实战-ExcelUtil

package com.bonc.system.utils.excel;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.exceptions.UtilException;
import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.ObjectUtil;
import com.bonc.common.config.ProjectConfig;
import com.bonc.common.utils.DateUtils;
import com.bonc.common.utils.ReflectUtils;
import com.bonc.common.utils.file.FileUtils;
import com.bonc.common.utils.file.ImageUtils;
import com.bonc.system.utils.DictUtils;
import com.bonc.system.utils.excel.annotations.Excel;
import com.bonc.system.utils.excel.annotations.Excel.ColumnType;
import com.bonc.system.utils.excel.annotations.Excel.Type;
import com.bonc.system.utils.excel.annotations.Excels;
import org.apache.commons.lang3.StringUtils;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ooxml.POIXMLDocumentPart;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.util.IOUtils;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.*;
import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.math.BigDecimal;
import java.nio.charset.StandardCharsets;
import java.text.DecimalFormat;
import java.util.*;
import java.util.stream.Collectors;
/**
 * <p>
 * Excel相关处理
 * </p>
 *
 * @author xupu
 * @since 2021/12/27 21:12
 */
public class ExcelUtil<T> {
    // 挂在项目的某文件夹下
    public static final String REPORT_PATH = "templates" + File.separator;
    /**
     * Excel sheet最大行数，默认65536
     */
    public static final int sheetSize = 65536;
    private static final Logger log = LoggerFactory.getLogger(ExcelUtil.class);
    /**
     * 数字格式
     */
    private static final DecimalFormat DOUBLE_FORMAT = new DecimalFormat("######0.00");
    /**
     * 实体对象
     */
    public Class<T> clazz;
    /**
     * 工作表名称
     */
    private String sheetName;
    /**
     * 导出类型（EXPORT:导出数据；IMPORT：导入模板）
     */
    private Type type;
    /**
     * 工作薄对象
     */
    private Workbook wb;
    /**
     * 工作表对象
     */
    private Sheet sheet;
    /**
     * 样式列表
     */
    private Map<String, CellStyle> styles;
    /**
     * 导入导出数据列表
     */
    private List<T> list;
    /**
     * 注解列表
     */
    private List<Object[]> fields;
    /**
     * 当前行号
     */
    private int rowNum;
    /**
     * 标题
     */
    private String title;
    /**
     * 最大高度
     */
    private short maxHeight;
    /**
     * 统计列表
     */
    private Map<Integer, Double> statistics = new HashMap<>();
    public ExcelUtil(Class<T> clazz) {
        this.clazz = clazz;
    }
    /**
     * 获取画布
     */
    public static Drawing<?> getDrawingPatriarch(Sheet sheet) {
        if (sheet.getDrawingPatriarch() == null) {
            sheet.createDrawingPatriarch();
        }
        return sheet.getDrawingPatriarch();
    }
    /**
     * 解析导出值 0=男,1=女,2=未知
     *
     * @param propertyValue 参数值
     * @param converterExp  翻译注解
     * @param separator     分隔符
     * @return 解析后值
     */
    public static String convertByExp(String propertyValue, String converterExp, String separator) {
        StringBuilder propertyString = new StringBuilder();
        String[] convertSource = converterExp.split(",");
        for (String item : convertSource) {
            String[] itemArray = item.split("=");
            if (StringUtils.containsAny(separator, propertyValue)) {
                for (String value : propertyValue.split(separator)) {
                    if (itemArray[0].equals(value)) {
                        propertyString.append(itemArray[1]).append(separator);
                        break;
                    }
                }
            } else {
                if (itemArray[0].equals(propertyValue)) {
                    return itemArray[1];
                }
            }
        }
        return StringUtils.stripEnd(propertyString.toString(), separator);
    }
    /**
     * 反向解析值 男=0,女=1,未知=2
     *
     * @param propertyValue 参数值
     * @param converterExp  翻译注解
     * @param separator     分隔符
     * @return 解析后值
     */
    public static String reverseByExp(String propertyValue, String converterExp, String separator) {
        StringBuilder propertyString = new StringBuilder();
        String[] convertSource = converterExp.split(",");
        for (String item : convertSource) {
            String[] itemArray = item.split("=");
            if (StringUtils.containsAny(separator, propertyValue)) {
                for (String value : propertyValue.split(separator)) {
                    if (itemArray[1].equals(value)) {
                        propertyString.append(itemArray[0]).append(separator);
                        break;
                    }
                }
            } else {
                if (itemArray[1].equals(propertyValue)) {
                    return itemArray[0];
                }
            }
        }
        return StringUtils.stripEnd(propertyString.toString(), separator);
    }
    /**
     * 解析字典值
     *
     * @param dictValue 字典值
     * @param dictType  字典类型
     * @param separator 分隔符
     * @return 字典标签
     */
    public static String convertDictByExp(String dictValue, String dictType, String separator) {
        return DictUtils.getDictLabel(dictType, dictValue, separator);
    }
    /**
     * 反向解析值字典值
     *
     * @param dictLabel 字典标签
     * @param dictType  字典类型
     * @param separator 分隔符
     * @return 字典值
     */
    public static String reverseDictByExp(String dictLabel, String dictType, String separator) {
        return DictUtils.getDictValue(dictType, dictLabel, separator);
    }
    /**
     * 获取Excel2003图片
     *
     * @param sheet    当前sheet对象
     * @param workbook 工作簿对象
     * @return Map key:图片单元格索引（1_1）String，value:图片流PictureData
     */
    public static Map<String, PictureData> getSheetPictures03(HSSFSheet sheet, HSSFWorkbook workbook) {
        Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>();
        List<HSSFPictureData> pictures = workbook.getAllPictures();
        if (!pictures.isEmpty()) {
            for (HSSFShape shape : sheet.getDrawingPatriarch().getChildren()) {
                HSSFClientAnchor anchor = (HSSFClientAnchor) shape.getAnchor();
                if (shape instanceof HSSFPicture) {
                    HSSFPicture pic = (HSSFPicture) shape;
                    int pictureIndex = pic.getPictureIndex() - 1;
                    HSSFPictureData picData = pictures.get(pictureIndex);
                    String picIndex = String.valueOf(anchor.getRow1()) + "_" + String.valueOf(anchor.getCol1());
                    sheetIndexPicMap.put(picIndex, picData);
                }
            }
            return sheetIndexPicMap;
        } else {
            return sheetIndexPicMap;
        }
    }
    /**
     * 获取Excel2007图片
     *
     * @param sheet    当前sheet对象
     * @param workbook 工作簿对象
     * @return Map key:图片单元格索引（1_1）String，value:图片流PictureData
     */
    public static Map<String, PictureData> getSheetPictures07(XSSFSheet sheet, XSSFWorkbook workbook) {
        Map<String, PictureData> sheetIndexPicMap = new HashMap<>();
        for (POIXMLDocumentPart dr : sheet.getRelations()) {
            if (dr instanceof XSSFDrawing) {
                XSSFDrawing drawing = (XSSFDrawing) dr;
                List<XSSFShape> shapes = drawing.getShapes();
                for (XSSFShape shape : shapes) {
                    if (shape instanceof XSSFPicture) {
                        XSSFPicture pic = (XSSFPicture) shape;
                        XSSFClientAnchor anchor = pic.getPreferredSize();
                        CTMarker ctMarker = anchor.getFrom();
                        String picIndex = ctMarker.getRow() + "_" + ctMarker.getCol();
                        sheetIndexPicMap.put(picIndex, pic.getPictureData());
                    }
                }
            }
        }
        return sheetIndexPicMap;
    }
    public void init(List<T> list, String sheetName, String title, Type type) {
        if (list == null) {
            list = new ArrayList<>();
        }
        this.list = list;
        this.sheetName = sheetName;
        this.type = type;
        this.title = title;
        createExcelField();
        createWorkbook();
        createTitle();
    }
    /**
     * 创建excel第一行标题
     */
    public void createTitle() {
        if (StringUtils.isNotEmpty(title)) {
            Row titleRow = sheet.createRow(rowNum == 0 ? rowNum++ : 0);
            titleRow.setHeightInPoints(30);
            Cell titleCell = titleRow.createCell(0);
            titleCell.setCellStyle(styles.get("title"));
            titleCell.setCellValue(title);
            sheet.addMergedRegion(new CellRangeAddress(titleRow.getRowNum(), titleRow.getRowNum(), titleRow.getRowNum(),
                    this.fields.size() - 1));
        }
    }
    /**
     * 对excel表单默认第一个索引名转换成list
     *
     * @param is 输入流
     * @return 转换后集合
     */
    public List<T> importExcel(InputStream is) throws Exception {
        return importExcel(is, 0);
    }
    /**
     * 对excel表单默认第一个索引名转换成list
     *
     * @param is       输入流
     * @param titleNum 标题占用行数
     * @return 转换后集合
     */
    public List<T> importExcel(InputStream is, int titleNum) throws Exception {
        return importExcel(StringUtils.EMPTY, is, titleNum);
    }
    /**
     * 对excel表单指定表格索引名转换成list
     *
     * @param sheetName 表格索引名
     * @param titleNum  标题占用行数
     * @param is        输入流
     * @return 转换后集合
     */
    public List<T> importExcel(String sheetName, InputStream is, int titleNum) throws Exception {
        this.type = Type.IMPORT;
        this.wb = WorkbookFactory.create(is);
        List<T> list = new ArrayList<T>();
        // 如果指定sheet名,则取指定sheet中的内容 否则默认指向第1个sheet
        Sheet sheet = StringUtils.isNotEmpty(sheetName) ? wb.getSheet(sheetName) : wb.getSheetAt(0);
        if (sheet == null) {
            throw new IOException("文件sheet不存在");
        }
        boolean isXSSFWorkbook = !(wb instanceof HSSFWorkbook);
        Map<String, PictureData> pictures;
        if (isXSSFWorkbook) {
            pictures = getSheetPictures07((XSSFSheet) sheet, (XSSFWorkbook) wb);
        } else {
            pictures = getSheetPictures03((HSSFSheet) sheet, (HSSFWorkbook) wb);
        }
        // 获取最后一个非空行的行下标，比如总行数为n，则返回的为n-1
        int rows = sheet.getLastRowNum();
        if (rows > 0) {
            // 定义一个map用于存放excel列的序号和field.
            Map<String, Integer> cellMap = new HashMap<>();
            // 获取表头
            Row heard = sheet.getRow(titleNum);
            for (int i = 0; i < heard.getPhysicalNumberOfCells(); i++) {
                Cell cell = heard.getCell(i);
                if (ObjectUtil.isNotNull(cell)) {
                    String value = this.getCellValue(heard, i).toString();
                    cellMap.put(value, i);
                } else {
                    cellMap.put(null, i);
                }
            }
            // 有数据时才处理 得到类的所有field.
            List<Object[]> fields = this.getFields();
            Map<Integer, Object[]> fieldsMap = new HashMap<>();
            for (Object[] objects : fields) {
                Excel attr = (Excel) objects[1];
                Integer column = cellMap.get(attr.name());
                if (column != null) {
                    fieldsMap.put(column, objects);
                }
            }
            for (int i = titleNum + 1; i <= rows; i++) {
                // 从第2行开始取数据,默认第一行是表头.
                Row row = sheet.getRow(i);
                // 判断当前行是否是空行
                if (isRowEmpty(row)) {
                    continue;
                }
                T entity = null;
                for (Map.Entry<Integer, Object[]> entry : fieldsMap.entrySet()) {
                    Object val = this.getCellValue(row, entry.getKey());
                    // 如果不存在实例则新建.
                    entity = (entity == null ? clazz.newInstance() : entity);
                    // 从map中得到对应列的field.
                    Field field = (Field) entry.getValue()[0];
                    Excel attr = (Excel) entry.getValue()[1];
                    // 取得类型,并根据对象类型设置值.
                    Class<?> fieldType = field.getType();
                    if (String.class == fieldType) {
                        String s = Convert.toStr(val);
                        if (StringUtils.endsWith(s, ".0")) {
                            val = StringUtils.substringBefore(s, ".0");
                        } else {
                            String dateFormat = field.getAnnotation(Excel.class).dateFormat();
                            if (StringUtils.isNotEmpty(dateFormat)) {
                                val = DateUtils.parseDateToStr(dateFormat, (Date) val);
                            } else {
                                val = Convert.toStr(val);
                            }
                        }
                    } else if ((Integer.TYPE == fieldType || Integer.class == fieldType) && StringUtils.isNumeric(Convert.toStr(val))) {
                        val = Convert.toInt(val);
                    } else if (Long.TYPE == fieldType || Long.class == fieldType) {
                        val = Convert.toLong(val);
                    } else if (Double.TYPE == fieldType || Double.class == fieldType) {
                        val = Convert.toDouble(val);
                    } else if (Float.TYPE == fieldType || Float.class == fieldType) {
                        val = Convert.toFloat(val);
                    } else if (BigDecimal.class == fieldType) {
                        val = Convert.toBigDecimal(val);
                    } else if (Date.class == fieldType) {
                        if (val instanceof String) {
                            val = DateUtils.parseDate((String) val);
                        } else if (val instanceof Double) {
                            val = DateUtil.getJavaDate((Double) val);
                        }
                    } else if (Boolean.TYPE == fieldType || Boolean.class == fieldType) {
                        val = Convert.toBool(val, false);
                    }
                    if (ObjectUtil.isNotNull(fieldType)) {
                        String propertyName = field.getName();
                        if (StringUtils.isNotEmpty(attr.targetAttr())) {
                            propertyName = field.getName() + "." + attr.targetAttr();
                        } else if (StringUtils.isNotEmpty(attr.readConverterExp())) {
                            val = reverseByExp(Convert.toStr(val), attr.readConverterExp(), attr.separator());
                        } else if (StringUtils.isNotEmpty(attr.dictType())) {
                            val = reverseDictByExp(Convert.toStr(val), attr.dictType(), attr.separator());
                        } else if (!attr.handler().equals(ExcelHandlerAdapter.class)) {
                            val = dataFormatHandlerAdapter(val, attr);
                        } else if (ColumnType.IMAGE == attr.cellType() && ObjectUtil.isNotEmpty(pictures)) {
                            PictureData image = pictures.get(row.getRowNum() + "_" + entry.getKey());
                            if (image == null) {
                                val = "";
                            } else {
                                byte[] data = image.getData();
                                val = FileUtils.writeImportBytes(data);
                            }
                        }
                        ReflectUtils.invokeSetter(entity, propertyName, val);
                    }
                }
                list.add(entity);
            }
        }
        return list;
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param list      导出数据集合
     * @param sheetName 工作表的名称
     * @return 结果
     */
    public String exportExcel(List<T> list, String sheetName) {
        return exportExcel(list, sheetName, StringUtils.EMPTY);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param list      导出数据集合
     * @param sheetName 工作表的名称
     * @param title     标题
     * @return 结果
     */
    public String exportExcel(List<T> list, String sheetName, String title) {
        this.init(list, sheetName, title, Type.EXPORT);
        return exportExcel();
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param response  返回数据
     * @param list      导出数据集合
     * @param sheetName 工作表的名称
     * @return 结果
     * @throws IOException
     */
    public void exportExcel(HttpServletResponse response, List<T> list, String sheetName) {
        exportExcel(response, list, sheetName, StringUtils.EMPTY);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param response  返回数据
     * @param list      导出数据集合
     * @param sheetName 工作表的名称
     * @param title     标题
     * @return 结果
     * @throws IOException
     */
    public void exportExcel(HttpServletResponse response, List<T> list, String sheetName, String title) {
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        response.setHeader("Content-Disposition", "attachment;fileName=" + new String(sheetName.getBytes(), StandardCharsets.UTF_8) + ".xlsx");
        response.setCharacterEncoding("utf-8");
        this.init(list, sheetName, title, Type.EXPORT);
        exportExcel(response);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param sheetName 工作表的名称
     * @return 结果
     */
    public String importTemplateExcel(String sheetName) {
        return importTemplateExcel(sheetName, StringUtils.EMPTY);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param sheetName 工作表的名称
     * @param title     标题
     * @return 结果
     */
    public String importTemplateExcel(String sheetName, String title) {
        this.init(null, sheetName, title, Type.IMPORT);
        return exportExcel();
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param sheetName 工作表的名称
     * @return 结果
     */
    public void importTemplateExcel(HttpServletResponse response, String sheetName) {
        importTemplateExcel(response, sheetName, StringUtils.EMPTY);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @param sheetName 工作表的名称
     * @param title     标题
     * @return 结果
     */
    public void importTemplateExcel(HttpServletResponse response, String sheetName, String title) {
        response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        try {
            response.setHeader("Content-Disposition",
                    "attachment;filename=" + new String((sheetName+".xlsx").getBytes(), "utf-8"));
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        response.setCharacterEncoding("utf-8");
        this.init(null, sheetName, title, Type.IMPORT);
        exportExcel(response);
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @return 结果
     */
    public void exportExcel(HttpServletResponse response) {
        try {
            writeSheet();
            wb.write(response.getOutputStream());
        } catch (Exception e) {
            log.error("导出Excel异常{}", e.getMessage());
        } finally {
            IOUtils.closeQuietly(wb);
        }
    }
    /**
     * 对list数据源将其里面的数据导入到excel表单
     *
     * @return 下载路径
     */
    public String exportExcel() {
        FileOutputStream fos = null;
        String fileName = sheetName + ".xlsx";
        try {
            fos = new FileOutputStream(REPORT_PATH + fileName);
            writeSheet();
            wb.write(fos);
            fos.flush();
            fos.close();
            return REPORT_PATH + fileName;
        } catch (Exception e) {
            log.error("导出Excel异常{}", e.getMessage());
            throw new UtilException("导出Excel失败，请联系网站管理员！");
        } finally {
            IOUtils.closeQuietly(wb);
            IOUtils.closeQuietly(fos);
        }
    }
    /**
     * 创建写入数据到Sheet
     */
    public void writeSheet() {
        // 取出一共有多少个sheet.
        int sheetNo = Math.max(1, (int) Math.ceil(list.size() * 1.0 / sheetSize));
        for (int index = 0; index < sheetNo; index++) {
            createSheet(sheetNo, index);
            // 产生一行
            Row row = sheet.createRow(rowNum);
            int column = 0;
            // 写入各个字段的列头名称
            for (Object[] os : fields) {
                Excel excel = (Excel) os[1];
                this.createCell(excel, row, column++);
            }
            if (Type.EXPORT.equals(type)) {
                fillExcelData(index, row);
                addStatisticsRow();
            }
        }
    }
    /**
     * 填充excel数据
     *
     * @param index 序号
     * @param row   单元格行
     */
    public void fillExcelData(int index, Row row) {
        int startNo = index * sheetSize;
        int endNo = Math.min(startNo + sheetSize, list.size());
        for (int i = startNo; i < endNo; i++) {
            row = sheet.createRow(i + 1 + rowNum - startNo);
            // 得到导出对象.
            T vo = (T) list.get(i);
            int column = 0;
            for (Object[] os : fields) {
                Field field = (Field) os[0];
                Excel excel = (Excel) os[1];
                this.addCell(excel, row, vo, field, column++);
            }
        }
    }
    /**
     * 创建表格样式
     *
     * @param wb 工作薄对象
     * @return 样式列表
     */
    private Map<String, CellStyle> createStyles(Workbook wb) {
        // 写入各条记录,每条记录对应excel表中的一行
        Map<String, CellStyle> styles = new HashMap<String, CellStyle>();
        CellStyle style = wb.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        Font titleFont = wb.createFont();
        titleFont.setFontName("Arial");
        titleFont.setFontHeightInPoints((short) 16);
        titleFont.setBold(true);
        style.setFont(titleFont);
        styles.put("title", style);
        style = wb.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        style.setBorderRight(BorderStyle.THIN);
        style.setRightBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderLeft(BorderStyle.THIN);
        style.setLeftBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderTop(BorderStyle.THIN);
        style.setTopBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setBorderBottom(BorderStyle.THIN);
        style.setBottomBorderColor(IndexedColors.GREY_50_PERCENT.getIndex());
        Font dataFont = wb.createFont();
        dataFont.setFontName("Arial");
        dataFont.setFontHeightInPoints((short) 10);
        style.setFont(dataFont);
        styles.put("data", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        style.setFillForegroundColor(IndexedColors.GREY_50_PERCENT.getIndex());
        style.setFillPattern(FillPatternType.SOLID_FOREGROUND);
        Font headerFont = wb.createFont();
        headerFont.setFontName("Arial");
        headerFont.setFontHeightInPoints((short) 10);
        headerFont.setBold(true);
        headerFont.setColor(IndexedColors.WHITE.getIndex());
        style.setFont(headerFont);
        styles.put("header", style);
        style = wb.createCellStyle();
        style.setAlignment(HorizontalAlignment.CENTER);
        style.setVerticalAlignment(VerticalAlignment.CENTER);
        Font totalFont = wb.createFont();
        totalFont.setFontName("Arial");
        totalFont.setFontHeightInPoints((short) 10);
        style.setFont(totalFont);
        styles.put("total", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.LEFT);
        styles.put("data1", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.CENTER);
        styles.put("data2", style);
        style = wb.createCellStyle();
        style.cloneStyleFrom(styles.get("data"));
        style.setAlignment(HorizontalAlignment.RIGHT);
        styles.put("data3", style);
        return styles;
    }
    /**
     * 创建单元格
     */
    public Cell createCell(Excel attr, Row row, int column) {
        // 创建列
        Cell cell = row.createCell(column);
        // 写入列信息
        cell.setCellValue(attr.name());
        setDataValidation(attr, row, column);
        cell.setCellStyle(styles.get("header"));
        return cell;
    }
    /**
     * 设置单元格信息
     *
     * @param value 单元格值
     * @param attr  注解相关
     * @param cell  单元格信息
     */
    public void setCellVo(Object value, Excel attr, Cell cell) {
        if (ColumnType.STRING == attr.cellType()) {
            cell.setCellValue(ObjectUtil.isNull(value) ? attr.defaultValue() : value + attr.suffix());
        } else if (ColumnType.NUMERIC == attr.cellType()) {
            if (ObjectUtil.isNotNull(value)) {
                cell.setCellValue(StringUtils.contains(Convert.toStr(value), ".") ? Convert.toDouble(value) : Convert.toInt(value));
            }
        } else if (ColumnType.IMAGE == attr.cellType()) {
            ClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), cell.getRow().getRowNum(), (short) (cell.getColumnIndex() + 1), cell.getRow().getRowNum() + 1);
            String imagePath = Convert.toStr(value);
            if (StringUtils.isNotEmpty(imagePath)) {
                byte[] data = ImageUtils.getImage(imagePath);
                getDrawingPatriarch(cell.getSheet()).createPicture(anchor,
                        cell.getSheet().getWorkbook().addPicture(data, getImageType(data)));
            }
        }
    }
    /**
     * 获取图片类型,设置图片插入类型
     */
    public int getImageType(byte[] value) {
        String type = FileUtil.getSuffix(Arrays.toString(value));
        if ("JPG".equalsIgnoreCase(type)) {
            return Workbook.PICTURE_TYPE_JPEG;
        } else if ("PNG".equalsIgnoreCase(type)) {
            return Workbook.PICTURE_TYPE_PNG;
        }
        return Workbook.PICTURE_TYPE_JPEG;
    }
    /**
     * 创建表格样式
     */
    public void setDataValidation(Excel attr, Row row, int column) {
        if (attr.name().contains("注：")) {
            sheet.setColumnWidth(column, 6000);
        } else {
            // 设置列宽
            sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256));
        }
        // 如果设置了提示信息则鼠标放上去提示.
        if (StringUtils.isNotEmpty(attr.prompt())) {
            // 这里默认设了2-101列提示.
            setXSSFPrompt(sheet, "", attr.prompt(), 1, 100, column, column);
        }
        // 如果设置了combo属性则本列只能选择不能输入
        if (attr.combo().length > 0) {
            // 这里默认设了2-101列只能选择不能输入.
            setXSSFValidation(sheet, attr.combo(), 1, 100, column, column);
        }
    }
    /**
     * 添加单元格
     */
    public Cell addCell(Excel attr, Row row, T vo, Field field, int column) {
        Cell cell = null;
        try {
            // 设置行高
            row.setHeight(maxHeight);
            // 根据Excel中设置情况决定是否导出,有些情况需要保持为空,希望用户填写这一列.
            if (attr.isExport()) {
                // 创建cell
                cell = row.createCell(column);
                int align = attr.align().value();
                cell.setCellStyle(styles.get("data" + (align >= 1 && align <= 3 ? align : "")));
                // 用于读取对象中的属性
                Object value = getTargetValue(vo, field, attr);
                String dateFormat = attr.dateFormat();
                String readConverterExp = attr.readConverterExp();
                String separator = attr.separator();
                String dictType = attr.dictType();
                if (StringUtils.isNotEmpty(dateFormat) && ObjectUtil.isNotNull(value)) {
                    cell.setCellValue(DateUtils.parseDateToStr(dateFormat, (Date) value));
                } else if (StringUtils.isNotEmpty(readConverterExp) && ObjectUtil.isNotNull(value)) {
                    cell.setCellValue(convertByExp(Convert.toStr(value), readConverterExp, separator));
                } else if (StringUtils.isNotEmpty(dictType) && ObjectUtil.isNotNull(value)) {
                    cell.setCellValue(convertDictByExp(Convert.toStr(value), dictType, separator));
                } else if (value instanceof BigDecimal && -1 != attr.scale()) {
                    cell.setCellValue((((BigDecimal) value).setScale(attr.scale(), attr.roundingMode())).toString());
                } else if (!attr.handler().equals(ExcelHandlerAdapter.class)) {
                    cell.setCellValue(dataFormatHandlerAdapter(value, attr));
                } else {
                    // 设置列类型
                    setCellVo(value, attr, cell);
                }
                addStatisticsData(column, Convert.toStr(value), attr);
            }
        } catch (Exception e) {
            log.error("导出Excel失败{}", e.getMessage());
        }
        return cell;
    }
    /**
     * 设置 POI XSSFSheet 单元格提示
     *
     * @param sheet         表单
     * @param promptTitle   提示标题
     * @param promptContent 提示内容
     * @param firstRow      开始行
     * @param endRow        结束行
     * @param firstCol      开始列
     * @param endCol        结束列
     */
    public void setXSSFPrompt(Sheet sheet, String promptTitle, String promptContent, int firstRow, int endRow,
                              int firstCol, int endCol) {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        DataValidationConstraint constraint = helper.createCustomConstraint("DD1");
        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
        DataValidation dataValidation = helper.createValidation(constraint, regions);
        dataValidation.createPromptBox(promptTitle, promptContent);
        dataValidation.setShowPromptBox(true);
        sheet.addValidationData(dataValidation);
    }
    /**
     * 设置某些列的值只能输入预制的数据,显示下拉框.
     *
     * @param sheet    要设置的sheet.
     * @param textlist 下拉框显示的内容
     * @param firstRow 开始行
     * @param endRow   结束行
     * @param firstCol 开始列
     * @param endCol   结束列
     */
    public void setXSSFValidation(Sheet sheet, String[] textlist, int firstRow, int endRow, int firstCol, int endCol) {
        DataValidationHelper helper = sheet.getDataValidationHelper();
        // 加载下拉列表内容
        DataValidationConstraint constraint = helper.createExplicitListConstraint(textlist);
        // 设置数据有效性加载在哪个单元格上,四个参数分别是：起始行、终止行、起始列、终止列
        CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol);
        // 数据有效性对象
        DataValidation dataValidation = helper.createValidation(constraint, regions);
        // 处理Excel兼容性问题
        if (dataValidation instanceof XSSFDataValidation) {
            dataValidation.setSuppressDropDownArrow(true);
            dataValidation.setShowErrorBox(true);
        } else {
            dataValidation.setSuppressDropDownArrow(false);
        }
        sheet.addValidationData(dataValidation);
    }
    /**
     * 数据处理器
     *
     * @param value 数据值
     * @param excel 数据注解
     * @return
     */
    public String dataFormatHandlerAdapter(Object value, Excel excel) {
        try {
            Object instance = excel.handler().newInstance();
            Method formatMethod = excel.handler().getMethod("format", new Class[]{Object.class, String[].class});
            value = formatMethod.invoke(instance, value, excel.args());
        } catch (Exception e) {
            log.error("不能格式化数据 " + excel.handler(), e.getMessage());
        }
        return Convert.toStr(value);
    }
    /**
     * 合计统计信息
     */
    private void addStatisticsData(Integer index, String text, Excel entity) {
        if (entity != null && entity.isStatistics()) {
            Double temp = 0D;
            if (!statistics.containsKey(index)) {
                statistics.put(index, temp);
            }
            try {
                temp = Double.valueOf(text);
            } catch (NumberFormatException e) {
            }
            statistics.put(index, statistics.get(index) + temp);
        }
    }
    /**
     * 创建统计行
     */
    public void addStatisticsRow() {
        if (statistics.size() > 0) {
            Row row = sheet.createRow(sheet.getLastRowNum() + 1);
            Set<Integer> keys = statistics.keySet();
            Cell cell = row.createCell(0);
            cell.setCellStyle(styles.get("total"));
            cell.setCellValue("合计");
            for (Integer key : keys) {
                cell = row.createCell(key);
                cell.setCellStyle(styles.get("total"));
                cell.setCellValue(DOUBLE_FORMAT.format(statistics.get(key)));
            }
            statistics.clear();
        }
    }
    /**
     * 编码文件名
     */
    public String encodingFilename(String filename) {
        filename = UUID.randomUUID().toString() + "_" + filename + ".xlsx";
        return filename;
    }
    /**
     * 获取下载路径
     *
     * @param filename 文件名称
     */
    public String getAbsoluteFile(String filename) {
        String downloadPath = ProjectConfig.getDownloadPath() + filename;
        File desc = new File(downloadPath);
        if (!desc.getParentFile().exists()) {
            desc.getParentFile().mkdirs();
        }
        return downloadPath;
    }
    /**
     * 获取bean中的属性值
     *
     * @param vo    实体对象
     * @param field 字段
     * @param excel 注解
     * @return 最终的属性值
     * @throws Exception
     */
    private Object getTargetValue(T vo, Field field, Excel excel) throws Exception {
        Object o = field.get(vo);
        if (StringUtils.isNotEmpty(excel.targetAttr())) {
            String target = excel.targetAttr();
            if (target.indexOf(".") > -1) {
                String[] targets = target.split("[.]");
                for (String name : targets) {
                    o = getValue(o, name);
                }
            } else {
                o = getValue(o, target);
            }
        }
        return o;
    }
    /**
     * 以类的属性的get方法方法形式获取值
     *
     * @param o
     * @param name
     * @return value
     * @throws Exception
     */
    private Object getValue(Object o, String name) throws Exception {
        if (ObjectUtil.isNotNull(o) && StringUtils.isNotEmpty(name)) {
            Class<?> clazz = o.getClass();
            Field field = clazz.getDeclaredField(name);
            field.setAccessible(true);
            o = field.get(o);
        }
        return o;
    }
    /**
     * 得到所有定义字段
     */
    private void createExcelField() {
        this.fields = getFields();
        this.fields = this.fields.stream().sorted(Comparator.comparing(objects -> ((Excel) objects[1]).sort())).collect(Collectors.toList());
        this.maxHeight = getRowHeight();
    }
    /**
     * 获取字段注解信息
     */
    public List<Object[]> getFields() {
        List<Object[]> fields = new ArrayList<Object[]>();
        List<Field> tempFields = new ArrayList<>();
        tempFields.addAll(Arrays.asList(clazz.getSuperclass().getDeclaredFields()));
        tempFields.addAll(Arrays.asList(clazz.getDeclaredFields()));
        for (Field field : tempFields) {
            // 单注解
            if (field.isAnnotationPresent(Excel.class)) {
                Excel attr = field.getAnnotation(Excel.class);
                if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) {
                    field.setAccessible(true);
                    fields.add(new Object[]{field, attr});
                }
            }
            // 多注解
            if (field.isAnnotationPresent(Excels.class)) {
                Excels attrs = field.getAnnotation(Excels.class);
                Excel[] excels = attrs.value();
                for (Excel attr : excels) {
                    if (attr != null && (attr.type() == Type.ALL || attr.type() == type)) {
                        field.setAccessible(true);
                        fields.add(new Object[]{field, attr});
                    }
                }
            }
        }
        return fields;
    }
    /**
     * 根据注解获取最大行高
     */
    public short getRowHeight() {
        double maxHeight = 0;
        for (Object[] os : this.fields) {
            Excel excel = (Excel) os[1];
            maxHeight = maxHeight > excel.height() ? maxHeight : excel.height();
        }
        return (short) (maxHeight * 20);
    }
    /**
     * 创建一个工作簿
     */
    public void createWorkbook() {
        this.wb = new SXSSFWorkbook(500);
        this.sheet = wb.createSheet();
        wb.setSheetName(0, sheetName);
        this.styles = createStyles(wb);
    }
    /**
     * 创建工作表
     *
     * @param sheetNo sheet数量
     * @param index   序号
     */
    public void createSheet(int sheetNo, int index) {
        // 设置工作表的名称.
        if (sheetNo > 1 && index > 0) {
            this.sheet = wb.createSheet();
            this.createTitle();
            String tempName = index + "_" + sheetName;
            log.info("sheet{}:{}", index, tempName);
            wb.setSheetName(index, tempName);
        }
    }
    /**
     * 获取单元格值
     *
     * @param row    获取的行
     * @param column 获取单元格列号
     * @return 单元格值
     */
    public Object getCellValue(Row row, int column) {
        if (row == null) {
            return row;
        }
        Object val = "";
        try {
            Cell cell = row.getCell(column);
            if (ObjectUtil.isNotNull(cell)) {
                if (cell.getCellType() == CellType.NUMERIC || cell.getCellType() == CellType.FORMULA) {
                    val = cell.getNumericCellValue();
                    if (DateUtil.isCellDateFormatted(cell)) {
                        val = DateUtil.getJavaDate((Double) val); // POI Excel 日期格式转换
                    } else {
                        if ((Double) val % 1 != 0) {
                            val = new BigDecimal(val.toString());
                        } else {
                            val = new DecimalFormat("0").format(val);
                        }
                    }
                } else if (cell.getCellType() == CellType.STRING) {
                    val = cell.getStringCellValue();
                } else if (cell.getCellType() == CellType.BOOLEAN) {
                    val = cell.getBooleanCellValue();
                } else if (cell.getCellType() == CellType.ERROR) {
                    val = cell.getErrorCellValue();
                }
            }
        } catch (Exception e) {
            return val;
        }
        return val;
    }
    /**
     * 判断是否是空行
     *
     * @param row 判断的行
     * @return
     */
    private boolean isRowEmpty(Row row) {
        if (row == null) {
            return true;
        }
        for (int i = row.getFirstCellNum(); i < row.getLastCellNum(); i++) {
            Cell cell = row.getCell(i);
            if (cell != null && cell.getCellType() != CellType.BLANK) {
                return false;
            }
        }
        return true;
    }
      public static void exportToExcelFile(String excelPath,String fileName,Map<String, String> headerMapping,List<Map<String,Object>> dataList, boolean isWriteHeader) throws IOException {
        try {
            excelPath = excelPath+ File.separator+fileName;
            File file = new File(excelPath);
            //创建一个工作薄
            Workbook workbook = new SXSSFWorkbook(5000);
            if (workbook != null) {
                //生成一个表格
                Sheet sheet = workbook.createSheet();
                List<String> headers = new ArrayList<String>();
                List<String> fields = new ArrayList<String>();
                for(Map.Entry<String,String> strKey : headerMapping.entrySet()) {
                    fields.add(strKey.getKey());
                    headers.add(strKey.getValue());
                }
                //生成表格标题行
                if(isWriteHeader) {
                    Row row = sheet.createRow(0);
                    for (int i = 0; i < headers.size(); i++) {
                        Cell cell = row.createCell(i);
                        cell.setCellValue(headers.get(i));
                    }
                }
                //生成数据部分
                if(dataList != null && dataList.size()>0){
                    int index = 0;
                    if(isWriteHeader) {
                        index = 0;
                    } else {
                        index = -1;
                    }
                    for(Map<String, Object> record : dataList){
                        index++;
                        Row newRow = sheet.createRow(index);
                        for (int i = 0; i < fields.size(); i++) {
                            Object value = record.get(fields.get(i).toLowerCase());
                            Cell cell = newRow.createCell(i);
                            if (value == null) {
                                cell.setCellValue("");
                            } else {
                                cell.setCellValue(String.valueOf(value));
                            }
                        }
                    }
                }
            }
            //创建文件流
            OutputStream stream = new FileOutputStream(excelPath);
            //写入数据
            workbook.write(stream);
            //关闭文件流
            stream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}