java读取Excel指定列的数据到并写入新的Excel中

java读取Excel指定列的数据到并写入新的Excel中，指定的列能够这样定义： Sting rowName=“姓名”，同时满足读取所有带有“姓名”的列的数据，例如 用户姓名，客户姓名，希望谁用jxl 给个 例子参考

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Java code:

import java.io.ByteArrayInputStream;
//import java.io.File;
//import java.io.FileInputStream;
//import java.io.FileNotFoundException;
//import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
//import java.io.OutputStream;
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;
import org.apache.commons.io.output.ByteArrayOutputStream;
//import org.apache.commons.lang.RandomStringUtils;

import com.test.bean.User;
import com.test.dao.UserDAO;
import com.test.service.UserService;
//import com.test.util.CharacterUtil;

public class UserServiceImpl implements UserService
{
private UserDAO userDao;

public UserDAO getUserDao()
{
return userDao;
}

public void setUserDao(UserDAO userDao)
{
this.userDao = userDao;
}

public void delete(User user)
{
this.userDao.removeUser(user);

}

public List<User> findAll()
{
return this.userDao.findAllUsers();