poi解析excle文件（xls，xlsx）

解析xls文件

/**
     * 解析xls文件
     *
     * @param path 文件路径
     * @throws Exception
     */
    public static void showXls(String path) throws Exception {
        HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream(new File(path)));
        HSSFSheet sheet = null;
        for (int i = 0; i < workbook.getNumberOfSheets(); i++) {// 获取每个Sheet表
            sheet = workbook.getSheetAt(i);
            for (int j = 0; j < sheet.getLastRowNum() + 1; j++) {// getLastRowNum，获取最后一行的行标
                HSSFRow row = sheet.getRow(j);
                if (row != null) {
                    for (int k = 0; k < row.getLastCellNum(); k++) {// getLastCellNum，是获取最后一个不为空的列是第几个
                        if (row.getCell(k) != null) { // getCell 获取单元格数据
                            System.out.print(row.getCell(k) + "\t");
                        } else {
                            System.out.print("\t");
                        }
                    }
                }
                System.out.println(""); // 读完一行后换行
            }
            System.out.println("读取sheet表：" + workbook.getSheetName(i) + " 完成");
        }
    }

　　解析xlsx文件

/**
     * 解析xlsx文件
     *
     * @param path 文件路径
     * @throws Exception
     */
    public static void showXlsx(String path) throws Exception {
        File excelFile = new File(path);
        XSSFWorkbook wb = new XSSFWorkbook(new FileInputStream(excelFile));
        XSSFSheet sheet = wb.getSheetAt(0);
        for (int i = 0; i < wb.getNumberOfSheets(); i++) {// 获取每个Sheet表
            sheet = wb.getSheetAt(i);
            for (int j = 0; j < sheet.getLastRowNum() + 1; j++) {// getLastRowNum，获取最后一行的行标
                XSSFRow row = sheet.getRow(j);
                if (row != null) {
                    for (int k = 0; k < row.getLastCellNum(); k++) {// getLastCellNum，是获取最后一个不为空的列是第几个
                        if (row.getCell(k) != null) { // getCell 获取单元格数据
                            System.out.print(row.getCell(k) + "\t");
                        } else {
                            System.out.print("\t");
                        }
                    }
                }
                System.out.println(""); // 读完一行后换行
            }
            System.out.println("读取sheet表：" + wb.getSheetName(i) + " 完成");
        }
    }

　　解析xls和xlsx文件

/**
     * 解析xls和xlsx文件
     *
     * @param path 文件路径
     * @throws Exception
     */
    public static void showExcel(String path) throws Exception {
        String fileType = path.substring(path.lastIndexOf(".") + 1, path.length());
        Workbook wb = null;
        if ("xls".equals(fileType)) {
            wb = new HSSFWorkbook(new FileInputStream(new File(path)));
        } else {
            wb = new XSSFWorkbook(new FileInputStream(path));
        }
        Sheet sheet = null;
        for (int i = 0; i < wb.getNumberOfSheets(); i++) {// 获取每个Sheet表
            sheet = wb.getSheetAt(i);
            for (int j = 0; j < sheet.getLastRowNum() + 1; j++) {// getLastRowNum，获取最后一行的行标
                Row row = sheet.getRow(j);
                if (row != null) {
                    for (int k = 0; k < row.getLastCellNum(); k++) {// getLastCellNum，是获取最后一个不为空的列是第几个
                        if (row.getCell(k) != null) { // getCell 获取单元格数据
                            System.out.print(row.getCell(k) + "\t");
                        } else {
                            System.out.print("\t");
                        }
                    }
                }
                System.out.println(""); // 读完一行后换行
            }
            System.out.println("读取sheet表：" + wb.getSheetName(i) + " 完成");
        }
    }

　　

main方法

 public static void main(String[] args) throws Exception {
    showExcel("E:\\upload\\测试.xls");
 }