java 实现 word 文档的在线预览

package com.dz.netVerify.wordToHtml; 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.OutputStream; import java.util.List; 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.commons.io.FileUtils; 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.xwpf.converter.core.FileImageExtractor; import org.apache.poi.xwpf.converter.core.FileURIResolver; 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 WordToHtmlController { /** * word2003版转换 * * @throws IOException */ public void parseDocx2Html() throws Throwable { final String path = "F:\\"; final String file = "测试文旦编辑.doc"; InputStream input = new FileInputStream(path + file); String suffix = file.substring(file.indexOf(".") + 1);// //截取文件格式名 // 实例化WordToHtmlConverter，为图片等资源文件做准备 WordToHtmlConverter wordToHtmlConverter = new WordToHtmlConverter( DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument()); wordToHtmlConverter.setPicturesManager(new PicturesManager() { @Override public String savePicture(byte[] content, PictureType pictureType, String suggestedName, float widthInches, float heightInches) { return suggestedName; } }); if ("doc".equals(suffix.toLowerCase())) { // docx HWPFDocument wordDocument = new HWPFDocument(input); wordToHtmlConverter.processDocument(wordDocument); // 处理图片，会在同目录下生成 image/media/ 路径并保存图片 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(path + pic.suggestFullFileName())); } catch (FileNotFoundException e) { e.printStackTrace(); } } } } // 转换 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");// 编码格式 serializer.setOutputProperty(OutputKeys.INDENT, "yes");// 是否用空白分割 serializer.setOutputProperty(OutputKeys.METHOD, "html");// 输出类型 serializer.transform(domSource, streamResult); outStream.close(); String content = new String(outStream.toByteArray()); FileUtils.writeStringToFile(new File(path, "interface.html"), content, "utf-8"); } /** * word2007版转换 * * @throws IOException */ public static void parseToHtml() throws IOException { File f = new File("F:/test.docx"); if (!f.exists()) { System.out.println("Sorry File does not Exists!"); } else { if (f.getName().endsWith(".docx") || f.getName().endsWith(".DOCX")) { // 1) 加载XWPFDocument及文件 InputStream in = new FileInputStream(f); XWPFDocument document = new XWPFDocument(in); // 2) 实例化XHTML内容(这里将会把图片等文件放到生成的"word/media"目录) File imageFolderFile = new File("f:/test"); XHTMLOptions options = XHTMLOptions.create().URIResolver(new FileURIResolver(imageFolderFile)); options.setExtractor(new FileImageExtractor(imageFolderFile)); // options.setIgnoreStylesIfUnused(false); // options.setFragment(true); // 3) 将XWPFDocument转成XHTML并生成文件 OutputStream out = new FileOutputStream(new File("F:/result.html")); XHTMLConverter.getInstance().convert(document, out, options); } else { System.out.println("Enter only MS Office 2007+ files"); } } } public static void main(String[] args) throws Throwable { new WordToHtmlController().parseDocx2Html(); } }