合并DOCX文档

向右看齐 2022-07-12 22:40 155阅读 0赞

找了好久好久的方法，结果无意间发现了，感激上苍啊

只能合并DOCX噢，不能合并DOC，强制修改文件名后缀也是不可以的哟，所以又花了好久找上一篇文章的方法。

废话不多说，上代码，很简洁，用DOC4J。

用到的jar包有docx4j-3.3.1.jar和commons-io-2.2.jar

public static void main(String[] args) {
    		try {
    			List<InputStream> streams = new ArrayList<InputStream>();
    			streams.add(new FileInputStream("D://4.docx"));
    			streams.add(new FileInputStream("D://5.docx"));
    			InputStream stream = mergeDocx(streams);
    			saveFile(IOUtils.toByteArray(stream), "D://6.docx");
    		} catch (Exception e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    		}
    	}
    
    	public static void saveFile(byte[] bfile, String filePath) {
    		BufferedOutputStream bos = null;
    		FileOutputStream fos = null;
    		File file = null;
    		try {
    			file = new File(filePath);
    			fos = new FileOutputStream(file);
    			bos = new BufferedOutputStream(fos);
    			bos.write(bfile);
    		} catch (Exception e) {
    			e.printStackTrace();
    		} finally {
    			if (bos != null) {
    				try {
    					bos.close();
    				} catch (IOException e1) {
    					e1.printStackTrace();
    				}
    			}
    			if (fos != null) {
    				try {
    					fos.close();
    				} catch (IOException e1) {
    					e1.printStackTrace();
    				}
    			}
    		}
    	}
    
    	public static InputStream mergeDocx(final List<InputStream> streams)
    			throws Docx4JException, IOException {
    
    		WordprocessingMLPackage target = null;
    		final File generated = File.createTempFile("generated", ".docx");
    
    		int chunkId = 0;
    		Iterator<InputStream> it = streams.iterator();
    		while (it.hasNext()) {
    			InputStream is = it.next();
    			if (is != null) {
    				if (target == null) {
    					// Copy first (master) document
    					OutputStream os = new FileOutputStream(generated);
    					os.write(IOUtils.toByteArray(is));
    					os.close();
    
    					target = WordprocessingMLPackage.load(generated);
    				} else {
    					// Attach the others (Alternative input parts)
    					insertDocx(target.getMainDocumentPart(),
    							IOUtils.toByteArray(is), chunkId++);
    				}
    			}
    		}
    
    		if (target != null) {
    			target.save(generated);
    			return new FileInputStream(generated);
    		} else {
    			return null;
    		}
    	}