package com.product.file.service;
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import org.apache.poi.openxml4j.opc.OPCPackage;
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import org.apache.poi.xwpf.usermodel.XWPFDocument;
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import org.apache.tomcat.util.http.fileupload.IOUtils;
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import org.apache.xmlbeans.XmlOptions;
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import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBody;
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import java.io.*;
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import java.util.ArrayList;
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import java.util.List;
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/**
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* 合并word
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*/
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public class MergeDoc {
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/**
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* 合并docx文件
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*
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* @param srcDocxs 需要合并的目标docx文件
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* @param response 合并后的docx输出文件
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*/
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public static File mergeDoc(List<File> srcDocxs, String tempFilePath) {
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OutputStream dest = null;
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List<OPCPackage> opcpList = new ArrayList<>();
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int length = null == srcDocxs ? 0 : srcDocxs.size();
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/**
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* 循环获取每个docx文件的OPCPackage对象
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*/
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for (int i = 0; i < length; i++) {
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File doc = srcDocxs.get(i);
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OPCPackage srcPackage = null;
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try {
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srcPackage = OPCPackage.open(doc);
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} catch (Exception e) {
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e.printStackTrace();
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}
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if (null != srcPackage) {
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opcpList.add(srcPackage);
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}
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}
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int opcpSize = opcpList.size();
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//获取的OPCPackage对象大于0时，执行合并操作
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if (opcpSize > 0) {
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try {
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dest = new FileOutputStream(tempFilePath);
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XWPFDocument src1Document = new XWPFDocument(opcpList.get(0));
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CTBody src1Body = src1Document.getDocument().getBody();
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//OPCPackage大于1的部分执行合并操作
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if (opcpSize > 1) {
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for (int i = 1; i < opcpSize; i++) {
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OPCPackage src2Package = opcpList.get(i);
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XWPFDocument src2Document = new XWPFDocument(src2Package);
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CTBody src2Body = src2Document.getDocument().getBody();
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appendBody(src1Body, src2Body);
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}
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}
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//将合并的文档写入目标文件中
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src1Document.write(dest);
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return new File(tempFilePath);
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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//关闭流
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IOUtils.closeQuietly(dest);
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}
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}
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return null;
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}
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/**
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* 合并文档内容
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*
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* @param src 目标文档
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* @param append 要合并的文档
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* @throws Exception
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*/
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private static void appendBody(CTBody src, CTBody append) throws Exception {
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XmlOptions optionsOuter = new XmlOptions();
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optionsOuter.setSaveOuter();
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String appendString = append.xmlText(optionsOuter);
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//替换word中得空行、根据自己需求来选择需不需要
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//word文档其实是由xml文件合成得，一下替换得是作者对应得xml文件中得空行标签
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// appendString = appendString.replaceAll("<w:p><w:pPr><w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"24\\\"/></w:rPr></w:pPr></w:p>","");
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// appendString = appendString.replaceAll("<w:p><w:pPr xsi:nil=\\\"true\\\" xmlns:xsi=\\\"xsi\\\"/></w:p>","");
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// appendString = appendString.replaceAll("<w:p><w:pPr><w:ind w:firstLineChars=\\\"200\\\" w:firstLine=\\\"600\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"30\\\"/><w:szCs w:val=\\\"30\\\"/></w:rPr></w:pPr></w:p>","");
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// appendString = appendString.replaceAll("<w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/>","");;
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String srcString = src.xmlText();
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// srcString = srcString.replaceAll("<w:p><w:pPr><w:ind w:firstLineChars=\\\"200\\\" w:firstLine=\\\"600\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"30\\\"/><w:szCs w:val=\\\"30\\\"/></w:rPr></w:pPr></w:p>","");
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// srcString = srcString.replaceAll("<w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/>","");
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// srcString = srcString.replaceAll("<w:p><w:pPr><w:spacing w:line=\\\"360\\\" w:lineRule=\\\"auto\\\"/><w:jc w:val=\\\"right\\\"/><w:rPr><w:rFonts w:ascii=\\\"仿宋\\\" w:eastAsia=\\\"仿宋\\\" w:hAnsi=\\\"仿宋\\\"/><w:sz w:val=\\\"24\\\"/></w:rPr></w:pPr></w:p>","");
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// srcString = srcString.replaceAll("<w:p><w:pPr xsi:nil=\\\"true\\\" xmlns:xsi=\\\"xsi\\\"/></w:p>","");
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String prefix = srcString.substring(0, srcString.indexOf(">") + 1);
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String mainPart = srcString.substring(srcString.indexOf(">") + 1,
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srcString.lastIndexOf("<"));
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String sufix = srcString.substring(srcString.lastIndexOf("<"));
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String addPart = appendString.substring(appendString.indexOf(">") + 1,
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appendString.lastIndexOf("<"));
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CTBody makeBody = CTBody.Factory.parse(prefix + mainPart + addPart
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+ sufix);
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src.set(makeBody);
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}
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}
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