基于doc4j文档合并

最新推荐文章于 2025-05-13 15:38:51 发布

ijsonzhang

最新推荐文章于 2025-05-13 15:38:51 发布

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本文介绍了一种使用Java实现的批量合并多个DOCX文档的方法，通过创建临时文件和利用docx4j库，将多个输入流合并成一个输出流，并保存为新的DOCX文档。

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package com.kk.test;

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.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.io.IOUtils;
import org.docx4j.jaxb.Context;
import org.docx4j.openpackaging.exceptions.Docx4JException;
import org.docx4j.openpackaging.packages.WordprocessingMLPackage;
import org.docx4j.openpackaging.parts.PartName;
import org.docx4j.openpackaging.parts.WordprocessingML.AlternativeFormatInputPart;
import org.docx4j.openpackaging.parts.WordprocessingML.MainDocumentPart;
import org.docx4j.relationships.Relationship;
import org.docx4j.wml.CTAltChunk;

public class MargeDoc {

   public void mergeDocx(List<String> list, String path) {
       List<InputStream> inList = new ArrayList<InputStream>();
       for (int i = 0; i < list.size(); i++)
           try {
               inList.add(new FileInputStream(list.get(i)));
           } catch (FileNotFoundException e) {
               e.printStackTrace();
           }
       try {
           InputStream inputStream = mergeDocx(inList);
           saveTemplate(inputStream, path);
       } catch (Docx4JException | IOException e) {
           // TODO Auto-generated catch block
           e.printStackTrace();
       }
   }

public 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;
       }
   }

   // 插入文档
   private void insertDocx(MainDocumentPart main, byte[] bytes, int chunkId) {
       try {
           AlternativeFormatInputPart afiPart = new AlternativeFormatInputPart(
                   new PartName("/part" + chunkId + ".docx"));
           // afiPart.setContentType(new ContentType(CONTENT_TYPE));
           afiPart.setBinaryData(bytes);
           Relationship altChunkRel = main.addTargetPart(afiPart);

CTAltChunk chunk = Context.getWmlObjectFactory().createCTAltChunk();
chunk.setId(altChunkRel.getId());

           main.addObject(chunk);
       } catch (Exception e) {
           e.printStackTrace();
       }
   }

   public void saveTemplate(InputStream fis, String toDocPath) {
       FileOutputStream fos;
       int bytesum = 0;
       int byteread = 0;
       try {
           fos = new FileOutputStream(toDocPath);
           byte[] buffer = new byte[1444];
           while ((byteread = fis.read(buffer)) != -1) {
               bytesum += byteread; // 字节数文件大小
               fos.write(buffer, 0, byteread);
           }
           fis.close();
           fos.close();
       } catch (FileNotFoundException e1) {
           e1.printStackTrace();
       } catch (IOException e) {
           e.printStackTrace();
       }
   }
   public static void main(String[] args) throws Docx4JException, IOException{
       MargeDoc wordUtil=new MargeDoc();
   String template="C:\\Users\\Administrator\\Desktop\\doc";
   List<String> list=new ArrayList<String>();
   list.add(template+"/1.docx");
   list.add(template+"/2.docx");
   list.add(template+"/11.docx");

   wordUtil.mergeDocx(list, template+"/out.docx");
   }
}