poi合并多个word文档并设置页码

package combineDoc; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import org.apache.poi.openxml4j.opc.OPCPackage; import org.apache.poi.util.IOUtils; import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy; import org.apache.poi.xwpf.usermodel.*; import org.apache.xmlbeans.XmlOptions; import org.apache.xmlbeans.impl.xb.xmlschema.SpaceAttribute; import org.openxmlformats.schemas.wordprocessingml.x2006.main.*; public class MergeDocPoi { /** * 合并两个docx文档方法，对文档包含的图片无效 * @author boxinliuyue * @date 2018年11月9日 */ public static void main(String[] args) throws Exception { String file1="D:\\data\\WordTest\\Combine\\1.docx"; String file2="D:\\data\\WordTest\\Combine\\2.docx"; String file3="D:\\data\\WordTest\\Combine\\3.docx"; List<String> fileList=new ArrayList(); fileList.add(file1); fileList.add(file2); fileList.add(file3); String destDocx = "D:\\data\\WordTest\\Combine\\合成文件.docx"; mergeDoc(fileList, destDocx); } /** * 合并docx文件 * @param srcDocxs 需要合并的目标docx文件 * @param destDocx 合并后的docx输出文件 */ public static void mergeDoc(List<String> srcDocxs,String destDocx){ OutputStream dest = null; List<OPCPackage> opcpList = new ArrayList(); int length = null == srcDocxs ? 0 : srcDocxs.size(); /** * 循环获取每个docx文件的OPCPackage对象 */ for (int i = 0; i < length; i++) { String doc = srcDocxs.get(i); OPCPackage srcPackage = null; try { srcPackage = OPCPackage.open(doc); } catch (Exception e) { e.printStackTrace(); } if(null != srcPackage){ opcpList.add(srcPackage); } } int opcpSize = opcpList.size(); //获取的OPCPackage对象大于0时，执行合并操作 if(opcpSize > 0){ try { dest = new FileOutputStream(destDocx); XWPFDocument src1Document = new XWPFDocument(opcpList.get(0)); //XWPFParagraph p=src1Document.createParagraph(); //p.setFirstLineIndent(0); //p.setPageBreak(false); XWPFRun run1=src1Document.getLastParagraph().createRun(); run1.addBreak(BreakType.PAGE); //CTBody src1Body = src1Document.getDocument().getBody(); //OPCPackage大于1的部分执行合并操作 if(opcpSize > 1){ for (int i = 1; i < opcpSize; i++) { OPCPackage src2Package = opcpList.get(i); XWPFDocument src2Document = new XWPFDocument(src2Package); if(i!=opcpSize-1){//加上这一句，否则最后一页将多加一页空白页 //每部分换页 XWPFRun run2=src2Document.getLastParagraph().createRun(); run2.addBreak(BreakType.PAGE); } //CTBody src2Body = src2Document.getDocument().getBody(); appendBody(src1Document, src2Document); } } //将合并的文档写入目标文件中 simpleNumberFooter(src1Document); src1Document.write(dest); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); }finally{ IOUtils.closeQuietly(dest); } } } /** * 合并文档内容 * @param src 目标文档 * @param append 要合并的文档 * @throws Exception */ // private static void appendBody(CTBody src, CTBody append) 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("<")); // CTBody makeBody = CTBody.Factory.parse(prefix + mainPart + addPart // + sufix); // src.set(makeBody); // } 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(); // 记录图片合并前及合并后的ID Map<String, String> map = new HashMap(); for (XWPFPictureData picture : allPictures) { String before = append.getRelationId(picture); //将原文档中的图片加入到目标文档中 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()) { //对xml字符串中图片ID进行替换 for (Map.Entry<String, String> set : map.entrySet()) { addPart = addPart.replace(set.getKey(), set.getValue()); } } //将两个文档的xml内容进行拼接 CTBody makeBody = CTBody.Factory.parse(prefix + mainPart + addPart + sufix); src.set(makeBody); } //页脚:显示页码信息 public static void simpleNumberFooter(XWPFDocument document) throws Exception { CTP ctp = CTP.Factory.newInstance(); XWPFParagraph codePara = new XWPFParagraph(ctp, document); XWPFRun r1 = codePara.createRun(); r1.setText("第"); r1.setFontSize(11); CTRPr rpr = r1.getCTR().isSetRPr() ? r1.getCTR().getRPr() : r1.getCTR().addNewRPr(); CTFonts fonts = rpr.isSetRFonts() ? rpr.getRFonts() : rpr.addNewRFonts(); fonts.setAscii("宋体"); fonts.setEastAsia("宋体"); fonts.setHAnsi("宋体"); r1 = codePara.createRun(); CTFldChar fldChar = r1.getCTR().addNewFldChar(); fldChar.setFldCharType(STFldCharType.Enum.forString("begin")); r1 = codePara.createRun(); CTText ctText = r1.getCTR().addNewInstrText(); ctText.setStringValue("PAGE \\* MERGEFORMAT"); ctText.setSpace(SpaceAttribute.Space.Enum.forString("preser