Apache POI和EasyExcel 第五集：Apache POI的Excel读取不同类型的数据
一、资源
什么是Apache POIApache POI不同类型的数据的表格（xls）链接：/s/1K4p80oBNyecXnCtwBcbRwA提取码：0916
二、代码实现
@Testpublic void testCellType() throws Exception {InputStream is = new FileInputStream(path + "会员消费商品明细表.xls");Workbook workbook = new HSSFWorkbook(is);Sheet sheet = workbook.getSheetAt(0);// 读取标题所有内容Row rowTitle = sheet.getRow(0);// 行不为空if (rowTitle != null) {// 读取cellint cellCount = rowTitle.getPhysicalNumberOfCells();for (int cellNum = 0; cellNum < cellCount; cellNum++) {Cell cell = rowTitle.getCell(cellNum);if (cell != null) {String cellValue = cell.getStringCellValue();System.out.print(cellValue + "|");}}System.out.println();}// 读取商品列表数据int rowCount = sheet.getPhysicalNumberOfRows();for (int rowNum = 1; rowNum < rowCount; rowNum++) {Row rowData = sheet.getRow(rowNum);// 行不为空if (rowData != null && rowTitle != null) {// 读取cellint cellCount = rowTitle.getPhysicalNumberOfCells();for (int cellNum = 0; cellNum < cellCount; cellNum++) {System.out.print("【" + (rowNum + 1) + "-" + (cellNum + 1) + "】");Cell cell = rowData.getCell(cellNum);if (cell != null) {int cellType = cell.getCellType();//判断单元格数据类型String cellValue = "";switch (cellType) {case HSSFCell.CELL_TYPE_STRING://字符串System.out.print("【STRING】");cellValue = cell.getStringCellValue();break;case HSSFCell.CELL_TYPE_BOOLEAN://布尔System.out.print("【BOOLEAN】");cellValue = String.valueOf(cell.getBooleanCellValue());break;case HSSFCell.CELL_TYPE_BLANK://空System.out.print("【BLANK】");break;case HSSFCell.CELL_TYPE_NUMERIC:System.out.print("【NUMERIC】");if (HSSFDateUtil.isCellDateFormatted(cell)) {// 日期System.out.print("【日期】");Date date = cell.getDateCellValue();cellValue = new DateTime(date).toString("yyyy-MM-dd");} else {// 不是日期格式，则防止当数字过长时以科学计数法显示System.out.print("【转换成字符串】");cell.setCellType(HSSFCell.CELL_TYPE_STRING);cellValue = cell.toString();}break;case Cell.CELL_TYPE_ERROR:System.out.print("【数据类型错误】");break;}System.out.println(cellValue);}}}}is.close();}
