2019独角兽企业重金招聘Python工程师标准>>> 
说明
POI可以对2003-和2007+版本的Excel文件做导入导出操作，本章只简单介绍对Excel文件的导入操作。
Excel文件的上传处理处理请求，依然使用SpringMvc中的MultipartRequest方式处理。
前端JSP中使用传统form表单提交方式和Juery.form.js插件提供的异步表单请求方式，分别对这两种方式进行介绍。
环境
JDK7+ Tomcat7.x + Spring4.1.8
说明：
ImportExcelUtil.Java：Excel解析工具类
UploadExcelControl.java ：处理来自页面的请求控制器
InfoVo.java ：将Excel转换为对象存储
main.jsp：前端访问页
........
ImportExcelUtil.java（Excel解析工具类）
package com.poiexcel.util;
import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
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 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
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
UploadExcelControl.java (spring控制器)
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/*")
public class UploadExcelControl {
/**
* 描述：通过传统方式form表单提交方式导入excel文件
* @param request
* @throws Exception
*/
@RequestMapping(value="upload.do",method={RequestMethod.GET,RequestMethod.POST})
public String uploadExcel(HttpServletRequest request) throws Exception {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
System.out.println("通过传统方式form表单提交方式导入excel文件！");
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
InfoVo.java(保存Excel数据对应的对象)
[java] view plain copy
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;
}
}
main.jsp(前端代码)
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
">
My JSP 'index.jsp' starting page
//ajax 方式上传文件操作
$(document).ready(function(){
$('#btn').click(function(){
if(checkData()){
$('#form1').ajaxSubmit({
url:'uploadExcel/ajaxUpload.do',
dataType: 'text',
success: resutlMsg,
error: errorMsg
});
function resutlMsg(msg){
alert(msg);
$("#upfile").val("");
}
function errorMsg(){
alert("导入excel出错！");
}
}
});
});
//JS校验form表单信息
function checkData(){
var fileDir = $("#upfile").val();
var suffix = fileDir.substr(fileDir.lastIndexOf("."));
if("" == fileDir){
alert("选择需要导入的Excel文件！");
return false;
}
if(".xls" != suffix && ".xlsx" != suffix ){
alert("选择Excel格式的文件导入！");
return false;
}
return true;
}
1.通过简单的form表单提交方式，进行文件的上 2.通过jquery.form.js插件提供的form表单一步提交功能
上传文件:
web.xml
org.springframework.web.context.ContextLoaderListener
contextConfigLocation
WEB-INF/application/applicationContext-*.xml
springmvc
org.springframework.web.servlet.DispatcherServlet
1
springmvc
*.do
main.jsp
springmvc-servlet.xml（只做简单配置）
applicationContext-base.xml
效果
后台打印信息
