JAVA POI自动导出数据和图片到excel(单元格合并)JAVA POI自动导出数据和图片到excel(单元格合并)

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我是靠谱客的博主迷路山水，最近开发中收集的这篇文章主要介绍JAVA POI自动导出数据和图片到excel(单元格合并)JAVA POI自动导出数据和图片到excel(单元格合并)，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

JAVA POI自动导出数据和图片到excel(单元格合并)

参考链接:
POI XSSFWorkbook读取网络中的图片资源导入EXCEL中

controller

  @PostMapping("/exportExcel")
    public void exportExcel(@RequestBody ApprovalRequest request, HttpServletResponse response) throws Exception {
        
    	String fileName = "待审批数据";
        List<WaitApprovalResponse> data = queryWaitApprovalList(request,total);

        auditWaitDataExport(fileName,data,response);
        
    }
     /**
     * 待审批导出
     * @param response
     * @param data
     */
    private void auditWaitDataExport(String fileName, List<WaitApprovalResponse> data, HttpServletResponse response ) {

        String titleColumn[] = new String[]{"systemId", "submitterName", "submissionDate",
                "chospitalName","caddress","clocationName","clocationNotes","cimages",
                "ohospitalName","oaddress","olocationName","olocationNotes","oimages",
                "comments","approvalStatus"};

        String firstTitleName[]   = new String[]{"Sys ID", "提交人", "提交时间", "更改值","","","","","原始值","","","","","备注","审批"};

        String secondTitleName[]   = new String[]{"#", "#", "#", "名称","地址","备注1","备注2","设备图片",
                "名称","地址","备注1","备注2","设备图片","#","#"};

        int titleSize[] = new int[]{20,20,20,20,20,20,20,20,20,20,20,20,20,20,20};

        ExcelExport excelExport = new ExcelExport();
        excelExport.auditWaitDataExport(response,fileName,titleColumn,firstTitleName,secondTitleName,titleSize , data);
    }

util

package cn.com.ge.apm.util;

import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPalette;
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.CellUtil;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFDrawing;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.lang.reflect.Method;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

/**
 * @Author: yyl
 * @Description: excel导出轮子
 * @Date: Created in 2020/10/16
 */
public class ExcelExport {
    private static final Logger logger = LoggerFactory.getLogger(ExcelExport.class);
    HttpServletResponse response;
    // 文件名
    private String fileName;
    //文件保存路径
    private String fileDir;
    //sheet名
    private String sheetName;
    //表头字体
    private String titleFontType = "Arial Unicode MS";
    //表头背景色
    private String titleBackColor = "C1FBEE";
    //表头字号
    private short titleFontSize = 12;
    //添加自动筛选的列 如 A:M
    private String address = "";
    //正文字体
    private String contentFontType = "Arial Unicode MS";
    //正文字号
    private short contentFontSize = 12;
    //Float类型数据小数位
    private String floatDecimal = "0.00";
    //Double类型数据小数位
    private String doubleDecimal = "0.00";
    //设置列的公式
    private String colFormula[] = null;

    DecimalFormat floatDecimalFormat = new DecimalFormat(floatDecimal);
    DecimalFormat doubleDecimalFormat = new DecimalFormat(doubleDecimal);

    private HSSFWorkbook workbook = null;

    public ExcelExport() {

    }

    public ExcelExport(String fileDir, String sheetName) {
        this.fileDir = fileDir;
        this.sheetName = sheetName;
        workbook = new HSSFWorkbook();
    }

    public ExcelExport(HttpServletResponse response, String fileName, String sheetName) {
        this.fileName = fileName;
        this.response = response;
        this.sheetName = sheetName;
        workbook = new HSSFWorkbook();
    }

    /**
     * 设置表头字体.
     *
     * @param titleFontType
     */
    public void setTitleFontType(String titleFontType) {
        this.titleFontType = titleFontType;
    }

    /**
     * 设置表头背景色.
     *
     * @param titleBackColor 十六进制
     */
    public void setTitleBackColor(String titleBackColor) {
        this.titleBackColor = titleBackColor;
    }

    /**
     * 设置表头字体大小.
     *
     * @param titleFontSize
     */
    public void setTitleFontSize(short titleFontSize) {
        this.titleFontSize = titleFontSize;
    }

    /**
     * 设置表头自动筛选栏位,如A:AC.
     *
     * @param address
     */
    public void setAddress(String address) {
        this.address = address;
    }

    /**
     * 设置正文字体.
     *
     * @param contentFontType
     */
    public void setContentFontType(String contentFontType) {
        this.contentFontType = contentFontType;
    }

    /**
     * 设置正文字号.
     *
     * @param contentFontSize
     */
    public void setContentFontSize(short contentFontSize) {
        this.contentFontSize = contentFontSize;
    }

    /**
     * 设置float类型数据小数位 默认.00
     *
     * @param doubleDecimal 如 ".00"
     */
    public void setDoubleDecimal(String doubleDecimal) {
        this.doubleDecimal = doubleDecimal;
    }

    /**
     * 设置doubel类型数据小数位 默认.00
     *
     * @param floatDecimalFormat 如 ".00
     */
    public void setFloatDecimalFormat(DecimalFormat floatDecimalFormat) {
        this.floatDecimalFormat = floatDecimalFormat;
    }

    /**
     * 设置列的公式
     *
     * @param colFormula 存储i-1列的公式 涉及到的行号使用@替换 如A@+B@
     */
    public void setColFormula(String[] colFormula) {
        this.colFormula = colFormula;
    }

    /**
     * 写excel.
     * xls方式
     *
     * @param titleColumn 对应bean的属性名
     * @param titleName   excel要导出的列名
     * @param titleSize   列宽
     * @param dataList    数据
     */
    public void writeExcel(String titleColumn[], String titleName[], int titleSize[], List<?> dataList) {
        //添加Worksheet（不添加sheet时生成的xls文件打开时会报错)
        Sheet sheet = workbook.createSheet(this.sheetName);
        //新建文件
        OutputStream out = null;
        try {
            if (fileDir != null) {
                //有文件路径
                out = new FileOutputStream(fileDir);
            } else {
                //否则，直接写到输出流中
                out = response.getOutputStream();
                fileName = fileName + ".xls";
                response.setContentType("application/msexcel;charset=UTF-8");
                response.setHeader("Content-Disposition", "attachment; filename="
                        + URLEncoder.encode(fileName, "UTF-8"));
            }

            //写入excel的表头
            Row titleNameRow = workbook.getSheet(sheetName).createRow(0);
            //设置样式
            CellStyle titleStyle = workbook.createCellStyle();
            titleStyle = (HSSFCellStyle) setFontAndBorder(titleStyle, titleFontType, (short) titleFontSize);
            titleStyle = (HSSFCellStyle) setColor(titleStyle, titleBackColor, (short) 10);

            for (int i = 0; i < titleName.length; i++) {
                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                Cell cell = titleNameRow.createCell(i);
                cell.setCellStyle(titleStyle);
                cell.setCellValue(titleName[i].toString());
            }

            //为表头添加自动筛选
            if (!"".equals(address)) {
                CellRangeAddress c = (CellRangeAddress) CellRangeAddress.valueOf(address);
                sheet.setAutoFilter(c);
            }

            //通过反射获取数据并写入到excel中
            if (dataList != null && dataList.size() > 0) {
                //设置样式
                HSSFCellStyle dataStyle = workbook.createCellStyle();
                titleStyle = (HSSFCellStyle) setFontAndBorder(titleStyle, contentFontType, (short) contentFontSize);

                if (titleColumn.length > 0) {
                    for (int rowIndex = 1; rowIndex <= dataList.size(); rowIndex++) {
                        Object obj = dataList.get(rowIndex - 1);     //获得该对象
                        Class clsss = obj.getClass();     //获得该对对象的class实例
                        Row dataRow = workbook.getSheet(sheetName).createRow(rowIndex);
                        for (int columnIndex = 0; columnIndex < titleColumn.length; columnIndex++) {
                            String title = titleColumn[columnIndex].toString().trim();
                            if (!"".equals(title)) {  //字段不为空
                                //使首字母大写
                                String UTitle = Character.toUpperCase(title.charAt(0)) + title.substring(1, title.length()); // 使其首字母大写;
                                String methodName = "get" + UTitle;

                                // 设置要执行的方法
                                Method method = clsss.getDeclaredMethod(methodName);

                                //获取返回类型
                                String returnType = method.getReturnType().getName();
                                Object object = method.invoke(obj);
                                String data = method.invoke(obj) == null ? "" : object.toString();
                                Cell cell = dataRow.createCell(columnIndex);
                                if (data != null && !"".equals(data)) {
                                    if ("int".equals(returnType)) {
                                        cell.setCellValue(Integer.parseInt(data));
                                    } else if ("long".equals(returnType)) {
                                        cell.setCellValue(Long.parseLong(data));
                                    } else if ("float".equals(returnType)) {
                                        cell.setCellValue(floatDecimalFormat.format(Float.parseFloat(data)));
                                    } else if ("double".equals(returnType)) {
                                        cell.setCellValue(doubleDecimalFormat.format(Double.parseDouble(data)));
                                    } else if (Date.class.getName().equals(returnType)) {
                                        cell.setCellValue(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(object));
                                    } else {
                                        cell.setCellValue(data);
                                    }
                                }
                            } else {   //字段为空 检查该列是否是公式
                                if (colFormula != null) {
                                    String sixBuf = colFormula[columnIndex].replace("@", (rowIndex + 1) + "");
                                    Cell cell = dataRow.createCell(columnIndex);
                                    cell.setCellFormula(sixBuf);
                                }
                            }
                        }
                    }
                }
            }
            workbook.write(out);
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            if (out != null) {
                try {
                    out.close();
                } catch (IOException e) {
                    logger.debug("导出写Excel异常");
                }
            }
        }
    }


    /**
     * xlsx方式
     *
     * @param response
     * @param fileName
     * @param titleColumn
     * @param titleName
     * @param titleSize
     * @param dataList
     */
    public void writeBigExcel(HttpServletResponse response, String fileName, String titleColumn[],
                              String titleName[], int titleSize[], List<?> dataList) {
        try {
            SXSSFWorkbook workbook = new SXSSFWorkbook(100);
            OutputStream out = response.getOutputStream();
            String lastFileName = fileName + ".xlsx";
            response.setContentType("application/msexcel;charset=UTF-8");
            response.setHeader("Content-Disposition", "attachment; filename="
                    + URLEncoder.encode(lastFileName, "UTF-8"));
            int k = 0;
            int rowIndex;
            Sheet sheet = workbook.createSheet(fileName + (k + 1));
            //写入excel的表头
            Row titleNameRow = workbook.getSheet(fileName + (k + 1)).createRow(0);
            for (int i = 0; i < titleName.length; i++) {
                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                Cell cell = titleNameRow.createCell(i);
                cell.setCellValue(titleName[i]);
            }
            //写入到excel中
            if (dataList != null && dataList.size() > 0) {
                if (titleColumn.length > 0) {
                    for (int index = 0; index < dataList.size(); index++) {
                        //每个sheet3W条数据
                        if (index != 0 && (index) % 30000 == 0) {
                            k = k + 1;
                            sheet = workbook.createSheet(fileName + (k + 1));
                            //写入excel的表头
                            titleNameRow = workbook.getSheet(fileName + (k + 1)).createRow(0);
                            for (int i = 0; i < titleName.length; i++) {
                                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                                Cell cell = titleNameRow.createCell(i);
                                cell.setCellValue(titleName[i]);
                            }
                        }
                        if (index < 30000) {
                            rowIndex = index + 1;
                        } else {
                            rowIndex = index - 30000 * ((index) / 30000) + 1;
                        }
                        Object obj = dataList.get(index);
                        Class clazz = obj.getClass();
                        Row dataRow = workbook.getSheet(fileName + (k + 1)).createRow(rowIndex);
                        for (int columnIndex = 0; columnIndex < titleColumn.length; columnIndex++) {
                            String title = titleColumn[columnIndex].trim();
                            if (!"".equals(title)) {
                                // 获取返回类型
                                String UTitle = Character.toUpperCase(title.charAt(0)) + title.substring(1, title.length()); // 使其首字母大写;
                                String methodName = "get" + UTitle;
                                Method method = clazz.getDeclaredMethod(methodName);
                                String returnType = method.getReturnType().getName();
                                Object object = method.invoke(obj);
                                String data = method.invoke(obj) == null ? "" : object.toString();
                                Cell cell = dataRow.createCell(columnIndex);
                                if (data != null && !"".equals(data)) {
                                    if ("int".equals(returnType)) {
                                        cell.setCellValue(Integer.parseInt(data));
                                    } else if ("long".equals(returnType)) {
                                        cell.setCellValue(Long.parseLong(data));
                                    } else if ("float".equals(returnType)) {
                                        cell.setCellValue(new DecimalFormat("0.00").format(Float.parseFloat(data)));
                                    } else if ("double".equals(returnType)) {
                                        cell.setCellValue(new DecimalFormat("0.00").format(Double.parseDouble(data)));
                                    } else if (Date.class.getName().equals(returnType)) {
                                        cell.setCellValue(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(object));
                                    } else {
                                        cell.setCellValue(data);
                                    }
                                } else {   //字段为空 检查该列是否是公式
                                    if (colFormula != null) {
                                        String sixBuf = colFormula[columnIndex].replace("@", (rowIndex + 1) + "");
                                        cell = dataRow.createCell(columnIndex);
                                        cell.setCellFormula(sixBuf);
                                    }
                                }
                            }
                        }
                    }
                }
            }
            workbook.write(out);
            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 将16进制的颜色代码写入样式中来设置颜色
     *
     * @param style 保证style统一
     * @param color 颜色：66FFDD
     * @param index 索引 8-64 使用时不可重复
     * @return
     */
    public CellStyle setColor(CellStyle style, String color, short index) {
        if ("".equals(color)) {
            //转为RGB码
            int r = Integer.parseInt((color.substring(0, 2)), 16);   //转为16进制
            int g = Integer.parseInt((color.substring(2, 4)), 16);
            int b = Integer.parseInt((color.substring(4, 6)), 16);
            //自定义cell颜色
            HSSFPalette palette = workbook.getCustomPalette();
            palette.setColorAtIndex((short) index, (byte) r, (byte) g, (byte) b);

            style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
            style.setFillForegroundColor(index);
        }
        return style;
    }

    /**
     * 设置字体并加外边框
     *
     * @param style 样式
     * @param style 字体名
     * @param style 大小
     * @return
     */
    public CellStyle setFontAndBorder(CellStyle style, String fontName, short size) {
        HSSFFont font = workbook.createFont();
        font.setFontHeightInPoints(size);
        font.setFontName(fontName);
        font.setBold(true);
        style.setFont(font);
        style.setBorderBottom(BorderStyle.THIN); //下边框
        style.setBorderLeft(BorderStyle.THIN);//左边框
        style.setBorderTop(BorderStyle.THIN);//上边框
        style.setBorderRight(BorderStyle.THIN);//右边框
        return style;
    }
    /**
     * 待审批导出
     */
    public void auditWaitDataExport(HttpServletResponse response, String fileName, String titleColumn[],
                              String firstTitleName[],String secondTitleName[], int titleSize[], List<?> dataList) {
        try {
            XSSFWorkbook workbook = new XSSFWorkbook();
            OutputStream out = response.getOutputStream();
            String lastFileName = fileName + ".xlsx";
            response.setContentType("application/msexcel;charset=UTF-8");
            response.setHeader("Content-Disposition", "attachment; filename="
                    + URLEncoder.encode(lastFileName, "UTF-8"));
            int k = 0;
            int rowIndex;
            XSSFSheet sheet = workbook.createSheet(fileName + (k + 1));
            //画图的顶级管理器，一个sheet只能获取一个（一定要注意这点）
            XSSFDrawing patriarch = sheet.createDrawingPatriarch();
            //写入excel的第一行表头
            CellRangeAddress region1 = new CellRangeAddress(0, 0, 3, 7);
            CellRangeAddress region2 = new CellRangeAddress(0, 0, 8, 12);
            sheet.addMergedRegion(region1);
            sheet.addMergedRegion(region2);

            Row titleNameRow = workbook.getSheet(fileName + (k + 1)).createRow(0);
            for (int i = 0; i < firstTitleName.length; i++) {
                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                Cell cell = titleNameRow.createCell(i);
                cell.setCellValue(firstTitleName[i]);
                setTableHeadStyle(workbook, cell);

            }
            //写入excel的第二行表头
            Row secondTitleRow = workbook.getSheet(fileName + (k + 1)).createRow(1);
            for (int i = 0; i < secondTitleName.length; i++) {
                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                Cell cell = secondTitleRow.createCell(i);
                if(!"#".equals(secondTitleName[i])){
                    cell.setCellValue(secondTitleName[i]);
                    setTableHeadStyle(workbook, cell);
                }
            }

            //写入到excel中
            if (dataList != null && dataList.size() > 0) {
                if (titleColumn.length > 0) {
                    for (int index = 0; index < dataList.size(); index++) {
                        //每个sheet3W条数据
                        if (index != 0 && (index) % 30000 == 0) {
                            k = k + 1;
                            sheet = workbook.createSheet(fileName + (k + 1));
                            CellRangeAddress region3 = new CellRangeAddress(0, 0, 3, 7);
                            CellRangeAddress region4 = new CellRangeAddress(0, 0, 8, 12);
                            sheet.addMergedRegion(region3);
                            sheet.addMergedRegion(region4);
                            //写入excel的表头
                            titleNameRow = workbook.getSheet(fileName + (k + 1)).createRow(0);
                            for (int i = 0; i < firstTitleName.length; i++) {
                                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                                Cell cell = titleNameRow.createCell(i);
                                cell.setCellValue(firstTitleName[i]);
                            }
                            //写入excel的第二行表头
                            secondTitleRow = workbook.getSheet(fileName + (k + 1)).createRow(1);
                            for (int i = 0; i < secondTitleName.length; i++) {
                                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                                Cell cell = secondTitleRow.createCell(i);
                                if(!"#".equals(secondTitleName[i])){
                                    cell.setCellValue(secondTitleName[i]);
                                }
                            }
                        }
                        if (index < 30000) {
                            rowIndex = index + 2;
                        } else {
                            rowIndex = index - 30000 * ((index) / 30000) + 2;
                        }
                        Object obj = dataList.get(index);
                        Class clazz = obj.getClass();
                        Row dataRow = workbook.getSheet(fileName + (k + 1)).createRow(rowIndex);
                        dataRow.setHeight((short)(256*15));//设置行高
                        for (int columnIndex = 0; columnIndex < titleColumn.length; columnIndex++) {
                            String title = titleColumn[columnIndex].trim();
                            if (!"".equals(title)) {
                                // 获取返回类型
                                String UTitle = Character.toUpperCase(title.charAt(0)) + title.substring(1, title.length()); // 使其首字母大写;
                                String methodName = "get" + UTitle;
                                Method method = clazz.getDeclaredMethod(methodName);
                                String returnType = method.getReturnType().getName();
                                Object object = method.invoke(obj);

                                if("getCimages".equals(methodName)){
                                    String[] data = (String[]) method.invoke(obj);
                                    if(data !=null && data.length>0){
                                        String url = data[0];
                                        if(StringUtils.isEmpty(url)){
                                            continue;
                                        }
                                        byte[] bytes = downloadImage(url);
                                        if(bytes!=null){
                                            insertImage(index,workbook,patriarch,bytes,columnIndex,rowIndex);
                                        }
                                    }

                                }else {
                                    String data = method.invoke(obj) == null ? "" : object.toString();
                                    Cell cell = dataRow.createCell(columnIndex);
                                    if (data != null && !"".equals(data)) {
                                        if ("int".equals(returnType)) {
                                            cell.setCellValue(Integer.parseInt(data));
                                        } else if ("long".equals(returnType)) {
                                            cell.setCellValue(Long.parseLong(data));
                                        } else if ("float".equals(returnType)) {
                                            cell.setCellValue(new DecimalFormat("0.00").format(Float.parseFloat(data)));
                                        } else if ("double".equals(returnType)) {
                                            cell.setCellValue(new DecimalFormat("0.00").format(Double.parseDouble(data)));
                                        } else if (Date.class.getName().equals(returnType)) {
                                            cell.setCellValue(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(object));
                                        } else {
                                            cell.setCellValue(data);
                                        }
                                    } else {   //字段为空 检查该列是否是公式
                                        if (colFormula != null) {
                                            String sixBuf = colFormula[columnIndex].replace("@", (rowIndex + 1) + "");
                                            cell = dataRow.createCell(columnIndex);
                                            cell.setCellFormula(sixBuf);
                                        }
                                    }
                                }

                            }
                        }
                    }
                }
            }
            workbook.write(out);
            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void insertImage(int index,XSSFWorkbook workbook, XSSFDrawing patriarch,byte[] byteData,int colIndex,int rowIndex) {
        /**anchor主要用于设置图片的属性
         * 该构造函数有8个参数
         * 前四个参数是控制图片在单元格的位置，分别是图片距离单元格left，top，right，bottom的像素距离
         * 后四个参数，前两个表示图片左上角所在的cellNum和 rowNum，后两个参数对应的表示图片右下角所在的cellNum和 rowNum，
         * excel中的cellNum和rowNum的index都是从0开始的
         *
         */
        XSSFClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short)colIndex, rowIndex, (short) colIndex+1,rowIndex+1 );

        //Sets the anchor type （图片在单元格的位置）
        //0 = Move and size with Cells, 2 = Move but don't size with cells, 3 = Don't move or size with cells.

        anchor.setAnchorType(ClientAnchor.AnchorType.MOVE_AND_RESIZE);//设置图片随单元移动调整大小

        patriarch.createPicture(anchor, workbook.addPicture(byteData, XSSFWorkbook.PICTURE_TYPE_JPEG));
    }

    private void setTableHeadStyle(XSSFWorkbook workbook, Cell cell) {
        CellStyle style = workbook.createCellStyle();
        //设置字体
        Font font = workbook.createFont();
        font.setFontName("黑体");
        font.setFontHeightInPoints((short) 12);//设置字体大小
        font.setBold(true);
        style.setFont(font);
        //设置背景色
//        style.setFillForegroundColor(IndexedColors.AQUA.getIndex());
//        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        cell.setCellStyle(style);

        // 设置单元格内容水平垂直居中
        CellUtil.setAlignment(cell, HorizontalAlignment.CENTER);
        CellUtil.setVerticalAlignment(cell, VerticalAlignment.CENTER);
    }

    /**
     * 审批历史导出
     */
    public void auditFinishDataExport(HttpServletResponse response, String fileName, String titleColumn[],
                               String firstTitleName[],String secondTitleName[], int titleSize[], List<?> dataList) {
        try {
            SXSSFWorkbook workbook = new SXSSFWorkbook(100);
            OutputStream out = response.getOutputStream();
            String lastFileName = fileName + ".xlsx";
            response.setContentType("application/msexcel;charset=UTF-8");
            response.setHeader("Content-Disposition", "attachment; filename="
                    + URLEncoder.encode(lastFileName, "UTF-8"));
            int k = 0;
            int rowIndex;
            Sheet sheet = workbook.createSheet(fileName + (k + 1));
            //写入excel的第一行表头
            CellRangeAddress region1 = new CellRangeAddress(0, 0, 3, 7);
            sheet.addMergedRegion(region1);

            Row titleNameRow = workbook.getSheet(fileName + (k + 1)).createRow(0);
            for (int i = 0; i < firstTitleName.length; i++) {
                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                Cell cell = titleNameRow.createCell(i);
                cell.setCellValue(firstTitleName[i]);
                // 设置单元格内容水平垂直居中
                CellUtil.setAlignment(cell, HorizontalAlignment.CENTER);
                CellUtil.setVerticalAlignment(cell, VerticalAlignment.CENTER);
                //生成单元格样式
                CellStyle style = workbook.createCellStyle();
                //设置背景颜色
                style.setFillForegroundColor(IndexedColors.CORNFLOWER_BLUE.getIndex());// 设置背景色
                cell.setCellStyle(style);
            }
            //写入excel的第二行表头
            Row secondTitleRow = workbook.getSheet(fileName + (k + 1)).createRow(1);
            for (int i = 0; i < secondTitleName.length; i++) {
                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                Cell cell = secondTitleRow.createCell(i);
                if(!"#".equals(secondTitleName[i])){
                    cell.setCellValue(secondTitleName[i]);
                }
            }

            //写入到excel中
            if (dataList != null && dataList.size() > 0) {
                if (titleColumn.length > 0) {
                    for (int index = 0; index < dataList.size(); index++) {
                        //每个sheet3W条数据
                        if (index != 0 && (index) % 30000 == 0) {
                            k = k + 1;
                            sheet = workbook.createSheet(fileName + (k + 1));
                            CellRangeAddress region3 = new CellRangeAddress(0, 0, 3, 7);
                            sheet.addMergedRegion(region3);
                            //写入excel的表头
                            titleNameRow = workbook.getSheet(fileName + (k + 1)).createRow(0);
                            for (int i = 0; i < firstTitleName.length; i++) {
                                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                                Cell cell = titleNameRow.createCell(i);
                                cell.setCellValue(firstTitleName[i]);
                            }
                            //写入excel的第二行表头
                            secondTitleRow = workbook.getSheet(fileName + (k + 1)).createRow(1);
                            for (int i = 0; i < secondTitleName.length; i++) {
                                sheet.setColumnWidth(i, titleSize[i] * 256);    //设置宽度
                                Cell cell = secondTitleRow.createCell(i);
                                if(!"#".equals(secondTitleName[i])){
                                    cell.setCellValue(secondTitleName[i]);
                                }
                            }
                        }
                        if (index < 30000) {
                            rowIndex = index + 2;
                        } else {
                            rowIndex = index - 30000 * ((index) / 30000) + 2;
                        }
                        Object obj = dataList.get(index);
                        Class clazz = obj.getClass();
                        Row dataRow = workbook.getSheet(fileName + (k + 1)).createRow(rowIndex);
                        for (int columnIndex = 0; columnIndex < titleColumn.length; columnIndex++) {
                            String title = titleColumn[columnIndex].trim();
                            if (!"".equals(title)) {
                                // 获取返回类型
                                String UTitle = Character.toUpperCase(title.charAt(0)) + title.substring(1, title.length()); // 使其首字母大写;
                                String methodName = "get" + UTitle;
                                Method method = clazz.getDeclaredMethod(methodName);
                                String returnType = method.getReturnType().getName();
                                Object object = method.invoke(obj);
                                String data = method.invoke(obj) == null ? "" : object.toString();
                                Cell cell = dataRow.createCell(columnIndex);
                                if (data != null && !"".equals(data)) {
                                    if ("int".equals(returnType)) {
                                        cell.setCellValue(Integer.parseInt(data));
                                    } else if ("long".equals(returnType)) {
                                        cell.setCellValue(Long.parseLong(data));
                                    } else if ("float".equals(returnType)) {
                                        cell.setCellValue(new DecimalFormat("0.00").format(Float.parseFloat(data)));
                                    } else if ("double".equals(returnType)) {
                                        cell.setCellValue(new DecimalFormat("0.00").format(Double.parseDouble(data)));
                                    } else if (Date.class.getName().equals(returnType)) {
                                        cell.setCellValue(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(object));
                                    } else {
                                        cell.setCellValue(data);
                                    }
                                } else {   //字段为空 检查该列是否是公式
                                    if (colFormula != null) {
                                        String sixBuf = colFormula[columnIndex].replace("@", (rowIndex + 1) + "");
                                        cell = dataRow.createCell(columnIndex);
                                        cell.setCellFormula(sixBuf);
                                    }
                                }
                            }
                        }
                    }
                }
            }
            workbook.write(out);
            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * 下载图片
     * @param pictureUrl
     * @return
     */
    public byte[] downloadImage(String pictureUrl){
        try{
//            pictureUrl = pictureUrl.replaceAll(" ","");
//            if ( !(pictureUrl.startsWith("http")) && !(pictureUrl.startsWith("https"))){
//                int indexOf = pictureUrl.indexOf("//");
//                String endStr = pictureUrl.substring(indexOf);
//                pictureUrl = "http:"+endStr;
//
//            }
            URL url = new URL(pictureUrl);
            //打开链接
            HttpURLConnection conn = (HttpURLConnection)url.openConnection();
            //设置请求方式为"GET"
            conn.setRequestMethod("GET");
            //超时响应时间为50秒
            conn.setConnectTimeout(50 * 1000);
            //通过输入流获取图片数据
            InputStream inStream = conn.getInputStream();
            //得到图片的二进制数据，以二进制封装得到数据，具有通用性
            byte[] byteData = readInputStream(inStream);
            return byteData;
        }catch (Exception e){
            logger.error("downloadImage error",e);
        }
        return null;
    }

    private static byte[] readInputStream(InputStream inStream) throws Exception{
        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
        //创建一个Buffer字符串
        byte[] buffer = new byte[1024];
        //每次读取的字符串长度，如果为-1，代表全部读取完毕
        int len = 0;
        //使用一个输入流从buffer里把数据读取出来
        while( (len=inStream.read(buffer)) != -1 ){
            //用输出流往buffer里写入数据，中间参数代表从哪个位置开始读，len代表读取的长度
            outStream.write(buffer, 0, len);
        }
        //关闭输入流
        inStream.close();
        //把outStream里的数据写入内存
        return outStream.toByteArray();
    }

}