将list按指定大小等分，最后多余的单独一份

//将list按blockSize大小等分，最后多余的单独一份
	public static <T> List<List<T>> subList(List<T> list, int blockSize) {
		List<List<T>> lists = new ArrayList<List<T>>();
		if (list != null && blockSize > 0) {
			int listSize = list.size();
			if(listSize<=blockSize){
				lists.add(list);
				return lists;
			}
			int batchSize = listSize / blockSize;
			int remain = listSize % blockSize;
			for (int i = 0; i < batchSize; i++) {
				int fromIndex = i * blockSize;
				int toIndex = fromIndex + blockSize;
				System.out.println("fromIndex=" + fromIndex + ", toIndex=" + toIndex);
				lists.add(list.subList(fromIndex, toIndex));
			}
			if(remain>0){
				System.out.println("fromIndex=" + (listSize-remain) + ", toIndex=" + (listSize));
				lists.add(list.subList(listSize-remain, listSize));
			}
		}
		return lists;
	}