Case

错误原因：jar包版本更新，官方改动； 解决方法： 导入CellType包import org.apache.poi.ss.usermodel.CellType 使用CellType.STRING代替HSSFCell.CELL_TYPE_STRING if(cell==null||cell. Equals(null)||cell.getCellType()==CellType.BLANK){ value="null"; }else { //判断数据类型 switch (cell.getCellType()) { case FORMULA:value = "" + cell.getCellFormula(); break; case NUMERIC:value = "" + cell.getNumericCellValue(); break; case STRING:value = cell.getStringCellValue(); break; default: break; } } if(cell==null||cell.equals("")||cell.getCellType()==HSSFCell.CELL_TYPE_BLANK){ value="null"; }else { //判断数据类型 switch (cell.getCellType()) { case HSSFCell.CELL_TYPE_FORMULA:value = "" + cell.getCellFormula(); break; case HSSFCell.CELL_TYPE_NUMERIC:value = "" + cell.getNumericCellValue(); break; case HSSFCell.CELL_TYPE_STRING:value = cell.getStringCellValue(); break; default: break; } }