Docx4j替换word文档的页眉

Docx4j替换word文档的页眉

目前国内关于Docx4j的帖子少的可怜，看来看去都是那几个。本人使用Docx4j也有一段时间，虽然还有许多东西没了解全，但在这边想分享我的学习经验，互相交流，也方便自己以后回顾。
1、若想了解如何为word插入页眉页脚，请百度（一大堆都是）。
2、在看该文章之前需要大致了解下什么是Docx4j，是操作哪一种版本的word。需要对XML有一点了解。
3、废话不说，看代码。
（1）为方便，写一个抽象类

public abstract class Docx4jAbstract {    protected WordprocessingMLPackage wordMLPackage;    protected MainDocumentPart documentPart;    public AbstractOp(WordprocessingMLPackage wordMLPackage) {        this.wordMLPackage = wordMLPackage;        this.documentPart = wordMLPackage.getMainDocumentPart();    }}

（2）主要内容

public class HeaderAndFooter extends Docx4jAbstract {    private boolean revision = false;//是否需要修订记录    private String author = "";//修订记录的作者    public HeaderFooterOp(WordprocessingMLPackage wordMLPackage) {        super(wordMLPackage);    }    public void setRevision (boolean revision ) {        this.revision = revision ;    }    public void setAuthor(String author) {        this.author = author;    }    /**     * 替换页眉     *     * @param content 要替换的内容     */    public void replaceHeader(String content) throws Exception {        /**         * .docx文件里面其实包含了三个header（header1、header2、header3）         * 其中有一个header为首页不同的header（为什么是其中一个呢？因为不同文档header存放的内容并不是固定的）         * 这边主要思路是找到header，将里面的P（段落）内的内容替换掉。         */        List<SectionWrapper> sections = this.wordMLPackage.getDocumentModel().getSections();        if (null == sections || 0 == sections.size()) return;        for (int i = 0; i < sections.size(); i++) {            HeaderFooterPolicy headerFooterPolicy = sections.get(i).getHeaderFooterPolicy();            HeaderPart firstHeader = headerFooterPolicy.getFirstHeader();//首页不同的页眉的header            if (firstHeader != null) {                handleHeader(firstHeader, content);            }            HeaderPart headerPart = headerFooterPolicy.getDefaultHeader();//普通情况的页眉header            handleHeader(headerPart, content);        }    }    private void handleHeader(HeaderPart headerPart, String content) throws Exception {        List<Object> headList = headerPart.getContent();        for (Object headP : headList) {            if (headP instanceof P) {                P srcP = (P) headP;//获取文档中的页眉                deleteHeadRevision(headerPart, srcP);//删除原先的修订记录                String srcContent = extractText(srcP);//获取页眉的内容                P targetP = revision ? createDelAndInsP(srcContent, content, author, srcP.getPPr())                        : DocxUtils.createP(content, srcP.getPPr());//生成新的段落                int index = headerPart.getContent().indexOf(srcP);//获取索引                headerPart.getContent().remove(index);//删除原先的页眉                headerPart.getContent().add(index, targetP);//插入新的页眉            }        }    }    public void deleteHeadRevision(HeaderPart headerPart, P p) throws Exception {        List<Object> objList = headerPart.getContent();        deleteDocxRevision(objList,p);    }    public String extractText(Object object) {        StringWriter stringWriter = new StringWriter();        try {            stringWriter.getBuffer().setLength(0);            TextUtils.extractText(object, stringWriter);        } catch (Exception e) {            e.printStackTrace();        }        return stringWriter.getBuffer().toString();    }    public P createDelAndInsP(String srcContent, String replaceContent, String author, PPr ppr) {        P pDelAndIns = createDelAndInsP(srcContent, replaceContent, author);        pDelAndIns.setPPr(ppr);        return pDelAndIns;    }    public P createDelAndInsP(String srcContent, String replaceContent, String author) {        ObjectFactory factory = Context.getWmlObjectFactory();        P pDelAndIns = factory.createP();        insetIns(pDelAndIns, replaceContent, author);        insetDel(pDelAndIns, srcContent, author);        return pDelAndIns;    }    public void insetIns(P pIns, String content, String author) {        RunIns Ins = createRunIns(content, author);        pIns.getContent().add(Ins);    }    public RunIns createRunIns(String content, String author) {        ObjectFactory factory = Context.getWmlObjectFactory();        RunIns ins = factory.createRunIns();        R r = createR(factory, content);        ins.setAuthor(author);        ins.getCustomXmlOrSmartTagOrSdt().add(r);        return ins;    }    public void insetDel(P pDel, String content, String author) {        RunDel Del = createRunDel(content, author);        pDel.getContent().add(Del);    }    public RunDel createRunDel(String content, String author) {        ObjectFactory factory = Context.getWmlObjectFactory();        RunDel del = factory.createRunDel();        R rDel = factory.createR();        DelText delText = factory.createDelText();        delText.setValue(content);        rDel.getContent().add(delText);        del.setAuthor(author);        del.getCustomXmlOrSmartTagOrSdt().add(rDel);        return del;    }    public P createP(String content, PPr ppr) {        P p = createP(content);        p.setPPr(ppr);        return p;    }    public P createP(String content) {        ObjectFactory factory = Context.getWmlObjectFactory();        P p = factory.createP();        R r = createR(content);        p.getContent().add(r);        return p;    }}

（3）不懂请留言