java使用poi操作excel導出爲html

最近做了個項目需要對excel進行發送郵件。但是有個需求是需要將excel裏面的sheet0的內容原本複製爲郵件的正文。樣式都要。所以只能操作excel轉爲html然後嵌套再郵件中發送了。

1.導入pom

 <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi</artifactId>
                <version>3.9</version>
            </dependency>
            <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi-ooxml</artifactId>
                <version>3.9</version>
            </dependency>

2.操作

package statement;
import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.*;
import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;
import statement.base.StringUtil;

import java.io.*;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @ClassName: PoiExcelToHtmlUtil
 * @Description: TODO(poi轉excel爲html)
 */
public class ExcelToHtml {
    private static  Map<String, Object> map[];

    public static  void main(String [] args){
        String html=excelWriteToHtml(filepath);
        System.out.print(html);
    }

    /**
     * 程序入口方法(讀取指定位置的excel,將其轉換成html形式的字符串,
     * @return <table>...</table> 字符串
     */
    public static String excelWriteToHtml(String sourcePath){
        File sourceFile = new File(sourcePath);
        try {
            InputStream fis = new FileInputStream(sourceFile);
            String excelHtml = ExcelToHtml.readExcelToHtml(fis, true);
            return excelHtml;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return null;
        }
    }
    /**
     * 程序入口方法(將指定路徑的excel文件讀取成字符串)
     * @param filePath 文件的路徑
     * @param isWithStyle 是否需要表格樣式 包含 字體 顏色 邊框 對齊方式
     * @return <table>...</table> 字符串
     */
    public static String readExcelToHtml(String filePath , boolean isWithStyle){
        InputStream is = null;
        String htmlExcel = null;
        try {
            File sourcefile = new File(filePath);
            is = new FileInputStream(sourcefile);
            Workbook wb = WorkbookFactory.create(is);
            htmlExcel = readWorkbook(wb, isWithStyle);
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return htmlExcel;
    }
    /**
     * 程序入口方法(將指定路徑的excel文件讀取成字符串)
     * @param is excel轉換成的輸入流
     * @param isWithStyle 是否需要表格樣式 包含 字體 顏色 邊框 對齊方式
     * @return <table>...</table> 字符串
     */
    public static String readExcelToHtml(InputStream is,boolean isWithStyle){
        String htmlExcel = null;
        try {
            Workbook wb = WorkbookFactory.create(is);
            htmlExcel = readWorkbook(wb,isWithStyle);
        } catch (Exception e) {
            e.printStackTrace();
        }finally{
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return htmlExcel;
    }

    /**
     * 根據excel的版本分配不同的讀取方法進行處理
     * @param wb
     * @param isWithStyle
     * @return
     */
    private static String readWorkbook(Workbook wb,boolean isWithStyle){
        String htmlExcel = "";
        if (wb instanceof XSSFWorkbook) {
            XSSFWorkbook xWb = (XSSFWorkbook) wb;
            htmlExcel = getExcelInfo(xWb, isWithStyle);
        }else if(wb instanceof HSSFWorkbook){
            HSSFWorkbook hWb = (HSSFWorkbook) wb;
            htmlExcel = getExcelInfo(hWb, isWithStyle);
        }
        return htmlExcel;
    }

    /**
     * 讀取excel成string
     * @param wb
     * @param isWithStyle
     * @return
     */
    public static String getExcelInfo(Workbook wb, boolean isWithStyle){

        StringBuffer sb = new StringBuffer();
        //獲取第一個Sheet的內容
        Sheet sheet = wb.getSheetAt(0);
        // map等待存儲excel圖片
        Map<String, PictureData> sheetIndexPicMap = getSheetPictrues(0, sheet, wb);
        //臨時保存位置,正式環境根據部署環境存放其他位置
        try {
            if(sheetIndexPicMap != null)
                printImg(sheetIndexPicMap);
        } catch (IOException e) {
            e.printStackTrace();
        }

        //讀取excel拼裝html
        int lastRowNum = sheet.getLastRowNum();
        map = getRowSpanColSpanMap(sheet);
        sb.append("<table style='border-collapse:collapse;width:100%;'>");
        Row row = null;        //兼容
        Cell cell = null;    //兼容

        for (int rowNum = sheet.getFirstRowNum(); rowNum <= lastRowNum; rowNum ++) {
            if(rowNum > 1000) break;
            row = sheet.getRow(rowNum);

            int lastColNum = ExcelToHtml.getColsOfTable(sheet)[0];
            int rowHeight = ExcelToHtml.getColsOfTable(sheet)[1];

            if(null != row) {
                lastColNum = row.getLastCellNum();
                rowHeight = row.getHeight();
            }

            if (null == row) {
                sb.append("<tr><td >  </td></tr>");
                continue;
            }else if(row.getZeroHeight()){
                continue;
            }else if(0 == rowHeight){
                continue;     //針對jxl的隱藏行(此類隱藏行只是把高度設置爲0,單getZeroHeight無法識別)
            }
            sb.append("<tr>");

            for (int colNum = 0; colNum < lastColNum; colNum ++) {
                if(sheet.isColumnHidden(colNum))	continue;
                String imageRowNum = "0_" + rowNum + "_" + colNum;
                String imageHtml = "";
                cell = row.getCell(colNum);
                if ((sheetIndexPicMap != null && !sheetIndexPicMap.containsKey(imageRowNum) || sheetIndexPicMap == null) && cell == null) {    //特殊情況 空白的單元格會返回null+//判斷該單元格是否包含圖片,爲空時也可能包含圖片
                    sb.append("<td>  </td>");
                    continue;
                }
                if(sheetIndexPicMap!=null && sheetIndexPicMap.containsKey(imageRowNum)){
                    //待修改路徑
                    String imagePath = "D:/pic" + imageRowNum + ".jpeg";

                    imageHtml = "<img src='" + imagePath + "' style='height:" + rowHeight / 20 + "px;'>";
                }
                String stringValue = getCellValue(cell);
                if (map[0].containsKey(rowNum + "," + colNum)) {
                    String pointString = (String)map[0].get(rowNum + "," + colNum);
                    int bottomeRow = Integer.valueOf(pointString.split(",")[0]);
                    int bottomeCol = Integer.valueOf(pointString.split(",")[1]);
                    int rowSpan = bottomeRow - rowNum + 1;
                    int colSpan = bottomeCol - colNum + 1;
                    if(map[2].containsKey(rowNum + "," + colNum)){
                        rowSpan = rowSpan - (Integer)map[2].get(rowNum + "," + colNum);
                    }
                    sb.append("<td rowspan= '" + rowSpan + "' colspan= '"+ colSpan + "' ");
                    if(map.length > 3 && map[3].containsKey(rowNum + "," + colNum)){
                        //此類數據首行被隱藏,value爲空,需使用其他方式獲取值
                        stringValue = getMergedRegionValue(sheet, rowNum, colNum);
                    }
                } else if (map[1].containsKey(rowNum + "," + colNum)) {
                    map[1].remove(rowNum + "," + colNum);
                    continue;
                } else {
                    sb.append("<td ");
                }

                //判斷是否需要樣式
                if(isWithStyle){
                    dealExcelStyle(wb, sheet, cell, sb);//處理單元格樣式
                }

                sb.append(">");
                if(sheetIndexPicMap!=null && sheetIndexPicMap.containsKey(imageRowNum)) sb.append(imageHtml);
                if (stringValue == null || "".equals(stringValue.trim())) {
                    sb.append("   ");
                } else {
                    // 將ascii碼爲160的空格轉換爲html下的空格( )
                    sb.append(stringValue.replace(String.valueOf((char) 160)," "));
                }
                sb.append("</td>");
            }
            sb.append("</tr>");
            continue;
        }
        sb.append("</table>");
        return sb.toString();
    }

    /**
     * 分析excel表格,記錄合併單元格相關的參數,用於之後html頁面元素的合併操作
     * @param sheet
     * @return
     */
    private static Map<String, Object>[] getRowSpanColSpanMap(Sheet sheet) {
        Map<String, String> map0 = new HashMap<String, String>();	//保存合併單元格的對應起始和截止單元格
        Map<String, String> map1 = new HashMap<String, String>();	//保存被合併的那些單元格
        Map<String, Integer> map2 = new HashMap<String, Integer>();	//記錄被隱藏的單元格個數
        Map<String, String> map3 = new HashMap<String, String>();	//記錄合併了單元格,但是合併的首行被隱藏的情況
        int mergedNum = sheet.getNumMergedRegions();
        CellRangeAddress range = null;
        Row row = null;
        for (int i = 0; i < mergedNum; i++) {
            range = sheet.getMergedRegion(i);
            int topRow = range.getFirstRow();
            int topCol = range.getFirstColumn();
            int bottomRow = range.getLastRow();
            int bottomCol = range.getLastColumn();
            /**
             * 此類數據爲合併了單元格的數據
             * 1.處理隱藏(只處理行隱藏,列隱藏poi已經處理)
             */
            if(topRow != bottomRow){
                int zeroRoleNum = 0;
                int tempRow = topRow;
                for(int j = topRow; j <= bottomRow; j ++){
                    row = sheet.getRow(j);
                    if(row.getZeroHeight() || row.getHeight() == 0){
                        if(j == tempRow){
                            //首行就進行隱藏,將rowTop向後移
                            tempRow ++;
                            continue;//由於top下移,後面計算rowSpan時會扣除移走的列,所以不必增加zeroRoleNum;
                        }
                        zeroRoleNum ++;
                    }
                }
                if(tempRow != topRow){
                    map3.put(tempRow + "," + topCol,topRow + "," + topCol);
                    topRow = tempRow;
                }
                if(zeroRoleNum!=0) map2.put(topRow + "," + topCol, zeroRoleNum);
            }
            map0.put(topRow + "," + topCol, bottomRow + "," + bottomCol);
            int tempRow = topRow;
            while (tempRow <= bottomRow) {
                int tempCol = topCol;
                while (tempCol <= bottomCol) {
                    map1.put(tempRow + "," + tempCol, topRow + "," + topCol);
                    tempCol++;
                }
                tempRow++;
            }
            map1.remove(topRow + "," + topCol);
        }
        Map[] map = { map0, map1 ,map2,map3};
        System.err.println(map0);
        return map;
    }


    /**
     * 獲取合併單元格的值
     * @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 ;
    }
    /**
     * 獲取表格單元格Cell內容
     * @param cell
     * @return
     */
    private static String getCellValue(Cell cell) {
        String result = new String();
        switch (cell.getCellType()) {
            case Cell.CELL_TYPE_NUMERIC:// 數字類型
                if (HSSFDateUtil.isCellDateFormatted(cell)) {// 處理日期格式、時間格式
                    SimpleDateFormat sdf = null;
                    if (cell.getCellStyle().getDataFormat() == HSSFDataFormat.getBuiltinFormat("h:mm")) {
                        sdf = new SimpleDateFormat("HH:mm");
                    } else {// 日期
                        sdf = new SimpleDateFormat("yyyy-MM-dd");
                    }
                    Date date = cell.getDateCellValue();
                    result = sdf.format(date);
                } else if (cell.getCellStyle().getDataFormat() == 58) {
                    // 處理自定義日期格式:m月d日(通過判斷單元格的格式id解決,id的值是58)
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                    double value = cell.getNumericCellValue();
                    Date date = org.apache.poi.ss.usermodel.DateUtil
                            .getJavaDate(value);
                    result = sdf.format(date);
                } else {
                    double value = cell.getNumericCellValue();

                    CellStyle style = cell.getCellStyle();
                    DecimalFormat format = new DecimalFormat();
                    String temp = style.getDataFormatString();
                    // 單元格設置成常規
                    if (StringUtil.isNotBlank(temp) &&temp.equals("General")) {
                        format.applyPattern("#");
                    }
                    //判斷百分數,對百分數做操作
                    if(StringUtil.isNotBlank(cell.getCellStyle().getDataFormatString()) && cell.getCellStyle().getDataFormatString().indexOf("%") != -1 ){
                        try {
                            double a=cell.getNumericCellValue();
                            double b=a*100;
                            String c=String.format("%.1f", b);
                            result= c+"%";
                        }catch (IllegalStateException e){
                            result = format.format(value);
                        }
                    }else{
                        result = format.format(value);
                    }
                }
                break;
            case Cell.CELL_TYPE_STRING:// String類型
                result = cell.getRichStringCellValue().toString();
                break;
            case Cell.CELL_TYPE_BLANK://空值
                result = "";
                break;
            case Cell.CELL_TYPE_FORMULA://公示
                if(cell.getCellStyle().getDataFormatString().indexOf("%") != -1 ){
                    try {
                        double a=cell.getNumericCellValue();
                        double b=a*100;
                        String c=String.format("%.1f", b);
                        result= c+"%";
                    }catch (IllegalStateException e){
                        result =((XSSFCell) cell).getRawValue();
                    }
                }else{
                    result =((XSSFCell) cell).getRawValue();
                }
                break;
            default:
                result = "";
                break;
        }
        return result;
    }

    /**
     * 處理表格樣式
     * @param wb
     * @param sheet
     * @param cell
     * @param sb
     */
    private static void dealExcelStyle(Workbook wb, Sheet sheet, Cell cell, StringBuffer sb){
        CellStyle cellStyle = cell.getCellStyle();
        if (cellStyle != null) {
            short alignment = cellStyle.getAlignment();
            sb.append("align='" + convertAlignToHtml(alignment) + "' ");//單元格內容的水平對齊方式
            short verticalAlignment = cellStyle.getVerticalAlignment();
            sb.append("valign='"+ convertVerticalAlignToHtml(verticalAlignment)+ "' ");//單元格中內容的垂直排列方式

            if (wb instanceof XSSFWorkbook) {

                XSSFFont xf = ((XSSFCellStyle) cellStyle).getFont();
                short boldWeight = xf.getBoldweight();
                sb.append("style='");
                sb.append("font-weight:" + boldWeight + ";"); // 字體加粗
                sb.append("font-size: " + xf.getFontHeight() / 2 + "%;"); // 字體大小

                int topRow = cell.getRowIndex(),topColumn = cell.getColumnIndex();
                if(map[0].containsKey(topRow+","+topColumn)){//該單元格爲合併單元格,寬度需要獲取所有單元格寬度後合併
                    String value = (String)map[0].get(topRow+","+topColumn);
                    String[] ary = value.split(",");
                    int bottomColumn = Integer.parseInt(ary[1]);
                    if(topColumn!=bottomColumn){//合併列,需要計算相應寬度
                        int columnWidth = 0;
                        for(int i=topColumn;i<=bottomColumn;i++){
                            columnWidth += sheet.getColumnWidth(i);
                        }
                        sb.append("width:" + columnWidth/300*xf.getFontHeight()/20 + "pt;");
                    }else{
                        int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ;
                        sb.append("width:" + columnWidth/300*xf.getFontHeight()/20 + "pt;");
                    }
                }else{
                    int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ;
                    sb.append("width:" + columnWidth/300*xf.getFontHeight()/20 + "pt;");
                }

                XSSFColor xc = xf.getXSSFColor();
                if (xc != null && !"".equals(xc.toString())) {
                    sb.append("color:#" + xc.getARGBHex().substring(2) + ";"); // 字體顏色
                }

                XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor();
                if (bgColor != null && !"".equals(bgColor.toString())) {
                    sb.append("background-color:#" + bgColor.getARGBHex().substring(2) + ";"); // 背景顏色
                }
                sb.append("border:solid #000000 1px;");
                //                sb.append(getBorderStyle(0,cellStyle.getBorderTop(), ((XSSFCellStyle) cellStyle).getTopBorderXSSFColor()));
                //                sb.append(getBorderStyle(1,cellStyle.getBorderRight(), ((XSSFCellStyle) cellStyle).getRightBorderXSSFColor()));
                //                sb.append(getBorderStyle(2,cellStyle.getBorderBottom(), ((XSSFCellStyle) cellStyle).getBottomBorderXSSFColor()));
                //                sb.append(getBorderStyle(3,cellStyle.getBorderLeft(), ((XSSFCellStyle) cellStyle).getLeftBorderXSSFColor()));
            }else if(wb instanceof HSSFWorkbook){
                HSSFFont hf = ((HSSFCellStyle) cellStyle).getFont(wb);
                short boldWeight = hf.getBoldweight();
                short fontColor = hf.getColor();
                sb.append("style='");

                HSSFPalette palette = ((HSSFWorkbook) wb).getCustomPalette(); // 類HSSFPalette用於求的顏色的國際標準形式
                HSSFColor hc = palette.getColor(fontColor);
                sb.append("font-weight:" + boldWeight + ";"); // 字體加粗
                sb.append("font-size: " + hf.getFontHeight() / 2 + "%;"); // 字體大小
                String fontColorStr = convertToStardColor(hc);
                if (fontColorStr != null && !"".equals(fontColorStr.trim())) {
                    sb.append("color:" + fontColorStr + ";"); // 字體顏色
                }

                int topRow = cell.getRowIndex(),topColumn = cell.getColumnIndex();
                if(map[0].containsKey(topRow + "," + topColumn)){//該單元格爲合併單元格,寬度需要獲取所有單元格寬度後合併
                    String value = (String)map[0].get(topRow + "," + topColumn);
                    String[] ary = value.split(",");
                    int bottomColumn = Integer.parseInt(ary[1]);
                    if(topColumn != bottomColumn){//合併列,需要計算相應寬度
                        int columnWidth = 0;
                        for(int i = topColumn; i <= bottomColumn; i++){
                            columnWidth += sheet.getColumnWidth(i);
                        }
                        sb.append("width:" + columnWidth / 300 * hf.getFontHeight() / 20 + "pt;");
                    }else{
                        int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ;
                        sb.append("width:" + columnWidth / 300 * hf.getFontHeight() / 20 + "pt;");
                    }
                }else{
                    int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ;
                    sb.append("width:" + columnWidth / 300 * hf.getFontHeight() / 20 + "pt;");
                }

                short bgColor = cellStyle.getFillForegroundColor();
                hc = palette.getColor(bgColor);
                String bgColorStr = convertToStardColor(hc);
                if (bgColorStr != null && !"".equals(bgColorStr.trim())) {
                    sb.append("background-color:" + bgColorStr + ";"); 		// 背景顏色
                }
                sb.append("border:solid #000000 1px;");
            }
            sb.append("' ");
        }
    }

    /**
     * 單元格內容的水平對齊方式
     * @param alignment
     * @return
     */
    private static String convertAlignToHtml(short alignment) {
        String align = "left";
        switch (alignment) {
            case CellStyle.ALIGN_LEFT:
                align = "left";
                break;
            case CellStyle.ALIGN_CENTER:
                align = "center";
                break;
            case CellStyle.ALIGN_RIGHT:
                align = "right";
                break;
            default:
                break;
        }
        return align;
    }

    /**
     * 單元格中內容的垂直排列方式
     * @param verticalAlignment
     * @return
     */
    private static String convertVerticalAlignToHtml(short verticalAlignment) {
        String valign = "middle";
        switch (verticalAlignment) {
            case CellStyle.VERTICAL_BOTTOM:
                valign = "bottom";
                break;
            case CellStyle.VERTICAL_CENTER:
                valign = "center";
                break;
            case CellStyle.VERTICAL_TOP:
                valign = "top";
                break;
            default:
                break;
        }
        return valign;
    }

    private static String convertToStardColor(HSSFColor hc) {
        StringBuffer sb = new StringBuffer("");
        if (hc != null) {
            if (HSSFColor.AUTOMATIC.index == hc.getIndex()) {
                return null;
            }
            sb.append("#");
            for (int i = 0; i < hc.getTriplet().length; i ++) {
                sb.append(fillWithZero(Integer.toHexString(hc.getTriplet()[i])));
            }
        }
        return sb.toString();
    }

    private static String fillWithZero(String str) {
        if (str != null && str.length() < 2) {
            return "0" + str;
        }
        return str;
    }

    static String[] bordesr = {"border-top:", "border-right:", "border-bottom:", "border-left:"};
    static String[] borderStyles = {"solid ", "solid ", "solid ", "solid ", "solid ", "solid ", "solid ", "solid ", "solid ", "solid", "solid", "solid", "solid", "solid"};

    @SuppressWarnings("unused")
    private static  String getBorderStyle(HSSFPalette palette , int b, short s, short t){
        if(s == 0) return  bordesr[b] + borderStyles[s] + "#d0d7e5 1px;";
        String borderColorStr = convertToStardColor( palette.getColor(t));
        borderColorStr = borderColorStr == null || borderColorStr.length() < 1 ? "#000000" : borderColorStr;
        return bordesr[b] + borderStyles[s] + borderColorStr + " 1px;";
    }

    @SuppressWarnings("unused")
    private static  String getBorderStyle(int b, short s, XSSFColor xc){
        if(s == 0)return  bordesr[b] + borderStyles[s] + "#d0d7e5 1px;";
        if (xc != null && ! "".equals(xc)) {
            String borderColorStr = xc.getARGBHex();//t.getARGBHex();
            borderColorStr=borderColorStr == null || borderColorStr.length() < 1 ? "#000000" : borderColorStr.substring(2);
            return bordesr[b] + borderStyles[s]+borderColorStr+" 1px;";
        }
        return "";
    }

    @SuppressWarnings("unused")
    private static void writeFile(String content, String path) {
        OutputStream os = null;
        BufferedWriter bw = null;
        try {
            File file = new File(path);
            os = new FileOutputStream(file);
            bw = new BufferedWriter(new OutputStreamWriter(os,"GBK"));
            bw.write(content);
        } catch (FileNotFoundException fnfe) {
            fnfe.printStackTrace();
        } catch (IOException ioe) {
            ioe.printStackTrace();
        } finally {
            try {
                if (null != bw)
                    bw.close();
                if (null != os)
                    os.close();
            } catch (IOException ie) {
                ie.printStackTrace();
            }
        }
    }


    /**
     * 獲取Excel圖片公共方法
     * @param sheetNum 當前sheet編號
     * @param sheet 當前sheet對象
     * @param workbook 工作簿對象
     * @return Map key:圖片單元格索引(0_1_1)String,value:圖片流PictureData
     */
    public static Map<String, PictureData> getSheetPictrues(int sheetNum, Sheet sheet, Workbook workbook) {
        if(workbook instanceof  HSSFWorkbook){
            return getSheetPictrues03(sheetNum, (HSSFSheet) sheet, (HSSFWorkbook) workbook);
        }else if(workbook instanceof  XSSFWorkbook){
            return getSheetPictrues07(sheetNum, (XSSFSheet) sheet, (XSSFWorkbook) workbook);
        }else{
            return null;
        }
    }

    /**
     * 獲取Excel2003圖片
     * @param sheetNum 當前sheet編號
     * @param sheet 當前sheet對象
     * @param workbook 工作簿對象
     * @return Map key:圖片單元格索引(0_1_1)String,value:圖片流PictureData
     * @throws IOException
     */
    private static Map<String, PictureData> getSheetPictrues03(int sheetNum,
                                                               HSSFSheet sheet, HSSFWorkbook workbook) {

        Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>();
        List<HSSFPictureData> pictures = workbook.getAllPictures();
        if (pictures.size() != 0) {
            for (HSSFShape shape : sheet.getDrawingPatriarch().getChildren()) {
                HSSFClientAnchor anchor = (HSSFClientAnchor) shape.getAnchor();
                shape.getLineWidth();
                if (shape instanceof HSSFPicture) {
                    HSSFPicture pic = (HSSFPicture) shape;
                    int pictureIndex = pic.getPictureIndex() - 1;
                    HSSFPictureData picData = pictures.get(pictureIndex);
                    String picIndex = String.valueOf(sheetNum) + "_"
                            + String.valueOf(anchor.getRow1()) + "_"
                            + String.valueOf(anchor.getCol1());
                    sheetIndexPicMap.put(picIndex, picData);
                }
            }
            return sheetIndexPicMap;
        } else {
            return null;
        }
    }

    /**
     * 獲取Excel2007圖片
     * @param sheetNum 當前sheet編號
     * @param sheet 當前sheet對象
     * @param workbook 工作簿對象
     * @return Map key:圖片單元格索引(0_1_1)String,value:圖片流PictureData
     */
    private static Map<String, PictureData> getSheetPictrues07(int sheetNum,XSSFSheet sheet, XSSFWorkbook workbook) {
        Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>();
        for (POIXMLDocumentPart dr : sheet.getRelations()) {
            if (dr instanceof XSSFDrawing) {
                XSSFDrawing drawing = (XSSFDrawing) dr;
                List<XSSFShape> shapes = drawing.getShapes();
                for (XSSFShape shape : shapes) {
                    XSSFPicture pic = (XSSFPicture) shape;
                    XSSFClientAnchor anchor = pic.getPreferredSize();
                    CTMarker ctMarker = anchor.getFrom();
                    String picIndex = String.valueOf(sheetNum) + "_"+ ctMarker.getRow() + "_" + ctMarker.getCol();
                    sheetIndexPicMap.put(picIndex, pic.getPictureData());
                }
            }
        }

        return sheetIndexPicMap;
    }

    public static void printImg(List<Map<String, PictureData>> sheetList) throws IOException {
        for (Map<String, PictureData> map : sheetList) {
            printImg(map);
        }
    }

    public static void printImg(Map<String, PictureData> map) throws IOException {
        Object key[] = map.keySet().toArray();
        for (int i = 0; i < map.size(); i++) {
            // 獲取圖片流
            PictureData pic = map.get(key[i]);
            // 獲取圖片索引
            String picName = key[i].toString();
            // 獲取圖片格式
            String ext = pic.suggestFileExtension();

            byte[] data = pic.getData();

            FileOutputStream out = new FileOutputStream("C:/Users/admin/Desktop/liuzhiling" + picName + "." + ext);
            out.write(data);
            out.flush();
            out.close();
        }
    }

    private static int[] getColsOfTable(Sheet sheet) {

        int[] data = {0, 0};
        for(int i = sheet.getFirstRowNum(); i < sheet.getLastRowNum(); i ++) {
            if(null != sheet.getRow(i)) {
                data[0] = sheet.getRow(i).getLastCellNum();
                data[1] = sheet.getRow(i).getHeight();
            }else
                continue;
        }
        return data;
    }
}

 

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