基於java處理.docx格式的word合並

如下實例是將 2.docx和3.docx合並，寫到empty.docx中，不適用於.doc格式，

public static void main(String[] args) {
    File file1 = new File("D:\\empty.docx");
    List<File> targetFile1 = new ArrayList<>();
    targetFile1.add(new File("D:\\2.docx"));
    targetFile1.add(new File("D:\\3.docx"));
    appendDocx(file1, targetFile1);
}

/**
 * 把多個docx文件合並成一個
 *
 * @param outfile 輸出文件
 * @param targetFile 目標文件
 */
public static void appendDocx(File outfile, List<File> targetFile) {
 try {
 OutputStream dest = new FileOutputStream(outfile);
 ArrayList<XWPFDocument> documentList = new ArrayList<>();
 XWPFDocument doc = null;
 for (int i = 0; i < targetFile.size(); i++) {
 FileInputStream in = new FileInputStream(targetFile.get(i).getPath());
 OPCPackage open = OPCPackage.open(in);
 XWPFDocument document = new XWPFDocument(open);
 documentList.add(document);
 }
 for (int i = 0; i < documentList.size(); i++) {
 doc = documentList.get(0);
 if (i != 0) {
 /* if (i != documentList.size() - 1) {
 documentList.get(i).createParagraph().setPageBreak(true);
 }*/

 appendBody(doc, documentList.get(i));
 }
 }
 //doc.createParagraph().setPageBreak(true);
 doc.write(dest);
 } catch (Exception e) {
 e.printStackTrace();
 }
}

public static void appendBody(XWPFDocument src, XWPFDocument append) throws Exception {
 CTBody src1Body = src.getDocument().getBody();
 CTBody src2Body = append.getDocument().getBody();

 List<XWPFPictureData> allPictures = append.getAllPictures();
 // 記錄圖片合並前及合並后的ID
 Map<String, String> map = new HashMap<>();
 for (XWPFPictureData picture : allPictures) {
 String before = append.getRelationId(picture);
 //將原文檔中的圖片加入到目標文檔中
 String after = src.addPictureData(picture.getData(), Document.PICTURE_TYPE_PNG);
 map.put(before, after);
 }

 appendBody(src1Body, src2Body, map);

}

private static void appendBody(CTBody src, CTBody append, Map<String, String> map) throws Exception {
 XmlOptions optionsOuter = new XmlOptions();
 optionsOuter.setSaveOuter();
 String appendString = append.xmlText(optionsOuter);

 String srcString = src.xmlText();
 String prefix = srcString.substring(0, srcString.indexOf(">") + 1);
 String mainPart = srcString.substring(srcString.indexOf(">") + 1, srcString.lastIndexOf("<"));
 String sufix = srcString.substring(srcString.lastIndexOf("<"));
 String addPart = appendString.substring(appendString.indexOf(">") + 1, appendString.lastIndexOf("<"));
//下面這部分可以去掉，我加上的原因是合並的時候，有時候出現打不開的情況，對照document.xml將某些標簽去掉就可以正常打開了
 addPart = addPart.replaceAll("w14:paraId=\"[A-Za-z0-9]{1,10}\"", "");
 addPart = addPart.replaceAll("w14:textId=\"[A-Za-z0-9]{1,10}\"", "");
 addPart = addPart.replaceAll("w:rsidP=\"[A-Za-z0-9]{1,10}\"", "");
 addPart = addPart.replaceAll("w:rsidRPr=\"[A-Za-z0-9]{1,10}\"", "");
 addPart = addPart.replace("<w:headerReference r:id=\"rId8\" w:type=\"default\"/>","");
 addPart = addPart.replace("<w:footerReference r:id=\"rId9\" w:type=\"default\"/>","");
 addPart = addPart.replace("xsi:nil=\"true\"","");

 if (map != null && !map.isEmpty()) {
 //對xml字符串中圖片ID進行替換
 for (Map.Entry<String, String> set : map.entrySet()) {
 addPart = addPart.replace(set.getKey(), set.getValue());
 }
 }
 //將兩個文檔的xml內容進行拼接
 CTBody makeBody = CTBody.Factory.parse(prefix + mainPart + addPart + sufix);

 src.set(makeBody);
}