使用java将word文档docx，doc（包含图形，文本框，图片等）完美转换成所有格式图片（pdf，png，gif，jpeg等等）下文中附带代码，效果图等
思路
使用jacob将docx转换成doc，用openoffice将doc转成pdf，最后是用pdfbox将pdf转成任意格式图片
使用到的包
https://download.csdn.net/download/weixin_44396516/11393966
实现代码
把上面的包下载并导入，代码中有些内容自行修改，有问题请留言，看到会回复。
import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.ConnectException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Properties;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.OutputKeys;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.encryption.InvalidPasswordException;
import org.apache.pdfbox.rendering.ImageType;
import org.apache.pdfbox.rendering.PDFRenderer;
import org.apache.pdfbox.tools.imageio.ImageIOUtil;
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.model.PAPX;
import org.apache.poi.hwpf.usermodel.PictureType;
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.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.w3c.dom.Document;
import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.OpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.connection.SocketOpenOfficeConnection;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;
import com.artofsolving.jodconverter.openoffice.converter.StreamOpenOfficeDocumentConverter;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
public class POIWordToPng {
/**
* 使用jacob进行Word文档格式互转(例:doc2docx、docx2doc)
*
* @author Harley Hong
* @created 2017 /08/09 16:09:32
*/
/**
* doc格式
*/
private static final int DOC_FMT = 0;
/**
* docx格式
*/
private static final int DOCX_FMT = 12;
static String picp=null;
static String docn="/"+new Date().getTime()+".doc";
public static String getSystemFileCharset(){
Properties pro = System.getProperties();
return pro.getProperty("file.encoding");
}
public static void main(String[] args) throws IOException {
String sourcePath="D:\\软件\\Tomcat\\Tomcat7.075\\webapps\\jhwx\\file\\2019-07-22\\8_20190722111135.docx";
String picturesPath="D:\\软件\\Tomcat\\Tomcat7.075\\webapps\\jhwx\\file\\2019-07-22\\image";
try {
convertDocFmt(sourcePath, picturesPath+docn, DOC_FMT);
} catch (Exception e) {
e.printStackTrace();
}
convert(new File(picturesPath+docn), picturesPath);
String str=picturesPath+"\\"+picp.substring(6);
pdf2Gif(str);
}
/**
* 将doc文档转换成pdf文档
*
* @param docFile
* 需要转换的word文档
* @param filepath
* 转换之后html的存放路径
* @return 转换之后的html文件
*/
public static File convert(File docFile, String filepath) throws IOException {
// 创建保存html的文件
String allpath=filepath + "/" + new Date().getTime() + ".pdf";
File htmlFile = new File(allpath);
picp=allpath.substring(54);
// 启动Openoffice
String OpenOffice_HOME = "C:\\Program Files (x86)\\OpenOffice 4";
if (OpenOffice_HOME.charAt(OpenOffice_HOME.length() - 1) != '\\') {
OpenOffice_HOME += "\\";
}
String command = OpenOffice_HOME
+ "program\\soffice -headless -accept=\"socket,host=127.0.0.1,port=8100;urp;\" -nofirststartwizard";
Process pro = Runtime.getRuntime().exec(command);
// 创建Openoffice连接
OpenOfficeConnection connection = new SocketOpenOfficeConnection("127.0.0.1", 8100);
connection.connect();
// 创建转换器
// DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
DocumentConverter converter = new StreamOpenOfficeDocumentConverter(connection);
// 转换文档
converter.convert(docFile, htmlFile);
// 关闭openoffice连接
connection.disconnect();
// 关闭OpenOffice服务的进程
pro.destroy();
return htmlFile;
}
/**
* 根据docx类型转换doc文件
*
* @param srcPaththe doc path 源文件
* @param descPath the docx path 目标文件
* @param fmtthe fmt 所转格式
* @return the file
* @throws Exception the exception
*/
public static File convertDocFmt(String srcPath, String descPath, int fmt) throws Exception {
// 实例化ComThread线程与ActiveXComponent
ComThread.InitSTA();
ActiveXComponent app = new ActiveXComponent("Word.Application");
try {
// 文档隐藏时进行应用操作
app.setProperty("Visible", new Variant(false));
// 实例化模板Document对象
Dispatch document = app.getProperty("Documents").toDispatch();
// 打开Document进行另存为操作
Dispatch doc = Dispatch.invoke(document, "Open", Dispatch.Method,
new Object[] { srcPath, new Variant(true), new Variant(true) }, new int[1]).toDispatch();
Dispatch.invoke(doc, "SaveAs", Dispatch.Method, new Object[] { descPath, new Variant(fmt) }, new int[1]);
Dispatch.call(doc, "Close", new Variant(false));
return new File(descPath);
} catch (Exception e) {
throw e;
} finally {
// 释放线程与ActiveXComponent
app.invoke("Quit", new Variant[] {});
ComThread.Release();
}
}
/**
* pdf转png
* @param pdfFilename
* @throws InvalidPasswordException
* @throws IOException
*/
public static void pdf2Gif(String pdfFilename ) throws InvalidPasswordException, IOException {
//合成一张图片
PDDocument document = PDDocument.load(new File(pdfFilename));
PDFRenderer pdfRenderer = new PDFRenderer(document);
List<BufferedImage> images = new ArrayList();
int pageCounter = 0;
for (PDPage page : document.getPages()) {
// note that the page number parameter is zero based
BufferedImage bim = pdfRenderer.renderImageWithDPI(pageCounter++, 100, ImageType.RGB);
images.add(bim);
}
BufferedImage result = mergeImage(false,images.toArray(new BufferedImage[0]));
ImageIOUtil.writeImage(result, pdfFilename + "-" + (pageCounter++) + ".gif", 100);
document.close();
//不合成一张
// PDDocument document = PDDocument.load(new File(pdfFilename));
// PDFRenderer pdfRenderer = new PDFRenderer(document);
// int pageCounter = 0;
// int pages = document.getNumberOfPages();
// pngp=new String[pages];
// for (PDPage page : document.getPages()) {
// // note that the page number parameter is zero based
// BufferedImage bim = pdfRenderer.renderImageWithDPI(pageCounter++, 200, ImageType.RGB);
// ImageIOUtil.writeImage(bim, pdfFilename + "-" + pageCounter + ".gif", 72);
// pngp[pageCounter-1]=pdfFilename.substring(54)+ "-" + pageCounter + ".gif";
//
// }
// document.close();
}
/**
* 合并任数量的图片成一张图片
*
* @param isHorizontal
* true代表水平合并，fasle代表垂直合并
* @param imgs
* 欲合并的图片数组
* @return
* @throws IOException
*/
public static BufferedImage mergeImage(boolean isHorizontal, BufferedImage... imgs) throws IOException {
// 生成新图片
BufferedImage destImage = null;
// 计算新图片的长和高
int allw = 0, allh = 0, allwMax = 0, allhMax = 0;
for (BufferedImage img : imgs) {
allw += img.getWidth();
allh += img.getHeight();
if (img.getWidth() > allwMax) {
allwMax = img.getWidth();
}
if (img.getHeight() > allhMax) {
allhMax = img.getHeight();
}
}
// 创建新图片
if (isHorizontal) {
destImage = new BufferedImage(allw, allhMax, BufferedImage.TYPE_INT_RGB);
} else {
destImage = new BufferedImage(allwMax, allh, BufferedImage.TYPE_INT_RGB);
}
// 合并所有子图片到新图片
int wx = 0, wy = 0;
for (int i = 0; i < imgs.length; i++) {
BufferedImage img = imgs[i];
int w1 = img.getWidth();
int h1 = img.getHeight();
// 从图片中读取RGB
int[] ImageArrayOne = new int[w1 * h1];
ImageArrayOne = img.getRGB(0, 0, w1, h1, ImageArrayOne, 0, w1); // 逐行扫描图像中各个像素的RGB到数组中
if (isHorizontal) { // 水平方向合并
destImage.setRGB(wx, 0, w1, h1, ImageArrayOne, 0, w1); // 设置上半部分或左半部分的RGB
} else { // 垂直方向合并
destImage.setRGB(0, wy, w1, h1, ImageArrayOne, 0, w1); // 设置上半部分或左半部分的RGB
}
wx += w1;
wy += h1;
}
return destImage;
}
}
效果图：
转换前的docx文档（包含图形，文本框）
效果图：转换后的png文件
