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 poi3.13 org.apache.poi poi-ooxml3.13
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;
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
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
请求控制器（处理页面excel导入请求）
package com.poiexcel.control;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import com.poiexcel.util.importExcelUtil;
import com.poiexcel.vo.InfoVo;
@Controller
@RequestMapping("/uploadExcel
@RequestMapping(value="upload.do",method={RequestMethod.GET,RequestMethod.POST})
public String uploadExcel(HttpServletRequest request) throws Exception {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
InputStream in =null;
List> listob = null;
MultipartFile file = multipartRequest.getFile("upfile");
if(file.isEmpty()){
throw new Exception("文件不存在！");
}
in = file.getInputStream();
listob = new importExcelUtil().getBankListByExcel(in,file.getOriginalFilename());
in.close();
//该处可调用service相应方法进行数据保存到数据库中，现只对数据输出
for (int i = 0; i < listob.size(); i++) {
List
前端代码
前端运用了bootstrap的文件上传组件fileinput,需要引入fileinput.css，fileinput.js，zh.js，bootstrap.css，bootstrap.js,jquery.min.js
考勤信息录入
Vo对象，保存Excel数据对应的对象
package com.poiexcel.vo;
//将Excel每一行数值转换为对象
public class InfoVo {
private String code;
private String name;
private String date;
private String money;
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getDate() {
return date;
}
public void setDate(String date) {
this.date = date;
}
public String getMoney() {
return money;
}
public void setMoney(String money) {
this.money = money;
}
}
三.效果展示
1.页面展示
2.后台信息打印
四.总结
该例子只在控制台对导入的数据进行了输出，并没有进行持久化。如果要持久化，只需在注释的位置调用service层即可
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。
