poi将word,excel转成html
最近在做的项目中客户有要求,希望能够在线预览自己上传的附件,本想使用第三方插件,但是由于一些不可描述的原因,最后只能选择poi,手工实现用户的需求.本人在查了不少网上资料后,最后将找到的资料整理修改而成本文.不过,由于后面发生了一些事,导致本代码并没有实际应用到项目中.所以,本代码能不能行,咱也不知道.所以本代码只是作为一种参考,提供一种思路使用.
代码jar包
package test04;
import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.*;
import javax.imageio.ImageIO;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerConfigurationException;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.TransformerFactoryConfigurationError;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.apache.commons.io.FileUtils;
import org.apache.poi.hpbf.model.MainContents;
import org.apache.poi.hssf.usermodel.HSSFCellStyle;
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.HSSFWorkbook;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.converter.PicturesManager;
import org.apache.poi.hwpf.converter.WordToHtmlConverter;
import org.apache.poi.hwpf.usermodel.Picture;
import org.apache.poi.hwpf.usermodel.PictureType;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.CellStyle;
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.XSSFColor;
import org.apache.poi.xssf.usermodel.XSSFFont;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.xwpf.converter.core.BasicURIResolver;
import org.apache.poi.xwpf.converter.core.FileImageExtractor;
import org.apache.poi.xwpf.converter.xhtml.XHTMLConverter;
import org.apache.poi.xwpf.converter.xhtml.XHTMLOptions;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.w3c.dom.Document;
public class WjToHtml {
public static void main(String[] args) throws Exception{
String type="文件类型";
String htmlPath="html字符串";
String fullfilepath="需要转换的文档全路径";
String htmlFile="转换后保存的html文件";
String downloadfilename="需要转换的文件名";
if (".doc".equals(type)) {
String parTh="转换后保存html的目录";
//TODO
htmlPath=docToHtml(fullfilepath, htmlFile, parTh);
} else if (".docx".equals(type)) {// 文档
// TODO
htmlPath=docx2Html(fullfilepath,htmlFile);
} else if (".xls".equals(type) || ".xlsx".equals(type)) {// 表格
htmlPath = excelToHtml(fullfilepath, downloadfilename);
} else if (".txt".equals(type)) {// txt
htmlPath = "" + downloadfilename + " "
+ readFileToString(fullfilepath, "txt") + "";
} else if (isImag(new File(fullfilepath))) {// 图片
htmlPath = "" + downloadfilename + " ![]("
+ fullfilepath + ")
";
}
}
/**
* docx格式word转换为html
*
* @param fileName docx文件路径
* @param outPutFile html输出文件路径
* @throws TransformerException
* @throws IOException
* @throws ParserConfigurationException
*/
public static String docx2Html(String docFile, String htmlFIle) throws IOException {
// FontsDocument$Factory;
String fileOutName = htmlFIle;
long startTime = System.currentTimeMillis();
XWPFDocument document = new XWPFDocument(new FileInputStream(docFile));
XHTMLOptions options = XHTMLOptions.create().indent(4);
// 导出图片
File imageFolder = new File("E:/temp/images");
options.setExtractor(new FileImageExtractor(imageFolder));
// URI resolver word的html中图片的目录路径
options.URIResolver(new BasicURIResolver("images"));
File outFile = new File(fileOutName);
outFile.getParentFile().mkdirs();
OutputStream out = new FileOutputStream(outFile);
// org.apache.poi.xwpf.converter.xhtml.XHTMLConverter.convert.XHTMLConverter.java:72
XHTMLConverter.getInstance().convert(document, out, options);
/*FileInputStream fs = new FileInputStream(fileOutName);
byte[] buf = new byte[4096];
int readLength;
String htmls = "";
while (((readLength = fs.read(buf)) != -1)) {
//htmls += (char)readLength;
System.out.write(buf, 0, readLength);
}*/
//fileOutName
String htmls=readFileToString(fileOutName,"html");
// System.out.println("Generate " + htmls + " with " + (System.currentTimeMillis() - startTime) + " ms.");
return htmls;
}
/**
* 将doc转成html
* @param path
* @param file
* @throws FileNotFoundException
* @throws IOException
* @throws ParserConfigurationException
* @throws TransformerFactoryConfigurationError
* @throws TransformerConfigurationException
* @throws TransformerException
*/
private static String docToHtml( String docFile,String htmlFile,String htmlPath)
throws FileNotFoundException, IOException, ParserConfigurationException,
TransformerFactoryConfigurationError, TransformerConfigurationException, TransformerException {
InputStream input = new FileInputStream(docFile);
XWPFDocument xw = new XWPFDocument(input);
HWPFDocument wordDocument = new HWPFDocument(input);
// https://view.officeapps.live.com/op/view.aspx?src=http://10.98.0.38:8080/bpm/r?wf_num=rule?wf_num=R_S004_B004&filenum=9b5564dd07aab045090ac9b03cf0a443fb00
// WordToHtmlConverter
WordToHtmlConverter wordToHtmlConverter = new WordToHtmlConverter(
DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument());
wordToHtmlConverter.setPicturesManager(new PicturesManager() {
public String savePicture(byte[] content, PictureType pictureType, String suggestedName, float widthInches,
float heightInches) {
return suggestedName;
}
});
wordToHtmlConverter.processDocument(wordDocument);
List pics = wordDocument.getPicturesTable().getAllPictures();
if (pics != null) {
for (int i = 0; i < pics.size(); i++) {
Picture pic = (Picture) pics.get(i);
try {
pic.writeImageContent(new FileOutputStream(htmlPath + pic.suggestFullFileName()));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
}
Document htmlDocument = wordToHtmlConverter.getDocument();
ByteArrayOutputStream outStream = new ByteArrayOutputStream();
DOMSource domSource = new DOMSource(htmlDocument);
StreamResult streamResult = new StreamResult(outStream);
TransformerFactory tf = TransformerFactory.newInstance();
Transformer serializer = tf.newTransformer();
serializer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
serializer.setOutputProperty(OutputKeys.INDENT, "yes");
serializer.setOutputProperty(OutputKeys.METHOD, "html");
serializer.transform(domSource, streamResult);
outStream.close();
String content = new String(outStream.toByteArray());
FileUtils.writeStringToFile(new File(htmlFile), content, "utf-8");
String htmls=readFileToString(htmlFile,"html");
// System.out.println("Generate " + htmls + " with " + (System.currentTimeMillis() - startTime) + " ms.");
return htmls;
}
/**
* 判断是否是图片文件
*
* @param file
* @return
*/
public static boolean isImag(File file) {
BufferedImage image = null;
Boolean fg = true;
try {
image = ImageIO.read(file);
if (image == null) {
fg = false;
}
} catch (IOException ex) {
fg = false;
}
return fg;
}
/**
* 读取文件为字符串
*
* @param path
* @param type
* @return
*/
public static String readFileToString(String path, String type) {
// 定义返回结果
String jsonString = "";
StringBuffer sb = new StringBuffer();
BufferedReader in = null;
try {
in = new BufferedReader(new InputStreamReader(new FileInputStream(new File(path)), "UTF-8"));// 读取文件
String thisLine = null;
while ((thisLine = in.readLine()) != null) {
sb.append(thisLine);
if ("txt".equals(type))
sb.append("
");
}
in.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException el) {
}
}
}
jsonString = sb.toString();
// 返回拼接好的JSON String
return jsonString;
}
/**
* excelTohtml方法
*
* @param fileName
* @param path
*/
private static String excelToHtml(String fileName, String path) {
InputStream is = null;
String htmlExcel = null;
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 = getExcelInfo(xWb, true);
} else if (wb instanceof HSSFWorkbook) {
HSSFWorkbook hWb = (HSSFWorkbook) wb;
htmlExcel = getExcelInfo(hWb, true);
}
htmlExcel = "" + fileName + " " + htmlExcel
+ "";
return htmlExcel;
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
try {
is.close();
} 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 = getExcelInfo(xWb, isWithStyle);
} else if (wb instanceof HSSFWorkbook) {
HSSFWorkbook hWb = (HSSFWorkbook) wb;
htmlExcel = getExcelInfo(hWb, isWithStyle);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return htmlExcel;
}
/**
* 将excel内容转成html
*
* @param wb
* @param isWithStyle
* @return
*/
public static String getExcelInfo(Workbook wb, boolean isWithStyle) {
StringBuffer sb = new StringBuffer();
Sheet sheet = wb.getSheetAt(0);// 获取第一个Sheet的内容
int lastRowNum = sheet.getLastRowNum();
Map map[] = getRowSpanColSpanMap(sheet);
sb.append("");
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(" ");
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 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("");
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(" ");
}
sb.append(" ");
}
sb.append("
");
return sb.toString();
}
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);
}
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)) {
sb.append("color:#" + xc.getARGBHex().substring(2) + ";"); // 字体颜色
}
XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor();
// System.out.println("************************************");
// System.out.println("BackgroundColorColor:
// "+cellStyle.getFillBackgroundColorColor());
// System.out.println("ForegroundColor:
// "+cellStyle.getFillForegroundColor());//0
// System.out.println("BackgroundColorColor:
// "+cellStyle.getFillBackgroundColorColor());
// System.out.println("ForegroundColorColor:
// "+cellStyle.getFillForegroundColorColor());
// String bgColorStr = bgColor.getARGBHex();
// System.out.println("bgColorStr: "+bgColorStr);
if (bgColor != null && !"".equals(bgColor)) {
sb.append("background-color:#" + bgColor.getARGBHex().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 "";
}
}