import java.io.FileInputStream;  import java.io.IOException;  import org.apache.poi.hssf.usermodel.*;  import org.apache.poi.poifs.filesystem.POIFSFileSystem;  /**   * @author la   *POI工具读取Excel文件   */  public class ParseExcel {        private void parseExcel(String excelFile)throws IOException {          POIFSFileSystem fs=new POIFSFileSystem(new FileInputStream(excelFile));//打开Excel文件          HSSFWorkbook wbHssfWorkbook=new HSSFWorkbook(fs);//打开工作薄          HSSFSheet sheet=wbHssfWorkbook.getSheetAt(0);//打开工作表            HSSFRow row=null;          String data=null;          for (int i = 0; i <=sheet.getLastRowNum(); i++) {//循环读取每一行              row =sheet.getRow(i);              for (int j = 0; j <= row.getLastCellNum(); j++) {//循环读取每一列                  switch (row.getCell((short)j).getCellType()) {//判断单元格的数据类型                  case HSSFCell.CELL_TYPE_BLANK:                      data="";                      break;                  case HSSFCell.CELL_TYPE_NUMERIC:                      data=(long)row.getCell((short)j).getNumericCellValue()+"";                      break;                  default:                      data=row.getCell((short)j).getStringCellValue();                      break;                  }                  System.out.print(data+"\t");              }              System.out.println();          }      }      /**       * @param args       *void       */      public static void main(String[] args)throws IOException {          new ParseExcel().parseExcel(args[0]);      }    }