xls的使用方法

你的意思是
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Date;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;

import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFRow;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import com.fsti.eoms.util.DateUtil;

public class ExcelReader {
public static void main(String[] arg) {
ExcelReader er = new ExcelReader();
try {
HashMap map = er.readExcel("c:/Sheet.xls");
System.out.println(map.isEmpty());