java生成word文档多级目录

在Java中，生成Word文档的多级目录通常通过Apache POI库来实现，它是HSSF和XSSF两个主要模块的组合，分别对应Excel的旧版（HSSF）和新版本（XSSF），以及处理Microsoft Office Open XML (OOXML) 格式的POI-OOXML。

以下是一个简单的示例，展示如何使用Apache POI创建Word文档并添加多级目录：

import org.apache.poi.xwpf.usermodel.*;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTDocumentProperties;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.CTPackageProperties;

public void createMultiLevelDirectory(XWPFDocument document) {
    // 创建大纲级别
    XWPFParagraph paragraph = document.createParagraph();
    XWPFRun run = paragraph.createRun();
    CTBody body = document.getDocument().getBody();

    // 添加一级标题
    XWPFAbstractNum num1 = document.addAbstractNum("Heading 1");
    XWPFNumbering numbering1 = document.createNumbering();
    numbering1.setAbstractNumId(num1.getId());
    paragraph.getCTP().setPPr(numbering1.getPPr());

    // 添加二级标题
    XWPFAbstractNum num2 = document.addAbstractNum("Heading 2");
    XWPFPicture picture = document.insertImage("path_to_image.jpg", CTImageObject.PICTURE_TYPE_JPEG);
    paragraph = document.createParagraph();
    paragraph.addNewNumbering();
    paragraph.getCTP().addNewPPr();
    paragraph.getCTP().getPPr().setPStyle(num2.getPStyle());

    // 示例数据插入文本
    paragraph.setText("一级标题 - 第一层");
    paragraph.addRun(picture);

    // 添加目录
    CTDocumentProperties properties = document.getProperties();
    CTPackageProperties packageProperties = properties.getPackageProperties();
    CTCoreProperties coreProps = packageProperties.getCoreProperties();
    coreProps.setDocTitle("我的文档标题");

    List<XWPFHeaderFooter> headersFooters = document.getHeadersFooters();
    for (XWPFHeaderFooter headerFooter : headersFooters) {
        if (headerFooter.getHeaderOrFooterType() == HeaderFooterType.HEADER_PRIMARY) {
            addTOCEntry(headerFooter, "一级标题", 0);
            break;
        }
    }

    private void addTOCEntry(XWPFHeaderFooter headerFooter, String title, int level) {
        XWPFTable ofContents = headerFooter.createTOC();
        XWPFTableRow row = ofContents.addRow();
        row.getCell(0).addText(title);
        CTTOCPart tocPart = ofContents.getCTTBodies().get(0).addNewTOC();
        tocPart.setStartAt(level);
        tocPart.set_lvl(level);
        tocPart.setRef(title);
    }
}

// 调用方法
try {
    XWPFDocument document = new XWPFDocument();
    createMultiLevelDirectory(document);
    // ...保存到文件
} catch (Exception e) {
    e.printStackTrace();
}