apache poi读取excel文件

*转载*
用三个循环遍历就行了: 第一层是sheet循环，然后是行循环，最后是单元格循环.
package com.jie.java;

import java.io.File;
import java.io.FileInputStream;

import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;

public class ExcelRead {

/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub

try{
FileInputStream is = new FileInputStream(new File("c:/最终成绩.xls"));
HSSFWorkbook wb=new HSSFWorkbook(is);

int sheetNum=wb.getNumberOfSheets();

for(int i=0;i<sheetNum;i++)
{
HSSFSheet childSheet = wb.getSheetAt(i);
int rowNum = childSheet.getLastRowNum();

for(int j=0;j<rowNum;j++)
{
    HSSFRow row = childSheet.getRow(j);
    int cellNum=row.getLastCellNum();
   
    for(int k=0;k<cellNum;k++)
    {
    System.out.print(row.getCell(k).toString()+" ");
    }
    System.out.println();
}

}
}catch(Exception e)
{
e.printStackTrace();
}

}

}