public class ImportFile {
    /**
     * @param cell 一個單元格的物件
     * @return 返回該單元格相應的型別的值
     */
public static String getRightTypeCell(Cell cell){
        cell.setCellType(Cell.CELL_TYPE_STRING);
        return cell.getStringCellValue();
    }
    /**
     * 讀取出filePath中的所有資料資訊
     * @param filePath 
 
excel檔案的絕對路徑
     */
public static void getDataFromExcel2(String filePath,Person person){
        //判斷是否為excel型別檔案
if(!filePath.endsWith(".xls")&&!filePath.endsWith(".xlsx")){
            System.out.println("檔案不是excel型別");
        }
        FileInputStream fis =null;
        Workbook wookbook = null
 
;
        int lineNum = 0;
        Sheet sheet = null;
        try{
            //獲取一個絕對地址的流
fis = new FileInputStream(filePath);
            //2003版本的excel，用.xls結尾, 2007版本以.xlsx
if(filePath.endsWith(".xls")){
                wookbook = new HSSFWorkbook(fis);//得到工作簿
}else{
                wookbook = new XSSFWorkbook(fis);//得到工作簿
 
}
            //得到一個工作表
sheet = wookbook.getSheetAt(0);
            //獲得表頭
Row rowHead = sheet.getRow(0);
            //列數
int rows = rowHead.getPhysicalNumberOfCells();
            //行數
lineNum = sheet.getLastRowNum();
            if(0 == lineNum){
                System.out.println("Excel內沒有資料！");
            }
            getData(sheet, lineNum, rows, person);
        } catch (Exception e){
            e.printStackTrace();
        }
    }
    public static  void  getData(Sheet sheet, int lineNum, int rowNum, Person person){
        //獲得所有資料
for(int i = 1; i <= lineNum; i++){
            //獲得第i行物件
Row row = sheet.getRow(i);
            List<String> list = new ArrayList<>();
            for(int j=0; j<rowNum; j++){
                String str = getRightTypeCell(row.getCell(j));
                list.add(str);
            }
            person.setName(list.get(0));
            person.setAge(Integer.valueOf(list.get(1)));
            person.setPwd(list.get(2));
            System.out.println(person.toString());
        }
    }
    public static void main(String[] arg){
        Person person = new Person();
        getDataFromExcel2("E:\\sss.xlsx", person);//傳物件是為了讓該方法靈活
    }
}

/**
 * Created by hsq 11:07 2018/1/24
 */
public class Person {

    private String name;
    private Integer age;
    private String pwd;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    public String getPwd() {
        return pwd;
    }

    public void setPwd(String pwd) {
        this.pwd = pwd;
    }

    @Override
public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", pwd='" + pwd + '\'' +
                '}';
    }
}