java使用poi对多个word文档进行合成

Posted 2020-12-14 奋进的小土豆

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 1 package com.kwm.referencemark.test;
 2 
 3 import java.io.File;
 4 import java.io.FileInputStream;
 5 import java.io.FileOutputStream;
 6 import java.io.OutputStream;
 7 import java.util.ArrayList;
 8 import java.util.HashMap;
 9 import java.util.List;
10 import java.util.Map;
11 
12 import org.apache.poi.openxml4j.opc.OPCPackage;
13 import org.apache.poi.xwpf.usermodel.BreakType;
14 import org.apache.poi.xwpf.usermodel.Document;
15 import org.apache.poi.xwpf.usermodel.XWPFDocument;
16 import org.apache.poi.xwpf.usermodel.XWPFPictureData;
17 import org.apache.xmlbeans.XmlOptions;
18 import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTBody;
19 /**
20  * 合成word文档工具类
21  * @ClassName: CompoundWordUtil
22  */
23 public class CompoundWordUtil {
24     public static void main (String[] args) throws Exception {
25         File newFile = new File("C:/Users/v-guoxiao/Documents/trademark/TMReferencemark/testfile/Paticulars.docx");
26         List<File> srcfile = new ArrayList<>();
27         
28         File file1 = new File("C:/Users/v-guoxiao/Documents/trademark/TMReferencemark/testfile/test1.docx");
29         File file2 = new File("C:/Users/v-guoxiao/Documents/trademark/TMReferencemark/testfile/test2.docx");
30         srcfile.add(file1);
31         srcfile.add(file2);
32         
33         try {
34             OutputStream dest = new FileOutputStream(newFile);
35             ArrayList<XWPFDocument> documentList = new ArrayList<>();
36             XWPFDocument doc = null;
37             for (int i = 0; i < srcfile.size(); i++) {
38                 FileInputStream in = new FileInputStream(srcfile.get(i).getPath());
39                 OPCPackage open = OPCPackage.open(in);
40                 XWPFDocument document = new XWPFDocument(open);
41                 documentList.add(document);
42             }
43             for (int i = 0; i < documentList.size(); i++) {
44                 doc = documentList.get(0);
45                 if(i == 0){//首页直接分页，不再插入首页文档内容
46                     documentList.get(i).createParagraph().createRun().addBreak(BreakType.PAGE);
47 //                    appendBody(doc,documentList.get(i));
48                 }else if(i == documentList.size()-1){//尾页不再分页，直接插入最后文档内容
49                     appendBody(doc,documentList.get(i));
50                 }else{
51                     documentList.get(i).createParagraph().createRun().addBreak(BreakType.PAGE);
52                     appendBody(doc,documentList.get(i));
53                 }
54             }
55             doc.write(dest);
56             System.out.println("*****合成成功********");
57             Runtime.getRuntime().exec("cmd /c start winword C:/Users/v-guoxiao/Documents/trademark/TMReferencemark/testfile/Paticulars.docx");//直接调用cmd打开合成文档
58         } catch (Exception e) {
59             e.printStackTrace();
60         }
61     }
62 
63     public static void appendBody(XWPFDocument src, XWPFDocument append) throws Exception {
64         CTBody src1Body = src.getDocument().getBody();
65         CTBody src2Body = append.getDocument().getBody();
66 
67         List<XWPFPictureData> allPictures = append.getAllPictures();
68         // 记录图片合并前及合并后的ID
69         Map<String,String> map = new HashMap<String,String>();
70         for (XWPFPictureData picture : allPictures) {
71             String before = append.getRelationId(picture);
72             //将原文档中的图片加入到目标文档中
73             String after = src.addPictureData(picture.getData(), Document.PICTURE_TYPE_PNG);
74             map.put(before, after);
75         }
76         appendBody(src1Body, src2Body,map);
77     }
78 
79     private static void appendBody(CTBody src, CTBody append,Map<String,String> map) throws Exception {
80         XmlOptions optionsOuter = new XmlOptions();
81         optionsOuter.setSaveOuter();
82         String appendString = append.xmlText(optionsOuter);
83 
84         String srcString = src.xmlText();
85         String prefix = srcString.substring(0,srcString.indexOf(">")+1);
86         String mainPart = srcString.substring(srcString.indexOf(">")+1,srcString.lastIndexOf("<"));
87         String sufix = srcString.substring( srcString.lastIndexOf("<") );
88         String addPart = appendString.substring(appendString.indexOf(">") + 1, appendString.lastIndexOf("<"));
89         if (map != null && !map.isEmpty()) {
90             //对xml字符串中图片ID进行替换
91             for (Map.Entry<String, String> set : map.entrySet()) {
92                 addPart = addPart.replace(set.getKey(), set.getValue());
93             }
94         }
95         //将两个文档的xml内容进行拼接
96         CTBody makeBody = CTBody.Factory.parse(prefix+mainPart+addPart+sufix);
97         src.set(makeBody);
98     }
99 }