SpringMvc+POI处理excel表数据导入

一.概念介绍

ApachePOI是Apache软件基金会的开放源码函式库，POI提供API给Java程序对Microsoft Office格式档案读和写的功能

二.功能相关代码

1.环境说明：JDK1.7+tomcat7+spring

2.配置文件的配置

pom文件中添加POI所需依赖

  
   org.apache.poi
   poi
   3.13
  
  
   org.apache.poi
   poi-ooxml
   3.13
  

spring-mvc.xml配置文件上传

3.相关工具类及代码编写

Excel解析工具类（ImportExcelUtil.java）

package com.jointem.hrm.utils;

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.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
/**
 * Created by jenking on 2017/9/8.
 */
public class ImportExcelUtil {

 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;
  Row row = null;
  Cell cell = null;

  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
   System.out.println(sheet.getLastRowNum());
   for (int j = sheet.getFirstRowNum(); j <=sheet.getLastRowNum()-11; j++)
   {
    row = sheet.getRow(j);
//    if(row==null||row.getFirstCellNum()==j)
//    {
//     continue;
//    }
    //遍历所有的列

    List