java poi 解析 excel(2007 2003)

package xlsx;

import java.io.IOException;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

public class XlsxMain {

  public static void main( String[] args) throws IOException {
    XlsxMain xlsxMain = new XlsxMain();
   
    xlsxMain.readXlsx();
  }

  private void readXlsx() throws IOException{
    String fileName = "E:\\test.xlsx";

     // xxx.xlsx 用XSSFWorkbook ---  xxx.xls 用HSSFWorkbook即可
    // XSSFSheet --> HSSFSheet, XSSFRow --> HSSFRow, XSSFCell -->HSSFCell (xls是2003 xlsx是2007的)

    XSSFWorkbook xssfWorkbook = new XSSFWorkbook( fileName);
  
    // 循环工作表Sheet
    for(int numSheet = 0; numSheet < xssfWorkbook.getNumberOfSheets(); numSheet++){
      XSSFSheet xssfSheet = xssfWorkbook.getSheetAt( numSheet);
      if(xssfSheet == null){
        continue;
      }
     
      // 循环行Row
      for(int rowNum = 0; rowNum <= xssfSheet.getLastRowNum(); rowNum++ ){
        XSSFRow xssfRow = xssfSheet.getRow( rowNum);
        if(xssfRow == null){
          continue;
        }
       
        // 循环列Cell  
        for(int cellNum = 0; cellNum <= xssfRow.getLastCellNum(); cellNum++){
          XSSFCell xssfCell = xssfRow.getCell( cellNum);
          if(xssfCell == null){
            continue;
          }
          System.out.print("   "+getValue(xssfCell));
        }
        System.out.println();
      }
    }
  }
 
  @SuppressWarnings("static-access")
  private String getValue(XSSFCell xssfCell){//如果是xls即2003将XSSFCell 换成HSSFCell 你懂的
    if(xssfCell.getCellType() == xssfCell.CELL_TYPE_BOOLEAN){
      return String.valueOf( xssfCell.getBooleanCellValue());
    }else if(xssfCell.getCellType() == xssfCell.CELL_TYPE_NUMERIC){
      return String.valueOf( xssfCell.getNumericCellValue());
    }else{
      return String.valueOf( xssfCell.getStringCellValue());
    }
  }
 
}