如何在安卓系统中使用AsyncHttpClient下载和读取Excel文件

implementation 'com.loopj.android:android-async-http:1.4.9'

String excelUrl = "http://example.com/excel.xls";
String savePath = "/sdcard/excel.xls";

AsyncHttpClient client = new AsyncHttpClient();
client.get(excelUrl, new FileAsyncHttpResponseHandler(new File(savePath)) {
    @Override
    public void onSuccess(int statusCode, Header[] headers, File response) {
        // 下载成功，可以在这里进行Excel文件的读取操作
    }

    @Override
    public void onFailure(int statusCode, Header[] headers, Throwable throwable, File file) {
        // 下载失败，可以在这里处理错误情况
    }
});

try {
    FileInputStream file = new FileInputStream(new File(savePath));
    Workbook workbook = new HSSFWorkbook(file); // 如果是xlsx格式的文件，使用XSSFWorkbook

    Sheet sheet = workbook.getSheetAt(0); // 获取第一个工作表
    Iterator<Row> rowIterator = sheet.iterator();

    while (rowIterator.hasNext()) {
        Row row = rowIterator.next();
        Iterator<Cell> cellIterator = row.cellIterator();

        while (cellIterator.hasNext()) {
            Cell cell = cellIterator.next();
            String cellValue = cell.getStringCellValue();
            // 处理单元格数据
        }
    }

    file.close();
} catch (IOException e) {
    e.printStackTrace();
}