Java-导入Excel

导出

    private static void writer() throws IOException {        // 创建工作文档对象        Workbook wb = new XSSFWorkbook();        // 创建sheet对象        Sheet sheet1 = wb.createSheet("sheet1");        // 循环写入行数据        for (int i = 0; i < 5; i++) {            Row row = sheet1.createRow(i);            // 循环写入列数据            for (int j = 0; j < 8; j++) {                Cell cell = row.createCell(j);                cell.setCellValue("测试" + j);            }        }        OutputStream out = new FileOutputStream("C:\\Users\\aaa.xlsx");        wb.write(out);        wb.close();    }