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  • Java 读取excel 文件流

    public static void initType(String path) {

    try {

    //1 获取excel文件流 excel xls 文件 暂不支持xlsx
    if (path.contains("xlsx") || path.contains("XLSX")) {
    System.err.println("请使用xls格式文件");
    return;
    }
    InputStream inputStream = new FileInputStream(path);
    POIFSFileSystem fileSystem = new POIFSFileSystem(inputStream);
    HSSFWorkbook workbook = new HSSFWorkbook(fileSystem);
    //2 获取sheet 列数
    int sheets = workbook.getNumberOfSheets();
    //3 遍历所有sheet列
    for (int i = 0; i < sheets; i++) {
    //获取sheet
    HSSFSheet sheet = workbook.getSheetAt(i);
    //读取第一行
    HSSFRow headerRow = sheet.getRow(0);
    //获取sheet 所有行数
    int rows = sheet.getPhysicalNumberOfRows();
    List<String> headerColumns = new ArrayList<>();
    for (int j = 0; j < headerRow.getPhysicalNumberOfCells(); j++) {
    HSSFCell cell = headerRow.getCell(j);
    cell.getStringCellValue();
    headerColumns.add(cell.getStringCellValue());
    }
    //获取类型
    HSSFRow secondRow = sheet.getRow(1);

    int cells = secondRow.getPhysicalNumberOfCells();

    //对第二行的数据进行操作
    for (int j = 1; j < rows; j++) {
    HSSFRow row = sheet.getRow(j);
    List<String> cellsValue = new ArrayList<>();
    //获取字段属性
    for (int k = 2; k < cells; k++) {
    cellsValue.add(row.getCell(k).getStringCellValue());
    }


    }


    }

    }
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  • 原文地址:https://www.cnblogs.com/woshuaile/p/10564933.html
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