如何从java中的文档模板生成动态word文档？

<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi</artifactId>
    <version>4.1.2</version>
</dependency>
<dependency>
    <groupId>org.apache.poi</groupId>
    <artifactId>poi-ooxml</artifactId>
    <version>4.1.2</version>
</dependency>

import org.apache.poi.xwpf.usermodel.*;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.HashMap;
import java.util.Map;

public class WordTemplateGenerator {
    public static void main(String[] args) {
        try {
            // 加载Word文档模板
            XWPFDocument document = new XWPFDocument(new FileInputStream("template.docx"));

            // 创建一个占位符替换映射
            Map<String, String> placeholderMap = new HashMap<>();
            placeholderMap.put("name", "John Doe");
            placeholderMap.put("email", "johndoe@example.com");

            // 替换占位符
            for (XWPFParagraph paragraph : document.getParagraphs()) {
                for (XWPFRun run : paragraph.getRuns()) {
                    String text = run.getText(0);
                    if (text != null) {
                        for (Map.Entry<String, String> entry : placeholderMap.entrySet()) {
                            text = text.replace(entry.getKey(), entry.getValue());
                        }
                        run.setText(text, 0);
                    }
                }
            }

            // 保存生成的动态Word文档
            FileOutputStream outputStream = new FileOutputStream("output.docx");
            document.write(outputStream);
            outputStream.close();

            System.out.println("动态Word文档生成成功！");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}