JAVA：Excel导入导出详解（2）--导入

1. 浏览文件夹，选择需要上传的文件

代码

jsp

   <li class="col-sm-1">
       <span>上&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;传：</span>
   </li>
   <li class="col-sm-3">
       <span>
            <input type="file" id="upfile" name="upfile" placeholder=""/>
       </span>

   </li>
   <li class="col-sm-2">
       <button onclick="importExp();" class="btn btn-success btn-sm ">导&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;入</button>
       <span>格式：.xls</span>
   </li>

js

    //导入文件
    function importExp() {
        var formData = new FormData();
        var name = $("#upfile").val();
        formData.append("file", $("#upfile")[0].files[0]);
        formData.append("name", name);
        $.ajax({
            url: '/manage/order/upload',
            type: 'POST',
            async: false,
            data: formData,
            // 告诉jQuery不要去处理发送的数据
            processData: false,
            // 告诉jQuery不要去设置Content-Type请求头
            contentType: false,
            beforeSend: function () {
                console.log("正在进行，请稍候");
            },
            success: function (responseStr) {
                if (responseStr != "0") {
                    alert("导入成功" + responseStr + "条数据！");
                } else {
                    alert("导入失败");
                }
            }
        });
    }

注意

---

2. 将本地文件上传至服务器指定位置

代码

    /**
     * 上传文件
     *
     * @param
     * @return
     */
    @RequestMapping(value = "upload", method = RequestMethod.POST)
    @ResponseBody
    public String importExp(@RequestParam("file") MultipartFile file, HttpServletRequest request) {
        String realPath = request.getRealPath("");
        String filePath = realPath + "/upload/upload.xls";
        int resmsg = 0;
        // 判断文件是否为空
        if (!file.isEmpty()) {
            Integer rowCount = 1000;
            Integer columnCount = 8;
            try {
                deleteFile(filePath);
                // 转存文件
                file.transferTo(new File(filePath));
                File fileNew = new File(filePath);
                List<ExcelSheetPO> list = readExcel(fileNew, rowCount, columnCount);
                System.out.println(list);
                resmsg = manualOrder(list.get(0).getDataList());
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return (resmsg + "");
    }

注意

路径获取，可使用 String realPath = request.getRealPath(""); 获取root的路径，在拼出file的路径。

---

3. 服务器解析Excel文件

ExcelUtil代码

package com.jy.util.excelUtil;

import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.WorkbookUtil;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.*;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedList;
import java.util.List;

//import com.zkingsoft.common.tools.FileUtil;


/**
 * Created by SchonZhang on 2018/10/19 0019.
 * excel工具类 提供读取和写入excel的功能
        *
        */
public class ExcelUtil {
    /**
     * 标题样式
     */
    private final static String STYLE_HEADER = "header";
    /**
     * 表头样式
     */
    private final static String STYLE_TITLE = "title";
    /**
     * 数据样式
     */
    private final static String STYLE_DATA = "data";

    /**
     * 存储样式
     */
    private static final HashMap<String, CellStyle> cellStyleMap = new HashMap<>();

    /**
     * 读取excel文件里面的内容 支持日期，数字，字符，函数公式，布尔类型
     * @param file
     * @param rowCount
     * @param columnCount
     * @return
     * @throws FileNotFoundException
     * @throws IOException
     */
    public static List<ExcelSheetPO> readExcel(File file, Integer rowCount, Integer columnCount)
            throws FileNotFoundException, IOException {

        // 根据后缀名称判断excel的版本
//            String extName = FileUtil.getFileExtName(file);
        String extName = "."+FilenameUtils.getExtension(file.getName());
        Workbook wb = null;
        if (ExcelVersion.V2003.getSuffix().equals(extName)) {
            wb = new HSSFWorkbook(new FileInputStream(file));
        } else if (ExcelVersion.V2007.getSuffix().equals(extName)) {
            wb = new XSSFWorkbook(new FileInputStream(file));
        } else {
            // 无效后缀名称，这里之能保证excel的后缀名称，不能保证文件类型正确，不过没关系，在创建Workbook的时候会校验文件格式
            throw new IllegalArgumentException("Invalid excel version");
        }
        // 开始读取数据
        List<ExcelSheetPO> sheetPOs = new ArrayList<>();

        // 解析sheet
        for (int i = 0; i < wb.getNumberOfSheets(); i++) {
            Sheet sheet = wb.getSheetAt(i);
            List<List<Object>> dataList = new ArrayList<>();
            //合并单元格处理,获取合并行
            List<CellRangeAddress> cras = getCombineCell(sheet);
            ExcelSheetPO sheetPO = new ExcelSheetPO();
            sheetPO.setSheetName(sheet.getSheetName());
            sheetPO.setDataList(dataList);
            int readRowCount = 0;
            if (rowCount == null || rowCount > sheet.getPhysicalNumberOfRows()) {
                readRowCount = sheet.getPhysicalNumberOfRows();
            } else {
                readRowCount = rowCount;
            }
            // 解析sheet 的行
            for (int j = sheet.getFirstRowNum(); j < readRowCount; j++) {
                //判断是否为合并行
                if(isMergedRegion(sheet,j,0)){
                    int lastRow = getRowNum(cras,sheet.getRow(i).getCell(0),sheet);
                    for(;j<=lastRow;j++){
                        Row row = sheet.getRow(j);
                        if (row == null) {
                            continue;
                        }
                        if (row.getFirstCellNum() < 0) {
                            continue;
                        }
                        int readColumnCount = 0;
                        if (columnCount == null || columnCount > row.getLastCellNum()) {
                            readColumnCount = (int) row.getLastCellNum();
                        } else {
                            readColumnCount = columnCount;
                        }
                        List<Object> rowValue = new LinkedList<Object>();
                        // 解析sheet 的列
                        for (int k = 0; k < readColumnCount; k++) {
//                            if(isMergedRegion(sheet,j,k)) {
//                                rowValue.add(getMergedRegionValue(sheet, j, k));
//                            }else{
//                                Cell cell = row.getCell(k);
//                                rowValue.add(getCellValue(wb, cell));
//                            }
                            //不取合并单元格的数值
                                Cell cell = row.getCell(k);
                                rowValue.add(getCellValue(wb, cell));
                        }
                        dataList.add(rowValue);
                    }

                  j--;
                }else{
                    Row row = sheet.getRow(j);
                    if (row == null) {
                        continue;
                    }
                    if (row.getFirstCellNum() < 0) {
                        continue;
                    }
                    int readColumnCount = 0;
                    if (columnCount == null || columnCount > row.getLastCellNum()) {
                        readColumnCount = (int) row.getLastCellNum();
                    } else {
                        readColumnCount = columnCount;
                    }
                    List<Object> rowValue = new LinkedList<Object>();
                    // 解析sheet 的列
                    for (int k = 0; k < readColumnCount; k++) {
                        Cell cell = row.getCell(k);
                        rowValue.add(getCellValue(wb, cell));
                    }
                    dataList.add(rowValue);
                }
            }
            sheetPOs.add(sheetPO);
        }
        return sheetPOs;
    }

    private static Object getCellValue(Workbook wb, Cell cell) {
        Object columnValue = null;
        if (cell != null) {
            DecimalFormat df = new DecimalFormat("0");// 格式化 number
            // String
            // 字符
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 格式化日期字符串
            DecimalFormat nf = new DecimalFormat("0.00");// 格式化数字
            switch (cell.getCellType()) {
                case Cell.CELL_TYPE_STRING:
                    columnValue = cell.getStringCellValue();
                    break;
                case Cell.CELL_TYPE_NUMERIC:
                    if ("@".equals(cell.getCellStyle().getDataFormatString())) {
                        columnValue = df.format(cell.getNumericCellValue());
                    } else if ("General".equals(cell.getCellStyle().getDataFormatString())) {
                        columnValue = nf.format(cell.getNumericCellValue());
                    } else {
                        columnValue = sdf.format(HSSFDateUtil.getJavaDate(cell.getNumericCellValue()));
                    }
                    break;
                case Cell.CELL_TYPE_BOOLEAN:
                    columnValue = cell.getBooleanCellValue();
                    break;
                case Cell.CELL_TYPE_BLANK:
                    columnValue = "#";
                    break;
                case Cell.CELL_TYPE_FORMULA:
                    // 格式单元格
                    FormulaEvaluator evaluator = wb.getCreationHelper().createFormulaEvaluator();
                    evaluator.evaluateFormulaCell(cell);
                    CellValue cellValue = evaluator.evaluate(cell);
                    columnValue = cellValue.getNumberValue();
                    break;
                default:
                    columnValue = cell.toString();
            }
        }
        return columnValue;
    }

    /**
     * 在硬盘上写入excel文件
     * @param version
     * @param excelSheets
     * @param filePath
     * @throws IOException
     */
    public static void createWorkbookAtDisk(ExcelVersion version, List<ExcelSheetPO> excelSheets, String filePath)
            throws IOException {
        FileOutputStream fileOut = new FileOutputStream(filePath);
        createWorkbookAtOutStream(version, excelSheets, fileOut, true);
    }

    /**
     * 把excel表格写入输出流中，输出流会被关闭
     * @param version
     * @param excelSheets
     * @param outStream
     * @param closeStream
     *            是否关闭输出流
     * @throws IOException
     */
    public static void createWorkbookAtOutStream(ExcelVersion version, List<ExcelSheetPO> excelSheets,
                                                 OutputStream outStream, boolean closeStream) throws IOException {
        if (CollectionUtils.isNotEmpty(excelSheets)) {
            Workbook wb = createWorkBook(version, excelSheets);
            wb.write(outStream);
            if (closeStream) {
                outStream.close();
            }
        }
    }

    private static Workbook createWorkBook(ExcelVersion version, List<ExcelSheetPO> excelSheets) {
        Workbook wb = createWorkbook(version);
        for (int i = 0; i < excelSheets.size(); i++) {
            ExcelSheetPO excelSheetPO = excelSheets.get(i);
            if (excelSheetPO.getSheetName() == null) {
                excelSheetPO.setSheetName("sheet" + i);
            }
            // 过滤特殊字符
            Sheet tempSheet = wb.createSheet(WorkbookUtil.createSafeSheetName(excelSheetPO.getSheetName()));
            buildSheetData(wb, tempSheet, excelSheetPO, version);
        }
        return wb;
    }

    private static void buildSheetData(Workbook wb, Sheet sheet, ExcelSheetPO excelSheetPO, ExcelVersion version) {
        sheet.setDefaultRowHeight((short) 400);
        sheet.setDefaultColumnWidth((short) 30);
        createTitle(sheet, excelSheetPO, wb, version);
        createHeader(sheet, excelSheetPO, wb, version);
        createBody(sheet, excelSheetPO, wb, version);
    }

    private static void createBody(Sheet sheet, ExcelSheetPO excelSheetPO, Workbook wb, ExcelVersion version) {
        List<List<Object>> dataList = excelSheetPO.getDataList();
        for (int i = 0; i < dataList.size() && i < version.getMaxRow(); i++) {
            List<Object> values = dataList.get(i);
            Row row = sheet.createRow(2 + i);
            for (int j = 0; j < values.size() && j < version.getMaxColumn(); j++) {
                Cell cell = row.createCell(j);
                cell.getCellStyle().cloneStyleFrom(getStyle(STYLE_DATA, wb));
                if(values.get(j)!=null){
                    cell.setCellValue(values.get(j).toString());
                }
            }
        }

    }

    private static void createHeader(Sheet sheet, ExcelSheetPO excelSheetPO, Workbook wb, ExcelVersion version) {
        String[] headers = excelSheetPO.getHeaders();
        Row row = sheet.createRow(1);
        for (int i = 0; i < headers.length && i < version.getMaxColumn(); i++) {
            Cell cellHeader = row.createCell(i);
            cellHeader.getCellStyle().cloneStyleFrom(getStyle(STYLE_HEADER, wb));
            cellHeader.setCellValue(headers[i]);
        }

    }

    private static void createTitle(Sheet sheet, ExcelSheetPO excelSheetPO, Workbook wb, ExcelVersion version) {
        Row titleRow = sheet.createRow(0);
        Cell titleCel = titleRow.createCell(0);
        titleCel.setCellValue(excelSheetPO.getTitle());
//        titleCel.setCellStyle(getStyle(STYLE_TITLE, wb));
        titleCel.getCellStyle().cloneStyleFrom(getStyle(STYLE_TITLE, wb));
        // 限制最大列数
        int column = excelSheetPO.getDataList().size() > version.getMaxColumn() ? version.getMaxColumn()
                : excelSheetPO.getDataList().size();
        sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, column ));
    }

    private static CellStyle getStyle(String type, Workbook wb) {

        if (cellStyleMap.containsKey(type)) {
            return cellStyleMap.get(type);
        }
        // 生成一个样式
        CellStyle style = wb.createCellStyle();
        style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        style.setBorderRight(HSSFCellStyle.BORDER_THIN);
        style.setBorderTop(HSSFCellStyle.BORDER_THIN);
        style.setWrapText(true);

        if (STYLE_HEADER == type) {
            style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
            Font font = wb.createFont();
            font.setFontHeightInPoints((short) 16);
            font.setBoldweight(Font.BOLDWEIGHT_BOLD);
            style.setFont(font);
        } else if (STYLE_TITLE == type) {
            style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
            Font font = wb.createFont();
            font.setFontHeightInPoints((short) 18);
            font.setBoldweight(Font.BOLDWEIGHT_BOLD);
            style.setFont(font);
        } else if (STYLE_DATA == type) {
            style.setAlignment(HSSFCellStyle.ALIGN_LEFT);
            Font font = wb.createFont();
            font.setFontHeightInPoints((short) 12);
            style.setFont(font);
        }
        cellStyleMap.put(type, style);
        return style;
    }

    private static Workbook createWorkbook(ExcelVersion version) {
        switch (version) {
            case V2003:
                return new HSSFWorkbook();
            case V2007:
                return new XSSFWorkbook();
        }
        return null;
    }


    /**
     * 获取单元格的值
     * @param cell
     * @return
     */
    public static String getCellValue(Cell cell){
        if(cell == null) return "";
        if(cell.getCellType() == Cell.CELL_TYPE_STRING){
            return cell.getStringCellValue();
        }else if(cell.getCellType() == Cell.CELL_TYPE_BOOLEAN){
            return String.valueOf(cell.getBooleanCellValue());
        }else if(cell.getCellType() == Cell.CELL_TYPE_FORMULA){
            return cell.getCellFormula() ;
        }else if(cell.getCellType() == Cell.CELL_TYPE_NUMERIC){
            return String.valueOf(cell.getNumericCellValue());
        }
        return "";
    }
    /**
     * 合并单元格处理,获取合并行
     * @param sheet
     * @return List<CellRangeAddress>
     */
    public static List<CellRangeAddress> getCombineCell(Sheet sheet)
    {
        List<CellRangeAddress> list = new ArrayList<CellRangeAddress>();
        //获得一个 sheet 中合并单元格的数量
        int sheetmergerCount = sheet.getNumMergedRegions();
        //遍历所有的合并单元格
        for(int i = 0; i<sheetmergerCount;i++)
        {
            //获得合并单元格保存进list中
            CellRangeAddress ca = sheet.getMergedRegion(i);
            list.add(ca);
        }
        return list;
    }
    //获得合并单元格的起始行, 结束行
    private static int getRowNum(List<CellRangeAddress> listCombineCell, Cell cell, Sheet sheet){
        int xr = 0;
        int firstC = 0;
        int lastC = 0;
        int firstR = 0;
        int lastR = 0;
        for(CellRangeAddress ca:listCombineCell)
        {
            //获得合并单元格的起始行, 结束行, 起始列, 结束列
            firstC = ca.getFirstColumn();
            lastC = ca.getLastColumn();
            firstR = ca.getFirstRow();
            lastR = ca.getLastRow();
            if(cell.getRowIndex() >= firstR && cell.getRowIndex() <= lastR)
            {
                if(cell.getColumnIndex() >= firstC && cell.getColumnIndex() <= lastC)
                {
                    xr = lastR;
                }
            }

        }
        return lastR;
//        return xr;

    }
    /**
     * 判断单元格是否为合并单元格，是的话则将单元格的值返回
     * @param listCombineCell 存放合并单元格的list
     * @param cell 需要判断的单元格
     * @param sheet sheet
     * @return
     */
    public String isCombineCell(List<CellRangeAddress> listCombineCell,Cell cell,Sheet sheet)
            throws Exception{
        int firstC = 0;
        int lastC = 0;
        int firstR = 0;
        int lastR = 0;
        String cellValue = null;
        for(CellRangeAddress ca:listCombineCell)
        {
            //获得合并单元格的起始行, 结束行, 起始列, 结束列
            firstC = ca.getFirstColumn();
            lastC = ca.getLastColumn();
            firstR = ca.getFirstRow();
            lastR = ca.getLastRow();
            if(cell.getRowIndex() >= firstR && cell.getRowIndex() <= lastR)
            {
                if(cell.getColumnIndex() >= firstC && cell.getColumnIndex() <= lastC)
                {
                    Row fRow = sheet.getRow(firstR);
                    Cell fCell = fRow.getCell(firstC);
                    cellValue = getCellValue(fCell);
                    break;
                }
            }
            else
            {
                cellValue = "";
            }
        }
        return cellValue;
    }

    /**
     * 获取合并单元格的值
     * @param sheet
     * @param row
     * @param column
     * @return
     */
    public static String getMergedRegionValue(Sheet sheet, int row, int column){
        int sheetMergeCount = sheet.getNumMergedRegions();

        for(int i = 0 ; i < sheetMergeCount ; i++){
            CellRangeAddress ca = sheet.getMergedRegion(i);
            int firstColumn = ca.getFirstColumn();
            int lastColumn = ca.getLastColumn();
            int firstRow = ca.getFirstRow();
            int lastRow = ca.getLastRow();

            if(row >= firstRow && row <= lastRow){
                if(column >= firstColumn && column <= lastColumn){
                    Row fRow = sheet.getRow(firstRow);
                    Cell fCell = fRow.getCell(firstColumn);
                    return getCellValue(fCell) ;
                }
            }
        }

        return null ;
    }


    /**
     * 判断指定的单元格是否是合并单元格
     * @param sheet
     * @param row 行下标
     * @param column 列下标
     * @return
     */
    private static boolean isMergedRegion(Sheet sheet, int row, int column) {
        int sheetMergeCount = sheet.getNumMergedRegions();
        for (int i = 0; i < sheetMergeCount; i++) {
            CellRangeAddress range = sheet.getMergedRegion(i);
            int firstColumn = range.getFirstColumn();
            int lastColumn = range.getLastColumn();
            int firstRow = range.getFirstRow();
            int lastRow = range.getLastRow();
            if(row >= firstRow && row <= lastRow){
                if(column >= firstColumn && column <= lastColumn){
                    return true;
                }
            }
        }
        return false;
    }
}

ExcelSheetPO代码

package com.jy.util.excelUtil;

/**
 * Created by SchonZhang on 2018/10/19 0019.
 */

import java.util.List;

/**
 * 定义表格的数据对象
 */
public class ExcelSheetPO {

    /**
     * sheet的名称
     */
    private String sheetName;


    /**
     * 表格标题
     */
    private String title;

    /**
     * 头部标题集合
     */
    private String[] headers;

    /**
     * 数据集合
     */
    private List<List<Object>> dataList;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String[] getHeaders() {
        return headers;
    }

    public void setHeaders(String[] headers) {
        this.headers = headers;
    }

    public List<List<Object>> getDataList() {
        return dataList;
    }

    public void setDataList(List<List<Object>> dataList) {
        this.dataList = dataList;
    }

    public String getSheetName() {
        return sheetName;
    }

    public void setSheetName(String sheetName) {
        this.sheetName = sheetName;
    }



}

ExcelVersion代码

package com.jy.util.excelUtil;

/**
 * Created by SchonZhang on 2018/10/19 0019.
 */

/**
 * excel版本枚举
 *
 */
public enum ExcelVersion {

    /**
     * 虽然V2007版本支持最大支持1048575 * 16383 ，
     * V2003版支持65535*255
     * 但是在实际应用中如果使用如此庞大的对象集合会导致内存溢出，
     * 因此这里限制最大为10000*100，如果还要加大建议先通过单元测试进行性能测试。
     * 1000*100 全部导出预计时间为27s左右
     */
    V2003(".xls", 10000, 7), V2007(".xlsx", 100, 100);

    private String suffix;

    private int maxRow;

    private int maxColumn;

    ExcelVersion(String suffix, int maxRow, int maxColumn) {
        this.suffix = suffix;
        this.maxRow = maxRow;
        this.maxColumn = maxColumn;
    }

    public String getSuffix() {
        return this.suffix;
    }

    public int getMaxRow() {
        return maxRow;
    }

    public void setMaxRow(int maxRow) {
        this.maxRow = maxRow;
    }

    public int getMaxColumn() {
        return maxColumn;
    }

    public void setMaxColumn(int maxColumn) {
        this.maxColumn = maxColumn;
    }

    public void setSuffix(String suffix) {
        this.suffix = suffix;
    }
}

注意

1. FilenameUtils：需引入import org.apache.commons.io.FilenameUtils;
2. 格式xls V2003 对应HSSFWorkbook
3. 格式xlsl V2007对应XSSFWorkbook
4. 本代码支持对合并单元格的处理，若不需要，可删除
5. 表格中需要导入的列数，由ExcelVersion中的maxColumn控制

---

4. 将Excel中解析的数据存入数据库中

代码

    /**
     * 将解析出的数据存入数据库
     * @param list
     * @return
     */
    public int manualOrder(List<List<Object>> list) {
        boolean flag = true;
        Long userId = 1L;
        Calendar currentDate = Calendar.getInstance();
        DdOrderVo ddOrderVo = null;
        int successOrder = 0;
        Long mainorderNum = this.getOrdercode(userId);
        Long orderNum = this.getOrdercode(userId);
        try {
            //产生新订单///////////////////////////////////////////////////////////////////////
            for (List<Object> excelSheetPO : list) {
                ddOrderVo = new DdOrderVo();
                ddOrderVo.setOrderType(2);
//                ddOrderVo.setOuterOrderNum(structurizationTrade.getFullOrderInfo().getOrderInfo().getTid());
                //插入订单商品表
                //根据商品名称获得商品id////
                DdGoodsVo ddGoodsVo = new DdGoodsVo();
                //判断数据是否满足8个都对应
                if (excelSheetPO.size() < 8) {
                    continue;
                }
                ddGoodsVo.setName(excelSheetPO.get(6) + "");
                ddGoodsVo = ddGoodsService.findById(ddGoodsVo);
                if (ddGoodsVo == null) {
                    continue;
                }
                DdOrderGoodsVo orderGoodsVo = new DdOrderGoodsVo();
                orderGoodsVo.setGoodsName(ddGoodsVo.getName());
                orderGoodsVo.setGoodsId(ddGoodsVo != null ? ddGoodsVo.getId() : 0);
                String goodsNum = excelSheetPO.get(7).toString();
                orderGoodsVo.setGoodsNum((int) Double.parseDouble((goodsNum)));
                orderGoodsVo.setGoodsState(Short.parseShort("5"));
                orderGoodsVo.setUserId(userId);
                Object o = excelSheetPO.get(0);
                if (o.toString() != "#" || excelSheetPO.get(0) != "#") {
                    mainorderNum = this.getOrdercode(userId);
                    orderNum = this.getOrdercode(userId);

                    //生成订单////////////////////////////////////////////
                    ddOrderVo = new DdOrderVo();
                    ddOrderVo.setMainorderNum(mainorderNum);
                    ddOrderVo.setOrderNum(orderNum);
                    ddOrderVo.setOrderState(1);
                    ddOrderVo.setOrderType(2);
                    ddOrderVo.setOrderTime(DateUtil.getTimestamp());
                    ddOrderVo.setUserId(userId);
                    ddOrderService.insert(ddOrderVo);
                    //生成订单发货地址/////////////////////////////////////////
                    SysAddressVo sysAddressVo = new SysAddressVo();
                    sysAddressVo.setUserid(ddOrderVo.getId());
                    sysAddressVo.setAddressee((excelSheetPO.get(0) + ""));
                    sysAddressVo.setPhone((excelSheetPO.get(5) + ""));
                    sysAddressVo.setProvince((excelSheetPO.get(1) + ""));
                    sysAddressVo.setCity((excelSheetPO.get(2) + ""));
                    sysAddressVo.setDistrict((excelSheetPO.get(3) + ""));
                    sysAddressVo.setAddress((excelSheetPO.get(4) + ""));
                    sysAddressService.insert(sysAddressVo);
                }
                orderGoodsVo.setOrderNum(orderNum);
                ddOrderGoodsService.insert(orderGoodsVo);
                successOrder++;
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        return successOrder;
    }

注意

1. 注意处理一个订单多个商品即excel中合并单元格的处理。

以上就是我在做excel导入中遇到的一些问题；
如果能帮到你，我将非常的开心；
若果有哪里没有说清楚的，可以再评论区写出来，我会每天处理一次的。