简单读取Excel表

try {
            //创建工作簿对象
            XSSFWorkbook xssfWorkbook = null;
            xssfWorkbook = new XSSFWorkbook(new FileInputStream("/Users/xinhuazhiyun/Desktop/经销商对应的大区.xlsx"));
            Map result = new HashMap<>();
            //获取工作簿下sheet的个数
            int sheetNum = xssfWorkbook.getNumberOfSheets();
            System.out.println("该excel文件中总共有：" + sheetNum + "个sheet");
            //遍历工作簿中的所有数据
            for (int i = 0; i < sheetNum; i++) {
                //读取第i个工作表
                System.out.println("读取第" + (i + 1) + "个sheet");
                XSSFSheet sheet = xssfWorkbook.getSheetAt(i);
                //获取最后一行的num，即总行数。此处从0开始
                int maxRow = sheet.getLastRowNum();
                for (int row = 0; row <= maxRow; row++) {
                    //获取最后单元格num，即总单元格数 ***注意：此处从1开始计数***
                    int maxRol = sheet.getRow(row).getLastCellNum();
                    System.out.println("--------第" + row + "行的数据如下--------");
                    for (int rol = 0; rol < maxRol; rol++) {
                        System.out.print(sheet.getRow(row).getCell(rol) + "  ");
                    }
                    System.out.println();
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }