SSM+Layui实现批量导入数据功能

SSM+Layui实现批量导入数据功能
最近要实现批量导入功能，查看了相关资料，以及百度了相关内容，发现有点不是很全，特别是引入的依赖不全
话不多说，直接上代码开始：
1、pom.xml文件引入相关依赖

 
    
    
      commons-fileupload
      commons-fileupload
      1.3.3
    
    
      org.apache.poi
      poi-ooxml
      3.14-beta1
    
    
      org.apache.poi
      poi-ooxml-schemas
      3.14-beta1
    
    
      org.apache.poi
      poi
      3.14-beta1
    
    
      org.apache.httpcomponents
      httpclient
      4.5.2
    

2、编写一个工具类-----------ExcelUtils.java：

import java.io.IOException;
import java.io.InputStream;
import java.math.BigDecimal;

import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;


public class ExcelUtils {

    private final static String excel2003L =".xls";    //2003- 版本的excel
    private final static String excel2007U =".xlsx";   //2007+ 版本的excel

    /**
     * 描述：获取IO流中的数据，组装成List>对象
     * @param in,fileName
     * @return
     * @throws IOException
     */
    public  List> getBankListByExcel(InputStream in,String fileName) throws Exception{
        List> list = null;

        //创建Excel工作薄
        Workbook work = this.getWorkbook(in,fileName);
        if(null == work){
            throw new Exception("创建Excel工作薄为空！");
        }
        Sheet sheet = null;  //页数
        Row row = null;  //行数
        Cell cell = null;  //列数

        list = new ArrayList>();
        //遍历Excel中所有的sheet
        for (int i = 0; i < work.getNumberOfSheets(); i++) {
            sheet = work.getSheetAt(i);
            if(sheet==null){continue;}

            //遍历当前sheet中的所有行
            for (int j = sheet.getFirstRowNum(); j <= sheet.getLastRowNum(); j++) {
                row = sheet.getRow(j);
                if(row==null||row.getFirstCellNum()==j){continue;}

                //遍历所有的列
                List