poi 实现html转word 并添加页眉

使用 Apache POI 可以将 HTML 转换为 Word 文档，并添加页眉。下面是一个示例代码：

import java.io.*;
import org.apache.poi.xwpf.usermodel.*;
import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;
import org.apache.poi.xwpf.usermodel.ParagraphAlignment;

public class HtmlToWord {
    public static void main(String[] args) throws Exception {
        // 读取 HTML 文件内容
        String html = "";
        BufferedReader br = new BufferedReader(new FileReader("input.html"));
        String line = null;
        while ((line = br.readLine()) != null) {
            html += line;
        }
        br.close();

        // 创建 Word 文档对象
        XWPFDocument doc = new XWPFDocument();

        // 添加页眉
        XWPFHeaderFooterPolicy headerFooterPolicy = doc.getHeaderFooterPolicy();
        if (headerFooterPolicy == null) {
            headerFooterPolicy = doc.createHeaderFooterPolicy();
        }
        XWPFHeader header = headerFooterPolicy.createHeader(XWPFHeaderFooterPolicy.DEFAULT);
        XWPFParagraph headerParagraph = header.createParagraph();
        headerParagraph.setAlignment(ParagraphAlignment.CENTER);
        XWPFRun headerRun = headerParagraph.createRun();
        headerRun.setText("页眉内容");

        // 将 HTML 转换为 Word 内容
        XWPFParagraph paragraph = doc.createParagraph();
        XWPFRun run = paragraph.createRun();
        run.setText(html);

        // 保存 Word 文档
        FileOutputStream fos = new FileOutputStream("output.docx");
        doc.write(fos);
        fos.close();
    }
}

需要注意的是，转换的 HTML 格式需要符合 Word 文档的格式要求，否则可能会出现样式错乱等问题。