1) * 500);
        String folderPath = path + "\\"+folderName;
        File folderFile = new File(folderPath);
        if(!folderFile.exists()) {
            folderFile.mkdir();
        }
        String newFileName = folderPath + "\\" + dataSetName;
        File destFile = new File(newFileName);
        File srcFile = HFDatasetUtil.getInstance().getFile(dataSetIndex,errorSb);
        if(srcFile != null) {
            FileUtils.copyFile(srcFile, destFile);
        }
    }
}

　　核心代码：

for(int index=0;index<allDataSetList.size();index++) {
    int num = index / 500;
    String folderName = (1+(num*500)) + "-" + ((num+1) * 500);
    String folderPath = path + "\\"+folderName;
    if(!folderFile.exists()) {
        folderFile.mkdir();
    }
}