用到的Excel文件:
XlsMain .java 类
//该类有main方法,主要负责运行程序,同时该类中也包含了用poi读取Excel(2003版)
- import java.io.FileInputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.util.ArrayList;
- import java.util.List;
- import org.apache.poi.hssf.usermodel.HSSFCell;
- import org.apache.poi.hssf.usermodel.HSSFRow;
- import org.apache.poi.hssf.usermodel.HSSFSheet;
- import org.apache.poi.hssf.usermodel.HSSFWorkbook;
- /**
- *
- * @author Hongten</br>
- *
- * 参考地址:http://hao0610.iteye.com/blog/1160678
- *
- */
- public class XlsMain {
- public static void main(String[] args) throws IOException {
- XlsMain xlsMain = new XlsMain();
- XlsDto xls = null;
- List<XlsDto> list = xlsMain.readXls();
- try {
- XlsDto2Excel.xlsDto2Excel(list);
- } catch (Exception e) {
- e.printStackTrace();
- }
- for (int i = 0; i < list.size(); i++) {
- xls = (XlsDto) list.get(i);
- System.out.println(xls.getXh() + " " + xls.getXm() + " "
- + xls.getYxsmc() + " " + xls.getKcm() + " "
- + xls.getCj());
- }
- }
- /**
- * 读取xls文件内容
- *
- * @return List<XlsDto>对象
- * @throws IOException
- * 输入/输出(i/o)异常
- */
- private List<XlsDto> readXls() throws IOException {
- InputStream is = new FileInputStream("pldrxkxxmb.xls");
- HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);
- XlsDto xlsDto = null;
- List<XlsDto> list = new ArrayList<XlsDto>();
- // 循环工作表Sheet
- for (int numSheet = 0; numSheet < hssfWorkbook.getNumberOfSheets(); numSheet++) {
- HSSFSheet hssfSheet = hssfWorkbook.getSheetAt(numSheet);
- if (hssfSheet == null) {
- continue;
- }
- // 循环行Row
- for (int rowNum = 1; rowNum <= hssfSheet.getLastRowNum(); rowNum++) {
- HSSFRow hssfRow = hssfSheet.getRow(rowNum);
- if (hssfRow == null) {
- continue;
- }
- xlsDto = new XlsDto();
- // 循环列Cell
- // 0学号 1姓名 2学院 3课程名 4 成绩
- // for (int cellNum = 0; cellNum <=4; cellNum++) {
- HSSFCell xh = hssfRow.getCell(0);
- if (xh == null) {
- continue;
- }
- xlsDto.setXh(getValue(xh));
- HSSFCell xm = hssfRow.getCell(1);
- if (xm == null) {
- continue;
- }
- xlsDto.setXm(getValue(xm));
- HSSFCell yxsmc = hssfRow.getCell(2);
- if (yxsmc == null) {
- continue;
- }
- xlsDto.setYxsmc(getValue(yxsmc));
- HSSFCell kcm = hssfRow.getCell(3);
- if (kcm == null) {
- continue;
- }
- xlsDto.setKcm(getValue(kcm));
- HSSFCell cj = hssfRow.getCell(4);
- if (cj == null) {
- continue;
- }
- xlsDto.setCj(Float.parseFloat(getValue(cj)));
- list.add(xlsDto);
- }
- }
- return list;
- }
- /**
- * 得到Excel表中的值
- *
- * @param hssfCell
- * Excel中的每一个格子
- * @return Excel中每一个格子中的值
- */
- @SuppressWarnings("static-access")
- private String getValue(HSSFCell hssfCell) {
- if (hssfCell.getCellType() == hssfCell.CELL_TYPE_BOOLEAN) {
- // 返回布尔类型的值
- return String.valueOf(hssfCell.getBooleanCellValue());
- } else if (hssfCell.getCellType() == hssfCell.CELL_TYPE_NUMERIC) {
- // 返回数值类型的值
- return String.valueOf(hssfCell.getNumericCellValue());
- } else {
- // 返回字符串类型的值
- return String.valueOf(hssfCell.getStringCellValue());
- }
- }
- }
上一篇: >三层架构与MVC谜团之答案揭晓
下一篇: >浅谈Java中的几种随机数