java中使用poi實現合併word文檔,兼容圖片的合併並分頁

最近須要作一個java合併wrod的實現方法，網上查了看看發現有的方法word裏的圖片沒辦法正確的合併到目標文件。後來又查了下，綜合了一下本身寫了個測試方法，順手記了一下。

package com.fosung.pb.develop.report.service; import org.apache.poi.openxml4j.opc.OPCPackage; import org.apache.poi.xwpf.usermodel.Document; import org.apache.poi.xwpf.usermodel.XWPFDocument; import org.apache.poi.xwpf.usermodel.XWPFPictureData; import org.apache.xmlbeans.XmlOptions; import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBody; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.OutputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; public class test { public static void main (String[] args) throws Exception { File newFile = new File("f:\\張三_發展黨員紀實材料.docx"); List<File> srcfile = new ArrayList<>(); File file1 = new File("F:\\report\\step3\\substep7.docx"); File file2 = new File("F:\\report\\step3\\substep9.docx"); File file3 = new File("F:\\report\\step3\\substep9-4.docx"); File file4 = new File("F:\\report\\step2\\substep3.docx"); srcfile.add(file2); srcfile.add(file1); srcfile.add(file3); srcfile.add(file4); try { OutputStream dest = new FileOutputStream(newFile); ArrayList<XWPFDocument> documentList = new ArrayList<>(); XWPFDocument doc = null; for (int i = 0; i < srcfile.size(); i++) { FileInputStream in = new FileInputStream(srcfile.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){ 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(); // 記錄圖片合併前及合併後的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("<")); 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); } }

 

剛開始合併後遇到了一個問題，就是合併完word後，全部表格都牢牢挨在了一塊兒，沒有分頁。後來加上了分頁符

documentList.get(i).createParagraph().setPageBreak(true);實現了分頁效果。