Excel在线预览(通过poi转html,含里面的图片)

支持03和07excel转html,直接上代码

测试类

/**
 * 主方法
 * @author asus
 *
 */
public class App2 {
    
    public static void main(String[] args) {
        
            ExcelToHtml.excelToHtml("C:\\Users\\asus\\Desktop\\xxx.xlsx", "E:/test.html");
        
    }
}

业务逻辑类

package com.topcheer.html;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.poi.POIXMLDocumentPart;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.hssf.usermodel.HSSFDataFormat;
import org.apache.poi.hssf.usermodel.HSSFDateUtil;
import org.apache.poi.hssf.usermodel.HSSFFont;
import org.apache.poi.hssf.usermodel.HSSFPalette;
import org.apache.poi.hssf.usermodel.HSSFPicture;
import org.apache.poi.hssf.usermodel.HSSFPictureData;
import org.apache.poi.hssf.usermodel.HSSFShape;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
import org.apache.poi.ss.usermodel.PictureData;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.xssf.usermodel.XSSFCellStyle;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFDrawing;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFPicture;
import org.apache.poi.xssf.usermodel.XSSFShape;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker;
/**
 * Excel转html
 *
 */
public class ExcelToHtml {
    
       private static String UPLOAD_FILE="E:/";


     /**
     * 测试
     * 
     * @param args
     */
    public static void excelToHtml(String path,String htmlPositon) {
        InputStream is = null;
        String htmlExcel = null;
        String[] str = path.split("/");
        String fileName = str[str.length-1];
        try {
            File sourcefile = new File(path);
            is = new FileInputStream(sourcefile);
            Workbook wb = WorkbookFactory.create(is);// 此WorkbookFactory在POI-3.10版本中使用需要添加dom4j
            if (wb instanceof XSSFWorkbook) {
                XSSFWorkbook xWb = (XSSFWorkbook) wb;
                htmlExcel = ExcelToHtml.getExcelInfo(xWb, true);
            } else if (wb instanceof HSSFWorkbook) {
                HSSFWorkbook hWb = (HSSFWorkbook) wb;
                htmlExcel = ExcelToHtml.getExcelInfo(hWb, true);
            }
            writeFile(htmlExcel,htmlPositon,fileName);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                is.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    
    @SuppressWarnings("resource")
    private static void writeFile(String content,String htmlPath, String fileName){
        File file2 = new File(htmlPath);
        StringBuilder sb = new StringBuilder();
        try {
            file2.createNewFile();//创建文件
 
            sb.append(""+fileName+"");
            sb.append("
"); sb.append(content); sb.append("
"); sb.append(""); PrintStream printStream = new PrintStream(new FileOutputStream(file2)); printStream.println(sb.toString());//将字符串写入文件 } catch (IOException e) { e.printStackTrace(); } } /** * 程序入口方法 * * @param filePath * 文件的路径 * @param isWithStyle * 是否需要表格样式 包含 字体 颜色 边框 对齐方式 * @return * * ... *
* 字符串 */ public 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); if (wb instanceof XSSFWorkbook) { XSSFWorkbook xWb = (XSSFWorkbook) wb; htmlExcel = ExcelToHtml.getExcelInfo(xWb, isWithStyle); } else if (wb instanceof HSSFWorkbook) { HSSFWorkbook hWb = (HSSFWorkbook) wb; htmlExcel = ExcelToHtml.getExcelInfo(hWb, isWithStyle); } } catch (Exception e) { e.printStackTrace(); } finally { try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return htmlExcel; } public static String getExcelInfo(Workbook wb, boolean isWithStyle) { StringBuffer sb = new StringBuffer(); for(int i=0;i map[] = getRowSpanColSpanMap(sheet); sb.append("

"+sheetName+"

"); sb.append(""); // map等待存储excel图片 Map sheetIndexPicMap = getSheetPictrues(i, sheet, wb); Map imgMap = new HashMap(); if (sheetIndexPicMap != null) { imgMap = printImg(sheetIndexPicMap); printImpToWb(imgMap, wb); } Row row = null; // 兼容 Cell cell = null; // 兼容 for (int rowNum = sheet.getFirstRowNum(); rowNum <= lastRowNum; rowNum++) { row = sheet.getRow(rowNum); if (row == null) { sb.append(""); continue; } sb.append(""); int lastColNum = row.getLastCellNum(); for (int colNum = 0; colNum < lastColNum; colNum++) { cell = row.getCell(colNum); if (cell == null) { // 特殊情况 空白的单元格会返回null sb.append(""); continue; } String imageHtml = ""; String imageRowNum = i + "_" + rowNum + "_" + colNum; if (sheetIndexPicMap != null && sheetIndexPicMap.containsKey(imageRowNum)) { String imagePath = imgMap.get(imageRowNum); imageHtml = ""; } String stringValue = getCellValue(cell); if (map[0].containsKey(rowNum + "," + colNum)) { String pointString = map[0].get(rowNum + "," + colNum); map[0].remove(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; sb.append(""); } sb.append(""); } sb.append("
 
 "); if (sheetIndexPicMap != null && sheetIndexPicMap.containsKey(imageRowNum)) { sb.append(imageHtml); } if (stringValue == null || "".equals(stringValue.trim())) { sb.append("   "); } else { // 将ascii码为160的空格转换为html下的空格( ) sb.append(stringValue.replace(String.valueOf((char) 160), " ")); } sb.append("
"); } return sb.toString(); } /** * 获取Excel图片公共方法 * * @param sheetNum 当前sheet编号 * @param sheet 当前sheet对象 * @param workbook 工作簿对象 * @return Map key:图片单元格索引(0_1_1)String,value:图片流PictureData */ public static Map 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; } } /** * 获取Excel2003图片 * * @param sheetNum 当前sheet编号 * @param sheet 当前sheet对象 * @param workbook 工作簿对象 * @return Map key:图片单元格索引(0_1_1)String,value:图片流PictureData * @throws IOException */ private static Map getSheetPictrues03(int sheetNum, HSSFSheet sheet, HSSFWorkbook workbook) { Map sheetIndexPicMap = new HashMap(); List 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; } } /** * 获取Excel2007图片 * * @param sheetNum 当前sheet编号 * @param sheet 当前sheet对象 * @param workbook 工作簿对象 * @return Map key:图片单元格索引(0_1_1)String,value:图片流PictureData */ private static Map getSheetPictrues07(int sheetNum, XSSFSheet sheet, XSSFWorkbook workbook) { Map sheetIndexPicMap = new HashMap(); for (POIXMLDocumentPart dr : sheet.getRelations()) { if (dr instanceof XSSFDrawing) { XSSFDrawing drawing = (XSSFDrawing) dr; List 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; } /** * 对图片单元格赋值使其可读取到 *

add by CJ 2018年5月21日

* * @param imgMap * @param wb */ @SuppressWarnings("unused") private static void printImpToWb(Map imgMap, Workbook wb) { Sheet sheet = null; Row row = null; String[] sheetRowCol = new String[3]; for (String key : imgMap.keySet()) { sheetRowCol = key.split("_"); sheet = wb.getSheetAt(Integer.parseInt(sheetRowCol[0])); row = sheet.getRow(Integer.parseInt(sheetRowCol[1])) == null ? sheet.createRow(Integer.parseInt(sheetRowCol[1])) : sheet.getRow(Integer.parseInt(sheetRowCol[1])); Cell cell = row.getCell(Integer.parseInt(sheetRowCol[2])) == null ? row.createCell(Integer.parseInt(sheetRowCol[2])) : row.getCell(Integer.parseInt(sheetRowCol[2])); } } public static Map printImg(Map map) { Map imgMap = new HashMap(); String imgName = null; try { Object key[] = map.keySet().toArray(); for (int i = 0; i < map.size(); i++) { // 获取图片流 PictureData pic = map.get(key[i]); // 获取图片索引 String picName = key[i].toString(); // 获取图片格式 String ext = pic.suggestFileExtension(); byte[] data = pic.getData(); File uploadFile = new File(UPLOAD_FILE); if (!uploadFile.exists()) { uploadFile.mkdirs(); } imgName = picName + "_" + new Date().getTime() + "." + ext; FileOutputStream out = new FileOutputStream(UPLOAD_FILE + imgName); imgMap.put(picName, UPLOAD_FILE + imgName); out.write(data); out.flush(); out.close(); } } catch (Exception e) { } return imgMap; } @SuppressWarnings("unchecked") private static Map[] getRowSpanColSpanMap(Sheet sheet) { Map map0 = new HashMap(); Map map1 = new HashMap(); int mergedNum = sheet.getNumMergedRegions(); CellRangeAddress range = 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(); map0.put(topRow + "," + topCol, bottomRow + "," + bottomCol); // System.out.println(topRow + "," + topCol + "," + bottomRow + "," // + bottomCol); int tempRow = topRow; while (tempRow <= bottomRow) { int tempCol = topCol; while (tempCol <= bottomCol) { map1.put(tempRow + "," + tempCol, ""); tempCol++; } tempRow++; } map1.remove(topRow + "," + topCol); } @SuppressWarnings("rawtypes") Map[] map = { map0, map1 }; return map; } /** * 获取表格单元格Cell内容 * * @param cell * @return */ private static String getCellValue(Cell cell) { String result = new String(); switch (cell.getCellType()) { case Cell.CELL_TYPE_NUMERIC:// 数字类型 if (HSSFDateUtil.isCellDateFormatted(cell)) {// 处理日期格式、时间格式 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) { // 处理自定义日期格式:m月d日(通过判断单元格的格式id解决,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(); // 单元格设置成常规 if (temp.equals("General")) { format.applyPattern("#"); } result = format.format(value); } break; case Cell.CELL_TYPE_STRING:// String类型 result = cell.getRichStringCellValue().toString(); break; case Cell.CELL_TYPE_BLANK: result = ""; break; default: result = ""; break; } return result; } /** * 处理表格样式 * * @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) + "' ");// 单元格内容的水平对齐方式 short verticalAlignment = cellStyle.getVerticalAlignment(); sb.append("valign='" + convertVerticalAlignToHtml(verticalAlignment) + "' ");// 单元格中内容的垂直排列方式 if (wb instanceof XSSFWorkbook) { XSSFFont xf = ((XSSFCellStyle) cellStyle).getFont(); short boldWeight = xf.getBoldweight(); sb.append("style='"); sb.append("font-weight:" + boldWeight + ";"); // 字体加粗 sb.append("font-size: " + xf.getFontHeight() / 2 + "%;"); // 字体大小 int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()); sb.append("width:" + columnWidth + "px;"); XSSFColor xc = xf.getXSSFColor(); if (xc != null && !"".equals(xc)) { String string = xc.getARGBHex(); if(string!=null&& !"".equals(string)) { sb.append("color:#" + string.substring(2) + ";"); // 字体颜色 } } XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor(); if (bgColor != null && !"".equals(bgColor) && bgColor!=null) { String argbHex = bgColor.getARGBHex(); if(argbHex!=null && !"".equals(argbHex)) { sb.append("background-color:#" + argbHex.substring(2) + ";"); // 背景颜色 } } 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(); // 类HSSFPalette用于求的颜色的国际标准形式 HSSFColor hc = palette.getColor(fontColor); sb.append("font-weight:" + boldWeight + ";"); // 字体加粗 sb.append("font-size: " + hf.getFontHeight() / 2 + "%;"); // 字体大小 String fontColorStr = convertToStardColor(hc); if (fontColorStr != null && !"".equals(fontColorStr.trim())) { sb.append("color:" + fontColorStr + ";"); // 字体颜色 } int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()); sb.append("width:" + columnWidth + "px;"); short bgColor = cellStyle.getFillForegroundColor(); hc = palette.getColor(bgColor); String bgColorStr = convertToStardColor(hc); if (bgColorStr != null && !"".equals(bgColorStr.trim())) { sb.append("background-color:" + bgColorStr + ";"); // 背景颜色 } sb.append(getBorderStyle(palette, 0, cellStyle.getBorderTop(), cellStyle.getTopBorderColor())); sb.append(getBorderStyle(palette, 1, cellStyle.getBorderRight(), cellStyle.getRightBorderColor())); sb.append(getBorderStyle(palette, 3, cellStyle.getBorderLeft(), cellStyle.getLeftBorderColor())); sb.append(getBorderStyle(palette, 2, cellStyle.getBorderBottom(), cellStyle.getBottomBorderColor())); } sb.append("' "); } } /** * 单元格内容的水平对齐方式 * * @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; } /** * 单元格中内容的垂直排列方式 * * @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" }; 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;"; } 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 ""; } }

pom.xml (包含部分ppt转html的包)


    
        
            fr.opensagres.xdocreport
            fr.opensagres.xdocreport.document
            1.0.5
        
        
            fr.opensagres.xdocreport
            org.apache.poi.xwpf.converter.xhtml
            1.0.5
        
        
            org.apache.poi
            poi-ooxml
            3.9
        
        
            org.apache.poi
            poi-scratchpad
            3.9
        
        
        
            commons-io
            commons-io
            2.4
        

        
        
            com.itextpdf
            itextpdf
            5.4.3
        
        
            org.apache.pdfbox
            pdfbox
            2.0.1
        
    
image.png
image.png

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