为了解决大批量公司人员导入的问题，实在是懒得写sql脚本手动导入，工作之余顺便调研了Jacob插件，实现了解析Excel，并将人员信息数据批量导入到数据库的小工具。本来想做成上传后解析Excel插入数据库的，没想到读取上传的流结构的方法，就做成现在这样的了：前台主要是负责触发方法。有大神能指教下就更好了。查询了国内外的api用Jacob的实在是太少了，大部分都用poi去操作office，涉及到的文档也少，源码也没有看到解析上传流的源码，虽然功能实现了，但是还是有些遗憾，并不是初衷。
1、 下载JACOB包：http://danadler.com/jacob/
2、 安装配置
解压jacobBin_17.zip
（1）jacob-1.14.3-x64.dll直接放到JDK的jre\bin文件夹下
（2）maven依赖：
<!-- https://mvnrepository.com/artifact/net.sf.jacob-project/jacob --> <dependency> <groupId>net.sf.jacob-project</groupId> <artifactId>jacob</artifactId> <version>1.14.3</version> </dependency>
（3）代码部分：
1)前端代码部分
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
<title>上传xx培训平台人员</title>
<script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<script type="text/javascript" src="http://malsup.github.io/jquery.form.js"></script>
</head>
<body>
<div style="padding: 260px;background: url(http://img.atme8.com/FoDeQwh6JC9_SUvIGI497W78JU3a) no-repeat 330px 94px">
<form id="file_form" action="/user/upload" enctype="multipart/form-data" method="post">
<input type="file" name="file" id="file_input" />
<input type="submit" value="文件上传" id='upFile-btn'>
</form>
</div>
<script type="text/javascript">
$(function() {
$("#file_form").submit(
function() {
//首先验证文件格式
var fileName = $('#file_input').val();
if (fileName === '') {
alert('请选择文件');
return false;
}
var fileType = (fileName.substring(fileName
.lastIndexOf(".") + 1, fileName.length))
.toLowerCase();
if (fileType !== 'xls' && fileType !== 'xlsx') {
alert('文件格式不正确，excel文件！');
return false;
}
$("#file_form").ajaxSubmit({
dataType : "json",
success : function(data, textStatus) {
if (data['result'] === 'OK') {
console.log('上传文件成功');
} else {
console.log('文件格式错误');
}
return false;
}
});
return false;
});
});
</script>
</body>
</html>
2）后端代码部分之java部分
package com.heitian.ssm.controller;
import com.heitian.ssm.model.User;
import com.heitian.ssm.service.UserService;
import com.heitian.ssm.utils.ResponseUtil;
import org.apache.log4j.Logger;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.util.CollectionUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.InputStream;
import java.math.BigDecimal;
import java.util.*;
import com.jacob.com.*;
import com.jacob.activeX.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
@Controller
@RequestMapping("/user")
public class UserController {
private Logger log = Logger.getLogger(UserController.class);
@Resource
private UserService userService;
private static ActiveXComponent xl; //Excel对象(防止打开多个)
private static Dispatch workbooks = null;//工作簿对象
private static Dispatch workbook = null; //具体工作簿
private static Dispatch sheet = null;
private static String filename =null;
private static boolean readonly = false;
private Dispatch currentSheet = null;// 当前sheet
private static int rowNum = 0;
private static int columnCount = 0;
@RequestMapping(value = "/upload", method = RequestMethod.POST)
public ResponseEntity<Object> uploadExcel(HttpServletRequest request, HttpServletResponse response) throws Exception {
// MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
// InputStream in =null;
// List<List<Object>> listob = null;
// MultipartFile fileInfo = multipartRequest.getFile("file");
// if(fileInfo.isEmpty()){
// throw new Exception("文件不存在！");
// }
// in = fileInfo.getInputStream();
String file = "F:\\new\\xxx培训账号配置.xlsx";//文件地址
OpenExcel(file,false);//false为不显示打开Excel
GetValue();
CloseExcel(false);
return ResponseUtil.success("SUCCESS");
}
//打开Excel文档
private static void OpenExcel(String file,boolean f) {
try { filename = file;
xl = new ActiveXComponent("Excel.Application");
xl.setProperty("Visible", new Variant(f));
workbooks = xl.getProperty("Workbooks").toDispatch();
workbook = Dispatch.invoke(workbooks,
"Open",
Dispatch.Method,
new Object[]{filename,
new Variant(false),
new Variant(readonly)},//是否以只读方式打开
new int[1] ).toDispatch();
}catch(Exception e) {
e.printStackTrace();
}
}
//关闭Excel文档
private static void CloseExcel(boolean f) {
try {
Dispatch.call(workbook,"Save");
Dispatch.call(workbook, "Close", new Variant(f));
} catch (Exception e) {
e.printStackTrace();
} finally {
xl.invoke("Quit", new Variant[] {});
System.out.print("Excel 关闭成功！！");
}
}
//读取值，这部分比较主要，解析Excel表结构，获取数据插入数据库
private void GetValue() {
//sheet = Dispatch.get(workbook,"ActiveSheet").toDispatch();
Dispatch sheets = Dispatch.get(workbook,"Sheets").toDispatch();//获取所有工作表
sheet = Dispatch.invoke(sheets, "Item", Dispatch.Get,new Object[] { new String("Sheet1") }, new int[1]).toDispatch();//获取第一个工作表
//以名称读写sheet
//最大列数
rowNum = this.getRowCount();
//最大行数
columnCount = this.getColumnCount();
for(int r = 3; r<= rowNum; r++) {
List<String> list = new ArrayList<String>();
List<User> userList = new ArrayList<User>();//自己定义一个需要接值的bean的list
for (int c = 1; c <= columnCount; c++) {
//获取当前位置
String position = this.getCellPosition(r, c);
Dispatch cell = Dispatch.invoke(sheet, "Range", Dispatch.Get, new Object[]{position}, new int[1]).toDispatch();
String value = Dispatch.get(cell, "Value").toString();
list.add(value);//将解析的数据放入list中
}
User user = new User();
String ddId = null;
if (list.get(0).contains(".")) {
BigDecimal bd = new BigDecimal(list.get(0));
ddId = bd.toPlainString();
} else {
ddId = list.get(0);
}
user.setDdUserId(ddId);
user.setUserName(list.get(1));
user.setRealName(list.get(1));
String phone = null;
if (list.get(2).contains(".")) {//为了防止电话号码变成科学计数法
BigDecimal bd = new BigDecimal(list.get(2));
phone = bd.toPlainString();
} else {
phone = list.get(2);
}
user.setPhone(phone);
if (userService.selectByPhone(phone) == null) {//通过电话号码查询重复
int result = userService.insertUser(user);//读取解析后插入数据库（此处换成自己的接口就可以了）
} else {
//打印出重复的信息列表
userList.add(user);
}
if(!CollectionUtils.isEmpty(userList)) {
System.out.print("重复添加的人员信息有：");
for(int i = 0; i < userList.size(); i++) {
System.out.println("钉钉号："+userList.get(i).getDdUserId()+", 用户名："+userList.get(i).getRealName()+", 电话号码："+userList.get(i).getPhone());
}
}
}
}
/**
* 获取最大行数
* @return
*/
private int getRowCount() {
currentSheet=this.getCurrentSheet();
Dispatch UsedRange = Dispatch.get(currentSheet, "UsedRange").toDispatch();
Dispatch rows = Dispatch.get(UsedRange, "Rows").toDispatch();
int num = Dispatch.get(rows, "count").getInt();
return num;
}
/**
* 获取最大列数
* @return
*/
private int getColumnCount() {
currentSheet=this.getCurrentSheet();
Dispatch UsedRange = Dispatch.get(currentSheet, "UsedRange").toDispatch();
Dispatch Columns = Dispatch.get(UsedRange, "Columns").toDispatch();
int num = Dispatch.get(Columns, "count").getInt();
return num;
}
/**
* 得到当前sheet
* @return
*/
private Dispatch getCurrentSheet() {
currentSheet = Dispatch.get(workbook, "ActiveSheet").toDispatch();
return currentSheet;
}
/**
* 获取位置
* @param rnum 最大行数
* @param cnum 最大列数
*/
private String getCellPosition(int rnum,int cnum) {
String cposition = "";
if(cnum > 26) {
int multiple = (cnum)/26;
int remainder = (cnum)%26;
char mchar = (char)(multiple+64);
char rchar = (char)(remainder+64);
cposition = mchar+""+rchar;
} else {
cposition = (char)(cnum+64)+"";
}
cposition += rnum;
return cposition;
}
}
（4）表格部分：
